Bug#1087602: linux: io_uring deadlock...

From	Salvatore Bonaccorso <carnil@debian.org>
Newsgroups	linux.debian.bugs.dist, linux.debian.kernel
Subject	Bug#1087602: linux: io_uring deadlock...
Date	2024-11-19 15:20 +0100
Message-ID	<JKxfb-a150-1@gated-at.bofh.it> (permalink)
References	<JJccN-9bEA-5@gated-at.bofh.it> <JKxfb-a150-3@gated-at.bofh.it> <JJccN-9bEA-5@gated-at.bofh.it> <JKxfb-a150-3@gated-at.bofh.it>
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Cross-posted to 2 groups.

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Hi,

On Tue, Nov 19, 2024 at 11:50:43AM +0000, Mikko Nahkola (Trivore) wrote:
> Hi,
> 
> This looks a lot similar to what we saw here, on Gitlab runner Docker hosts,
> building various internal things.
> 
> The build jobs would *sometimes* have the containerized runner deadlock on
> io_uring, timeout, and the build fail. Then another build would start a
> fresh container, leaving the old one still hanging. Almost like old-school
> NFS unkillable deadlocks - these too were unable to receive even a SIGKILL,
> and the system "load" numbers gradually increased.
> 
> This only happened on linux-image-6.1.0-27 (Built-Using: linux (=
> 6.1.115-1). No such problem on 6.1.0-26.
> 
> We currently no longer have a runner host on 6.1.0-27.
> 
> Would this be fixed by commit 9e8debb8e51354b201db494689198078ec2c1e75 in
> upstream https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.116 ?

If you are able to easily reproduce the issue, would you be able to
test the test packages at

https://people.debian.org/~carnil/tmp/linux/1086447/

which do rebae to 6.1.118?

Regards,
Salvatore

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Bug#1087602: linux: io_uring deadlock when building chromium (6.1.115 regression) Aurelien Jarno <aurel32@debian.org> - 2024-11-15 22:40 +0100
  Bug#1087602: linux: io_uring deadlock when building chromium (6.1.115 regression) Aurelien Jarno <aurel32@debian.org> - 2024-11-19 06:40 +0100
  Bug#1087602: linux: io_uring deadlock... Salvatore Bonaccorso <carnil@debian.org> - 2024-11-19 15:20 +0100

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