linux-kernel - Kernel-3.0.4 stalls while doing fs operations on a large directory

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Date:	Sat, 08 Oct 2011 21:10:15 +0530
From:	Sushant Sinha <sushant354@...il.com>
To:	linux-kernel@...r.kernel.org, neilb@...e.de,
	linux-raid@...r.kernel.org, axboe@...nel.dk, duaneg@...da.com
Subject: Kernel-3.0.4 stalls while doing fs operations on a large directory

I have an ext3 partition and a large directory of roughly 150GB in it.
When I do "du -sh <large-directory>" or a "rsync <large-directory>
<partition-on-diff-disk>" or a "mv <large-directory>
<partition-on-diff-disk>" I find that the kernel hangs. I am using
gento-sources-3.0.4-r2.

As per the suggestions on https://bugs.gentoo.org/show_bug.cgi?id=385047
I recompiled the kernel with debugging support and did a "du -sh .."
I see the following bug on the /var/log/messages

BUG: spinlock bad magic on CPU#2, du/2433

I have attached the full /var/log/messages for your analysis. Let me
know if you want me to do anything else.

Thanks,
Sushant.

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