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XFS stack corruption: BUG: unable to handle kernel paging request

To: xfs@xxxxxxxxxxx
Subject: XFS stack corruption: BUG: unable to handle kernel paging request
From: Michael Monnerie <michael.monnerie@xxxxxxxxxxxxxxxxxxx>
Date: Wed, 16 Jun 2010 08:10:23 +0200
Organization: it-management http://it-management.at
User-agent: KMail/1.12.4 (Linux/2.6.31.12-0.2-desktop; KDE/4.3.5; x86_64; ; )
This happened while I did an "rsync" to that server, and it was searching the 
files to sync.
Messages grabbed from the console:

[2188628.147321] BUG: unable to handle kernel paging request at 000000052311ba18
[2188628.147339] IP: [<ffffffff80034832>] dequeue_task+0x72/0x110
[2188628.147357] PGD 126a3067 PUD 0 
[2188628.147362] Thread overran stack, or stack corrupted
[2188628.147366] Oops: 0000 [#1] SMP 
[2188628.147372] last sysfs file: /sys/devices/xen/vif-1/modalias
[2188628.147376] CPU 0 
[2188628.147380] Modules linked in: nls_utf8 nfs lockd fscache nfs_acl 
auth_rpcgss sunrpc ipv6 ramzswap xvmalloc lzo_decompress lzo_compress loop 
dm_mod reiserfs xfs exportfs xennet xenblk cdrom
[2188628.147412] Pid: 30719, comm: pdflush Not tainted 2.6.31.12-0.2-xen #1 
[2188628.147416] RIP: e030:[<ffffffff80034832>]  [<ffffffff80034832>] 
dequeue_task+0x72/0x110
[2188628.147425] RSP: e02b:ffff88002719df20  EFLAGS: 00010006
[2188628.147428] RAX: 000000000000a380 RBX: ffff880022338340 RCX: 
00000000b453311b
[2188628.147432] RDX: 0000000000000001 RSI: ffff880022338340 RDI: 
ffffc9000000a380
[2188628.147436] RBP: ffff88002719df40 R08: ffff88002719e000 R09: 
0000000000000000
[2188628.147439] R10: 0000000001c9c356 R11: 0000000000000000 R12: 
0000000000000000
[2188628.147443] R13: 00000001209bcf34 R14: ffffffff80841c00 R15: 
ffffffff80841c00
[2188628.147450] FS:  00007fd59f9116f0(0000) GS:ffffc90000000000(0000) 
knlGS:0000000000000000
sk+0x72/0x110
[2188628.147425] RSP: e02b:ffff88002719df20  EFLAGS: 00010006
[2188628.147428] RAX: 000000000000a380 RBX: ffff880022338340 RCX: 
00000000b453311b
[2188628.147432] RDX: 0000000000000001 RSI: ffff880022338340 RDI: 
ffffc9000000a380
[2188628.147436] RBP: ffff88002719df40 R08: ffff88002719e000 R09: 
0000000000000000
[2188628.147439] R10: 0000000001c9c356 R11: 0000000000000000 R12: 
0000000000000000
[2188628.147443] R13: 00000001209bcf34 R14: ffffffff80841c00 R15: 
ffffffff80841c00
[2188628.147450] FS:  00007fd59f9116f0(0000) GS:ffffc90000000000(0000) 
knlGS:0000000000000000
[2188628.147454] CS:  e033 DS: 0000 ES: 0000 CR0: 000000008005003b
[2188628.147458] CR2: 000000052311ba18 CR3: 0000000025a3f000 CR4: 
0000000000000660
[2188628.147462] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 
0000000000000000
[2188628.147466] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 
0000000000000400
[2188628.147471] Process pdflush (pid: 30719, threadinfo ffff88002719e000, task 
ffff880022338340)
[2188628.147474] Stack:
[2188628.147477]  ffff88002719df70 00000000b453311b 62a8a813361341f2 
ffffc9000000a380
[2188628.147484] <0> ffff88002719df70 ffffffff80034968 ffffc9000000a380 
00000000b453311b
[2188628.147492] <0> 00000001209bcf34 ffffc9000000a380 ffff88002719e080 
ffffffff8046c8fc
[2188628.147501] Call Trace:
[2188628.147516]  [<ffffffff80034968>] deactivate_task+0x38/0x60
[2188628.147526]  [<ffffffff8046c8fc>] thread_return+0x157/0x3fb
[2188628.147534]  [<ffffffff8046cf3d>] schedule_timeout+0x14d/0x200
[2188628.147541]  [<ffffffff8046c140>] io_schedule_timeout+0x80/0xf0
[2188628.147549]  [<ffffffff800f01ea>] congestion_wait+0x7a/0xb0
[2188628.147589]  [<ffffffffa009dcc6>] _xfs_buf_lookup_pages+0x326/0x390 [xfs]
[2188628.147692]  [<ffffffffa009ede1>] xfs_buf_get_flags+0x81/0x1a0 [xfs]
[2188628.147785]  [<ffffffffa009ef26>] xfs_buf_read_flags+0x26/0xd0 [xfs]
[2188628.147877]  [<ffffffffa0091ab9>] xfs_trans_read_buf+0x1e9/0x320 [xfs]
[2188628.147957]  [<ffffffffa005b278>] xfs_btree_read_buf_block+0x68/0xe0 [xfs]
[2188628.148005]  [<ffffffffa005b99e>] xfs_btree_lookup_get_block+0x8e/0x110 
[xfs]
[2188628.148021]  [<ffffffffa005c0af>] xfs_btree_lookup+0xdf/0x4d0 [xfs]
[2188628.148021]  [<ffffffffa0042b77>] xfs_alloc_lookup_eq+0x27/0x50 [xfs]
[2188628.148021]  [<ffffffffa0042d86>] xfs_alloc_fixup_trees+0xc6/0x370 [xfs]
[2188628.148021]  [<ffffffffa0044c30>] xfs_alloc_ag_vextent_near+0x4e0/0x9a0 
[xfs]
[2188628.148021]  [<ffffffffa00451f5>] xfs_alloc_ag_vextent+0x105/0x160 [xfs]
[2188628.148021]  [<ffffffffa0045a04>] xfs_alloc_vextent+0x204/0x4b0 [xfs]
[2188628.148021]  [<ffffffffa0055c8b>] xfs_bmap_btalloc+0x18b/0xae0 [xfs]
[2188628.148021]  [<ffffffffa005660f>] xfs_bmap_alloc+0x2f/0x70 [xfs]
[2188628.148021]  [<ffffffffa0057272>] xfs_bmapi+0xc22/0x1320 [xfs]
[2188628.148021]  [<ffffffffa007c248>] xfs_iomap_write_allocate+0x1d8/0x3f0 
[xfs]
[2188628.148021]  [<ffffffffa007d089>] xfs_iomap+0x2c9/0x300 [xfs]
[2188628.148021]  [<ffffffffa009a1b8>] xfs_map_blocks+0x38/0x60 [xfs]


-- 
mit freundlichen Grüssen,
Michael Monnerie, Ing. BSc

it-management Internet Services
http://proteger.at [gesprochen: Prot-e-schee]
Tel: 0660 / 415 65 31

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