I have a 100gb SAN lun in a pool, been running ok for about 6 months. panicked
the system this morning. system was running S10U2. In the course of
troubleshooting I've installed the latest recommended bundle including kjp
118833-36 and zfs patch 124204-03
created as:
zpool create zfspool01 /dev/dsk/emcpower0c
zfs create zfspool01/nb60openv
zfs set mountpoint=legacy zfspool01/nb60openv
mkdir -p /zfs/NB60/nb60openv
mount -F zfs zfspool01/nb60openv /zfs/NB60/nb60openv
The mount command now causes a panic:
zfs: WARNING: ZFS replay transaction error 5, dataset zfspool01/nb60openv, seq
0x4180eb0, txtype 9
panic[cpu1]/thread=2a100b75cc0: assertion failed: ss != NULL, file:
../../common/fs/zfs/space_map.c, line: 125
000002a100b74c40 genunix:assfail+74 (7b252450, 7b252460, 7d, 183d400, 11eb000,
0)
%l0-3: 0000000000000000 0000000000000000 00000000011e5368 000003000b6d2528
%l4-7: 00000000011eb000 0000000000000000 000000000186f800 0000000000000000
000002a100b74cf0 zfs:space_map_remove+b8 (60001db9eb8, 17698c0000, 20000,
7b252400, 7b252400, 7b252400)
%l0-3: 0000000000000000 00000017698e0000 00000017623a0000 000003000b6d4fd8
%l4-7: 000003000b6d5050 0000001762360000 000000007b252000 00000017623e0000
...
Noticing the lun was nearly full, I added a 2nd 100g lun to the pool.
Multiple runs of 'zpool scrub' have not fixed anything...
sjcbackup01# zpool status -xv
pool: zfspool01
state: ONLINE
status: One or more devices has experienced an error resulting in data
corruption. Applications may be affected.
action: Restore the file in question if possible. Otherwise restore the
entire pool from backup.
see: http://www.sun.com/msg/ZFS-8000-8A
scrub: none requested
config:
NAME STATE READ WRITE CKSUM
zfspool01 ONLINE 0 0 0
emcpower0c ONLINE 0 0 0
emcpower1c ONLINE 0 0 0
errors: The following persistent errors have been detected:
DATASET OBJECT RANGE
zfspool01/nb60openv 292 1835008-1966080
zfspool01/nb60openv 292 2752512-2883584
I can get the info about the object:
sjcbackup01# zdb -vvv zfspool01/nb60openv 292
Dataset zfspool01/nb60openv [ZPL], ID 20, cr_txg 23, last_txg 2158772, 92.3G,
59005 objects, rootbp [L0 DMU objset] 400L/200P DVA[0]=<0:18c0349600:200>
DVA[1]=<0:6c0329600:200> DVA[2]=<0:102040a200:200> fletcher4 lzjb BE contiguous
birth=2158772 fill=59005
cksum=103d9a0f86:66dfb432a03:14f23e0662778:2ebcc4bd282dfb
ZIL header: claim_txg 2154406, seq 0
first block: [L0 ZIL intent log] 13000L/13000P
DVA[0]=<0:7208e9000:13000> zilog uncompressed BE contiguous birth=2154403
fill=0 cksum=5f8aab176130501f:6d23a2551b6eb2cf:14:121ac8
...
Object lvl iblk dblk lsize asize type
292 3 16K 128K 25.1M 25.1M ZFS plain file
264 bonus ZFS znode
path /db/data/EMM_DATA.db
atime Sat Feb 10 08:44:07 2007
mtime Sat Feb 10 09:40:19 2007
ctime Sat Feb 10 09:40:19 2007
crtime Sun Oct 8 16:15:31 2006
gen 150
mode 100600
size 26226688
parent 288
links 1
xattr 0
rdev 0x0000000000000000
but zdb crashes:
sjcbackup01# zdb -c zfspool01
Traversing all blocks to verify checksums and verify nothing leaked ...
Assertion failed: ss == NULL, file ../../../uts/common/fs/zfs/space_map.c, line
81, function space_map_add
Abort (core dumped)
I take it there's some problem replaying the transaction log, but could use
some hints...
Thanks.
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