| Message ID | 1476859665-30133-9-git-send-email-caoj.fnst@cn.fujitsu.com |
|---|---|
| State | New |
| Headers | show |
Reviewed-by: Dmitry Fleytman <dmitry@daynix.com> > On 19 Oct 2016, at 09:47 AM, Cao jin <caoj.fnst@cn.fujitsu.com> wrote: > > On migration target, msix_vector_use() will be called in vmxnet3_post_load() > in second time, without a matching second call to msi_vector_unuse(), > which results in vector reference leak. > > CC: Dmitry Fleytman <dmitry@daynix.com> > CC: Jason Wang <jasowang@redhat.com> > CC: Markus Armbruster <armbru@redhat.com> > Signed-off-by: Cao jin <caoj.fnst@cn.fujitsu.com> > --- > hw/net/vmxnet3.c | 10 ---------- > 1 file changed, 10 deletions(-) > > diff --git a/hw/net/vmxnet3.c b/hw/net/vmxnet3.c > index 7d44af1..a9854e4 100644 > --- a/hw/net/vmxnet3.c > +++ b/hw/net/vmxnet3.c > @@ -2551,21 +2551,11 @@ static void vmxnet3_put_rxq_descr(QEMUFile *f, void *pv, size_t size) > static int vmxnet3_post_load(void *opaque, int version_id) > { > VMXNET3State *s = opaque; > - PCIDevice *d = PCI_DEVICE(s); > > net_tx_pkt_init(&s->tx_pkt, PCI_DEVICE(s), > s->max_tx_frags, s->peer_has_vhdr); > net_rx_pkt_init(&s->rx_pkt, s->peer_has_vhdr); > > - if (s->msix_used) { > - if (!vmxnet3_use_msix_vectors(s, VMXNET3_MAX_INTRS)) { > - VMW_WRPRN("Failed to re-use MSI-X vectors"); > - msix_uninit(d, &s->msix_bar, &s->msix_bar); > - s->msix_used = false; > - return -1; > - } > - } > - > vmxnet3_validate_queues(s); > vmxnet3_validate_interrupts(s); > > -- > 2.1.0 > > >
diff --git a/hw/net/vmxnet3.c b/hw/net/vmxnet3.c index 7d44af1..a9854e4 100644 --- a/hw/net/vmxnet3.c +++ b/hw/net/vmxnet3.c @@ -2551,21 +2551,11 @@ static void vmxnet3_put_rxq_descr(QEMUFile *f, void *pv, size_t size) static int vmxnet3_post_load(void *opaque, int version_id) { VMXNET3State *s = opaque; - PCIDevice *d = PCI_DEVICE(s); net_tx_pkt_init(&s->tx_pkt, PCI_DEVICE(s), s->max_tx_frags, s->peer_has_vhdr); net_rx_pkt_init(&s->rx_pkt, s->peer_has_vhdr); - if (s->msix_used) { - if (!vmxnet3_use_msix_vectors(s, VMXNET3_MAX_INTRS)) { - VMW_WRPRN("Failed to re-use MSI-X vectors"); - msix_uninit(d, &s->msix_bar, &s->msix_bar); - s->msix_used = false; - return -1; - } - } - vmxnet3_validate_queues(s); vmxnet3_validate_interrupts(s);
On migration target, msix_vector_use() will be called in vmxnet3_post_load() in second time, without a matching second call to msi_vector_unuse(), which results in vector reference leak. CC: Dmitry Fleytman <dmitry@daynix.com> CC: Jason Wang <jasowang@redhat.com> CC: Markus Armbruster <armbru@redhat.com> Signed-off-by: Cao jin <caoj.fnst@cn.fujitsu.com> --- hw/net/vmxnet3.c | 10 ---------- 1 file changed, 10 deletions(-)