From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Tue, 18 Sep 2001 13:30:21 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Tue, 18 Sep 2001 13:30:12 -0400 Received: from unthought.net ([212.97.129.24]:29401 "HELO mail.unthought.net") by vger.kernel.org with SMTP id ; Tue, 18 Sep 2001 13:30:00 -0400 Date: Tue, 18 Sep 2001 19:30:23 +0200 From: =?iso-8859-1?Q?Jakob_=D8stergaard?= To: linux-kernel@vger.kernel.org Subject: Re: bdflush and postgres stuck in D state Message-ID: <20010918193023.P29908@unthought.net> Mail-Followup-To: =?iso-8859-1?Q?Jakob_=D8stergaard?= , linux-kernel@vger.kernel.org In-Reply-To: <20010918125605.F29908@unthought.net> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit User-Agent: Mutt/1.2i In-Reply-To: <20010918125605.F29908@unthought.net>; from jakob@unthought.net on Tue, Sep 18, 2001 at 12:56:05PM +0200 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Sorry for following up on my own post, I have a little extra information. I started a g++ job to try to force the machine to write out some dirty buffers before I reboot. g++ now hangs along with two sync's, bdflush and the postgres process. This is from top: PID USER PRI NI SIZE RSS SHARE WCHAN STAT %CPU %MEM TIME COMMAN 6 root 9 0 0 0 0 raid1_all DW 0.0 0.0 0:26 bdflush 1140 joe 9 0 71564 39M 0 wait_on_b D 0.0 32.3 1:04 cc1plus 1007 root 9 0 72 4 4 wait_on_b D 0.0 0.0 0:00 sync 10023 postgres 9 0 368 4 4 wait_on_b D 0.0 0.0 0:00 postmas Seems like something's rotten with bdflush and raid1_all (-something). There is one (software) RAID1 on four SCSI disks in the machine, perhaps RAID1 has a misfeature when more than just two disks are in the mirror ? Anyway, this machine is going down now - I can't wait anymore, sorry. I wonder how many file writes didn't make it... -- ................................................................ : jakob@unthought.net : And I see the elder races, : :.........................: putrid forms of man : : Jakob Østergaard : See him rise and claim the earth, : : OZ9ABN : his downfall is at hand. : :.........................:............{Konkhra}...............: