Bug#1098261: linux: kernel panic on boot with certain large NVME configurations

From	Noah Meyerhans <noahm@debian.org>
Newsgroups	linux.debian.bugs.dist, linux.debian.kernel
Subject	Bug#1098261: linux: kernel panic on boot with certain large NVME configurations
Date	2025-02-19 15:00 +0100
Message-ID	<KhSMh-nBH-5@gated-at.bofh.it> (permalink)
References	(1 earlier) <KhwC5-9sK-15@gated-at.bofh.it> <Khxot-9ZG-7@gated-at.bofh.it> <KhyDT-aIt-7@gated-at.bofh.it> <KhvZn-8YF-3@gated-at.bofh.it> <KhyDT-aIt-7@gated-at.bofh.it>
Organization	linux.* mail to news gateway

Cross-posted to 2 groups.

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On Tue, Feb 18, 2025 at 05:23:52PM +0100, Salvatore Bonaccorso wrote:
> > > > Microsoft has observed that the 5.10.y kernels in bullseye are susceptible
> > > > to crashes due to race conditions in the NVME/PCI subsystem.  See below for
> > > > a representative kernel log.  The problem appears most frequently in larger
> > > > systems, e.g. with 4 or more NVME devices and >= 64 CPUs, but it could
> > > > potentially occur on smaller systems as well.
> > > > 
> > > > The issue was fixed with the 5.14 kernel upstream in e4b9852a0 ("nvme-pci:
> > > > fix multiple races in nvme_setup_io_queues"), so this only impacts
> > > > oldstable.  I have provided a backport of this commit upstream in
> > > > https://lore.kernel.org/stable/E1tj8vO-00471h-2H@lore/
> > > > 
> > > > I'm requesting that this commit be included in a bullseye kernel update.
> > > 
> > > AFAICS, this backport has not been accepted back then for 5.10.y. Can
> > > you re-ping upstream to make sure it get included in the 5.10.y
> > > series? Once this has happened as we follow the 5.10.y series it will
> > > be included (or can be included in advance once it has been queued).
> > 
> > Yes, I forgot to reset the date on the commit that I sent upstream,
> > which is why it looks like it's been around since 2021.  I requested
> > that upstream apply the fix to 5.10.y last week, and will ping them in
> > another week or two if it hasn't been acknowledged either way...
> 
> Noah, thanks!

This has now been queued for acceptance upstream.

noah

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Thread

Bug#1098261: linux: kernel panic on boot with certain large NVME configurations Noah Meyerhans <noahm@debian.org> - 2025-02-18 14:40 +0100
  Bug#1098261: linux: kernel panic on boot with certain large NVME configurations Salvatore Bonaccorso <carnil@debian.org> - 2025-02-18 15:20 +0100
    Bug#1098261: linux: kernel panic on boot with certain large NVME configurations Noah Meyerhans <noahm@debian.org> - 2025-02-18 16:10 +0100
      Bug#1098261: linux: kernel panic on boot with certain large NVME configurations Salvatore Bonaccorso <carnil@debian.org> - 2025-02-18 17:30 +0100
        Bug#1098261: linux: kernel panic on boot with certain large NVME configurations Noah Meyerhans <noahm@debian.org> - 2025-02-19 15:00 +0100

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