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Bug #3899

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VERIFY failure at space_map.c:519

Added by Keith Wesolowski almost 9 years ago.

Status:
New
Priority:
Normal
Assignee:
-
Category:
zfs - Zettabyte File System
Start date:
2013-07-19
Due date:
% Done:

0%

Estimated time:
Difficulty:
Hard
Tags:
needs-triage
Gerrit CR:

Description

We observed this failure:

assertion failed: sm->sm_space total (0x382fa90200 0x382fa8f600), file: ..
/../common/fs/zfs/space_map.c, line: 519

at

ffffff01e8af2790 vpanic()
ffffff01e8af27e0 0xfffffffffba66d5d()
ffffff01e8af28c0 space_map_sync+0x358(ffffff4314312a60, 1, ffffff431434a8a0,
ffffff43155319c0, ffffff47d59a6830)
ffffff01e8af29b0 metaslab_condense+0x1bd(ffffff431434a880, 10ab77,
ffffff47d59a6830)
ffffff01e8af2a40 metaslab_sync+0x1e7(ffffff431434a880, 10ab77)
ffffff01e8af2aa0 vdev_sync+0x7f(ffffff4312ed5700, 10ab77)
ffffff01e8af2b70 spa_sync+0x3bb(ffffff4314515580, 10ab77)
ffffff01e8af2c20 txg_sync_thread+0x20f(ffffff4315531cc0)
ffffff01e8af2c30 thread_start+8()

The only threads that ::stack -m zfs finds that are likely causing this txg to be synced out are:

ffffff43fea9f100 SLEEP CV 2
swtch+0x141
cv_wait+0x70
txg_wait_synced+0x83
dsl_sync_task+0x187
dsl_dataset_rollback+0x28
zfs_ioc_rollback+0x68
zfsdev_ioctl+0x4a7
cdev_ioctl+0x39
spec_ioctl+0x60
fop_ioctl+0x55
ioctl+0x9b
_sys_sysenter_post_swapgs+0x149

THREAD STATE SOBJ COUNT
ffffff4350c633a0 SLEEP CV 5
swtch+0x141
cv_wait+0x70
txg_wait_synced+0x83
zil_create+0xfa
zil_commit_writer+0x1a8
zil_commit+0x9e
zfs_fsync+0xb9
fop_fsync+0x44
fifo_fsync+0x8d
fifo_inactive+0x90
fop_inactive+0x76
vn_rele+0x82
cstatat32+0x9f
fstatat32+0x42
stat32+0x22
_sys_sysenter_post_swapgs+0x149

Crash dump is available to persons known to Joyent for further diagnosis.

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