From: Nikolay Borisov <kernel@kyup.com>
To: Hannes Frederic Sowa <hannes@stressinduktion.org>
Cc: Nikolay Borisov <kernel@kyup.com>,
mszeredi@redhat.com,
"Linux-Kernel@Vger. Kernel. Org" <linux-kernel@vger.kernel.org>,
netdev@vger.kernel.org
Subject: Re: kernel BUG at net/unix/garbage.c:149!"
Date: Thu, 25 Aug 2016 02:30:11 +0300 [thread overview]
Message-ID: <CAJFSNy6rEpy7JcimW_jiOkgtWtDQgMaQJhcFHvRqgj92HibAvQ@mail.gmail.com> (raw)
In-Reply-To: <9dde3145-9128-ffef-1b84-e3bd429dd4e8@stressinduktion.org>
On Thu, Aug 25, 2016 at 12:40 AM, Hannes Frederic Sowa
<hannes@stressinduktion.org> wrote:
> On 24.08.2016 16:24, Nikolay Borisov wrote:
[SNIP]
>
> One commit which could have to do with that is
>
> commit fc64869c48494a401b1fb627c9ecc4e6c1d74b0d
> Author: Andrey Ryabinin <aryabinin@virtuozzo.com>
> Date: Wed May 18 19:19:27 2016 +0300
>
> net: sock: move ->sk_shutdown out of bitfields.
>
> but that is only a wild guess.
>
> Which unix_sock did you extract specifically in the url you provided? In
> unix_notinflight we are specifically checking an unix domain socket that
> is itself being transferred over another af_unix domain socket and not
> the unix domain socket being released at this point.
So this is the state of the socket that is being passed to
unix_notinflight. I have a complete crashdump so if you need more info
to diagnose it I'm happy to provide it. I'm not too familiar with the
code in question so I will need a bit of time to grasp what actually
is happening.
>
> Can you reproduce this and maybe also with a newer kernel?
Unfortunately I cannot reproduce this since it happened on a
production server nor can I change the kernel. But clearly there is
something wrong, and given that this is a stable kernel and no
relevant changes have gone in latest stable I believe the problem
(albeit hardly reproducible) would still persist.
>
> Thanks for the report,
> Hannes
>
next prev parent reply other threads:[~2016-08-24 23:30 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-08-24 14:24 kernel BUG at net/unix/garbage.c:149!" Nikolay Borisov
2016-08-24 21:40 ` Hannes Frederic Sowa
2016-08-24 23:30 ` Nikolay Borisov [this message]
2016-08-26 20:24 ` Hannes Frederic Sowa
2016-08-27 9:55 ` Miklos Szeredi
2016-08-29 22:37 ` Miklos Szeredi
2016-08-30 9:18 ` Miklos Szeredi
2016-08-30 9:31 ` Nikolay Borisov
2016-08-30 9:39 ` Miklos Szeredi
2016-09-01 9:13 ` Hannes Frederic Sowa
2016-09-27 14:16 ` Nikolay Borisov
2016-09-27 14:43 ` Hannes Frederic Sowa
2016-09-28 2:05 ` David Miller
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