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Re: [xfs crash] Kernel BUG at /fs/xfs/support/debug.c:57

To: xfs@xxxxxxxxxxx
Subject: Re: [xfs crash] Kernel BUG at /fs/xfs/support/debug.c:57
From: Christian Fischer <Christian.Fischer@xxxxxxxxxxxxxxxxxxx>
Date: Wed, 29 Jul 2009 08:58:15 +0200
In-reply-to: <200907271657.55226.Christian.Fischer@xxxxxxxxxxxxxxxxxxx>
Organization: Eastern Graphics GmbH
References: <200907271657.55226.Christian.Fischer@xxxxxxxxxxxxxxxxxxx>
User-agent: KMail/1.9.9
On Monday 27 July 2009, Christian Fischer wrote:

Well, nobody likes to help.

I'm using xfs since years on a lot of servers and i had never any problems.

The question is what the fuck causes xfs to crash here?
I can't interprete the dump, can you help me with it?

No hints that the hardware fucks.

Christian

> Hello,
>
> we had the 4th xfs crash during the last 4 month on last friday.
> Maybe someone of you can give me some hints to get out what happens here.
>
> We have various XEN guests (gentoo amd64) running on two HP ProLiant DL360,
> both connected to a SUN Storedge 3300 SCSI storage. Except the boot
> partitions all disk space comes from the SUN storage via xen vscsi.
>
> We got xfs_suspend of the data partition one time, probably lost of the
> root partition one time (no logfile entry), and xfs_errors like this one
> two times. sde1 is a data partition of 1.4TB.
>
> We have problems on the fileserver only, all others runs well.
> The mailserver runs well, file- and mailserver have the highest disk load.
>
> All kernel versions (gentoo 2.6.18-xen-r12) and configurations are equal.
>
> Thanks for any help
> Christian
>
>
>
> Jul 24 11:33:30 ganges Access to block zero: fs: <sde1> inode: 2550198361
> start_block : 0 start_off : 0 blkcnt : 0 extent-state : 0
> Jul 24 11:33:30 ganges ----------- [cut here ] --------- [please bite
> here ] ---------
> Jul 24 11:33:30 ganges Kernel BUG
> at ...sr/src/linux-2.6.18-xen-r12/fs/xfs/support/debug.c:57
> Jul 24 11:33:30 ganges invalid opcode: 0000 [1] SMP
> Jul 24 11:33:30 ganges CPU 0
> Jul 24 11:33:30 ganges Modules linked in:
> Jul 24 11:33:30 ganges Pid: 15340, comm: smbd Not tainted 2.6.18-xen-r12 #8
> Jul 24 11:33:30 ganges RIP: e030:[<ffffffff8039383c>]  [<ffffffff8039383c>]
> cmn_err+0xdc/0x120
> Jul 24 11:33:30 ganges RSP: e02b:ffff8800a4b2d5c8  EFLAGS: 00010246
> Jul 24 11:33:30 ganges RAX: 0000000000000000 RBX: ffffffff8051cbf0 RCX:
> 0000000000000001
> Jul 24 11:33:30 ganges RDX: ffffffffff5fd000 RSI: 0000000000000000 RDI:
> ffffffff805826ac
> Jul 24 11:33:30 ganges RBP: 0000000000000000 R08: 0000000000000000 R09:
> 0000000000000080
> Jul 24 11:33:30 ganges R10: ffffffff8062c4c0 R11: ffffffff80213660 R12:
> 0000000000000000
> Jul 24 11:33:30 ganges R13: ffff8800f6a03bc0 R14: 0000000000000005 R15:
> 0000000000000000
> Jul 24 11:33:30 ganges FS:  00002ac859d276a0(0000)
> GS:ffffffff805e7000(0000) knlGS:0000000000000000
> Jul 24 11:33:30 ganges CS:  e033 DS: 0000 ES: 0000
> Jul 24 11:33:30 ganges Process smbd (pid: 15340, threadinfo
> ffff8800a4b2c000, task ffff880011892850)
