Message ID | 94755525.20140501002553@eikelenboom.it |
---|---|
State | RFC, archived |
Delegated to: | David Miller |
Headers | show |
On 30/04/14 23:25, Sander Eikelenboom wrote: > > Wednesday, April 30, 2014, 10:53:39 PM, you wrote: > >> On 30/04/14 11:45, Sander Eikelenboom wrote: >>> Hi Zoltan, >>> >>> Your series "TX grant mapping with SKBTX_DEV_ZEROCOPY instead of copy", merged into mainline with merge commit 4caeccb4de76440e433a15009636e77d003eb3d6, >>> seem to introduce a subtle bug on network traffic between 2 guests on a bridge on the same host. >>> I have one guest running apache as webdav server with SSL and another guest that is using that is uploading large files to that webdav server. >>> Small requests (some get's and propfind's) seem to work ok, but when the bulk uploading begins it fails with: >>> >>> Attempt 1 failed. SSLError: [Errno 1] _ssl.c:1415: error:140943FC:SSL routines:SSL3_READ_BYTES:sslv3 alert bad record mac >>> Attempt 2 failed. SSLError: [Errno 1] _ssl.c:1415: error:140943FC:SSL routines:SSL3_READ_BYTES:sslv3 alert bad record mac >>> Attempt 3 failed. SSLError: [Errno 1] _ssl.c:1415: error:140943FC:SSL routines:SSL3_READ_BYTES:sslv3 alert bad record mac >>> Attempt 4 failed. SSLError: [Errno 1] _ssl.c:1415: error:140943FC:SSL routines:SSL3_READ_BYTES:sslv3 alert bad record mac >>> >>> So some how large (probably fragmented) packets can get mangled when from guest to guest on the same host. >>> I don't see this with clients that upload large files from external sources. >>> Probably if SSL wasn't complaining it would probably be unnoticed for longer and doing some silent corruption. >>> >>> I first blamed openssl, since it started around all the latest openssl mayhem and updates, but it turns out it is all xen-netback related again. >>> >>> Since these commits break bisectabillity: >>> - 1bb332af4cd889e4b64dacbf4a793ceb3a70445d (note in commit message && kernel panic) >>> - 62bad3199a4c20505fc36c169deef20b25e17c5f (kernel panic) >>> i stopped bisecting at this point. >>> >>> The upside is .. it's 100% reproduceable :-) >> That's good :) Can you take tcpdump captures along the way (sending >> guest, dom0, receiving guest), and try to work out which packets are >> different, and where? Although taking captures in Dom0 might change your >> result, as it triggers the pages to be copied and unmapped before they >> reach their target. > >> Thanks, >> Zoli > > > Hrrmm that sounds like a lot of data and a lot of work .. If you could make captures in the sending and receiving guest with tcpdump (take care of increasing snaplen so the whole packet is there, and filter to the SSH connection itself), and upload it somewhere for me, that would be enough for start. I will try to work out where the corruption happens. Also, do you have timestamps for the above mentioned log entries? I guess they appear on the receiving side. And some info about the componenets on the server, so I can work out where is that _ssl.c:1415, and which part of the packet it actually looks for. > > how ever .. could it be just a type and would the following make sense ? > > diff --git a/drivers/net/xen-netback/netback.c b/drivers/net/xen-netback/netback.c > index 7666540..abeea10 100644 > --- a/drivers/net/xen-netback/netback.c > +++ b/drivers/net/xen-netback/netback.c > @@ -1366,7 +1366,7 @@ static int xenvif_handle_frag_list(struct xenvif *vif, struct sk_buff *skb) > > xenvif_fill_frags(vif, nskb); > /* Subtract frags size, we will correct it later */ > - skb->truesize -= skb->data_len; > + skb->truesize -= nskb->data_len; > skb->len += nskb->len; > skb->data_len += nskb->len; Nope, that's correct there: after that skb->truesize will be the size of the struct plus the linear buffer itself. The code is just about the ditch the original fragments plus the skb on the frag_list. When the new pages are created, it will update it again. Also, this code path runs only if the guest sends more slots we can handle (so we put the extra one to the frag_list until we can get rid of it). On Linux it can only happen with 3.2 or older guest kernels, and only occasionally. As you said, this is 100% reproducible, so I would doubt the problem is with this part of the code. Zoli -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Thursday, May 1, 2014, 3:37:41 PM, you wrote: > On 30/04/14 23:25, Sander Eikelenboom wrote: >> >> Wednesday, April 30, 2014, 10:53:39 PM, you wrote: >> >>> On 30/04/14 11:45, Sander Eikelenboom wrote: >>>> Hi Zoltan, >>>> >>>> Your series "TX grant mapping with SKBTX_DEV_ZEROCOPY instead of copy", merged into mainline with merge commit 4caeccb4de76440e433a15009636e77d003eb3d6, >>>> seem to introduce a subtle bug on network traffic between 2 guests on a bridge on the same host. >>>> I have one guest running apache as webdav server with SSL and another guest that is using that is uploading large files to that webdav server. >>>> Small requests (some get's and propfind's) seem to work ok, but when the bulk uploading begins it fails with: >>>> >>>> Attempt 1 failed. SSLError: [Errno 1] _ssl.c:1415: error:140943FC:SSL routines:SSL3_READ_BYTES:sslv3 alert bad record mac >>>> Attempt 2 failed. SSLError: [Errno 1] _ssl.c:1415: error:140943FC:SSL routines:SSL3_READ_BYTES:sslv3 alert bad record mac >>>> Attempt 3 failed. SSLError: [Errno 1] _ssl.c:1415: error:140943FC:SSL routines:SSL3_READ_BYTES:sslv3 alert bad record mac >>>> Attempt 4 failed. SSLError: [Errno 1] _ssl.c:1415: error:140943FC:SSL routines:SSL3_READ_BYTES:sslv3 alert bad record mac >>>> >>>> So some how large (probably fragmented) packets can get mangled when from guest to guest on the same host. >>>> I don't see this with clients that upload large files from external sources. >>>> Probably if SSL wasn't complaining it would probably be unnoticed for longer and doing some silent corruption. >>>> >>>> I first blamed openssl, since it started around all the latest openssl mayhem and updates, but it turns out it is all xen-netback related again. >>>> >>>> Since these commits break bisectabillity: >>>> - 1bb332af4cd889e4b64dacbf4a793ceb3a70445d (note in commit message && kernel panic) >>>> - 62bad3199a4c20505fc36c169deef20b25e17c5f (kernel panic) >>>> i stopped bisecting at this point. >>>> >>>> The upside is .. it's 100% reproduceable :-) >>> That's good :) Can you take tcpdump captures along the way (sending >>> guest, dom0, receiving guest), and try to work out which packets are >>> different, and where? Although taking captures in Dom0 might change your >>> result, as it triggers the pages to be copied and unmapped before they >>> reach their target. >> >>> Thanks, >>> Zoli >> >> >> Hrrmm that sounds like a lot of data and a lot of work .. > If you could make captures in the sending and receiving guest with > tcpdump (take care of increasing snaplen so the whole packet is there, > and filter to the SSH connection itself), and upload it somewhere for > me, that would be enough for start. I will try to work out where the > corruption happens. > Also, do you have timestamps for the above mentioned log entries? I > guess they appear on the receiving side. > And some info about the componenets on the server, so I can work out > where is that _ssl.c:1415, and which part of the packet it actually > looks for. They appear on the sending side (duplicity) .. the receiving side (apache + mod_dav + ssl | gnu_tls) gives a "Could not get next bucket brigade (URI:" >> >> how ever .. could it be just a type and would the following make sense ? >> >> diff --git a/drivers/net/xen-netback/netback.c b/drivers/net/xen-netback/netback.c >> index 7666540..abeea10 100644 >> --- a/drivers/net/xen-netback/netback.c >> +++ b/drivers/net/xen-netback/netback.c >> @@ -1366,7 +1366,7 @@ static int xenvif_handle_frag_list(struct xenvif *vif, struct sk_buff *skb) >> >> xenvif_fill_frags(vif, nskb); >> /* Subtract frags size, we will correct it later */ >> - skb->truesize -= skb->data_len; >> + skb->truesize -= nskb->data_len; >> skb->len += nskb->len; >> skb->data_len += nskb->len; > Nope, that's correct there: after that skb->truesize will be the size of > the struct plus the linear buffer itself. The code is just about the > ditch the original fragments plus the skb on the frag_list. When the new > pages are created, it will update it again. Well i just went a head and tried this .. and the uploading does seem to work fine with this change .. (that obviously doesn't say anything about correctness) > Also, this code path runs only if the guest sends more slots we can > handle (so we put the extra one to the frag_list until we can get rid of > it). On Linux it can only happen with 3.2 or older guest kernels, and > only occasionally. As you said, this is 100% reproducible, so I would > doubt the problem is with this part of the code. Well this assumption seems to be incorrect: - both dom0 and guest kernels are 3.15-rc3's. - but we do end up in this code path > Zoli -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
On 01/05/14 14:59, Sander Eikelenboom wrote: > > Thursday, May 1, 2014, 3:37:41 PM, you wrote: > >> On 30/04/14 23:25, Sander Eikelenboom wrote: >>> >>> Wednesday, April 30, 2014, 10:53:39 PM, you wrote: >>> >>>> On 30/04/14 11:45, Sander Eikelenboom wrote: >>>>> Hi Zoltan, >>>>> >>>>> Your series "TX grant mapping with SKBTX_DEV_ZEROCOPY instead of copy", merged into mainline with merge commit 4caeccb4de76440e433a15009636e77d003eb3d6, >>>>> seem to introduce a subtle bug on network traffic between 2 guests on a bridge on the same host. >>>>> I have one guest running apache as webdav server with SSL and another guest that is using that is uploading large files to that webdav server. >>>>> Small requests (some get's and propfind's) seem to work ok, but when the bulk uploading begins it fails with: >>>>> >>>>> Attempt 1 failed. SSLError: [Errno 1] _ssl.c:1415: error:140943FC:SSL routines:SSL3_READ_BYTES:sslv3 alert bad record mac >>>>> Attempt 2 failed. SSLError: [Errno 1] _ssl.c:1415: error:140943FC:SSL routines:SSL3_READ_BYTES:sslv3 alert bad record mac >>>>> Attempt 3 failed. SSLError: [Errno 1] _ssl.c:1415: error:140943FC:SSL routines:SSL3_READ_BYTES:sslv3 alert bad record mac >>>>> Attempt 4 failed. SSLError: [Errno 1] _ssl.c:1415: error:140943FC:SSL routines:SSL3_READ_BYTES:sslv3 alert bad record mac >>>>> >>>>> So some how large (probably fragmented) packets can get mangled when from guest to guest on the same host. >>>>> I don't see this with clients that upload large files from external sources. >>>>> Probably if SSL wasn't complaining it would probably be unnoticed for longer and doing some silent corruption. >>>>> >>>>> I first blamed openssl, since it started around all the latest openssl mayhem and updates, but