linux-kernel - Re: 5.4+: PAGE FAULT crashes the system multiple times per 24h

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <CAEJqkgir5yjgh-tnuz8dRgEG=Vpa6yU5K6hAA2oeBEmrLO7ubA@mail.gmail.com>
Date:   Mon, 10 Feb 2020 17:04:41 +0100
From:   Gabriel C <nix.or.die@...il.com>
To:     Udo van den Heuvel <udovdh@...all.nl>
Cc:     "linux-mm@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: 5.4+: PAGE FAULT crashes the system multiple times per 24h

Am Mo., 10. Feb. 2020 um 15:39 Uhr schrieb Udo van den Heuvel
<udovdh@...all.nl>:
>
> Hello,

Hi,

>
> Would this be a bug in the mm area?

I don' know, possible.
Can be everything and nothing, bad OC, bad RAM, broken firmware could
be a cause too.

>
> For bug https://bugzilla.kernel.org/show_bug.cgi?id=206191 I have been
> bisecting way but now the process landed me with a kernel that cannot
> find the root fs. (with either good or bad bisect choices)
>
> Pictures of the crash that is the reason for this bisect:
> https://bugzilla.kernel.org/attachment.cgi?id=286787
> https://bugzilla.kernel.org/attachment.cgi?id=286789
> https://bugzilla.kernel.org/attachment.cgi?id=286791
> https://bugzilla.kernel.org/attachment.cgi?id=286793
>

I looked at some of your logs. I hit freeze/crashes similar to yours
with an R3 APU a while back.
That was caused by a mismatch in kernel -> Xorg driver <-> mesa code + firmware.

I think first you should try to fix your amdgpu bug which is this one:
https://gitlab.freedesktop.org/drm/amd/issues/963

And the fixes are the patchset there:
https://patchwork.freedesktop.org/series/72733/

Also, can you try booting without all these crazy options?
As an example why would you need to force ACPI on your HW?

BR,

Gabriel C.