Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752278AbZJAVDR (ORCPT ); Thu, 1 Oct 2009 17:03:17 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751921AbZJAVDQ (ORCPT ); Thu, 1 Oct 2009 17:03:16 -0400 Received: from mail-ew0-f211.google.com ([209.85.219.211]:41789 "EHLO mail-ew0-f211.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752017AbZJAVDQ (ORCPT ); Thu, 1 Oct 2009 17:03:16 -0400 MIME-Version: 1.0 In-Reply-To: <1254430820.5033.4.camel@localhost.localdomain> References: <1254345112.8837.9.camel@localhost.localdomain> <20091001132012.GA16975@amt.cnet> <1254416336.6787.6.camel@localhost.localdomain> <1254430820.5033.4.camel@localhost.localdomain> Date: Thu, 1 Oct 2009 16:03:19 -0500 Message-ID: <90eb1dc70910011403q31218381tec865b1ecd361eff@mail.gmail.com> Subject: Re: INFO: task kjournal:337 blocked for more than 120 seconds From: Javier Guerra To: Shirley Ma Cc: linux-kernel@vger.kernel.org, Marcelo Tosatti , virtualization@lists.linux-foundation.org, kvm@vger.kernel.org, mcao@us.ibm.com Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 646 Lines: 16 On Thu, Oct 1, 2009 at 4:00 PM, Shirley Ma 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 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/