it turns out it is all xen-netback related again. >>>>> >>>>> Since these commits break bisectabillity: >>>>> - 1bb332af4cd889e4b64dacbf4a793ceb3a70445d (note in commit message && kernel panic) >>>>> - 62bad3199a4c20505fc36c169deef20b25e17c5f (kernel panic) >>>>> i stopped bisecting at this point. >>>>> >>>>> The upside is .. it's 100% reproduceable :-) >>>> That's good :) Can you take tcpdump captures along the way (sending >>>> guest, dom0, receiving guest), and try to work out which packets are >>>> different, and where? Although taking captures in Dom0 might change your >>>> result, as it triggers the pages to be copied and unmapped before they >>>> reach their target. >>> >>>> Thanks, >>>> Zoli >>> >>> >>> Hrrmm that sounds like a lot of data and a lot of work .. >> If you could make captures in the sending and receiving guest with >> tcpdump (take care of increasing snaplen so the whole packet is there, >> and filter to the SSH connection itself), and upload it somewhere for >> me, that would be enough for start. I will try to work out where the >> corruption happens. >> Also, do you have timestamps for the above mentioned log entries? I >> guess they appear on the receiving side. >> And some info about the componenets on the server, so I can work out >> where is that _ssl.c:1415, and which part of the packet it actually >> looks for. > > They appear on the sending side (duplicity) .. the receiving side (apache + > mod_dav + ssl | gnu_tls) gives a "Could not get next bucket brigade (URI:" I will try to repro this case in house. What versions of these components you used? Zoli > > >>> >>> how ever .. could it be just a type and would the following make sense ? >>> >>> diff --git a/drivers/net/xen-netback/netback.c b/drivers/net/xen-netback/netback.c >>> index 7666540..abeea10 100644 >>> --- a/drivers/net/xen-netback/netback.c >>> +++ b/drivers/net/xen-netback/netback.c >>> @@ -1366,7 +1366,7 @@ static int xenvif_handle_frag_list(struct xenvif *vif, struct sk_buff *skb) >>> >>> xenvif_fill_frags(vif, nskb); >>> /* Subtract frags size, we will correct it later */ >>> - skb->truesize -= skb->data_len; >>> + skb->truesize -= nskb->data_len; >>> skb->len += nskb->len; >>> skb->data_len += nskb->len; > >> Nope, that's correct there: after that skb->truesize will be the size of >> the struct plus the linear buffer itself. The code is just about the >> ditch the original fragments plus the skb on the frag_list. When the new >> pages are created, it will update it again. > > Well i just went a head and tried this .. and the uploading does seem to work fine with this change > .. (that obviously doesn't say anything about correctness) > >> Also, this code path runs only if the guest sends more slots we can >> handle (so we put the extra one to the frag_list until we can get rid of >> it). On Linux it can only happen with 3.2 or older guest kernels, and >> only occasionally. As you said, this is 100% reproducible, so I would >> doubt the problem is with this part of the code. > > Well this assumption seems to be incorrect: > - both dom0 and guest kernels are 3.15-rc3's. > - but we do end up in this code path > >> Zoli > > -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Thursday, May 1, 2014, 5:46:01 PM, you wrote: > On 01/05/14 14:59, Sander Eikelenboom wrote: >> >> Thursday, May 1, 2014, 3:37:41 PM, you wrote: >> >>> On 30/04/14 23:25, Sander Eikelenboom wrote: >>>> >>>> Wednesday, April 30, 2014, 10:53:39 PM, you wrote: >>>> >>>>> On 30/04/14 11:45, Sander Eikelenboom wrote: >>>>>> Hi Zoltan, >>>>>> >>>>>> Your series "TX grant mapping with SKBTX_DEV_ZEROCOPY instead of copy", merged into mainline with merge commit 4caeccb4de76440e433a15009636e77d003eb3d6, >>>>>> seem to introduce a subtle bug on network traffic between 2 guests on a bridge on the same host. >>>>>> I have one guest running apache as webdav server with SSL and another guest that is using that is uploading large files to that webdav server. >>>>>> Small requests (some get's and propfind's) seem to work ok, but when the bulk uploading begins it fails with: >>>>>> >>>>>> Attempt 1 failed. SSLError: [Errno 1] _ssl.c:1415: error:140943FC:SSL routines:SSL3_READ_BYTES:sslv3 alert bad record mac >>>>>> Attempt 2 failed. SSLError: [Errno 1] _ssl.c:1415: error:140943FC:SSL routines:SSL3_READ_BYTES:sslv3 alert bad record mac >>>>>> Attempt 3 failed. SSLError: [Errno 1] _ssl.c:1415: error:140943FC:SSL routines:SSL3_READ_BYTES:sslv3 alert bad record mac >>>>>> Attempt 4 failed. SSLError: [Errno 1] _ssl.c:1415: error:140943FC:SSL routines:SSL3_READ_BYTES:sslv3 alert bad record mac >>>>>> >>>>>> So some how large (probably fragmented) packets can get mangled when from guest to guest on the same host. >>>>>> I don't see this with clients that upload large files from external sources. >>>>>> Probably if SSL wasn't complaining it would probably be unnoticed for longer and doing some silent corruption. >>>>>> >>>>>> I first blamed openssl, since it started around all the latest openssl mayhem and updates, but it turns out it is all xen-netback related again. >>>>>> >>>>>> Since these commits break bisectabillity: >>>>>> - 1bb332af4cd889e4b64dacbf4a793ceb3a70445d (note in commit message && kernel panic) >>>>>> - 62bad3199a4c20505fc36c169deef20b25e17c5f (kernel panic) >>>>>> i stopped bisecting at this point. >>>>>> >>>>>> The upside is .. it's 100% reproduceable :-) >>>>> That's good :) Can you take tcpdump captures along the way (sending >>>>> guest, dom0, receiving guest), and try to work out which packets are >>>>> different, and where? Although taking captures in Dom0 might change your >>>>> result, as it triggers the pages to be copied and unmapped before they >>>>> reach their target. >>>> >>>>> Thanks, >>>>> Zoli >>>> >>>> >>>> Hrrmm that sounds like a lot of data and a lot of work .. >>> If you could make captures in the sending and receiving guest with >>> tcpdump (take care of increasing snaplen so the whole packet is there, >>> and filter to the SSH connection itself), and upload it somewhere for >>> me, that would be enough for start. I will try to work out where the >>> corruption happens. >>> Also, do you have timestamps for the above mentioned log entries? I >>> guess they appear on the receiving side. >>> And some info about the componenets on the server, so I can work out >>> where is that _ssl.c:1415, and which part of the packet it actually >>> looks for. >> >> They appear on the sending side (duplicity) .. the receiving side (apache + >> mod_dav + ssl | gnu_tls) gives a "Could not get next bucket brigade (URI:" > I will try to repro this case in house. What versions of these > components you used? Both guests are debian wheezy. The webdav server has: ii apache2-mpm-event 2.2.22-13+deb7u1 amd64 Apache HTTP Server - event driven model ii apache2-utils 2.2.22-13+deb7u1 amd64 uti ii apache2.2-bin 2.2.22-13+deb7u1 amd64 Apa ii apache2.2-common 2.2.22-13+deb7u1 amd64 Apa ii libapache2-mod-gnutls 0.5.10-1.1 amd64 Apa ii libssl1.0.0:amd64 1.0.1e-2+deb7u7 amd64 SSL ii openssl 1.0.1e-2+deb7u7 amd64 Sec The guest with duplicity currently has a duplicity version from unstable recompiled for wheezy. But i previously also tried a downgrade to the standard wheezy version. It uses the webdav backend and a volumesize of 100MB. Unfortunately it seems duplicity doesn't bail out at first instance, it seems it only reports error after the so the full tcpdumps i got are also 100MB each. Since the error seems to happen when it's going through "xenvif_handle_frag_list", i have added a bunch of ratelimited printk's. Will run that for both the cases: skb->truesize -= skb->data_len; skb->truesize -= nskb->data_len; Let's see what that does different and if that gives an insight in what is going wrong. > Zoli >> >> >>>> >>>> how ever .. could it be just a type and would the following make sense ? >>>> >>>> diff --git a/drivers/net/xen-netback/netback.c b/drivers/net/xen-netback/netback.c >>>> index 7666540..abeea10 100644 >>>> --- a/drivers/net/xen-netback/netback.c >>>> +++ b/drivers/net/xen-netback/netback.c >>>> @@ -1366,7 +1366,7 @@ static int xenvif_handle_frag_list(struct xenvif *vif, struct sk_buff *skb) >>>> >>>> xenvif_fill_frags(vif, nskb); >>>> /* Subtract frags size, we will correct it later */ >>>> - skb->truesize -= skb->data_len; >>>> + skb->truesize -= nskb->data_len; >>>> skb->len += nskb->len; >>>> skb->data_len += nskb->len; >> >>> Nope, that's correct there: after that skb->truesize will be the size of >>> the struct plus the linear buffer itself. The code is just about the >>> ditch the original fragments plus the skb on the frag_list. When the new >>> pages are created, it will update it again. >> >> Well i just went a head and tried this .. and the uploading does seem to work fine with this change >> .. (that obviously doesn't say anything about correctness) >> >>> Also, this code path runs only if the guest sends more slots we can >>> handle (so we put the extra one to the frag_list until we can get rid of >>> it). On Linux it can only happen with 3.2 or older guest kernels, and >>> only occasionally. As you said, this is 100% reproducible, so I would >>> doubt the problem is with this part of the code. >> >> Well this assumption seems to be incorrect: >> - both dom0 and guest kernels are 3.15-rc3's. >> - but we do end up in this code path >> >>> Zoli >> >> -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
On Thu, 2014-05-01 at 19:39 +0200, Sander Eikelenboom wrote: > Will run that for both the cases: > skb->truesize -= skb->data_len; > skb->truesize -= nskb->data_len; > > Let's see what that does different and if that gives an insight in what is going > wrong. Playing with skb->truesize only makes TCP stack reacts faster to bloat, calling tcp collapse to save memory. So you might prevent the bug from happening, not really fix root cause. -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Thursday, May 1, 2014, 7:39:36 PM, you wrote: > Thursday, May 1, 2014, 5:46:01 PM, you wrote: >> On 01/05/14 14:59, Sander Eikelenboom wrote: >>> >>> Thursday, May 1, 2014, 3:37:41 PM, you wrote: >>> >>>> On 30/04/14 23:25, Sander Eikelenboom wrote: >>>>> >>>>> Wednesday, April 30, 2014, 10:53:39 PM, you wrote: >>>>> >>>>>> On 30/04/14 11:45, Sander Eikelenboom wrote: >>>>>>> Hi Zoltan, >>>>>>> >>>>>>> Your series "TX grant mapping with SKBTX_DEV_ZEROCOPY instead of copy", merged into mainline with merge commit 4caeccb4de76440e433a15009636e77d003eb3d6, >>>>>>> seem to introduce a subtle bug on network traffic between 2 guests on a bridge on the same host. >>>>>>> I have one guest running apache as webdav server with SSL and another guest that is using that is uploading large files to that webdav server. >>>>>>> Small requests (some get's and propfind's) seem to work ok, but when the bulk uploading begins it fails with: >>>>>>> >>>>>>> Attempt 1 failed. SSLError: [Errno 1] _ssl.c:1415: error:140943FC:SSL routines:SSL3_READ_BYTES:sslv3 alert bad record mac >>>>>>> Attempt 2 failed. SSLError: [Errno 1] _ssl.c:1415: error:140943FC:SSL routines:SSL3_READ_BYTES:sslv3 alert bad record mac >>>>>>> Attempt 3 failed. SSLError: [Errno 1] _ssl.c:1415: error:140943FC:SSL routines:SSL3_READ_BYTES:sslv3 alert bad record mac >>>>>>> Attempt 4 failed. SSLError: [Errno 1] _ssl.c:1415: error:140943FC:SSL routines:SSL3_READ_BYTES:sslv3 alert bad record mac >>>>>>> >>>>>>> So some how large (probably fragmented) packets can get mangled when from guest to guest on the same host. >>>>>>> I don't see this with clients that upload large files from external sources. >>>>>>> Probably if SSL wasn't complaining it would probably be unnoticed for longer and doing some silent corruption. >>>>>>> >>>>>>> I first blamed openssl, since it started around all the latest openssl mayhem and updates, but it turns out it is all xen-netback related again. >>>>>>> >>>>>>> Since these commits break bisectabillity: >>>>>>> - 1bb332af4cd889e4b64dacbf4a793ceb3a70445d (note in commit message && kernel panic) >>>>>>> - 62bad3199a4c20505fc36c169deef20b25e17c5f (kernel panic) >>>>>>> i stopped bisecting at this point. >>>>>>> >>>>>>> The upside is .. it's 100% reproduceable :-) >>>>>> That's good :) Can you take tcpdump captures along the way (sending >>>>>> guest, dom0, receiving guest), and try to work out which packets are >>>>>> different, and where? Although taking captures in Dom0 might change your >>>>>> result, as it triggers the pages to be copied and unmapped before they >>>>>> reach their target. >>>>> >>>>>> Thanks, >>>>>> Zoli >>>>> >>>>> >>>>> Hrrmm that sounds like a lot of data and a lot of work .. >>>> If you could make captures in the sending and receiving guest with >>>> tcpdump (take care of increasing snaplen so the whole packet is there, >>>> and filter to the SSH connection itself), and upload it somewhere for >>>> me, that would be enough for start. I will try to work out where the >>>> corruption happens. >>>> Also, do you have timestamps for the above mentioned log entries? I >>>> guess they appear on the receiving side. >>>> And some info about the componenets on the server, so I can work out >>>> where is that _ssl.c:1415, and which part of the packet it actually >>>> looks for. >>> >>> They appear on the sending side (duplicity) .. the receiving side (apache + >>> mod_dav + ssl | gnu_tls) gives a "Could not get next bucket brigade (URI:" >> I will try to repro this case in house. What versions of these >> components you used? > Both guests are debian wheezy. > The webdav server has: > ii apache2-mpm-event 2.2.22-13+deb7u1 amd64 Apache HTTP Server - event driven model > ii apache2-utils 2.2.22-13+deb7u1 amd64 uti > ii apache2.2-bin 2.2.22-13+deb7u1 amd64 Apa > ii apache2.2-common 2.2.22-13+deb7u1 amd64 Apa > ii libapache2-mod-gnutls 0.5.10-1.1 amd64 Apa > ii libssl1.0.0:amd64 1.0.1e-2+deb7u7 amd64 SSL > ii openssl 1.0.1e-2+deb7u7 amd64 Sec > The guest with duplicity currently has a duplicity version from unstable > recompiled for wheezy. But i previously also tried a downgrade to the standard > wheezy version. It uses the webdav backend and a volumesize of 100MB. > Unfortunately it seems duplicity doesn't bail out at first instance, it seems it > only reports error after the so the full tcpdumps i got are also 100MB each. > Since the error seems to happen when it's going through > "xenvif_handle_frag_list", i have added a bunch of ratelimited printk's. > Will run that for both the cases: > skb->truesize -= skb->data_len; > skb->truesize -= nskb->data_len; > Let's see what that does different and if that gives an insight in what is going > wrong. The debug patch that i used is attached. Here is some of the output, skb->data_len size sometimes varies slightly as does skb->truesize (is that allowed to become > 64k ?). All of it attached in dmesg.txt [ 647.256275] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 1: skb->data_len: 64890, skb->len: 65018, skb->truesize: 65658, nskb->data_len: 0, nskb->len: 0, nskb->truesize: 768 MAX_SKB_FRAGS:17 offset:128 [ 647.273483] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 2: skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:128 [ 647.291478] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:0, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:4224 [ 647.310199] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:1, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:8320 [ 647.329874] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:2, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:12416 [ 647.350268] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:3, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:16512 [ 647.371562] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:4, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:20608 [ 647.393707] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:5, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:24704 [ 647.416604] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:6, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:28800 [ 647.440482] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:7, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:32896 [ 647.465490] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:8, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:36992 [ 647.491216] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:9, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:41088 [ 647.517698] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:10, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:45184 [ 647.545022] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:11, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:49280 [ 647.573482] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:12, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:53376 [ 647.602458] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:13, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:57472 [ 647.632271] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:14, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:61568 [ 647.662608] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:15, len: 3658, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:65226 [ 647.693632] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 4: i:16, skb->data_len: 65098, skb->len: 65226, skb->truesize: 66304, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:65226 <snip> [ 848.058828] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 1: skb->data_len: 63493, skb->len: 63621, skb->truesize: 64261, nskb->data_len: 0, nskb->len: 0, nskb->truesize: 768 MAX_SKB_FRAGS:17 offset:128 [ 848.096299] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 2: skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 1605, nskb->len: 1605, nskb->truesize: 2373 MAX_SKB_FRAGS:17 offset:128 [ 848.133427] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 3: i:0, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 1605, nskb->len: 1605, nskb->truesize: 2373 MAX_SKB_FRAGS:17 offset:4224 [ 848.170519] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 3: i:1, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 1605, nskb->len: 1605, nskb->truesize: 2373 MAX_SKB_FRAGS:17 offset:8320 [ 848.207578] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 3: i:2, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 1605, nskb->len: 1605, nskb->truesize: 2373 MAX_SKB_FRAGS:17 offset:12416 [ 848.244847] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 3: i:3, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 1605, nskb->len: 1605, nskb->truesize: 2373 MAX_SKB_FRAGS:17 offset:16512 [ 848.282044] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 3: i:4, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 1605, nskb->len: 1605, nskb->truesize: 2373 MAX_SKB_FRAGS:17 offset:20608 [ 848.319114] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 3: i:5, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 1605, nskb->len: 1605, nskb->truesize: 2373 MAX_SKB_FRAGS:17 offset:24704 [ 848.356198] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 3: i:6, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 1605, nskb->len: 1605, nskb->truesize: 2373 MAX_SKB_FRAGS:17 offset:28800 [ 848.393369] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 3: i:7, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 1605, nskb->len: 1605, nskb->truesize: 2373 MAX_SKB_FRAGS:17 offset:32896 [ 848.430450] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 3: i:8, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 1605, nskb->len: 1605, nskb->truesize: 2373 MAX_SKB_FRAGS:17 offset:36992 [ 848.467631] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 3: i:9, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 1605, nskb->len: 1605, nskb->truesize: 2373 MAX_SKB_FRAGS:17 offset:41088 [ 848.504711] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 3: i:10, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 1605, nskb->len: 1605, nskb->truesize: 2373 MAX_SKB_FRAGS:17 offset:45184 [ 848.541759] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 3: i:11, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 1605, nskb->len: 1605, nskb->truesize: 2373 MAX_SKB_FRAGS:17 offset:49280 [ 848.578914] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 3: i:12, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 1605, nskb->len: 1605, nskb->truesize: 2373 MAX_SKB_FRAGS:17 offset:53376 [ 848.616120] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 3: i:13, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 1605, nskb->len: 1605, nskb->truesize: 2373 MAX_SKB_FRAGS:17 offset:57472 [ 848.653251] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 3: i:14, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 1605, nskb->len: 1605, nskb->truesize: 2373 MAX_SKB_FRAGS:17 offset:61568 [ 848.690269] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 3: i:15, len: 3658, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 1605, nskb->len: 1605, nskb->truesize: 2373 MAX_SKB_FRAGS:17 offset:65226 [ 848.727394] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 4: i:16, skb->data_len: 65098, skb->len: 65226, skb->truesize: 66304, nskb->data_len: 1605, nskb->len: 1605, nskb->truesize: 2373 MAX_SKB_FRAGS:17 offset:65226 >> Zoli >>> >>> >>>>> >>>>> how ever .. could it be just a type and would the following make sense ? >>>>> >>>>> diff --git a/drivers/net/xen-netback/netback.c