Bug#897893: Strange kernel panics on linux-image-4.9.0-6-amd64 with mlx4_en driver

From	Eugene Budanov <budanov@restream.rt.ru>
Newsgroups	linux.debian.bugs.dist, linux.debian.kernel
Subject	Bug#897893: Strange kernel panics on linux-image-4.9.0-6-amd64 with mlx4_en driver
Date	2018-05-04 16:40 +0200
Message-ID	<vLK2l-u1-3@gated-at.bofh.it> (permalink)
References	<vLIjU-7LB-7@gated-at.bofh.it> <vLJIZ-lX-3@gated-at.bofh.it> <vLIjU-7LB-7@gated-at.bofh.it> <vLJIZ-lX-3@gated-at.bofh.it>
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Hi!

This is only one driver, mpt2sas downloaded from LSI site version 22.00 instead 13.0 from Debian package. Because from beggining we think that is was a problems in RAID controller. But this hypothesis turned out as erroneous. On other machines we use mpt2sas in-kernel driver only. No 3rd party drivers.

---
С уважением,
Буданов Евгений.
Системный администратор
Компания «Рестрим»

On 4 мая 2018 г., 17:08 +0300, Ben Hutchings <ben@decadent.org.uk>, wrote:
> Control: tag -1 moreinfo
>
> On Fri, 2018-05-04 at 15:35 +0300, Eugene Budanov wrote:
> > Package: linux-image-4.9.0-6-amd64
> > Version: 4.9.82-1+deb9u3
> >
> > Hi!
> >
> > Here's a short problem description.
> >
> > We have some Supermicro servers with the same configuration for all
> > machines (hardware, kernels, packages, etc). A month ago, or maybe a
> > bit later, all of these machines began crashing into kernel panic. I
> > can't find any pattern of failure at all. But it happens very often.
> > Some machines may drop into kernel panic a couple times a day! But
> > usually machines crash about every 3 to 6 days. All of these machines
> > have intensive network and i/o operations.
> >
> > I saved dmesg log from one of these machines after the crash (see the
> > attachment).
> >
> > As far as I see, every machine probably has problems with mlx4_en or
> > GRO. Also I see list_add double add => list_del corruption. Can I do
> > anything to get more detailed logs? What additional information do
> > you need for better problem diagnostics?
>
> The WARNING messages show that there are out-of-tree modules (i.e. not
> part of the kernel package) loaded. What are those?
>
> Ben.
>
> --
> Ben Hutchings
> Every program is either trivial or else contains at least one bug
>

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Bug#897893: Strange kernel panics on linux-image-4.9.0-6-amd64 with mlx4_en driver Ben Hutchings <ben@decadent.org.uk> - 2018-05-04 16:20 +0200
  Bug#897893: Strange kernel panics on linux-image-4.9.0-6-amd64 with mlx4_en driver Eugene Budanov <budanov@restream.rt.ru> - 2018-05-04 16:40 +0200

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