ACK: [PATCH 0/1][SRU][jammy:linux-azure] Azure: Jammy fio test causes panic

[Emil Renner Berthing]

On Wed, 16 Nov 2022 at 21:03, Tim Gardner <tim.gardner at canonical.com> wrote:
>
> BugLink: https://bugs.launchpad.net/bugs/1996806
>
> SRU Justification
>
> [Impact]
>
> During Storage performance tests, 16 disks are attached and fio is ran. The fio
> command does not consistently result in a kernel panic, but the test runs fio
> enough times to result in consistent kernel panic. The panic is most often
> observed on instances with many cores and disks.
>
> This panic fix qualifies for a respin.
>
> [Test Case]
>
> Using an instance with 96 cores and 16 disks:
>
> sudo fio --ioengine=libaio --bs=1024K --filename=/dev/sda:/dev/sdb:/dev/sdc:/dev/sdd:/dev/sde:/dev/sdf:/dev/sdg:/dev/sdh:/dev/sdi:/dev/sdj:/dev/sdk:/dev/sdl:/dev/sdm:/dev/sdn:/dev/sdo:/dev/sdp --readwrite=read --runtime=120 --iodepth=32 --numjob=96 --name=iteration23 --direct=1 --size=8192M --group_reporting --overwrite=1
>
> [Regression Potential]
>
> The fix is an upstream patch from 5.17, commit 0bd2fbee9d0b7f801a9c0264d90b1e0d8053f395 ('scsi:
> storvsc: Fix unsigned comparison to zero'). Regression potential is low.
>
> [Other Info]
>
> SF: #00346757

Acked-by: Emil Renner Berthing <emil.renner.berthing at canonical.com>

>
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