From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 1C45B7F4E for ; Fri, 19 Jul 2013 16:11:32 -0500 (CDT) Message-ID: <51E9AB80.4000700@sgi.com> Date: Fri, 19 Jul 2013 16:11:28 -0500 From: Mark Tinguely MIME-Version: 1.0 Subject: Re: [Bisected] Corruption of root fs during git bisect of drm system hang References: <20130713090523.GA362@x4> <20130712070721.GA359@x4> <20130715022841.GH5228@dastard> <20130715064734.GA361@x4> <20130719122235.GA360@x4> In-Reply-To: <20130719122235.GA360@x4> List-Id: XFS Filesystem from SGI List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Errors-To: xfs-bounces@oss.sgi.com Sender: xfs-bounces@oss.sgi.com To: Markus Trippelsdorf Cc: Ben Myers , Stan Hoeppner , xfs@oss.sgi.com On 07/19/13 07:22, Markus Trippelsdorf wrote: > > I've bisected this issue to the following commit: > > commit cca9f93a52d2ead50b5da59ca83d5f469ee4be5f > Author: Dave Chinner > Date: Thu Jun 27 16:04:49 2013 +1000 > > xfs: don't do IO when creating an new inode > > Reverting this commit on top of the Linus tree "solves" all problems for > me. IOW I no longer loose my KDE and LibreOffice config files during a > crash. Log recovery now works fine and xfs_repair shows no issues. > > So users of 3.11.0-rc1 beware. Only run this version if you have > up-to-date backups handy. > I reviewed the above patch and liked it but, I think I recreated the above mentioned problem with a simple script: cp /root/.bash_history /root/.lesshst /root/.pwclientrc /root/.viminfo /root/.bash_profile /root/.lesshst.YCJCDz /root/.quiltrc /somexfsdir sync echo 'c' > /proc/sysrq-trigger .... reboot, remount ... cd /somexfsdir # ls -la ls: cannot access .bash_history: No such file or directory ls: cannot access .lesshst: No such file or directory ls: cannot access .pwclientrc: No such file or directory ls: cannot access .viminfo: No such file or directory ls: cannot access .bash_profile: No such file or directory ls: cannot access .lesshst.YCJCDz: No such file or directory ls: cannot access .quiltrc: No such file or directory total 4 drwxr-xr-x 2 root root 131 Jul 19 15:32 . drwxr-xr-x 28 root root 4096 Jul 19 15:35 .. ?????????? ? ? ? ? ? .bash_history ?????????? ? ? ? ? ? .bash_profile ?????????? ? ? ? ? ? .lesshst ?????????? ? ? ? ? ? .lesshst.YCJCDz ?????????? ? ? ? ? ? .pwclientrc ?????????? ? ? ? ? ? .quiltrc ?????????? ? ? ? ? ? .viminfo # cat .bash_history cat: .bash_history: No such file or directory xfs_db> inode 131 xfs_db> p core.magic = 0x494e core.mode = 0 core.version = 2 core.format = 2 (extents) core.nlinkv2 = 0 core.onlink = 0 core.projid_lo = 0 core.projid_hi = 0 core.uid = 0 core.gid = 0 core.flushiter = 1 core.atime.sec = Fri Jul 19 15:26:13 2013 core.atime.nsec = 990813003 core.mtime.sec = Fri Jul 19 15:26:13 2013 core.mtime.nsec = 990813003 core.ctime.sec = Fri Jul 19 15:30:34 2013 core.ctime.nsec = 822788719 core.size = 0 core.nblocks = 0 core.extsize = 0 core.nextents = 0 core.naextents = 0 core.forkoff = 0 core.aformat = 2 (extents) core.dmevmask = 0 core.dmstate = 0 core.newrtbm = 0 core.prealloc = 0 core.realtime = 0 core.immutable = 0 core.append = 0 core.sync = 0 core.noatime = 0 core.nodump = 0 core.rtinherit = 0 core.projinherit = 0 core.nosymlinks = 0 core.extsz = 0 core.extszinherit = 0 core.nodefrag = 0 core.filestream = 0 core.gen = 3707503345 next_unlinked = null u = (empty) revert the above commit and the problem goes away. Output: The files are small files that I could find on the test box: -rw------- 1 root root 28158 Jul 19 15:47 .bash_history -rw-r--r-- 1 root root 43 Jul 19 15:47 .bash_profile -rw------- 1 root root 1046 Jul 19 15:47 .lesshst -rw------- 1 root root 919 Jul 19 15:47 .lesshst.YCJCDz -rw-r--r-- 1 root root 344 Jul 19 15:47 .pwclientrc -rw-r--r-- 1 root root 2502 Jul 19 15:47 .quiltrc -rw------- 1 root root 21895 Jul 19 15:47 .viminfo And they diff the same as the originals. core.magic = 0x494e core.mode = 0100600 core.version = 2 core.format = 2 (extents) core.nlinkv2 = 1 core.onlink = 0 core.projid_lo = 0 core.projid_hi = 0 core.uid = 0 core.gid = 0 core.flushiter = 1 core.atime.sec = Fri Jul 19 15:56:04 2013 core.atime.nsec = 954825196 core.mtime.sec = Fri Jul 19 15:47:18 2013 core.mtime.nsec = 366686434 core.ctime.sec = Fri Jul 19 15:47:18 2013 core.ctime.nsec = 366686434 core.size = 28158 core.nblocks = 7 core.extsize = 0 core.nextents = 1 core.naextents = 0 core.forkoff = 0 core.aformat = 2 (extents) core.dmevmask = 0 core.dmstate = 0 core.newrtbm = 0 core.prealloc = 0 core.realtime = 0 core.immutable = 0 core.append = 0 core.sync = 0 core.noatime = 0 core.nodump = 0 core.rtinherit = 0 core.projinherit = 0 core.nosymlinks = 0 core.extsz = 0 core.extszinherit = 0 core.nodefrag = 0 core.filestream = 0 core.gen = 0 next_unlinked = null u.bmx[0] = [startoff,startblock,blockcount,extentflag] 0:[0,12,7,0] _______________________________________________ xfs mailing list xfs@oss.sgi.com http://oss.sgi.com/mailman/listinfo/xfs