linux-kernel - Re: [origin tree boot failure] Re: [GIT PULL] core block bits for 2.6.37-rc1

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Date:	Sat, 23 Oct 2010 08:42:37 -0700
From:	Linus Torvalds <torvalds@...ux-foundation.org>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	Jens Axboe <jaxboe@...ionio.com>, Tejun Heo <tj@...nel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [origin tree boot failure] Re: [GIT PULL] core block bits for 2.6.37-rc1

On Sat, Oct 23, 2010 at 8:29 AM, Ingo Molnar <mingo@...e.hu> wrote:
>
> [  116.080274]
> [  116.080274] Pid: 1, comm: swapper Tainted: G        W   2.6.36-tip-03555-g825d9ec-dirty #51843 A8N-E/System Product Name
> [  116.080274] RIP: 0010:[<ffffffff81064380>]  [<ffffffff81064380>] __ticket_spin_trylock+0x4/0x21
> [  116.080274] RSP: 0018:ffff88003c417c10  EFLAGS: 00010082
> [  116.080274] RAX: ffff88003c418000 RBX: 6b6b6b6b6b6b6b6a RCX: 0000000000000000
> [  116.080274] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 6b6b6b6b6b6b6b6a
> [  116.080274] RBP: ffff88003c417c10 R08: 0000000000000002 R09: 0000000000000001
> [  116.080274] R10: 0000000000000286 R11: ffff880032498738 R12: 6b6b6b6b6b6b6b82

And we obviously have that "6b" pattern for a use-after free with slab
poisoning. Jens, have you tried with slab debugging?

                    Linus
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