linux-kernel - Re: INFO: task kjournal:337 blocked for more than 120 seconds

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Message-ID: <90eb1dc70910011403q31218381tec865b1ecd361eff@mail.gmail.com>
Date:	Thu, 1 Oct 2009 16:03:19 -0500
From:	Javier Guerra <javier@...rrag.com>
To:	Shirley Ma <mashirle@...ibm.com>
Cc:	linux-kernel@...r.kernel.org,
	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

On Thu, Oct 1, 2009 at 4:00 PM, Shirley Ma <mashirle@...ibm.com> wrote:
> 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.

deadline is the most recommended one for virtualization hosts.  some
distros set it as default if you select Xen or KVM at installation
time.  (and noop for the guests)


-- 
Javier
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