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Re: xfs corruption or not

To: Nathan Scott <nathans@xxxxxxx>
Subject: Re: xfs corruption or not
From: Ivan Gyurdiev <ivg2@xxxxxxxxxxx>
Date: Fri, 04 Jun 2004 00:39:59 -0600
Cc: Linux-Kernel <linux-kernel@xxxxxxxxxxxxxxx>, linux-xfs@xxxxxxxxxxx
In-reply-to: <20040604052953.GE13756@frodo>
References: <40BFDB13.7000901@cornell.edu> <20040604052953.GE13756@frodo>
Sender: linux-xfs-bounce@xxxxxxxxxxx
User-agent: Mozilla Thunderbird 0.6 (X11/20040519)

Do you know if the kernel was low on memory at the time?  (any
signs of allocation failures in your system log?)

This looks like a memory allocation failure which hasn't been
gracefully handled (or approriately retried) in XFS - there's
a few patches being worked on to improve this, but they aren't
ready to be merged in just yet.

Well, now that you mention it, there's another trace right in front of the oops. Don't know why I missed it - probably thought it was the same thing. It says allocation failure. I am running FC2 with 128MB SDRAM.

thunderbird-bin: page allocation failure. order:5, mode:0x50
[<0212d155>] __alloc_pages+0x29a/0x2b4
[<0212d187>] __get_free_pages+0x18/0x24
[<0212f6ec>] kmem_getpages+0x15/0x98
[<0212ff3c>] cache_grow+0x7b/0x18e
[<02130184>] cache_alloc_refill+0x135/0x164
[<02130562>] __kmalloc+0x64/0x76
[<0a8e7e0a>] xfs_iext_realloc+0x1c8/0x23b [xfs]
[<0a8c4883>] xfs_bmap_insert_exlist+0x23/0xae [xfs]
[<0a8c1cc7>] xfs_bmap_add_extent_hole_delay+0x42f/0x485 [xfs]
[<0218fcd9>] __delay+0x9/0xa
[<021f9ec8>] dma_timer_expiry+0x0/0x63
[<0a8bf6e8>] xfs_bmap_add_extent+0x13b/0x38e [xfs]
[<0a8c66d9>] xfs_bmapi+0x946/0x104d [xfs]
[<0a8f997b>] xfs_trans_read_buf+0x44/0x2d9 [xfs]
[<0a8cbe79>] xfs_bmbt_get_state+0xa/0x18 [xfs]
[<0a8c4ef4>] xfs_bmap_search_extents+0x3d/0x43 [xfs]
[<0a8c60a7>] xfs_bmapi+0x314/0x104d [xfs]
[<0a8ea9fe>] xfs_iomap_write_delay+0x54a/0x5b6 [xfs]
[<0212c0a1>] mempool_alloc+0x5d/0xf6
[<0a8e9f4c>] xfs_iomap+0x23b/0x3eb [xfs] Jun 3 19:57:11 cobra kernel: [<0a8e9ff4>] xfs_iomap+0x2e3/0x3eb [xfs]
[<0a90910c>] xfs_bmap+0x1a/0x1e [xfs]
[<0a9036f3>] linvfs_get_block_core+0x83/0x234 [xfs]
[<021e25f6>] cfq_next_request+0x21/0x37
[<02140f8b>] __wait_on_buffer+0x7d/0x85 Jun 3 19:57:11 cobra kernel: [<0a9038b7>] linvfs_get_block+0x13/0x17 [xfs]
[<021425a7>] __block_prepare_write+0x146/0x3a5
[<02142e47>] block_prepare_write+0x16/0x22
[<0a9038a4>] linvfs_get_block+0x0/0x17 [xfs]
[<0212b79d>] generic_file_aio_write_nolock+0x57e/0x84e
[<0a9038a4>] linvfs_get_block+0x0/0x17 [xfs]
[<0a8e91d1>] xfs_ichgtime+0xee/0xf6 [xfs] Jun 3 19:57:11 cobra kernel: [<0a908e2a>] xfs_write+0x3e5/0x675 [xfs]
[<0a9058cf>] linvfs_write+0xa6/0xbc [xfs]
[<021400cb>] do_sync_write+0x68/0x9d
[<02146f77>] sys_stat64+0x1e/0x23
[<021401b8>] vfs_write+0xb8/0xe4
[<02140252>] sys_write+0x2c/0x42

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