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Date:	Thu, 01 Oct 2009 14:00:20 -0700
From:	Shirley Ma <mashirle@...ibm.com>
To:	linux-kernel@...r.kernel.org
Cc:	Marcelo Tosatti <mtosatti@...hat.com>,
	virtualization@...ts.linux-foundation.org, kvm@...r.kernel.org,
	mcao@...ibm.com
Subject: Re: INFO: task kjournal:337 blocked for more than 120 seconds

I talked to Mingming, she suggested to use different IO scheduler. The
default scheduler is cfg, after I switch to noop, the problem is gone. 

So there seems a bug in cfg scheduler. It's easily reproduced it when
running the guest kernel, so far I haven't hit this problem on the host
side.

If I need to file a bug for some one to look at, please let me know.

Thanks
Shirley

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