From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id q55FLb12096467 for ; Tue, 5 Jun 2012 10:21:37 -0500 Received: from sam.nabble.com (sam.nabble.com [216.139.236.26]) by cuda.sgi.com with ESMTP id 7AQKaE9LGlIy4A5j (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Tue, 05 Jun 2012 08:21:35 -0700 (PDT) Received: from telerig.nabble.com ([192.168.236.162]) by sam.nabble.com with esmtp (Exim 4.72) (envelope-from ) id 1SbvZe-0007Gy-Ah for xfs@oss.sgi.com; Tue, 05 Jun 2012 08:21:34 -0700 Message-ID: <33964752.post@talk.nabble.com> Date: Tue, 5 Jun 2012 08:21:34 -0700 (PDT) From: Chris J Arges Subject: Re: Still seeing hangs in xlog_grant_log_space In-Reply-To: MIME-Version: 1.0 References: List-Id: XFS Filesystem from SGI List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: xfs-bounces@oss.sgi.com Errors-To: xfs-bounces@oss.sgi.com To: xfs@oss.sgi.com Peter Watkins-3 wrote: > > Does your kernel have the effect of > > 0bf6a5bd4b55b466964ead6fa566d8f346a828ee xfs: convert the xfsaild > thread to a workqueue > This patch is present in the Ubuntu Precise 3.2 kernel, and I have been able to reproduce the failure with this patch applied. Peter Watkins-3 wrote: > > c7eead1e118fb7e34ee8f5063c3c090c054c3820 xfs: revert to using a > kthread for AIL pushing > I see this patch is 0030807c66f058230bcb20d2573bcaf28852e804 upstream, and this patch is also present in the 3.2 Precise kernel that was tested and exhibited the failure. Peter Watkins-3 wrote: > > In particular, is this code in xfs_trans_ail_push: > > smp_wmb(); > xfs_trans_ail_copy_lsn(ailp, &ailp->xa_target, &threshold_lsn); > smp_wmb(); > In fs/xfs/xfs_trans_ail.c:xfs_ail_push(): /* * Ensure that the new target is noticed in push code before it clears * the XFS_AIL_PUSHING_BIT. */ smp_wmb(); xfs_trans_ail_copy_lsn(ailp, &ailp->xa_target, &threshold_lsn); smp_wmb(); _______________________________________________ xfs mailing list xfs@oss.sgi.com http://oss.sgi.com/mailman/listinfo/xfs -- View this message in context: http://old.nabble.com/Still-seeing-hangs-in-xlog_grant_log_space-tp33732886p33964752.html Sent from the Xfs - General mailing list archive at Nabble.com. _______________________________________________ xfs mailing list xfs@oss.sgi.com http://oss.sgi.com/mailman/listinfo/xfs