> On Mar 21, 2016, at 11:44 AM, Dan McDonald <[email protected]> wrote:
>
>
> This customer has it narrowed to ONE dataset. It's on a massive pool
> however. Is there zdb(1M) magic I can perform to just inspect the one
> dataset's stuff? He can panic the machine if he mounts this dataset, but if
> he doesn't, things are good.
Sorry for not RingTFM more carefully. Got a view of what I believe to be the
bad object with zdb:
# zdb -edvvv mirpool02/BENZINGER/benzinger2 0xe107ad5
Dataset mirpool02/BENZINGER/benzinger2 [ZPL], ID 406422, cr_txg 9560937, 39.4T,
60107812 objects, rootbp DVA[0]=<10:fc00000c000:3000>
DVA[1]=<0:1080000de000:3000> [L0 DMU objset] fletcher4 lz4 LE contiguous unique
double size=800L/200P birth=16624281L/16624281P fill=60107812
cksum=16ee3210a5:72299763bbf:143b2e8ac2324:29e914306f1f03
Object lvl iblk dblk dsize lsize %full type
235961045 1 16K 512 0 512 0.00 ZFS directory
168 bonus System attributes
dnode flags: USED_BYTES USERUSED_ACCOUNTED
dnode maxblkid: 0
path
/suy/IDAIFXO/PIBCT/PIBCT468/PIBCT468n_wm-medialorbitofrontal_PVC2C.tac/<xattrdir>
uid 1320
gid 10
atime Tue Mar 8 18:00:13 2016
mtime Wed Mar 9 09:07:18 2016
ctime Wed Mar 9 09:07:18 2016
crtime Tue Mar 8 18:00:13 2016
gen 16153148
mode 41777
size 2
parent 235961044
links 0
pflags 40800000145
Fat ZAP stats:
Pointer table:
1 elements
zt_blk: 0
zt_numblks: 0
zt_shift: 0
zt_blks_copied: 0
zt_nextblk: 0
ZAP entries: 0
Leaf blocks: 0
Total blocks: 0
zap_block_type: 0x0
zap_magic: 0x0
zap_salt: 0x0
Leafs with 2^n pointers:
Blocks with n*5 entries:
Blocks n/10 full:
Entries with n chunks:
Buckets with n entries:
assertion failed for thread 0xffffdf7fff162a40, thread-id 1:
zap_f_phys(zap)->zap_magic == 0x2F52AB2ABULL (0x0 == 0x2f52ab2ab), file
../../../uts/common/fs/zfs/zap.c, line 577
Abort (core dumped)
[1:2037] 12:50:57 Mon Mar 21 [root@mir-zfs02:/dev/pts/5 +1] /dump/savecore
#
I would appreciate any insight into this corruption. I'll be continuing to dig
on my own.
Thanks,
Dan
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