linux-kernel - Re: 2.6.22-rc6-mm1 -- BUG - EIP: [<c01a77a1>] sysfs_addrm

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Date:	Sat, 07 Jul 2007 15:47:17 +0900
From:	Tejun Heo <htejun@...il.com>
To:	Miles Lane <miles.lane@...il.com>
CC:	Andrew Morton <akpm@...l.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: 2.6.22-rc6-mm1 -- BUG - EIP: [<c01a77a1>] sysfs_addrm_finish+0x1c2/0x226
 SS:ESP 0068:c5ff9db8

(restoring cc to lkml)

Hello, Miles.

Miles Lane wrote:
> With this patch applied, I can't boot at all.  I have attached an OOPS
> screenshot, since I don't have a serial debugging station set up.  I
> am leaving LKML out of the loop, because of the attachment.

Weird, that's unrelated path.  It seems sd->s_parent is NULL in
sysfs_link_sibling(), which doesn't make sense because it's being called
from sysfs_create_link() which makes sure parent_sd isn't NULL &&
sysfs_addrm_start() should have caused oops earlier as it deferences
parent_sd.

Can you please retry the test (test clean 2.6.22-rc6-mm1, apply patch,
rebuild and test)?

Thanks.

-- 
tejun
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