mbox series

[0/6,lunar,linux-azure] Azure: CPU lockup in CVM instances

Message ID 20230712180141.713006-1-tim.gardner@canonical.com
Headers show
Series Azure: CPU lockup in CVM instances | expand

Message

Tim Gardner July 12, 2023, 6:01 p.m. UTC 
BugLink: https://bugs.launchpad.net/bugs/2026736

SRU Justification

[Impact]

Azure CVM instances can lock up when run under stress.

[Test Plan]

MSFT tested using the nttcp test. Reproducing the lockup often
requires several hours. MSFT has tested with this patch set for
at least one pass thus far.

[Regression potential]

CVM instances could continue to lock up under stress.

[Other info]

SF: #00363432

Comments

Cengiz Can July 12, 2023, 9:11 p.m. UTC | #1 
On Wed, 2023-07-12 at 12:01 -0600, Tim Gardner wrote:
> BugLink: https://bugs.launchpad.net/bugs/2026736
> 
> SRU Justification
> 
> [Impact]
> 
> Azure CVM instances can lock up when run under stress.
> 
> [Test Plan]
> 
> MSFT tested using the nttcp test. Reproducing the lockup often
> requires several hours. MSFT has tested with this patch set for
> at least one pass thus far.
> 
> [Regression potential]
> 
> CVM instances could continue to lock up under stress.
> 
> [Other info]
> 
> SF: #00363432

Acked-by: Cengiz Can <cengiz.can@canonical.com>

> 
> 
> 
>
John Cabaj July 17, 2023, 6:30 p.m. UTC | #2 
On 7/12/23 1:01 PM, Tim Gardner wrote:
> BugLink: https://bugs.launchpad.net/bugs/2026736
> 
> SRU Justification
> 
> [Impact]
> 
> Azure CVM instances can lock up when run under stress.
> 
> [Test Plan]
> 
> MSFT tested using the nttcp test. Reproducing the lockup often
> requires several hours. MSFT has tested with this patch set for
> at least one pass thus far.
> 
> [Regression potential]
> 
> CVM instances could continue to lock up under stress.
> 
> [Other info]
> 
> SF: #00363432
> 
> 
> 
> 

Acked-by: John Cabaj <john.cabaj@canonical.com>
Tim Gardner July 17, 2023, 6:38 p.m. UTC | #3 
On 7/12/23 12:01 PM, Tim Gardner wrote:
> BugLink: https://bugs.launchpad.net/bugs/2026736
> 
> SRU Justification
> 
> [Impact]
> 
> Azure CVM instances can lock up when run under stress.
> 
> [Test Plan]
> 
> MSFT tested using the nttcp test. Reproducing the lockup often
> requires several hours. MSFT has tested with this patch set for
> at least one pass thus far.
> 
> [Regression potential]
> 
> CVM instances could continue to lock up under stress.
> 
> [Other info]
> 
> SF: #00363432
> 
> 
> 
Applied to lunar linux-azure:master-next. Thanks.

-rtg