Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752708AbYJTOVS (ORCPT ); Mon, 20 Oct 2008 10:21:18 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1750760AbYJTOVI (ORCPT ); Mon, 20 Oct 2008 10:21:08 -0400 Received: from ug-out-1314.google.com ([66.249.92.170]:35441 "EHLO ug-out-1314.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750769AbYJTOVH (ORCPT ); Mon, 20 Oct 2008 10:21:07 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=date:from:to:cc:subject:message-id:references:mime-version :content-type:content-disposition:in-reply-to:user-agent; b=UH/Kxzxd5SFlGxFuEhac8mpfftEcFaooWUw5x0/Jz16+ivyYLZ8GYGg4oWtBuBkD4A 2+6LQ8oX6JVbeW8vKYKaAiW9Y//OAyvyFbphaCZInlviPrmsmY994KHFN8PaIApe/AS9 04VPQPQO8KJqOWG8pthRFuw3QQINcUrEqVZxk= Date: Mon, 20 Oct 2008 18:21:00 +0400 From: Cyrill Gorcunov To: Glauber Costa Cc: Max Kellermann , Glauber Costa , linux-kernel@vger.kernel.org, ijc@hellion.org.uk, Grant Coady , Trond Myklebust , "J. Bruce Fields" , Tom Tucker Subject: Re: [PATCH] NFS regression in 2.6.26?, "task blocked for more than 120 seconds" Message-ID: <20081020142100.GA25166@localhost> References: <20081017123207.GA14979@rabbit.intern.cm-ag> <20081017143301.GA18522@poweredge.glommer> <20081020065149.GA11213@rabbit.intern.cm-ag> <5d6222a80810200615k60d6f523p9bcd71d8cb070a39@mail.gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <5d6222a80810200615k60d6f523p9bcd71d8cb070a39@mail.gmail.com> User-Agent: Mutt/1.5.17+20080114 (2008-01-14) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1646 Lines: 48 [Glauber Costa - Mon, Oct 20, 2008 at 11:15:56AM -0200] | On Mon, Oct 20, 2008 at 4:51 AM, Max Kellermann wrote: | > On 2008/10/17 16:33, Glauber Costa wrote: | >> That's probably something related to apic congestion. | >> Does the problem go away if the only thing you change is this: | >> | >> | >> > @@ -891,11 +897,6 @@ do_rest: | >> > store_NMI_vector(&nmi_high, &nmi_low); | >> > | >> > smpboot_setup_warm_reset_vector(start_ip); | >> > - /* | >> > - * Be paranoid about clearing APIC errors. | >> > - */ | >> > - apic_write(APIC_ESR, 0); | >> > - apic_read(APIC_ESR); | >> > } | >> | >> | >> Please let me know. | > | > Hello Glauber, | > | > I have rebooted the server with 2.6.27.1 + this patchlet an hour ago. | > No problems since. | > | > Hardware: Compaq P4 Xeon server, Broadcom CMIC-WS / CIOB-X2 board. | > Tell me if you need more detailed information. | > | | There's a patch in flight from cyrill that probably fixes your problem: | http://lkml.org/lkml/2008/9/15/93 | | The checks are obviously there for a reason, and we can't just wipe | them out unconditionally ;-) So can you check please that you are also | covered by the case provided? Actually I'll wonder if it help. Do Xeon processors really not have ESR register and not integrated? ... - Cyrill - -- 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/