> Jul 24 11:33:30 ganges Stack:  0000003000000030 ffff8800a4b2d6c8
> ffff8800a4b2d5e8 000000000000b5a0
> Jul 24 11:33:30 ganges 00000002000001bc ffffffff80367438 ffff8800ff7ecfc0
> 000000009800f059
> Jul 24 11:33:30 ganges 0000000000000000 0000000000000000 ffff8800e6d8ca30
> ffff8800a4b2d8b8
> Jul 24 11:33:30 ganges Call Trace:
> Jul 24 11:33:30 ganges [<ffffffff80367438>] xfs_iext_bno_to_ext+0x138/0x160
> Jul 24 11:33:30 ganges [<ffffffff80366dd3>] xfs_iext_get_ext+0x43/0x70
> Jul 24 11:33:30 ganges [<ffffffff80348c4d>]
> xfs_bmap_search_multi_extents+0xad/0x120
> Jul 24 11:33:30 ganges [<ffffffff80348d8e>]
> xfs_bmap_search_extents+0xce/0xf0 Jul 24 11:33:30 ganges
> [<ffffffff80349201>] xfs_bmapi+0x2f1/0x1cf0 Jul 24 11:33:30 ganges
> [<ffffffff8020aaef>] error_exit+0x0/0x71
> Jul 24 11:33:30 ganges [<ffffffff8036d61e>]
> xfs_iomap_write_delay+0x30e/0x490 Jul 24 11:33:30 ganges
> [<ffffffff80209426>] __switch_to+0x3e6/0x560 Jul 24 11:33:30 ganges
> [<ffffffff8036cc78>] xfs_iomap+0x228/0x570
> Jul 24 11:33:30 ganges [<ffffffff803884fb>] __xfs_get_blocks+0x7b/0x200
> Jul 24 11:33:30 ganges [<ffffffff8027df19>] alloc_page_buffers+0xa9/0x110
> Jul 24 11:33:30 ganges [<ffffffff8027f074>]
> __block_prepare_write+0x1d4/0x490 Jul 24 11:33:30 ganges
> [<ffffffff803886a0>] xfs_get_blocks+0x0/0x10 Jul 24 11:33:30 ganges
> [<ffffffff8027f34a>] block_prepare_write+0x1a/0x30 Jul 24 11:33:30 ganges
> [<ffffffff802567f8>]
> generic_file_buffered_write+0x288/0x680
> Jul 24 11:33:30 ganges [<ffffffff804a7dbe>] tcp_rcv_established+0x49e/0x7a0
> Jul 24 11:33:30 ganges [<ffffffff8047a268>] memcpy_toiovec+0x38/0x70
> Jul 24 11:33:30 ganges [<ffffffff8023346b>] current_fs_time+0x3b/0x40
> Jul 24 11:33:30 ganges [<ffffffff803ad561>] __up_write+0x21/0x120
> Jul 24 11:33:30 ganges [<ffffffff803917d3>] xfs_write+0x7a3/0xb40
> Jul 24 11:33:30 ganges [<ffffffff804a05db>] tcp_recvmsg+0x76b/0x8a0
> Jul 24 11:33:30 ganges [<ffffffff8047190b>] do_sock_read+0xab/0xc0
> Jul 24 11:33:30 ganges [<ffffffff8047217f>] sock_aio_read+0x4f/0x60
> Jul 24 11:33:30 ganges [<ffffffff8038d3cf>] xfs_file_aio_write+0x6f/0x80
> Jul 24 11:33:30 ganges [<ffffffff8027b9d7>] do_sync_write+0xc7/0x110
> Jul 24 11:33:30 ganges [<ffffffff8028ee43>] fasync_helper+0x63/0x150
> Jul 24 11:33:30 ganges [<ffffffff80293089>]
> __posix_lock_file_conf+0x3d9/0x430 Jul 24 11:33:30 ganges
> [<ffffffff80244970>] autoremove_wake_function+0x0/0x30 Jul 24 11:33:30
> ganges [<ffffffff80293cc6>] fcntl_setlk+0x286/0x2c0 Jul 24 11:33:30 ganges
> [<ffffffff8027c3cd>] vfs_write+0xbd/0x180
> Jul 24 11:33:30 ganges [<ffffffff8027cc1d>] sys_pwrite64+0x5d/0x90
> Jul 24 11:33:30 ganges [<ffffffff8020a3b0>] system_call+0x68/0x6d
> Jul 24 11:33:30 ganges [<ffffffff8020a348>] system_call+0x0/0x6d
> Jul 24 11:33:30 ganges
> Jul 24 11:33:30 ganges
> Jul 24 11:33:30 ganges Code: 0f 0b 68 f0 f7 51 80 c2 39 00 eb 2b 48 c7 c6
> a6 3a 52 80 48
> Jul 24 11:33:30 ganges RIP  [<ffffffff8039383c>] cmn_err+0xdc/0x120
> Jul 24 11:33:30 ganges RSP <ffff8800a4b2d5c8>



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