I forced a RAID online. I have done that before and xfs_repair
normally removes the last hour of data or so, but saves everything
else.
Today that did not work:
/usr/local/src/xfsprogs-3.1.10/repair# ./xfs_repair -n /dev/md5p1
Phase 1 - find and verify superblock...
Phase 2 - using internal log
- scan filesystem freespace and inode maps...
flfirst 232 in agf 91 too large (max = 128)
Segmentation fault (core dumped)
Core put in: http://dna.ku.dk/~tange/tmp/xfs_repair.core.bz2
I tried using the git-version, too, but could not get that to compile.
# uname -a
Linux franklin 3.2.0-0.bpo.4-amd64 #1 SMP Debian 3.2.35-2~bpo60+1
x86_64 GNU/Linux
# ./xfs_repair -V
xfs_repair version 3.1.10
# cat /proc/cpuinfo |grep MH | wc
64 256 1280
# cat /proc/partitions |grep md5
9 5 125024550912 md5
259 0 107521114112 md5p1
259 1 17503434752 md5p2
# cat /proc/mdstat
Personalities : [raid0] [raid6] [raid5] [raid4]
md5 : active raid0 md1[0] md4[3] md3[2] md2[1]
125024550912 blocks super 1.2 512k chunks
md1 : active raid6 sdd[1] sdi[9] sdq[13] sdau[7] sdt[10] sdg[5] sdf[4] sde[2]
31256138752 blocks super 1.2 level 6, 128k chunk, algorithm 2
[10/8] [_UU_UUUUUU]
bitmap: 2/2 pages [8KB], 1048576KB chunk
md4 : active raid6 sdo[13] sdu[9] sdad[8] sdh[7] sdc[6] sds[11]
sdap[3] sdao[2] sdk[1]
31256138752 blocks super 1.2 level 6, 128k chunk, algorithm 2
[10/8] [_UUUU_UUUU]
[>....................] recovery = 2.1% (84781876/3907017344)
finish=2196.4min speed=29003K/sec
bitmap: 2/2 pages [8KB], 1048576KB chunk
md2 : active raid6 sdac[0] sdal[9] sdak[8] sdaj[7] sdai[6] sdah[5]
sdag[4] sdaf[3] sdae[2] sdr[10]
31256138752 blocks super 1.2 level 6, 128k chunk, algorithm 2
[10/10] [UUUUUUUUUU]
bitmap: 0/2 pages [0KB], 1048576KB chunk
md3 : active raid6 sdaq[0] sdab[9] sdaa[8] sdb[7] sdy[6] sdx[5] sdw[4]
sdv[3] sdz[10] sdj[1]
31256138752 blocks super 1.2 level 6, 128k chunk, algorithm 2
[10/10] [UUUUUUUUUU]
bitmap: 0/2 pages [0KB], 1048576KB chunk
unused devices: <none>
# smartctl -a /dev/sdau|grep Model
Device Model: Hitachi HDS724040ALE640
# hdparm -W /dev/sdau
/dev/sdau:
write-caching = 0 (off)
# dmesg
[ 3745.914280] xfs_repair[25300]: segfault at 7f5d9282b000 ip
000000000042d068 sp 00007f5da3183dd0 error 4 in
xfs_repair[400000+7f000]
/Ole
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