Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S966101AbXHaSgV (ORCPT ); Fri, 31 Aug 2007 14:36:21 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S965734AbXHaSgI (ORCPT ); Fri, 31 Aug 2007 14:36:08 -0400 Received: from empbedex1.empirix.com ([12.38.203.54]:13781 "EHLO empbedex1.empirix.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S965619AbXHaSgG convert rfc822-to-8bit (ORCPT ); Fri, 31 Aug 2007 14:36:06 -0400 X-MimeOLE: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 8BIT Subject: Follow up to: NFS/RPC Hangs after updating time... Date: Fri, 31 Aug 2007 14:35:19 -0400 Message-ID: In-Reply-To: <20070822202639.GL20946@fieldses.org> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: Follow up to: NFS/RPC Hangs after updating time... Thread-Index: Acfk+tMISbPbALZYTfi+nRzPwHiwEgHAjsNA References: <20070822202639.GL20946@fieldses.org> From: "Morrison, Tom" To: "J. Bruce Fields" Cc: , X-OriginalArrivalTime: 31 Aug 2007 18:36:03.0540 (UTC) FILETIME=[C908D140:01C7EBFD] Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2073 Lines: 61 This is a follow-up... After a huge pain in the rear upgrading from a 2.6.11++ to a 2.6.23-rc3 (I'll give the powerpc folks a 'piece' of my mind on that front) - the NFS hang problem that I was experiencing on the older kernel is NOT occurring on this new version. Now what do I do? Is the net/sunrpc net/nfsx pieces isolated enough from the rest of the kernel that I could fork-lift it back to the 2.6.11 (or is that really a lost cause). Thanks for any/all feedback on this front! -----Original Message----- From: J. Bruce Fields [mailto:bfields@fieldses.org] Sent: Wednesday, August 22, 2007 4:27 PM To: Morrison, Tom Cc: nfs@lists.sourceforge.net; linux-kernel@vger.kernel.org; Rushton, Matt Subject: Re: NFS/RPC Hangs after updating time... On Wed, Aug 22, 2007 at 02:37:22PM -0400, Morrison, Tom wrote: > I am working with a 2.6.11++ kernel on an embedded > server platform that is NFS serving Linux rootfs > for other embedded NFS Client boards. > > Everything works fine when the system time on the > server board is relatively synchronized with the real-time. > > It hangs after attempting to update the time from a > nonsensical time (e.g.: 2 months ago) - the most significant > part of it is that it only hangs IFF it has started > serving its NFS client boards before I attempt to > update the time. > > > The most significant output (when turning on > RPC debugging) is from: > > linux/net/sunrpc/cache.c (cache_check) - line 90: > > >> Want update, refage=1800, age=4288285 > > It continually loops through this method - and the cache > never gets updated...even thought with some additional > sleuthing (aka: additional debug printks - it thinks > that there is an cache update pending). Can you reproduce the problem with the current kernel? (Say 2.6.22 or later?) --b. - 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/