b/drivers/net/xen-netback/netback.c >>>>> index 7666540..abeea10 100644 >>>>> --- a/drivers/net/xen-netback/netback.c >>>>> +++ b/drivers/net/xen-netback/netback.c >>>>> @@ -1366,7 +1366,7 @@ static int xenvif_handle_frag_list(struct xenvif *vif, struct sk_buff *skb) >>>>> >>>>> xenvif_fill_frags(vif, nskb); >>>>> /* Subtract frags size, we will correct it later */ >>>>> - skb->truesize -= skb->data_len; >>>>> + skb->truesize -= nskb->data_len; >>>>> skb->len += nskb->len; >>>>> skb->data_len += nskb->len; >>> >>>> Nope, that's correct there: after that skb->truesize will be the size of >>>> the struct plus the linear buffer itself. The code is just about the >>>> ditch the original fragments plus the skb on the frag_list. When the new >>>> pages are created, it will update it again. >>> >>> Well i just went a head and tried this .. and the uploading does seem to work fine with this change >>> .. (that obviously doesn't say anything about correctness) >>> >>>> Also, this code path runs only if the guest sends more slots we can >>>> handle (so we put the extra one to the frag_list until we can get rid of >>>> it). On Linux it can only happen with 3.2 or older guest kernels, and >>>> only occasionally. As you said, this is 100% reproducible, so I would >>>> doubt the problem is with this part of the code. >>> >>> Well this assumption seems to be incorrect: >>> - both dom0 and guest kernels are 3.15-rc3's. >>> - but we do end up in this code path >>> >>>> Zoli >>> >>> [ 647.256275] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 1: skb->data_len: 64890, skb->len: 65018, skb->truesize: 65658, nskb->data_len: 0, nskb->len: 0, nskb->truesize: 768 MAX_SKB_FRAGS:17 offset:128 [ 647.273483] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 2: skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:128 [ 647.291478] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:0, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:4224 [ 647.310199] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:1, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:8320 [ 647.329874] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:2, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:12416 [ 647.350268] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:3, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:16512 [ 647.371562] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:4, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:20608 [ 647.393707] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:5, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:24704 [ 647.416604] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:6, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:28800 [ 647.440482] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:7, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:32896 [ 647.465490] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:8, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:36992 [ 647.491216] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:9, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:41088 [ 647.517698] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:10, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:45184 [ 647.545022] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:11, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:49280 [ 647.573482] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:12, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:53376 [ 647.602458] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:13, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:57472 [ 647.632271] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:14, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:61568 [ 647.662608] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:15, len: 3658, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:65226 [ 647.693632] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 4: i:16, skb->data_len: 65098, skb->len: 65226, skb->truesize: 66304, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:65226 [ 649.414573] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 1: skb->data_len: 64890, skb->len: 65018, skb->truesize: 65658, nskb->data_len: 0, nskb->len: 0, nskb->truesize: 768 MAX_SKB_FRAGS:17 offset:128 [ 649.446875] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 2: skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:128 [ 649.479712] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:0, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:4224 [ 649.513526] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:1, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:8320 [ 649.548224] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:2, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:12416 [ 649.583843] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:3, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:16512 [ 649.620419] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:4, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:20608 [ 649.656850] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:5, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:24704 [ 649.693345] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:6, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:28800 [ 649.729791] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:7, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:32896 [ 649.766281] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:8, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:36992 [ 649.802743] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:9, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:41088 [ 649.839016] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:10, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:45184 [ 649.875328] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:11, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:49280 [ 649.911741] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:12, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:53376 [ 649.948226] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:13, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:57472 [ 649.984807] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:14, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:61568 [ 650.021272] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:15, len: 3658, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:65226 [ 650.057684] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 4: i:16, skb->data_len: 65098, skb->len: 65226, skb->truesize: 66304, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:65226 [ 652.492437] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 1: skb->data_len: 64890, skb->len: 65018, skb->truesize: 65658, nskb->data_len: 0, nskb->len: 0, nskb->truesize: 768 MAX_SKB_FRAGS:17 offset:128 [ 652.529449] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 2: skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:128 [ 652.566929] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:0, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:4224 [ 652.604369] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:1, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:8320 [ 652.641988] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:2, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:12416 [ 652.678511] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:3, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:16512 [ 652.715271] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:4, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:20608 [ 652.751966] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:5, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:24704 [ 652.788462] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:6, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:28800 [ 652.825056] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:7, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:32896 [ 652.861489] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:8, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:36992 [ 652.897905] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:9, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:41088 [ 652.934487] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:10, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:45184 [ 652.970949] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:11, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:49280 [ 653.007494] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:12, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:53376 [ 653.044031] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:13, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:57472 [ 653.080523] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:14, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:61568 [ 653.117052] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:15, len: 3658, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:65226 [ 653.153527] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 4: i:16, skb->data_len: 65098, skb->len: 65226, skb->truesize: 66304, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:65226 [ 655.525800] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 1: skb->data_len: 64890, skb->len: 65018, skb->truesize: 65658, nskb->data_len: 0, nskb->len: 0, nskb->truesize: 768 MAX_SKB_FRAGS:17 offset:128 [ 655.562076] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 2: skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:128 [ 655.598432] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:0, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:4224 [ 655.634896] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:1, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:8320 [ 655.671385] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:2, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:12416 [ 655.707944] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:3, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:16512 [ 655.744320] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:4, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:20608 [ 655.780827] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:5, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:24704 [ 655.817153] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:6, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:28800 [ 655.853506] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:7, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:32896 [ 