linux-kernel - Re: 2.6.22-rc4-mm2: GPF during suspend to RAM on HPC nx6325

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Message-ID: <466CF71B.2000907@gmail.com>
Date:	Mon, 11 Jun 2007 16:17:47 +0900
From:	Tejun Heo <htejun@...il.com>
To:	"Rafael J. Wysocki" <rjw@...k.pl>
CC:	Andrew Morton <akpm@...ux-foundation.org>,
	Greg KH <greg@...ah.com>, LKML <linux-kernel@...r.kernel.org>
Subject: Re: 2.6.22-rc4-mm2: GPF during suspend to RAM on HPC nx6325

Hello, Rafael.

Rafael J. Wysocki wrote:
> gregkh-driver-sysfs-use-singly-linked-list-for-sysfs_dirent-tree.patch breaks
> suspend to RAM on HPC nx6325 (x86_64).
> 
> With this patch applied I get a general protection fault in mutex_lock+0x15
> (kernel/mutex.c:91), called by sysfs_hash_and_remove() (fs/sysfs/inode.c:298),
> called by threshold_cpu_callback(), called from _cpu_down().

I'm not sure whether this is bug in sysfs or in sysfs handling code in
mce_amd and I can't test mce_amd here.  Can you please apply the
attached patch and post the resulting dmesg including oops?

Thanks.

-- 
tejun

View attachment "debug.patch" of type "text/x-patch" (1656 bytes)