RE: HW power fault defect cause system hang on kernel 5.4.y

From: Bao, Joseph
Date: Thu Nov 11 2021 - 20:47:48 EST


Yeah, other people may encounter a similar issue, I've created https://bugzilla.kernel.org/show_bug.cgi?id=214989 for reference including the patch from Stuart.

Regards
Joseph

-----Original Message-----
From: Krzysztof Wilczyński <kw@xxxxxxxxx>
Sent: Friday, November 12, 2021 8:44 AM
To: Bao, Joseph <joseph.bao@xxxxxxxxx>
Cc: Bjorn Helgaas <helgaas@xxxxxxxxxx>; Bjorn Helgaas <bhelgaas@xxxxxxxxxx>; linux-pci@xxxxxxxxxxxxxxx; linux-kernel@xxxxxxxxxxxxxxx; Stuart Hayes <stuart.w.hayes@xxxxxxxxx>; Lukas Wunner <lukas@xxxxxxxxx>; Sasha Levin <sashal@xxxxxxxxxx>
Subject: Re: HW power fault defect cause system hang on kernel 5.4.y

[+CC Adding Sasha for visibility]

> Thanks for the encouragement! Stuart already helps patch the hang
> issue, do I still go an open a report at https://bugzilla.kernel.org?

I am not sure what Bjorn would say here, however personally I say that it would be nice if you do open a bug there, if you have a minute, as it might help someone else who would stumble into this issue - a lot of people searches through Kernel's Bugzilla as part of their troubleshooting.

Also, as this is a hang in 5.4, and a lot of people uses this kernel, it might warrant a back-port to stable and long-term kernels.

Krzysztof