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 o24A9Cc0158306 for ; Thu, 4 Mar 2010 04:09:12 -0600 Received: from firestarter.dermichi.com (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id A839913F39CF for ; Thu, 4 Mar 2010 02:10:38 -0800 (PST) Received: from firestarter.dermichi.com (firestarter.dermichi.com [78.41.115.230]) by cuda.sgi.com with ESMTP id HdfvpB2JqNtSb80t for ; Thu, 04 Mar 2010 02:10:38 -0800 (PST) Received: from cl-840.mbx-01.si.sixxs.net ([2001:15c0:65ff:347::2]) by firestarter.dermichi.com with esmtpsa (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1Nn80q-0002So-Kn for xfs@oss.sgi.com; Thu, 04 Mar 2010 11:10:36 +0100 Message-ID: <4B8F871C.60802@dermichi.com> Date: Thu, 04 Mar 2010 11:10:36 +0100 From: Michael Weissenbacher MIME-Version: 1.0 Subject: XFS hang during xfs_fsr run 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" Sender: xfs-bounces@oss.sgi.com Errors-To: xfs-bounces@oss.sgi.com To: xfs@oss.sgi.com Hi XFS-List! We recently had two hangs on one of our servers, which seem to be related to XFS. We managed to capture the dmesg output before hard-resetting the machine. It seems that those hangs are caused by xfs_fsr which was running at that time. This is a mail server with millions of files. The underlying file system was already checked with xfs_repair without finding errors. Is there anything i could try to rectify or at least narrow down this problem? ******** Trace 1 start ******** [169342.414517] BUG: unable to handle kernel NULL pointer dereference at 0000000000000018 [169342.414646] IP: [] 0xffffffff811abd75 [169342.414651] PGD 26fba0067 PUD 2935aa067 PMD 0 [169342.414655] Oops: 0000 [#1] SMP [169342.414658] last sysfs file: /sys/devices/pci0000:00/0000:00:02.0/0000:06:00.0/0000:07:00.0/0000:08:00.0/0000:09:00.0/irq [169342.414663] CPU 2 [169342.414668] Pid: 23782, comm: xfs_fsr Not tainted 2.6.33 #1 0JR815/PowerEdge 2950 [169342.414671] RIP: 0010:[] [] 0xffffffff811abd75 [169342.414675] RSP: 0018:ffff88001eb2db78 EFLAGS: 00010296 [169342.414678] RAX: 0000000000000008 RBX: ffff880044c46bc0 RCX: ffff88001eb2dd54 [169342.414681] RDX: 0000000000000005 RSI: 0000000000000000 RDI: ffff880044c46bc0 [169342.414684] RBP: ffff88001eb2dba8 R08: 0000000000000000 R09: ffff88032fb3ec00 [169342.414687] R10: ffff88001eb2d9e8 R11: ffffffff811eebc1 R12: ffff88008d17a400 [169342.414690] R13: 0000000000000005 R14: 0000000000000000 R15: ffff88008d17a438 [169342.414694] FS: 00007f760bcd66f0(0000) GS:ffff880028280000(0000) knlGS:0000000000000000 [169342.414697] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [169342.414700] CR2: 0000000000000018 CR3: 000000029347c000 CR4: 00000000000006e0 [169342.414703] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [169342.414706] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 [169342.414709] Process xfs_fsr (pid: 23782, threadinfo ffff88001eb2c000, task ffff88032de43cc0) [169342.414711] Stack: [169342.414713] ffff88001eb2dba8 ffffffff811abc98 ffff88008d17a400 0000000000000000 [169342.414717] <0> ffff88008d17a400 ffffffffffffffff ffff88001eb2dce8 ffffffff8117ec2c [169342.414721] <0> ffff88001eb2dca8 0000000000000000 ffff880100000000 ffff880300000000 [169342.414726] Call Trace: [169342.414731] [] ? 0xffffffff811abc98 [169342.414734] [] 0xffffffff8117ec2c [169342.414738] [] 0xffffffff81198b2b [169342.414741] [] 0xffffffff811af419 [169342.414743] [] ? 0xffffffff813629e8 [169342.414746] [] 0xffffffff811b976e [169342.414749] [] 0xffffffff810dd9ea [169342.414751] [] 0xffffffff810de158 [169342.414754] [] 0xffffffff810de1e4 [169342.414757] [] 0xffffffff810dd22e [169342.414759] [] 0xffffffff810da685 [169342.414762] [] 0xffffffff810da76f [169342.414765] [] 0xffffffff810daebf [169342.414767] [] 0xffffffff810cc1b6 [169342.414770] [] 0xffffffff810cc1f3 [169342.414773] [] 0xffffffff810c9396 [169342.414775] [] 0xffffffff810c943a [169342.414778] [] 0xffffffff810029ab [169342.414780] Code: 89 c4 85 c0 75 13 48 85 db 74 0e 44 89 ea 49 8b 36 48 89 df e8 5f ff ff ff 5a 44 89 e0 59 5b 41 5c 41 5d 41 5e c9 c3 90 90 90 55 <48> 8b 46 18 48 89 e5 c9 c3 55 31 ff 8a 56 0b 48 89 e5 0f b6 c2 [169342.414805] RIP [] 0xffffffff811abd75 [169342.414808] RSP [169342.414810] CR2: 0000000000000018 [169342.414813] ---[ end trace 5e5d73a1b2a79389 ]--- [169434.738237] ------------[ cut here ]------------ [169434.738315] kernel BUG at fs/xfs/xfs_iget.c:295! [169434.738387] invalid opcode: 0000 [#2] SMP [169434.738553] last sysfs file: /sys/devices/system/cpu/cpu3/cache/index2/shared_cpu_map [169434.738644] CPU 2 [169434.738761] Pid: 23899, comm: mktemp Tainted: G D 2.6.33 #1 0JR815/PowerEdge 2950 [169434.738854] RIP: 0010:[] [] 0xffffffff81196309 [169434.738994] RSP: 0018:ffff88014ac5da18 EFLAGS: 00010246 [169434.739068] RAX: 0000000000000000 RBX: ffff880044c46260 RCX: ffffffff811f2d94 [169434.739127] RDX: 0000000000000000 RSI: 0000000000000202 RDI: ffff88008d17a4e4 [169434.739127] RBP: ffff88014ac5dab8 R08: ffff88002828fe10 R09: ffff88014ac5d8e8 [169434.739127] R10: ffff88014ac5d948 R11: ffff88008d17a458 R12: ffff88008d17a458 [169434.739127] R13: 0000000000000002 R14: ffff88032dac6ba8 R15: 0000000000000017 [169434.739127] FS: 00007fc88a5266f0(0000) GS:ffff880028280000(0000) knlGS:0000000000000000 [169434.739127] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 ******** Trace 1 end ******** ******** Trace 2 start ******** [40146.682000] BUG: unable to handle kernel NULL pointer dereference at 0000000000000018 [40146.682192] IP: [] 0xffffffff811abd75 [40146.682314] PGD 236381067 PUD 2883d3067 PMD 0 [40146.682528] Oops: 0000 [#1] SMP [40146.682692] last sysfs file: /sys/devices/system/cpu/cpu3/cache/index2/shared_cpu_map [40146.682784] CPU 3 [40146.682901] Pid: 19417, comm: xfs_fsr Not tainted 2.6.33 #1 0JR815/PowerEdge 2950 [40146.682901] RIP: 0010:[] [] 0xffffffff811abd75 [40146.682901] RSP: 0018:ffff88025c721b78 EFLAGS: 00010296 [40146.682901] RAX: 0000000000000008 RBX: ffff8802686d4320 RCX: ffff88025c721d54 [40146.682901] RDX: 0000000000000005 RSI: 0000000000000000 RDI: ffff8802686d4320 [40146.682901] RBP: ffff88025c721ba8 R08: 000000000000007c R09: ffff88032fb1ac00 [40146.682901] R10: ffff88025c721a28 R11: 0000000000000296 R12: ffff88022ac2c400 [40146.682901] R13: 0000000000000005 R14: 0000000000000000 R15: ffff88022ac2c438 [40146.682901] FS: 00007f5a735786f0(0000) GS:ffff8800282c0000(0000) knlGS:0000000000000000 [40146.682901] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [40146.682901] CR2: 0000000000000018 CR3: 000000029b82e000 CR4: 00000000000006e0 [40146.682901] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [40146.682901] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 [40146.682901] Process xfs_fsr (pid: 19417, threadinfo ffff88025c720000, task ffff88032d2b0000) [40146.682901] Stack: [40146.682901] ffff88025c721ba8 ffffffff811abc98 ffff88022ac2c400 0000000000000000 [40146.682901] <0> ffff88022ac2c400 ffffffffffffffff ffff88025c721ce8 ffffffff8117ec2c [40146.682901] <0> ffff88025c721ca8 0000000000000000 ffff880200000000 0000000700000000 [40146.682901] Call Trace: [40146.682901] [] ? 0xffffffff811abc98 [40146.682901] [] 0xffffffff8117ec2c [40146.682901] [] 0xffffffff81198b2b [40146.682901] [] 0xffffffff811af419 [40146.682901] [] ? 0xffffffff813629e8 [40146.682901] [] 0xffffffff811b976e [40146.682901] [] 0xffffffff810dd9ea [40146.682901] [] 0xffffffff810de158 [40146.682901] [] 0xffffffff810de1e4 [40146.682901] [] 0xffffffff810dd22e [40146.682901] [] 0xffffffff810da685 [40146.682901] [] 0xffffffff810da76f [40146.682901] [] 0xffffffff810daebf [40146.682901] [] 0xffffffff810cc1b6 [40146.682901] [] 0xffffffff810cc1f3 [40146.682901] [] 0xffffffff810c9396 [40146.682901] [] 0xffffffff810c943a [40146.682901] [] 0xffffffff810029ab [40146.682901] Code: 89 c4 85 c0 75 13 48 85 db 74 0e 44 89 ea 49 8b 36 48 89 df e8 5f ff ff ff 5a 44 89 e0 59 5b 41 5c 41 5d 41 5e c9 c3 90 90 90 55 <48> 8b 46 18 48 89 e5 c9 c3 55 31 ff 8a 56 0b 48 89 e5 0f b6 c2 [40146.682901] RIP [] 0xffffffff811abd75 [40146.682901] RSP [40146.682901] CR2: 0000000000000018 [40146.689961] ---[ end trace 53b9544a53a60243 ]--- ******** Trace 2 end ******** _______________________________________________ xfs mailing list xfs@oss.sgi.com http://oss.sgi.com/mailman/listinfo/xfs