linux-kernel - Re: [XFS on bad superblock] BUG: unable to handle kernel NULL pointer dereference at 00000003

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Date:	Thu, 10 Oct 2013 11:26:37 +0800
From:	Fengguang Wu <fengguang.wu@...el.com>
To:	Dave Chinner <david@...morbit.com>
Cc:	Dave Chinner <dchinner@...hat.com>, linux-fsdevel@...r.kernel.org,
	Ben Myers <bpm@....com>, linux-kernel@...r.kernel.org,
	xfs@....sgi.com
Subject: Re: [XFS on bad superblock] BUG: unable to handle kernel NULL
 pointer dereference at 00000003

Dave,

> I note that you have CONFIG_SLUB=y, which means that the cache slabs
> are shared with objects of other types. That means that the memory
> corruption problem is likely to be caused by one of the other
> filesystems that is probing the block device(s), not XFS.

Good to know that, it would easy to test then: just turn off every
other filesystems. I'll try it right away.

Thanks,
Fengguang
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