Re: [PATCH 5.15 00/78] 5.15.55-rc1 review

[Guenter Roeck]

On 7/13/22 05:52, Naresh Kamboju wrote:
> On Wed, 13 Jul 2022 at 00:17, Greg Kroah-Hartman
> <gregkh@xxxxxxxxxxxxxxxxxxx> wrote:
> > This is the start of the stable review cycle for the 5.15.55 release.
> > There are 78 patches in this series, all will be posted as a response
> > to this one.  If anyone has any issues with these being applied, please
> > let me know.
> >
> > Responses should be made by Thu, 14 Jul 2022 18:32:19 +0000.
> > Anything received after that time might be too late.
> >
> > The whole patch series can be found in one patch at:
> >          https://www.kernel.org/pub/linux/kernel/v5.x/stable-review/patch-5.15.55-rc1.gz
> > or in the git tree and branch at:
> >          git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-5.15.y
> > and the diffstat can be found below.
> >
> > thanks,
> >
> > greg k-h
>
> Results from Linaro’s test farm.
> Regressions on x86_64.
>
> Reported-by: Linux Kernel Functional Testing <lkft@xxxxxxxxxx>
>
> 1) Kernel panic noticed on device x86_6 while running kvm-unit-tests.
>     - APIC base relocation is unsupported by KVM

Looking into the log, I don't think that message is related to the crash.

[   67.774572] APIC base relocation is unsupported by KVM
[  105.643057] kvm: emulating exchange as write  <--- warning
[  105.653717] int3: 0000 [#1] SMP PTI
[  105.653720] CPU: 3 PID: 3747 Comm: qemu-system-x86 Not tainted 5.15.55-rc1 #1
[  105.653721] Hardware name: Supermicro SYS-5019S-ML/X11SSH-F, BIOS
2.0b 07/27/2017
[  105.653722] RIP: 0010:xaddw_ax_dx+0x9/0x10
...
[  105.653777] Modules linked in: x86_pkg_temp_thermal
[  105.902123] ---[ end trace cec99cae36bcbfd7 ]---
[  105.902124] RIP: 0010:xaddw_ax_dx+0x9/0x10    <--- crash
[  105.902126] Code: 00 0f bb d0 c3 cc cc cc cc 48 0f bb d0 c3 cc cc

Guenter