655.889807] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:8, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:36992 [ 655.926111] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:9, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:41088 [ 655.962352] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:10, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:45184 [ 655.998600] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:11, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:49280 [ 656.035006] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:12, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:53376 [ 656.071326] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:13, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:57472 [ 656.107808] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:14, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:61568 [ 656.144187] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:15, len: 3658, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:65226 [ 656.180530] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 4: i:16, skb->data_len: 65098, skb->len: 65226, skb->truesize: 66304, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:65226 [ 658.856034] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 1: skb->data_len: 64890, skb->len: 65018, skb->truesize: 65658, nskb->data_len: 0, nskb->len: 0, nskb->truesize: 768 MAX_SKB_FRAGS:17 offset:128 [ 658.892355] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 2: skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:128 [ 658.928764] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:0, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:4224 [ 658.965306] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:1, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:8320 [ 659.001761] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:2, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:12416 [ 659.038131] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:3, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:16512 [ 659.074613] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:4, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:20608 [ 659.111052] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:5, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:24704 [ 659.147435] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:6, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:28800 [ 659.183944] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:7, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:32896 [ 659.220377] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:8, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:36992 [ 659.256625] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:9, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:41088 [ 659.292878] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:10, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:45184 [ 659.329281] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:11, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:49280 [ 659.365599] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:12, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:53376 [ 659.401836] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:13, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:57472 [ 659.438123] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:14, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:61568 [ 659.474606] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:15, len: 3658, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:65226 [ 659.511228] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 4: i:16, skb->data_len: 65098, skb->len: 65226, skb->truesize: 66304, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:65226 [ 661.870974] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 1: skb->data_len: 64890, skb->len: 65018, skb->truesize: 65658, nskb->data_len: 0, nskb->len: 0, nskb->truesize: 768 MAX_SKB_FRAGS:17 offset:128 [ 661.907302] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 2: skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:128 [ 661.943657] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:0, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:4224 [ 661.980003] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:1, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:8320 [ 662.016504] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:2, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:12416 [ 662.053062] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:3, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:16512 [ 662.089526] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:4, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:20608 [ 662.126300] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:5, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:24704 [ 662.163569] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:6, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:28800 [ 662.200974] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:7, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:32896 [ 662.238234] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:8, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:36992 [ 662.275453] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:9, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:41088 [ 662.312664] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:10, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:45184 [ 662.349759] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:11, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:49280 [ 662.386857] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:12, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:53376 [ 662.424123] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:13, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:57472 [ 662.461384] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:14, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:61568 [ 662.498482] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:15, len: 3658, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:65226 [ 662.535761] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 4: i:16, skb->data_len: 65098, skb->len: 65226, skb->truesize: 66304, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:65226 [ 711.539194] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 1: skb->data_len: 64890, skb->len: 65018, skb->truesize: 65658, nskb->data_len: 0, nskb->len: 0, nskb->truesize: 768 MAX_SKB_FRAGS:17 offset:128 [ 711.575559] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 2: skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:128 [ 711.611951] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:0, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:4224 [ 711.648457] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:1, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:8320 [ 711.684874] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:2, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:12416 [ 711.721430] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:3, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:16512 [ 711.757894] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:4, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:20608 [ 711.794277] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:5, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:24704 [ 711.830804] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:6, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:28800 [ 711.867244] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:7, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:32896 [ 711.903560] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:8, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:36992 [ 711.939864] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:9, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:41088 [ 711.976111] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:10, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:45184 [ 712.012379] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:11, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:49280 [ 712.048696] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:12, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:53376 [ 712.084923] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:13, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:57472 [ 712.121306] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:14, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:61568 [ 712.158434] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:15, len: 3658, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:65226 [ 712.195692] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 4: i:16, skb->data_len: 65098, skb->len: 65226, skb->truesize: 66304, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:65226 [ 714.572010] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 1: skb->data_len: 64890, skb->len: 65018, skb->truesize: 65658, nskb->data_len: 0, nskb->len: 0, nskb->truesize: 768 MAX_SKB_FRAGS:17 offset:128 [ 714.608229] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 2: skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:128 [ 714.644579] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:0, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:4224 [ 714.681161] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:1, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:8320 [ 714.717649] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:2, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:12416 [ 714.754211] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:3, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:16512 [ 714.790713] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:4, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:20608 [ 714.827114] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:5, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:24704 [ 714.863510] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:6, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:28800 [ 714.899816] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:7, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:32896 [ 714.936031] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:8, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:36992 [ 714.972206] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:9, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:41088 [ 715.008493] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:10, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:45184 [ 715.044660] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:11, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:49280 [ 715.080940] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:12, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:53376 [ 715.117158] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:13, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:57472 [ 715.153577] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:14, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:61568 [ 715.189873] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:15, len: 3658, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:65226 [ 715.226169] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 4: i:16, skb->data_len: 65098, skb->len: 65226, skb->truesize: 66304, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:65226 [ 717.636396] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 1: skb->data_len: 64890, skb->len: 65018, skb->truesize: 65658, nskb->data_len: 0, nskb->len: 0, nskb->truesize: 768 MAX_SKB_FRAGS:17 offset:128 [ 717.672682] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 2: skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:128 [ 717.709096] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:0, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:4224 [ 717.745732] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:1, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:8320 [ 717.782225] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:2, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:12416 [ 717.818636] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:3, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:16512 [ 717.854982] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:4, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:20608 [ 717.891310] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:5, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:24704 [ 717.927712] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:6, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:28800 [ 717.964088] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:7, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:32896 [ 718.000423] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:8, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:36992 [ 718.036703] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:9, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:41088 [ 718.073042] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:10, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:45184 [ 718.109200] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:11, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:49280 [ 718.145551] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:12, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:53376 [ 718.181877] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:13, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:57472 [ 718.218166] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:14, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:61568 [ 718.254524] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:15, len: 3658, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:65226 [ 718.290907] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 4: i:16, skb->data_len: 65098, skb->len: 65226, skb->truesize: 66304, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:65226 [ 720.614533] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 1: skb->data_len: 64890, skb->len: 65018, skb->truesize: 65658, nskb->data_len: 0, nskb->len: 0, nskb->truesize: 768 MAX_SKB_FRAGS:17 offset:128 [ 720.650891] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 2: skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:128 [ 720.687213] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:0, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:4224 [ 720.723691] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:1, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:8320 [ 720.760278] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:2, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:12416 [ 720.796663] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:3, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:16512 [ 720.833120] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:4, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:20608 [ 720.869423] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:5, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:24704 [ 720.905831] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:6, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:28800 [ 720.942218] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:7, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:32896 [ 720.978461] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:8, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:36992 [ 721.014809] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:9, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:41088 [ 721.051157] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:10, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:45184 [ 721.087463] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:11, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:49280 [ 721.123700] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:12, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:53376 [ 721.160019] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:13, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:57472 [ 721.196360] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:14, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:61568 [ 721.232777] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 3: i:15, len: 3658, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:65226 [ 721.269124] vif vif-8-0 vif8.0: ?!?!? xenvif_handle_frag_list 4: i:16, skb->data_len: 65098, skb->len: 65226, skb->truesize: 66304, nskb->data_len: 208, nskb->len: 208, nskb->truesize: 976 MAX_SKB_FRAGS:17 offset:65226 [ 737.790455] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 1: skb->data_len: 63776, skb->len: 63904, skb->truesize: 64544, nskb->data_len: 0, nskb->len: 0, nskb->truesize: 768 MAX_SKB_FRAGS:17 offset:128 [ 737.826664] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 2: skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 1322, nskb->len: 1322, nskb->truesize: 2090 MAX_SKB_FRAGS:17 offset:128 [ 737.863042] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 3: i:0, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 1322, nskb->len: 1322, nskb->truesize: 2090 MAX_SKB_FRAGS:17 offset:4224 [ 737.899319] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 3: i:1, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 1322, nskb->len: 1322, nskb->truesize: 2090 MAX_SKB_FRAGS:17 offset:8320 [ 737.935684] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 3: i:2, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 1322, nskb->len: 1322, nskb->truesize: 2090 MAX_SKB_FRAGS:17 offset:12416 [ 737.972131] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 3: i:3, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 1322, nskb->len: 1322, nskb->truesize: 2090 MAX_SKB_FRAGS:17 offset:16512 [ 738.008646] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 3: i:4, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 1322, nskb->len: 1322, nskb->truesize: 2090 MAX_SKB_FRAGS:17 offset:20608 [ 738.045190] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 3: i:5, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 1322, nskb->len: 1322, nskb->truesize: 2090 MAX_SKB_FRAGS:17 offset:24704 [ 738.081693] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 3: i:6, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 1322, nskb->len: 1322, nskb->truesize: 2090 MAX_SKB_FRAGS:17 offset:28800 [ 738.118163] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 3: i:7, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 1322, nskb->len: 1322, nskb->truesize: 2090 MAX_SKB_FRAGS:17 offset:32896 [ 738.154685] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 3: i:8, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 1322, nskb->len: 1322, nskb->truesize: 2090 MAX_SKB_FRAGS:17 offset:36992 [ 738.191226] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 3: i:9, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 1322, nskb->len: 1322, nskb->truesize: 2090 MAX_SKB_FRAGS:17 offset:41088 [ 738.227824] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 3: i:10, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 1322, nskb->len: 1322, nskb->truesize: 2090 MAX_SKB_FRAGS:17 offset:45184 [ 738.264475] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 3: i:11, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 1322, nskb->len: 1322, nskb->truesize: 2090 MAX_SKB_FRAGS:17 offset:49280 [ 738.301130] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 3: i:12, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 1322, nskb->len: 1322, nskb->truesize: 2090 MAX_SKB_FRAGS:17 offset:53376 [ 738.337765] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 3: i:13, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 1322, nskb->len: 1322, nskb->truesize: 2090 MAX_SKB_FRAGS:17 offset:57472 [ 738.374508] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 3: i:14, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 1322, nskb->len: 1322, nskb->truesize: 2090 MAX_SKB_FRAGS:17 offset:61568 [ 738.411239] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 3: i:15, len: 3658, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 1322, nskb->len: 1322, nskb->truesize: 2090 MAX_SKB_FRAGS:17 offset:65226 [ 738.448196] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 4: i:16, skb->data_len: 65098, skb->len: 65226, skb->truesize: 66304, nskb->data_len: 1322, nskb->len: 1322, nskb->truesize: 2090 MAX_SKB_FRAGS:17 offset:65226 [ 738.488153] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 1: skb->data_len: 64272, skb->len: 64400, skb->truesize: 65040, nskb->data_len: 0, nskb->len: 0, nskb->truesize: 768 MAX_SKB_FRAGS:17 offset:128 [ 738.525066] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 2: skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 826, nskb->len: 826, nskb->truesize: 1594 MAX_SKB_FRAGS:17 offset:128 [ 738.561956] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 3: i:0, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 826, nskb->len: 826, nskb->truesize: 1594 MAX_SKB_FRAGS:17 offset:4224 [ 738.598782] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 3: i:1, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 