Re: [net] 6922110d15: suspend-stress.fail

From: Jakub Kicinski
Date: Tue Jun 07 2022 - 23:40:09 EST


On Sun, 5 Jun 2022 22:39:35 +0800 kernel test robot wrote:
> Greeting,
>
> FYI, we noticed the following commit (built with gcc-11):
>
> commit: 6922110d152e56d7569616b45a1f02876cf3eb9f ("net: linkwatch: fix failure to restore device state across suspend/resume")
> https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master
>
> in testcase: suspend-stress
> version:
> with following parameters:
>
> mode: freeze
> iterations: 10
>
>
>
> on test machine: 4 threads Ivy Bridge with 4G memory
>
> caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace):
>
>
>
>
> If you fix the issue, kindly add following tag
> Reported-by: kernel test robot <oliver.sang@xxxxxxxxx>
>
>
> Suspend to freeze 1/10:
> Done
> Suspend to freeze 2/10:
> network not ready
> network not ready
> network not ready
> network not ready
> network not ready
> network not ready
> network not ready
> network not ready
> network not ready
> network not ready
> network not ready
> Done

What's the failure? I'm looking at this script:

https://github.com/intel/lkp-tests/blob/master/tests/suspend-stress

And it seems that we are not actually hitting any "exit 1" paths here.