Re: Fw: [Bug 215129] New: Linux kernel hangs during power down

[Thorsten Leemhuis <regressions@leemhuis.info>]

Hi, this is your Linux kernel regression tracker speaking.

On 24.11.21 23:45, Stephen Hemminger wrote:
> 
> 
> Begin forwarded message:
> 
> Date: Wed, 24 Nov 2021 21:14:53 +0000
> From: bugzilla-daemon@bugzilla.kernel.org
> To: stephen@networkplumber.org
> Subject: [Bug 215129] New: Linux kernel hangs during power down
> 
> 
> https://bugzilla.kernel.org/show_bug.cgi?id=215129
> 
>             Bug ID: 215129
>            Summary: Linux kernel hangs during power down
>            Product: Networking
>            Version: 2.5
>     Kernel Version: 5.15
>           Hardware: All
>                 OS: Linux
>               Tree: Mainline
>             Status: NEW
>           Severity: normal
>           Priority: P1
>          Component: Other
>           Assignee: stephen@networkplumber.org
>           Reporter: martin.stolpe@gmail.com
>         Regression: No
> 
> Created attachment 299703
>   --> https://bugzilla.kernel.org/attachment.cgi?id=299703&action=edit  
> Kernel log after timeout occured
> 
> On my system the kernel is waiting for a task during shutdown which doesn't
> complete.
> 
> The commit which causes this behavior is:
> [f32a213765739f2a1db319346799f130a3d08820] ethtool: runtime-resume netdev
> parent before ethtool ioctl ops
> 
> This bug causes also that the system gets unresponsive after starting Steam:
> https://steamcommunity.com/app/221410/discussions/2/3194736442566303600/

TWIMC: To be sure this issue doesn't fall through the cracks unnoticed,
I'm adding it to regzbot, my Linux kernel regression tracking bot:

#regzbot ^introduced f32a213765739f2a1db319346799f130a3d08820
#regzbot title net: kernel hangs during power down
#regzbot ignore-activity

Ciao, Thorsten, your Linux kernel regression tracker.

P.S.: As a Linux kernel regression tracker I'm getting a lot of reports
on my table. I can only look briefly into most of them. Unfortunately
therefore I sometimes will get things wrong or miss something important.
I hope that's not the case here; if you think it is, don't hesitate to
tell me about it in a public reply. That's in everyone's interest, as
what I wrote above might be misleading to everyone reading this; any
suggestion I gave they thus might sent someone reading this down the
wrong rabbit hole, which none of us wants.

BTW, I have no personal interest in this issue, which is tracked using
regzbot, my Linux kernel regression tracking bot
(https://linux-regtracking.leemhuis.info/regzbot/). I'm only posting
this mail to get things rolling again and hence don't need to be CC on
all further activities wrt to this regression.

P.S.: If you want to know more about regzbot, check out its
web-interface, the getting start guide, and/or the references documentation:

https://linux-regtracking.leemhuis.info/regzbot/
https://gitlab.com/knurd42/regzbot/-/blob/main/docs/getting_started.md
https://gitlab.com/knurd42/regzbot/-/blob/main/docs/reference.md

The last two documents will explain how you can interact with regzbot
yourself if your want to.

Hint for the reporter: when reporting a regression it's in your interest
to tell #regzbot about it in the report, as that will ensure the
regression gets on the radar of regzbot and the regression tracker.
That's in your interest, as they will make sure the report won't fall
through the cracks unnoticed.

Hint for developers: you normally don't need to care about regzbot, just
fix the issue as you normally would. Just remember to include a 'Link:'
tag to the report in the commit message, as explained in
Documentation/process/submitting-patches.rst
That aspect was recently was made more explicit in commit 1f57bd42b77c:
https://git.kernel.org/linus/1f57bd42b77c