zfs panic: solaris assert
Ivan Safonov
isafonov at me.com
Sun Dec 1 07:19:03 UTC 2019
Hi there
I have a small home server with a ZFS pool created in FreeBSD 11.1 and updated to 12.0 -> 12.1. A few days ago, the server rebooted with panic
panic: solaris assert: size <= (1ULL << 24) (0x1401000 <= 0x1000000), file: /usr/src/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/abd.c, line: 296
cpuid = 3
time = 1574981747
KDB: stack backtrace:
#0 0xffffffff80c1d297 at kdb_backtrace+0x67
#1 0xffffffff80bd05cd at vpanic+0x19d
#2 0xffffffff80bd0423 at panic+0x43
#3 0xffffffff82a6e22c at assfail3+0x2c
#4 0xffffffff8284a8f7 at abd_alloc+0x67
#5 0xffffffff82850319 at arc_hdr_alloc_pabd+0x99
#6 0xffffffff8284d554 at arc_hdr_alloc+0x124
#7 0xffffffff8284ef13 at arc_read+0x243
#8 0xffffffff8287942d at traverse_prefetch_metadata+0xbd
#9 0xffffffff828788cc at traverse_visitbp+0x3dc
#10 0xffffffff82878930 at traverse_visitbp+0x440
#11 0xffffffff82878930 at traverse_visitbp+0x440
#12 0xffffffff82878930 at traverse_visitbp+0x440
#13 0xffffffff82878930 at traverse_visitbp+0x440
#14 0xffffffff82879513 at traverse_dnode+0xd3
#15 0xffffffff82878c30 at traverse_visitbp+0x740
#16 0xffffffff828780a7 at traverse_impl+0x317
#17 0xffffffff8287837c at traverse_pool+0x14c
Uptime: 1m0s
I tested the memory and drives and they look OK. Then I installed FreeBSD 12.1 on a USB drive
zpool import
pool: zroot
id: 5722521002676846505
state: ONLINE
status: Some supported features are not enabled on the pool.
action: The pool can be imported using its name or numeric identifier, though
some features will not be available without an explicit 'zpool upgrade'.
config:
zroot ONLINE
raidz1-0 ONLINE
gpt/D0-33GTM0VGS ONLINE
gpt/D1-Z1E3Q7KP ONLINE
gpt/D2-Z4ZARG1V ONLINE
I tried to import the pool but got the same panic
zpool import -o readonly -f -F -N -R /pool zroot
zdb -ue zroot
Uberblock:
magic = 0000000000bab10c
version = 5000
txg = 11751485
guid_sum = 14638353410936556308
timestamp = 1574776136 UTC = Tue Nov 26 16:48:56 2019
checkpoint_txg = 0
zdb -l /dev/gpt/D0-33GTM0VGS
Code:
------------------------------------
LABEL 0
------------------------------------
version: 5000
name: 'zroot'
state: 0
txg: 11750848
pool_guid: 5722521002676846505
hostid: 1550328424
hostname: ''
top_guid: 10071190156355008053
guid: 4016597551985842896
vdev_children: 1
vdev_tree:
type: 'raidz'
id: 0
guid: 10071190156355008053
nparity: 1
metaslab_array: 39
metaslab_shift: 35
ashift: 12
asize: 5997325713408
is_log: 0
create_txg: 4
children[0]:
type: 'disk'
id: 0
guid: 4016597551985842896
path: '/dev/gpt/D0-33GTM0VGS'
whole_disk: 1
DTL: 70406
create_txg: 4
children[1]:
type: 'disk'
id: 1
guid: 18015782253695591313
path: '/dev/gpt/D1-Z1E3Q7KP'
whole_disk: 1
DTL: 70405
create_txg: 4
children[2]:
type: 'disk'
id: 2
guid: 13705750593642370773
path: '/dev/gpt/D2-Z4ZARG1V'
whole_disk: 1
DTL: 70323
create_txg: 4
features_for_read:
com.delphix:hole_birth
com.delphix:embedded_data
------------------------------------
LABEL 1
------------------------------------
