From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: with ECARTIS (v1.0.0; list xfs); Sun, 29 Jun 2008 20:37:05 -0700 (PDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.168.29]) by oss.sgi.com (8.12.11.20060308/8.12.11/SuSE Linux 0.7) with ESMTP id m5U3auqT001257 for ; Sun, 29 Jun 2008 20:36:58 -0700 Received: from bby1mta03.pmc-sierra.bc.ca (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 9B03829B7ED for ; Sun, 29 Jun 2008 20:37:58 -0700 (PDT) Received: from bby1mta03.pmc-sierra.bc.ca (bby1mta03.pmc-sierra.com [216.241.235.118]) by cuda.sgi.com with ESMTP id MqF89RLH4OzD7hGH for ; Sun, 29 Jun 2008 20:37:58 -0700 (PDT) Received: from bby1mta03.pmc-sierra.bc.ca (localhost.pmc-sierra.bc.ca [127.0.0.1]) by localhost (Postfix) with SMTP id A1AB61070587 for ; Sun, 29 Jun 2008 20:40:26 -0700 (PDT) Received: from bby1exg02.pmc_nt.nt.pmc-sierra.bc.ca (BBY1EXG02.pmc-sierra.bc.ca [216.241.231.167]) by bby1mta03.pmc-sierra.bc.ca (Postfix) with SMTP id 2F5231070591 for ; Sun, 29 Jun 2008 20:40:24 -0700 (PDT) Message-ID: <48685510.6060603@pmc-sierra.com> Date: Mon, 30 Jun 2008 09:07:52 +0530 From: Sagar Borikar MIME-Version: 1.0 Subject: Re: Xfs Access to block zero exception and system crash References: <340C71CD25A7EB49BFA81AE8C839266701323BD8@BBY1EXM10.pmc_nt.nt.pmc-sierra.bc.ca> <20080625084931.GI16257@build-svl-1.agami.com> <340C71CD25A7EB49BFA81AE8C839266701323BE8@BBY1EXM10.pmc_nt.nt.pmc-sierra.bc.ca> <20080626070215.GI11558@disturbed> <4864BD5D.1050202@pmc-sierra.com> <4864C001.2010308@pmc-sierra.com> <20080628000516.GD29319@disturbed> <340C71CD25A7EB49BFA81AE8C8392667028A1CA7@BBY1EXM10.pmc_nt.nt.pmc-sierra.bc.ca> <20080629215647.GJ29319@disturbed> In-Reply-To: <20080629215647.GJ29319@disturbed> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: xfs-bounce@oss.sgi.com Errors-to: xfs-bounce@oss.sgi.com List-Id: xfs To: xfs@oss.sgi.com Dave Chinner wrote: > On Sat, Jun 28, 2008 at 09:47:44AM -0700, Sagar Borikar wrote: > > Device Boot Start End Blocks Id System >> /dev/scsibd1 126 286 20608 83 Linux >> /dev/scsibd2 287 1023 94336 83 Linux >> /dev/scsibd3 1149 1309 20608 83 Linux >> /dev/scsibd4 1310 2046 94336 83 Linux >> > > I'd have to assume thats a flash based root drive, right? > > That's right, >> Disk /dev/md0: 251.0 GB, 251000160256 bytes >> 2 heads, 4 sectors/track, 61279336 cylinders >> Units = cylinders of 8 * 512 = 4096 bytes >> >> Disk /dev/md0 doesn't contain a valid partition table >> >> Disk /dev/dm-0: 107.3 GB, 107374182400 bytes >> 255 heads, 63 sectors/track, 13054 cylinders >> Units = cylinders of 16065 * 512 = 8225280 bytes >> > > Neither of these tell me what /dev/RAIDA/vol is.... > It is the device node to which /mnt/RAIDA/vol is mapped to. Its a JBOD with 233 GB size. > >> But still the issue is why doesn't it happen every time and less stress? >> >> I am surprised to see to let this happen immediately when the >> subdirectories increase more than 30. Else it decays slowly. >> > > So it happens when you get more than 30 entries in a directory > under a certain load? That might be an extent->btree format > conversion bug or vice versa. I'd suggest setting up a test based > around this to try to narrow down the problem. > > Cheers, > > Dave. > Thanks for all your help. Shall keep you posted with the progress on debugging. Regards Sagar