826, nskb->len: 826, nskb->truesize: 1594 MAX_SKB_FRAGS:17 offset:8320 [ 738.635584] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 3: i:2, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 826, nskb->len: 826, nskb->truesize: 1594 MAX_SKB_FRAGS:17 offset:12416 [ 738.672372] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 3: i:3, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 826, nskb->len: 826, nskb->truesize: 1594 MAX_SKB_FRAGS:17 offset:16512 [ 738.709113] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 3: i:4, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 826, nskb->len: 826, nskb->truesize: 1594 MAX_SKB_FRAGS:17 offset:20608 [ 738.745999] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 3: i:5, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 826, nskb->len: 826, nskb->truesize: 1594 MAX_SKB_FRAGS:17 offset:24704 [ 738.782808] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 3: i:6, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 826, nskb->len: 826, nskb->truesize: 1594 MAX_SKB_FRAGS:17 offset:28800 [ 738.819531] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 3: i:7, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 826, nskb->len: 826, nskb->truesize: 1594 MAX_SKB_FRAGS:17 offset:32896 [ 738.856242] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 3: i:8, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 826, nskb->len: 826, nskb->truesize: 1594 MAX_SKB_FRAGS:17 offset:36992 [ 738.892914] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 3: i:9, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 826, nskb->len: 826, nskb->truesize: 1594 MAX_SKB_FRAGS:17 offset:41088 [ 738.929674] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 3: i:10, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 826, nskb->len: 826, nskb->truesize: 1594 MAX_SKB_FRAGS:17 offset:45184 [ 738.966431] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 3: i:11, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 826, nskb->len: 826, nskb->truesize: 1594 MAX_SKB_FRAGS:17 offset:49280 [ 739.003106] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 3: i:12, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 826, nskb->len: 826, nskb->truesize: 1594 MAX_SKB_FRAGS:17 offset:53376 [ 739.039790] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 3: i:13, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 826, nskb->len: 826, nskb->truesize: 1594 MAX_SKB_FRAGS:17 offset:57472 [ 739.076455] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 3: i:14, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 826, nskb->len: 826, nskb->truesize: 1594 MAX_SKB_FRAGS:17 offset:61568 [ 739.113280] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 3: i:15, len: 3658, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 826, nskb->len: 826, nskb->truesize: 1594 MAX_SKB_FRAGS:17 offset:65226 [ 739.150030] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 4: i:16, skb->data_len: 65098, skb->len: 65226, skb->truesize: 66304, nskb->data_len: 826, nskb->len: 826, nskb->truesize: 1594 MAX_SKB_FRAGS:17 offset:65226 [ 845.681762] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 1: skb->data_len: 63781, skb->len: 63909, skb->truesize: 64549, nskb->data_len: 0, nskb->len: 0, nskb->truesize: 768 MAX_SKB_FRAGS:17 offset:128 [ 845.718375] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 2: skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 1317, nskb->len: 1317, nskb->truesize: 2085 MAX_SKB_FRAGS:17 offset:128 [ 845.755217] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 3: i:0, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 1317, nskb->len: 1317, nskb->truesize: 2085 MAX_SKB_FRAGS:17 offset:4224 [ 845.792237] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 3: i:1, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 1317, nskb->len: 1317, nskb->truesize: 2085 MAX_SKB_FRAGS:17 offset:8320 [ 845.829065] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 3: i:2, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 1317, nskb->len: 1317, nskb->truesize: 2085 MAX_SKB_FRAGS:17 offset:12416 [ 845.865981] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 3: i:3, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 1317, nskb->len: 1317, nskb->truesize: 2085 MAX_SKB_FRAGS:17 offset:16512 [ 845.902879] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 3: i:4, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 1317, nskb->len: 1317, nskb->truesize: 2085 MAX_SKB_FRAGS:17 offset:20608 [ 845.939686] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 3: i:5, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 1317, nskb->len: 1317, nskb->truesize: 2085 MAX_SKB_FRAGS:17 offset:24704 [ 845.976513] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 3: i:6, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 1317, nskb->len: 1317, nskb->truesize: 2085 MAX_SKB_FRAGS:17 offset:28800 [ 846.013327] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 3: i:7, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 1317, nskb->len: 1317, nskb->truesize: 2085 MAX_SKB_FRAGS:17 offset:32896 [ 846.050279] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 3: i:8, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 1317, nskb->len: 1317, nskb->truesize: 2085 MAX_SKB_FRAGS:17 offset:36992 [ 846.087092] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 3: i:9, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 1317, nskb->len: 1317, nskb->truesize: 2085 MAX_SKB_FRAGS:17 offset:41088 [ 846.123988] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 3: i:10, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 1317, nskb->len: 1317, nskb->truesize: 2085 MAX_SKB_FRAGS:17 offset:45184 [ 846.160830] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 3: i:11, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 1317, nskb->len: 1317, nskb->truesize: 2085 MAX_SKB_FRAGS:17 offset:49280 [ 846.197770] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 3: i:12, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 1317, nskb->len: 1317, nskb->truesize: 2085 MAX_SKB_FRAGS:17 offset:53376 [ 846.234649] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 3: i:13, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 1317, nskb->len: 1317, nskb->truesize: 2085 MAX_SKB_FRAGS:17 offset:57472 [ 846.271673] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 3: i:14, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 1317, nskb->len: 1317, nskb->truesize: 2085 MAX_SKB_FRAGS:17 offset:61568 [ 846.308688] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 3: i:15, len: 3658, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 1317, nskb->len: 1317, nskb->truesize: 2085 MAX_SKB_FRAGS:17 offset:65226 [ 846.345665] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 4: i:16, skb->data_len: 65098, skb->len: 65226, skb->truesize: 66304, nskb->data_len: 1317, nskb->len: 1317, nskb->truesize: 2085 MAX_SKB_FRAGS:17 offset:65226 [ 846.385806] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 1: skb->data_len: 63573, skb->len: 63701, skb->truesize: 64341, nskb->data_len: 0, nskb->len: 0, nskb->truesize: 768 MAX_SKB_FRAGS:17 offset:128 [ 846.422804] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 2: skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 1525, nskb->len: 1525, nskb->truesize: 2293 MAX_SKB_FRAGS:17 offset:128 [ 846.459846] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 3: i:0, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 1525, nskb->len: 1525, nskb->truesize: 2293 MAX_SKB_FRAGS:17 offset:4224 [ 846.496936] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 3: i:1, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 1525, nskb->len: 1525, nskb->truesize: 2293 MAX_SKB_FRAGS:17 offset:8320 [ 846.534091] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 3: i:2, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 1525, nskb->len: 1525, nskb->truesize: 2293 MAX_SKB_FRAGS:17 offset:12416 [ 846.571193] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 3: i:3, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 1525, nskb->len: 1525, nskb->truesize: 2293 MAX_SKB_FRAGS:17 offset:16512 [ 846.608210] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 3: i:4, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 1525, nskb->len: 1525, nskb->truesize: 2293 MAX_SKB_FRAGS:17 offset:20608 [ 846.645347] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 3: i:5, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 1525, nskb->len: 1525, nskb->truesize: 2293 MAX_SKB_FRAGS:17 offset:24704 [ 846.682475] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 3: i:6, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 1525, nskb->len: 1525, nskb->truesize: 2293 MAX_SKB_FRAGS:17 offset:28800 [ 846.719510] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 3: i:7, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 1525, nskb->len: 1525, nskb->truesize: 2293 MAX_SKB_FRAGS:17 offset:32896 [ 846.756583] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 3: i:8, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 1525, nskb->len: 1525, nskb->truesize: 2293 MAX_SKB_FRAGS:17 offset:36992 [ 846.793713] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 3: i:9, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 1525, nskb->len: 1525, nskb->truesize: 2293 MAX_SKB_FRAGS:17 offset:41088 [ 846.830839] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 3: i:10, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 1525, nskb->len: 1525, nskb->truesize: 2293 MAX_SKB_FRAGS:17 offset:45184 [ 846.867992] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 3: i:11, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 1525, nskb->len: 1525, nskb->truesize: 2293 MAX_SKB_FRAGS:17 offset:49280 [ 846.905189] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 3: i:12, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 1525, nskb->len: 1525, nskb->truesize: 2293 MAX_SKB_FRAGS:17 offset:53376 [ 846.942346] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 3: i:13, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 1525, nskb->len: 1525, nskb->truesize: 2293 MAX_SKB_FRAGS:17 offset:57472 [ 846.979498] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 3: i:14, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 1525, nskb->len: 1525, nskb->truesize: 2293 MAX_SKB_FRAGS:17 offset:61568 [ 847.016635] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 3: i:15, len: 3658, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 1525, nskb->len: 1525, nskb->truesize: 2293 MAX_SKB_FRAGS:17 offset:65226 [ 847.053764] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 4: i:16, skb->data_len: 65098, skb->len: 65226, skb->truesize: 66304, nskb->data_len: 1525, nskb->len: 1525, nskb->truesize: 2293 MAX_SKB_FRAGS:17 offset:65226 [ 847.350180] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 1: skb->data_len: 63701, skb->len: 63829, skb->truesize: 64469, nskb->data_len: 0, nskb->len: 0, nskb->truesize: 768 MAX_SKB_FRAGS:17 offset:128 [ 847.387265] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 2: skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 1397, nskb->len: 1397, nskb->truesize: 2165 MAX_SKB_FRAGS:17 offset:128 [ 847.424350] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 3: i:0, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 1397, nskb->len: 1397, nskb->truesize: 2165 MAX_SKB_FRAGS:17 offset:4224 [ 847.461589] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 3: i:1, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 1397, nskb->len: 1397, nskb->truesize: 2165 MAX_SKB_FRAGS:17 offset:8320 [ 847.498778] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 3: i:2, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 1397, nskb->len: 1397, nskb->truesize: 2165 MAX_SKB_FRAGS:17 offset:12416 [ 847.535850] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 3: i:3, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 1397, nskb->len: 1397, nskb->truesize: 2165 MAX_SKB_FRAGS:17 offset:16512 [ 847.573185] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 3: i:4, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 1397, nskb->len: 1397, nskb->truesize: 2165 MAX_SKB_FRAGS:17 offset:20608 [ 847.610237] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 3: i:5, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 1397, nskb->len: 1397, nskb->truesize: 2165 MAX_SKB_FRAGS:17 offset:24704 [ 847.647401] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 3: i:6, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 1397, nskb->len: 1397, nskb->truesize: 2165 MAX_SKB_FRAGS:17 offset:28800 [ 847.684447] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 3: i:7, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 1397, nskb->len: 1397, nskb->truesize: 2165 MAX_SKB_FRAGS:17 offset:32896 [ 847.721597] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 3: i:8, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 1397, nskb->len: 1397, nskb->truesize: 2165 MAX_SKB_FRAGS:17 offset:36992 [ 847.758702] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 3: i:9, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 1397, nskb->len: 1397, nskb->truesize: 2165 MAX_SKB_FRAGS:17 offset:41088 [ 847.795818] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 3: i:10, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 1397, nskb->len: 1397, nskb->truesize: 2165 MAX_SKB_FRAGS:17 offset:45184 [ 847.832903] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 3: i:11, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 1397, nskb->len: 1397, nskb->truesize: 2165 MAX_SKB_FRAGS:17 offset:49280 [ 847.870185] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 3: i:12, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 1397, nskb->len: 1397, nskb->truesize: 2165 MAX_SKB_FRAGS:17 offset:53376 [ 847.907377] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 3: i:13, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 1397, nskb->len: 1397, nskb->truesize: 2165 MAX_SKB_FRAGS:17 offset:57472 [ 847.944708] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 3: i:14, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 1397, nskb->len: 1397, nskb->truesize: 2165 MAX_SKB_FRAGS:17 offset:61568 [ 847.981927] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 3: i:15, len: 3658, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 1397, nskb->len: 1397, nskb->truesize: 2165 MAX_SKB_FRAGS:17 offset:65226 [ 848.019049] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 4: i:16, skb->data_len: 65098, skb->len: 65226, skb->truesize: 66304, nskb->data_len: 1397, nskb->len: 1397, nskb->truesize: 2165 MAX_SKB_FRAGS:17 offset:65226 [ 848.058828] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 1: skb->data_len: 63493, skb->len: 63621, skb->truesize: 64261, nskb->data_len: 0, nskb->len: 0, nskb->truesize: 768 MAX_SKB_FRAGS:17 offset:128 [ 848.096299] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 2: skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 1605, nskb->len: 1605, nskb->truesize: 2373 MAX_SKB_FRAGS:17 offset:128 [ 848.133427] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 3: i:0, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 1605, nskb->len: 1605, nskb->truesize: 2373 MAX_SKB_FRAGS:17 offset:4224 [ 848.170519] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 3: i:1, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 1605, nskb->len: 1605, nskb->truesize: 2373 MAX_SKB_FRAGS:17 offset:8320 [ 848.207578] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 3: i:2, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 1605, nskb->len: 1605, nskb->truesize: 2373 MAX_SKB_FRAGS:17 offset:12416 [ 848.244847] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 3: i:3, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 1605, nskb->len: 1605, nskb->truesize: 2373 MAX_SKB_FRAGS:17 offset:16512 [ 848.282044] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 3: i:4, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 1605, nskb->len: 1605, nskb->truesize: 2373 MAX_SKB_FRAGS:17 offset:20608 [ 848.319114] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 3: i:5, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 1605, nskb->len: 1605, nskb->truesize: 2373 MAX_SKB_FRAGS:17 offset:24704 [ 848.356198] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 3: i:6, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 1605, nskb->len: 1605, nskb->truesize: 2373 MAX_SKB_FRAGS:17 offset:28800 [ 848.393369] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 3: i:7, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 1605, nskb->len: 1605, nskb->truesize: 2373 MAX_SKB_FRAGS:17 offset:32896 [ 848.430450] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 3: i:8, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 1605, nskb->len: 1605, nskb->truesize: 2373 MAX_SKB_FRAGS:17 offset:36992 [ 848.467631] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 3: i:9, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 1605, nskb->len: 1605, nskb->truesize: 2373 MAX_SKB_FRAGS:17 offset:41088 [ 848.504711] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 3: i:10, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 1605, nskb->len: 1605, nskb->truesize: 2373 MAX_SKB_FRAGS:17 offset:45184 [ 848.541759] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 3: i:11, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 1605, nskb->len: 1605, nskb->truesize: 2373 MAX_SKB_FRAGS:17 offset:49280 [ 848.578914] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 3: i:12, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 1605, nskb->len: 1605, nskb->truesize: 2373 MAX_SKB_FRAGS:17 offset:53376 [ 848.616120] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 3: i:13, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 1605, nskb->len: 1605, nskb->truesize: 2373 MAX_SKB_FRAGS:17 offset:57472 [ 848.653251] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 3: i:14, len: 4096, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 1605, nskb->len: 1605, nskb->truesize: 2373 MAX_SKB_FRAGS:17 offset:61568 [ 848.690269] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 3: i:15, len: 3658, skb->data_len: 65098, skb->len: 65226, skb->truesize: 768, nskb->data_len: 1605, nskb->len: 1605, nskb->truesize: 2373 MAX_SKB_FRAGS:17 offset:65226 [ 848.727394] vif vif-9-0 vif9.0: ?!?!? xenvif_handle_frag_list 4: i:16, skb->data_len: 65098, skb->len: 65226, skb->truesize: 66304, nskb->data_len: 1605, nskb->len: 1605, nskb->truesize: 2373 MAX_SKB_FRAGS:17 offset:65226
>> Let's see what that does different and if that gives an insight in what is going >> wrong. > > The debug patch that i used is attached. > Here is some of the output, skb->data_len size sometimes varies slightly as does skb->truesize (is that allowed to become > 64k ?). Yes, truesize can be over 64K, as it includes the aligned size of the data itself (64k max), struct skbuff and struct shared_info. However my calculation for the truesize might be wrong: I count all the frags as full sized pages (skb->truesize += i * PAGE_SIZE), but the last page is not necessarily used entirely by that frag. I had the idea that truesize should include the size of the whole page as we reserved it with alloc_page for this skb, but it might not be true. Btw. with you "skb->truesize -= nskb->data_len;" version truesize should end up around 128k, something entirely wrong. Can you try with "skb->truesize -= nskb->data_len;" in that line? My repro env is underway in the meantime ... Regards, Zoli -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Friday, May 2, 2014, 4:00:40 PM, you wrote: >>> Let's see what that does different and if that gives an insight in what is going >>> wrong. >> >> The debug patch that i used is attached. >> Here is some of the output, skb->data_len size sometimes varies slightly as does skb->truesize (is that allowed to become > 64k ?). > Yes, truesize can be over 64K, as it includes the aligned size of the > data itself (64k max), struct skbuff and struct shared_info. > However my calculation for the truesize might be wrong: I count all the > frags as full sized pages (skb->truesize += i * PAGE_SIZE), but the last > page is not necessarily used entirely by that frag. > I had the idea that truesize should include the size of the whole page > as we reserved it with alloc_page for this skb, but it might not be true. Btw. with you "skb->>truesize -= nskb->data_len;" version truesize should > end up around 128k, something entirely wrong. Can you try with "skb->>truesize -= nskb->data_len;" in that line? > My repro env is underway in the meantime ... Erhmm i don't get this last part, first you entitle "skb->truesize -= nskb->data_len;" as being "entirely wrong" (which is probably true) Then you want me to try just that ? .. or did you mean something else ? > Regards, > Zoli -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/drivers/net/xen-netback/netback.c b/drivers/net/xen-netback/netback.c index 7666540..abeea10 100644 --- a/drivers/net/xen-netback/netback.c +++ b/drivers/net/xen-netback/netback.c @@ -1366,7 +1366,7 @@ static int xenvif_handle_frag_list(struct xenvif *vif, struct sk_buff *skb) xenvif_fill_frags(vif, nskb); /* Subtract frags size, we will correct it later */ - skb->truesize -= skb->data_len; + skb->truesize -= nskb->data_len; skb->len += nskb->len; skb->data_len += nskb->len;