From: Jens Axboe <jens.axboe@oracle.com>
To: Ingo Molnar <mingo@elte.hu>
Cc: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>,
Linus Torvalds <torvalds@linux-foundation.org>,
Eric Paris <eparis@redhat.com>,
Pekka Enberg <penberg@cs.helsinki.fi>,
James Morris <jmorris@namei.org>, Thomas Liu <tliu@redhat.com>,
linux-kernel@vger.kernel.org
Subject: Re: [origin tree SLAB corruption #2] BUG kmalloc-64: Poison overwritten, INFO: Allocated in bdi_alloc_work+0x2b/0x100 age=175 cpu=1 pid=3514
Date: Tue, 15 Sep 2009 09:51:00 +0200 [thread overview]
Message-ID: <20090915075100.GB23126@kernel.dk> (raw)
In-Reply-To: <20090915074802.GA21895@elte.hu>
On Tue, Sep 15 2009, Ingo Molnar wrote:
>
> * Ingo Molnar <mingo@elte.hu> wrote:
>
> > > trying to pull in:
> > >
> > > git://git.kernel.dk/linux-2.6-block.git writeback
> > >
> > > and see if it reproduces there? That path has been cleaned up
> > > considerably there.
> >
> > I gave it a test-pull - and the bug does not trigger anymore.
> >
> > Note, that may not mean much: your tree is based on a fresh upstream
> > tree so it pulled a lot of new stuff into -tip that i have yet to
> > test/validate. It also changed the kernel image size/layout
> > considerably and this bug seems to be a very narrow to hit race of
> > sorts.
>
> Btw., is there anything in your cleanups that could explain this bug?
> Some list handling bug? A double free? Uninitialized memory? Race
> between block IRQs and process context?
No that that I noticed, it was just a thought since that path has been
cleaned up and I have been looking at the newer tree only. I'll take a
good look at the current -git situation.
--
Jens Axboe
prev parent reply other threads:[~2009-09-15 7:51 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-09-04 17:08 [PATCH] IMA: update ima_counts_put Mimi Zohar
2009-09-06 21:59 ` Eric Paris
2009-09-07 2:17 ` [GIT] IMA regression fix James Morris
2009-09-12 7:24 ` [origin tree boot crash] Revert "selinux: clean up avc node cache when disabling selinux" Ingo Molnar
2009-09-12 7:58 ` [origin tree boot crash #2] kernel BUG at kernel/cred.c:855! Ingo Molnar
2009-09-12 8:19 ` Ingo Molnar
2009-09-12 8:40 ` [PATCH] out-of-tree: Whack warning off in kernel/cred.c Ingo Molnar
2009-09-12 9:58 ` [origin tree boot crash #2] kernel BUG at kernel/cred.c:855! Eric Paris
2009-09-12 9:46 ` [origin tree boot crash] Revert "selinux: clean up avc node cache when disabling selinux" Eric Paris
2009-09-12 10:43 ` Ingo Molnar
2009-09-12 13:58 ` [origin tree boot hang] lockup in key_schedule_gc() Ingo Molnar
2009-09-12 20:27 ` Eric Paris
2009-09-14 6:15 ` Ingo Molnar
2009-09-14 14:38 ` David Howells
2009-09-13 2:28 ` [origin tree boot crash] Revert "selinux: clean up avc node cache when disabling selinux" Eric Paris
2009-09-13 23:03 ` Eric Paris
2009-09-14 7:16 ` [origin tree SLAB corruption] BUG kmalloc-64: Poison overwritten, INFO: Allocated in bdi_alloc_work+0x2b/0x100 age=175 cpu=1 pid=3514 Ingo Molnar
2009-09-14 7:57 ` Pekka Enberg
2009-09-14 9:20 ` Jens Axboe
2009-09-14 9:23 ` Pekka Enberg
2009-09-14 14:40 ` Linus Torvalds
2009-09-14 16:29 ` Paul E. McKenney
2009-09-14 17:10 ` Jens Axboe
2009-09-15 6:57 ` Ingo Molnar
2009-09-15 7:00 ` Jens Axboe
2009-09-15 7:11 ` [origin tree SLAB corruption #2] " Ingo Molnar
2009-09-15 7:24 ` Jens Axboe
2009-09-15 7:44 ` Ingo Molnar
2009-09-15 7:48 ` Ingo Molnar
2009-09-15 7:51 ` Jens Axboe [this message]
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