version: 5000
name: 'zroot'
state: 0
txg: 11750848
pool_guid: 5722521002676846505
hostid: 1550328424
hostname: ''
top_guid: 10071190156355008053
guid: 4016597551985842896
vdev_children: 1
vdev_tree:
type: 'raidz'
id: 0
guid: 10071190156355008053
nparity: 1
metaslab_array: 39
metaslab_shift: 35
ashift: 12
asize: 5997325713408
is_log: 0
create_txg: 4
children[0]:
type: 'disk'
id: 0
guid: 4016597551985842896
path: '/dev/gpt/D0-33GTM0VGS'
whole_disk: 1
DTL: 70406
create_txg: 4
children[1]:
type: 'disk'
id: 1
guid: 18015782253695591313
path: '/dev/gpt/D1-Z1E3Q7KP'
whole_disk: 1
DTL: 70405
create_txg: 4
children[2]:
type: 'disk'
id: 2
guid: 13705750593642370773
path: '/dev/gpt/D2-Z4ZARG1V'
whole_disk: 1
DTL: 70323
create_txg: 4
features_for_read:
com.delphix:hole_birth
com.delphix:embedded_data
------------------------------------
LABEL 2
------------------------------------
version: 5000
name: 'zroot'
state: 0
txg: 11750848
pool_guid: 5722521002676846505
hostid: 1550328424
hostname: ''
top_guid: 10071190156355008053
guid: 4016597551985842896
vdev_children: 1
vdev_tree:
type: 'raidz'
id: 0
guid: 10071190156355008053
nparity: 1
metaslab_array: 39
metaslab_shift: 35
ashift: 12
asize: 5997325713408
is_log: 0
create_txg: 4
children[0]:
type: 'disk'
id: 0
guid: 4016597551985842896
path: '/dev/gpt/D0-33GTM0VGS'
whole_disk: 1
DTL: 70406
create_txg: 4
children[1]:
type: 'disk'
id: 1
guid: 18015782253695591313
path: '/dev/gpt/D1-Z1E3Q7KP'
whole_disk: 1
DTL: 70405
create_txg: 4
children[2]:
type: 'disk'
id: 2
guid: 13705750593642370773
path: '/dev/gpt/D2-Z4ZARG1V'
whole_disk: 1
DTL: 70323
create_txg: 4
features_for_read:
com.delphix:hole_birth
com.delphix:embedded_data
------------------------------------
LABEL 3
------------------------------------
version: 5000
name: 'zroot'
state: 0
txg: 11750848
pool_guid: 5722521002676846505
hostid: 1550328424
hostname: ''
top_guid: 10071190156355008053
guid: 4016597551985842896
vdev_children: 1
vdev_tree:
type: 'raidz'
id: 0
guid: 10071190156355008053
nparity: 1
metaslab_array: 39
metaslab_shift: 35
ashift: 12
asize: 5997325713408
is_log: 0
create_txg: 4
children[0]:
type: 'disk'
id: 0
guid: 4016597551985842896
path: '/dev/gpt/D0-33GTM0VGS'
whole_disk: 1
DTL: 70406
create_txg: 4
children[1]:
type: 'disk'
id: 1
guid: 18015782253695591313
path: '/dev/gpt/D1-Z1E3Q7KP'
whole_disk: 1
DTL: 70405
create_txg: 4
children[2]:
type: 'disk'
id: 2
guid: 13705750593642370773
path: '/dev/gpt/D2-Z4ZARG1V'
whole_disk: 1
DTL: 70323
create_txg: 4
features_for_read:
com.delphix:hole_birth
com.delphix:embedded_data
zdb -AAA -F -X zroot
...
capacity operations bandwidth ---- errors ----
description used avail read write read write read write cksum
zroot 1.47T 3.97T 82 0 351K 0 0 0 30
raidz1 1.47T 3.97T 82 0 351K 0 0 0 121
/dev/gpt/D0-33GTM0VGS 27 0 146K 0 0 0 0
/dev/gpt/D1-Z1E3Q7KP 27 0 146K 0 0 0 0
/dev/gpt/D2-Z4ZARG1V 27 0 146K 0 0 0 0
...
Is it possible to somehow restore the pool or data?
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