From: Theodore Tso Subject: Re: [PATCH v3]Ext4: journal credits reservation fixes for DIO, fallocate and delalloc writepages Date: Fri, 1 Aug 2008 15:29:47 -0400 Message-ID: <20080801192947.GA8789@mit.edu> References: <48841077.500@cse.unsw.edu.au> <20080721082010.GC8788@skywalker> <1216774311.6505.4.camel@mingming-laptop> <20080723074226.GA15091@skywalker> <1217032947.6394.2.camel@mingming-laptop> <1217383118.27664.14.camel@mingming-laptop> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: Shehjar Tikoo , linux-ext4@vger.kernel.org, "Aneesh Kumar K.V" , Andreas Dilger To: Mingming Cao Return-path: Received: from www.church-of-our-saviour.org ([69.25.196.31]:56604 "EHLO thunker.thunk.org" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1753126AbYHAT3y (ORCPT ); Fri, 1 Aug 2008 15:29:54 -0400 Content-Disposition: inline In-Reply-To: <1217383118.27664.14.camel@mingming-laptop> Sender: linux-ext4-owner@vger.kernel.org List-ID: I'm noticing that when I reboot, presumably either just before or just after remounting the filesystem read-only, I'm getting a whole series of ext4_da_writepages: Not enough credits to flush N pages .. where N is mostly 1, but occasionally will be 2. I'm not sure why this is happening; I did run sync before rebooting, and I haven't noticed any files written just before the reboot getting corrupted, but there is something strange happening here. - Ted