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From: David Howells <dhowells@redhat.com>
To: Mark Moseley <moseleymark@gmail.com>
Cc: dhowells@redhat.com,
	Linux filesystem caching discussion list 
	<linux-cachefs@redhat.com>,
	linux-kernel@vger.kernel.org
Subject: Re: [Linux-cachefs] 3.0.3 64-bit Crash running fscache/cachefilesd
Date: Wed, 12 Oct 2011 10:26:30 +0100	[thread overview]
Message-ID: <8997.1318411590@redhat.com> (raw)
In-Reply-To: <CAOH1cHkTiitknOsjnu9n7B2Ax+pSgM-EFDFJodjDnamxt3RMCA@mail.gmail.com>

Mark Moseley <moseleymark@gmail.com> wrote:

> >> [37818.485559] kernel BUG at fs/fscache/object-list.c:64!
> >
> > Hmmm...  An object is being added to the object list twice.  It may
> > indicate a free before an object is finished with.  Do you have slab
> > debugging turned on?
>
> It's compiled in but not currently enabled. Should I do so?

It can't be turned on or off dynamically.  If CONFIG_DEBUG_SLAB is enabled, then
it's switched on.

> And anything I should be looking for in it?

The BUG that you encountered would suggest a piece of memory is still in use as
far as parts of fscache is concerned - but it's just been produced by the slab
allocator again.  This is the sort of thing the slab debugger might catch.

David

  reply	other threads:[~2011-10-12  9:27 UTC|newest]

Thread overview: 46+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-08-25 16:44 3.0.3 64-bit Crash running fscache/cachefilesd Mark Moseley
2011-08-26 12:52 ` [Linux-cachefs] " Дмитрий Ильин
2011-09-01 13:04 ` David Howells
2011-09-22 17:03   ` Mark Moseley
2011-09-22 21:41     ` Mark Moseley
2011-09-26 11:32       ` David Howells
2011-09-26 21:02         ` Mark Moseley
2011-09-27  0:59           ` Mark Moseley
2011-09-27 23:46             ` Mark Moseley
2011-09-29 14:57             ` David Howells
2011-09-29 15:51               ` Mark Moseley
2011-09-29 16:30                 ` David Howells
2011-09-29 19:02                   ` Mark Moseley
2011-09-29 22:11                     ` Mark Moseley
2011-09-29 22:44                       ` David Howells
2011-09-29 22:51                         ` Mark Moseley
2011-09-30 12:28                           ` David Howells
2011-09-30 18:57                             ` Mark Moseley
2011-09-30 20:10                               ` David Howells
2011-10-05 13:37                               ` David Howells
2011-10-05 13:49                                 ` David Howells
2011-10-07 10:42                               ` David Howells
2011-10-08 16:32                                 ` Mark Moseley
2011-10-11 13:07                                   ` David Howells
2011-10-11 16:27                                     ` Mark Moseley
2011-10-12  9:26                                       ` David Howells [this message]
2011-10-12 10:05                                       ` David Howells
2011-10-12 18:10                                         ` Mark Moseley
2011-10-12 23:38                                           ` Mark Moseley
2011-10-13 15:21                                             ` David Howells
2011-10-13 20:48                                               ` Mark Moseley
2011-10-14  9:22                                                 ` David Howells
2011-10-14 23:25                                                   ` Mark Moseley
2011-10-17 10:39                                                     ` David Howells
2011-10-19 12:25                                                     ` David Howells
2011-10-19 23:15                                                       ` Mark Moseley
2011-10-20  8:46                                                         ` David Howells
2011-10-20 19:37                                                           ` Mark Moseley
2011-10-20  9:03                                                         ` David Howells
2011-10-20 19:29                                                           ` Mark Moseley
2011-10-20 23:05                                                             ` David Howells
2011-10-21  0:21                                                               ` Mark Moseley
2011-10-21  8:16                                                                 ` David Howells
2011-10-21 18:09                                                                   ` Mark Moseley
2011-12-13  1:56                                                                     ` Mark Moseley
2011-09-29 22:44                       ` Mark Moseley

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