Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755988AbXI1UZE (ORCPT ); Fri, 28 Sep 2007 16:25:04 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752468AbXI1UY4 (ORCPT ); Fri, 28 Sep 2007 16:24:56 -0400 Received: from phunq.net ([64.81.85.152]:53286 "EHLO moonbase.phunq.net" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1750933AbXI1UYz (ORCPT ); Fri, 28 Sep 2007 16:24:55 -0400 From: Daniel Phillips To: Trond Myklebust Subject: Re: A unresponsive file system can hang all I/O in the system on linux-2.6.23-rc6 (dirty_thresh problem?) Date: Fri, 28 Sep 2007 13:24:34 -0700 User-Agent: KMail/1.9.5 Cc: Andrew Morton , Chakri n , linux-pm , lkml , nfs@lists.sourceforge.net, Peter Zijlstra References: <92cbf19b0709272332s25684643odaade0e98cb3a1f4@mail.gmail.com> <20070928122628.965137f2.akpm@linux-foundation.org> <1191009148.6702.46.camel@heimdal.trondhjem.org> In-Reply-To: <1191009148.6702.46.camel@heimdal.trondhjem.org> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200709281324.35160.phillips@phunq.net> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 825 Lines: 21 On Friday 28 September 2007 12:52, Trond Myklebust wrote: > I'm not sure that the hang that is illustrated here is so special. It > is an example of a bog-standard ext3 write, that ends up calling the > NFS client, which is hanging. The fact that it happens to be hanging > on the nfsd process is more or less irrelevant here: the same thing > could happen to any other process in the case where we have an NFS > server that is down. Hi Trond, Could you clarify what you meant by "calling the NFS client"? I don't see any direct call in the posted backtrace. Regards, Daniel - 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/