[<f110020e>] xfs_alloc_ag_vextent+0x58/0xe61 [xfs]
 [<f1101dde>] xfs_alloc_vextent+0x2fc/0x435 [xfs]
 [<f11121be>] xfs_bmapi+0x1d19/0x2a42 [xfs]
 [<b013259f>] mempool_alloc+0x21/0x99
 [<f1112913>] xfs_bmapi+0x246e/0x2a42 [xfs]
 [<f1139318>] xlog_grant_push_ail+0x29/0xc0 [xfs]
 [<f1136c26>] xfs_iomap_write_allocate+0x2b5/0x46b [xfs]
 [<b0196a71>] generic_make_request+0x163/0x175
 [<f1135790>] xfs_iomap+0x450/0x7ea [xfs]
 [<f114e2eb>] xfs_map_blocks+0x2a/0x42 [xfs]
 [<f114ef2c>] xfs_page_state_convert+0x30d/0xc65 [xfs]
 [<f08eb913>] __map_bio+0x43/0x6c [dm_mod]
 [<f08ebdb3>] __split_bio+0x3e4/0x3ed [dm_mod]
 [<b013007b>] find_get_pages_tag+0x28/0x5f
 [<f114f9a1>] linvfs_writepage+0x96/0xcd [xfs]
 [<b0162ddb>] mpage_writepages+0x192/0x2ea
 [<f114f90b>] linvfs_writepage+0x0/0xcd [xfs]
 [<b0134a4e>] do_writepages+0x30/0x39
 [<b016189c>] __writeback_single_inode+0x147/0x2b9
 [<f08eb207>] dm_any_congested+0x30/0x37 [dm_mod]
 [<b0161e07>] sync_sb_inodes+0x175/0x212
 [<b0134eca>] pdflush+0x0/0x16a
 [<b016201b>] writeback_inodes+0x48/0x72
 [<b01348aa>] wb_kupdate+0x98/0xfb
 [<b02620a3>] schedule+0x454/0x4c1
 [<b0134f9c>] pdflush+0xd2/0x16a
 [<b0134812>] wb_kupdate+0x0/0xfb
 [<b012414d>] kthread+0x94/0xc1
 [<b01240b9>] kthread+0x0/0xc1
 [<b0101005>] kernel_thread_helper+0x5/0xb
Filesystem "dm-0": XFS internal error xfs_btree_check_sblock at line 336 of file fs/xfs/xfs_btree.c.  Caller 0xf1102894
 [<f11197f5>] xfs_btree_check_sblock+0x9b/0xb8 [xfs]
 [<f1102894>] xfs_alloc_lookup+0x107/0x314 [xfs]
 [<f1102894>] xfs_alloc_lookup+0x107/0x314 [xfs]
 [<f1101554>] xfs_free_ag_extent+0x47c/0x5d7 [xfs]
 [<f1101abd>] xfs_free_extent+0xb7/0xdc [xfs]
 [<f1144ccb>] xfs_trans_get_efd+0x1f/0x27 [xfs]
 [<f110b614>] xfs_bmap_finish+0xe7/0x16a [xfs]
 [<f11317d8>] xfs_itruncate_finish+0x1b8/0x2c2 [xfs]
 [<f114d430>] xfs_inactive+0x243/0x8db [xfs]
 [<f1133300>] xfs_iunlink+0x1c7/0x1d4 [xfs]
 [<f11534dd>] validate_fields+0x24/0x5b [xfs]
 [<f1148180>] xfs_fsync+0x14/0x175 [xfs]
 [<f1155898>] linvfs_clear_inode+0x31/0x57 [xfs]
 [<b015a7ec>] clear_inode+0xb9/0xe7
 [<b015ac0c>] generic_delete_inode+0xb6/0xfb
 [<b0153203>] do_unlinkat+0xb4/0xf9
 [<b01028df>] sysenter_past_esp+0x54/0x75
xfs_force_shutdown(dm-0,0x8) called from line 4200 of file fs/xfs/xfs_bmap.c.  Return address = 0xf110b65a
Filesystem "dm-0": Corruption of in-memory data detected.  Shutting down filesystem: dm-0
Please umount the filesystem, and rectify the problem(s)