Bug#1037959: BUG: kernel NULL pointer dereference in kthread md2_raid6

From	Timo Weingärtner <timo@tiwe.de>
Newsgroups	linux.debian.bugs.dist, linux.debian.kernel
Subject	Bug#1037959: BUG: kernel NULL pointer dereference in kthread md2_raid6
Date	2023-06-15 09:30 +0200
Message-ID	<GGPAB-g1Go-1@gated-at.bofh.it> (permalink)
References	<GGE2u-fUEh-9@gated-at.bofh.it> <GGFBf-fVqv-5@gated-at.bofh.it> <GGE2u-fUEh-9@gated-at.bofh.it> <GGFBf-fVqv-5@gated-at.bofh.it>
Organization	linux.* mail to news gateway

Cross-posted to 2 groups.

Show all headers | View raw

[Multipart message — attachments visible in raw view] - view raw

Hallo Salvatore Bonaccorso,

14.06.23 22:44 Salvatore Bonaccorso:
> Hi Timo,
> 
> On Wed, Jun 14, 2023 at 10:44:01AM +0200, Timo Weingärtner wrote:
> > Package: src:linux
> > Version: 6.1.27-1
> > Severity: important
> > 
> > Dear Maintainer,
> > 
> > yesterday I upgraded my home server to bookworm. When cutting a
> > recording in vdr (reading a big video file while writing out a big video
> > file and a smaller index file) it triggered a bug in the raid6 kernel
> > thread and the vdr process got stuck in D state.
> > 
> > I could reproduce this by starting the video cutting again after reboot.
> > It doesn't happen with the bullseye kernel 5.10.0-23-amd64 which I'm
> > using now.
> 
> Would you be able to test the newst upstream version from 6.1.y series
> and see if the problem persist? How about 6.3.7-1 or 6.4~rc6-1~exp1?
> 
> Would you be in case as well in the position to try to bisect the
> issue?

Skill-wise I could do git bisects and kernel builds, but I'm currently quite 
low on time and reboot/test alone take >10min each.

If you see a promising change in the code you may point me to a kernel package 
to test.


Grüße
Timo

Back to linux.debian.kernel | Previous | Next — Previous in thread | Find similar | Unroll thread

Thread

Bug#1037959: BUG: kernel NULL pointer dereference in kthread md2_raid6 Salvatore Bonaccorso <carnil@debian.org> - 2023-06-14 22:50 +0200
  Bug#1037959: BUG: kernel NULL pointer dereference in kthread md2_raid6 Timo Weingärtner <timo@tiwe.de> - 2023-06-15 09:30 +0200

csiph-web