Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751209AbVIOUai (ORCPT ); Thu, 15 Sep 2005 16:30:38 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751200AbVIOUah (ORCPT ); Thu, 15 Sep 2005 16:30:37 -0400 Received: from dsl027-180-168.sfo1.dsl.speakeasy.net ([216.27.180.168]:37813 "EHLO sunset.davemloft.net") by vger.kernel.org with ESMTP id S1751183AbVIOUah convert rfc822-to-8bit (ORCPT ); Thu, 15 Sep 2005 16:30:37 -0400 Date: Thu, 15 Sep 2005 13:30:26 -0700 (PDT) Message-Id: <20050915.133026.21581824.davem@davemloft.net> To: kloczek@rudy.mif.pg.gda.pl Cc: linux-kernel@vger.kernel.org, sparclinux@vger.kernel.org, aurora-sparc-devel@lists.auroralinux.org, davem@redhat.com Subject: Re: [2.6.14-rc1/sparc54]: BUG: soft lockup detected on CPU#0! From: "David S. Miller" In-Reply-To: References: X-Mailer: Mew version 4.2.53 on Emacs 21.4 / Mule 5.0 (SAKAKI) Mime-Version: 1.0 Content-Type: Text/Plain; charset=iso-8859-2 Content-Transfer-Encoding: 8BIT Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1267 Lines: 29 From: Tomasz K?oczko Date: Thu, 15 Sep 2005 19:40:27 +0200 (CEST) > I'm just catch series of kernel messages with soft lockup detected reports > (in attachment). > It occures during store big amout of data on NFS volume. > > As NIC I use now Sun Swift gigabit eth (cassini driver). Probably this is > NFS related because I'm just browse yesterday logs and simillar was also > on Sun Happy Meal. Interesting. Can you reproduce this with SLAB poisioning disabled? That debugging feature is extremely expensive, although it shouldn't make the CPU stop scheduling processes for more than 10 seconds. I wonder if the NFS daemon code needs to have some limits put on how much cpu it consumes handling requests before it gives up the cpu. Perhaps, it has such throttling already, I don't know. I'll also try to see if there can be some kind of sparc64 specific issue which would cause this. Where did you get that Cassini driver btw? It's not upstream, although if it exists it should be. - 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/