XFS and 2.6.12-rc5

[Goran Gajic <ggajic@sbb.co.yu>]

xfs partition is exported via nfs to FreeBSD-5.4 machine. This is what I 
find every morning in my syslog:

 ------------[ cut here ]------------
 kernel BUG at fs/xfs/support/debug.c:106!
 invalid operand: 0000 [#1]
 SMP
 Modules linked in:
 CPU:    1
 EIP:    0060:[<c02c651d>]    Not tainted VLI
 EFLAGS: 00010246   (2.6.12-rc5)
 EIP is at cmn_err+0xad/0xd0
 eax: c0507cc4   ebx: c04b3c98   ecx: c04f8910 edx: 00000293
 esi: 00000206   edi: c0601300   ebp: 00000000 esp: dfcafbd4
 ds: 007b   es: 007b   ss: 0068
Process kswapd0 (pid: 168, threadinfo=dfcae000 task=dfec8020)
Stack: c04bf14d c04a1931 c0601300 00000293 dd6e5e50 00000206 00000000 dfcafd2c
       c0269758 00000000 c04b3c98 df5d4ba0 1abd9322 00000000 00000000 ffffffff
       003fffff 00000000 00000000 00000001 dfcafd0c dfcafd2c 00000000 00e2af60
Call Trace:
 [<c0269758>] xfs_bmap_search_extents+0x108/0x140
 [<c026accd>] xfs_bmapi+0x28d/0x1660
 [<c013cf5a>] find_trylock_page+0x4a/0x60
 [<c02ba25f>] xfs_probe_delalloc_page+0x1f/0xa0
 [<c014153e>] free_pages_bulk+0x1ee/0x230
 [<c0146134>] cache_flusharray+0x84/0xd0
 [<c0291bfb>] xfs_iextract+0xbb/0x1d0
 [<c02b3441>] xfs_inactive_free_eofblocks+0x101/0x300
 [<c02c5c91>] vn_wakeup+0x21/0xb0
 [<c02c6256>] vn_purge+0x156/0x170
 [<c014898e>] shrink_list+0x2de/0x450
 [<c02b3eb0>] xfs_inactive+0x120/0x5a0
 [<c0146134>] cache_flusharray+0x84/0xd0
 [<c02c637c>] vn_rele+0xac/0xf0
 [<c02c4715>] linvfs_clear_inode+0x15/0x30
 [<c01773c6>] clear_inode+0xd6/0xe0
 [<c01773ec>] dispose_list+0x1c/0xa0
 [<c01424bc>] __read_page_state+0x9c/0xd0
 [<c017781c>] prune_icache+0x18c/0x200
 [<c01778af>] shrink_icache_memory+0x1f/0x50
 [<c0148412>] shrink_slab+0x132/0x190
 [<c014989f>] balance_pgdat+0x27f/0x3e0
 [<c0149ac0>] kswapd+0xc0/0x100
 [<c0131c20>] autoremove_wake_function+0x0/0x60
 [<c0102e32>] ret_from_fork+0x6/0x14
 [<c0131c20>] autoremove_wake_function+0x0/0x60
 [<c0149a00>] kswapd+0x0/0x100
 [<c0101045>] kernel_thread_helper+0x5/0x10
Code: b8 00 13 60 c0 89 44 24 08 8b 04 ad e0 7c
50 c0 89 44 24 04 e8 75 5c e5 ff 8b 54 24 0c b8 c4 7c 50 c0 e8 c7 60 1b 00
85 ed 75 08 <0f> 0b 6a 00 49 19 4a c0 8b 5c 24 10 8b 74 24 14 8b 7c 24 18 
8b


Regards,
gg.
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