[dm-devel] 2.6.18.1, ext3: attempt to access beyond end of device

[Andre Noll]

Hi

While doing some stress tests on our raid system, we encountered the
following:

[13933.173768] EXT3-fs error (device dm-0): ext3_new_block: Allocating block in system zone - blocks from 192708608, length 1
[13933.176790] Aborting journal on device dm-0.
[13934.512464] ext3_abort called.
[13934.514031] EXT3-fs error (device dm-0): ext3_journal_start_sb: Detected aborted journal
[13934.517537] Remounting filesystem read-only
[13934.519438] EXT3-fs error (device dm-0): ext3_free_blocks: Freeing blocks in system zones - Block = 192708608, count = 1
[13934.524084] EXT3-fs error (device dm-0) in ext3_free_blocks_sb: Journal has aborted
[14585.157319] attempt to access beyond end of device
[14585.159480] dm-1: rw=1, want=9592553968, limit=5292146688

[many of these with different "want" values]

[14586.072700] Buffer I/O error on device dm-1, logical block 1313832302
[14586.076005] lost page write due to I/O error on dm-1
[14586.079177] Aborting journal on device dm-1.
[14586.082161] EXT3-fs error (device dm-1) in ext3_dirty_inode: IO failure
[14586.102836] EXT3-fs error (device dm-1) in ext3_ordered_writepage: IO failure
[14586.226243] ext3_abort called.
[14586.226249] EXT3-fs error (device dm-1) in ext3_ordered_commit_write: IO failure
[14586.227872] ext3_abort called.
[14586.227875] EXT3-fs error (device dm-1): ext3_journal_start_sb: Detected aborted journal
[14586.227878] Remounting filesystem read-only
[14586.247468] EXT3-fs error (device dm-1): ext3_journal_start_sb: Detected aborted journal
[14587.486480] __journal_remove_journal_head: freeing b_committed_data
[14587.489821] __journal_remove_journal_head: freeing b_committed_data
[58760.477871] EXT3-fs error (device dm-1): ext3_readdir: bad entry in directory #2: rec_len % 4 != 0 - offset=0, inode=1753114490, rec_len=19037, name_len=53
[145152.943222] EXT3-fs error (device dm-1): ext3_readdir: bad entry in directory #2: rec_len % 4 != 0 - offset=0, inode=1753114490, rec_len=19037, name_len=53

Further info:

root at ubuntu:~# vgs
  VG   #PV #LV #SN Attr   VSize VFree
  vg     1   2   0 wz--n- 6.36T    0 
root at ubuntu:~# pvs
  PV         VG   Fmt  Attr PSize PFree
  /dev/md0   vg   lvm2 a-   6.36T    0 
root at ubuntu:~# lvs
  LV       VG   Attr   LSize Origin Snap%  Move Log Copy% 
  ext3_lv1 vg   -wi-ao 3.90T                              
  ext3_lv2 vg   -wi-ao 2.46T                              
root at ubuntu:~# df -h /dev/vg/*
Filesystem            Size  Used Avail Use% Mounted on
/dev/vg/ext3_lv1      3.9T  724G  3.0T  20% /mnt/lv1
/dev/vg/ext3_lv2      2.5T  552G  1.8T  24% /mnt/lv2
root at ubuntu:~# uname -a
Linux ubuntu 2.6.18.1 #1 SMP Sun Oct 15 13:43:51 CDT 2006 ppc64 GNU/Linux
root at ubuntu:~# cat /proc/mdstat 
Personalities : [raid6] [raid5] [raid4] 
md0 : active raid6 sdb[0] sdq[15] sdp[14] sdo[13] sdn[12] sdm[11] sdl[10] sdk[9] sdj[8] sdi[7] sdh[6] sdg[5] sdf[4] sde[3] sdd[2] sdc[1]
      6833669248 blocks level 6, 64k chunk, algorithm 2 [16/16] [UUUUUUUUUUUUUUUU]

Andre

-- 
The only person who always got his work done by Friday was Robinson Crusoe
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