So it does appear that it is zpool that hangs, possibly during
resilvering (we lost a HDD at midnight, this what was started all this).
After boot:
x4500-02:~# zpool status -x
pool: zpool1
state: DEGRADED
status: One or more devices is currently being resilvered. The pool will
continue to function, possibly in a degraded state.
action: Wait for the resilver to complete.
scrub: resilver in progress, 11.10% done, 2h11m to go
config:
NAME STATE READ WRITE CKSUM
zpool1 DEGRADED 0 0 0
raidz1 ONLINE 0 0 0
[snip]
c7t3d0 ONLINE 0 0 0
replacing UNAVAIL 0 0 0 insufficient replicas
c8t3d0s0/o UNAVAIL 0 0 0 cannot open
c8t3d0 UNAVAIL 0 0 0 cannot open
raidz1 ONLINE 0 0 0
You can run zpool for about 4-5 minutes, then they start to hang. For
example, I tried to issue;
# zpool offline zpool1 c8t3d0
.. and the system stops z-responding.
# mdb -k
::ps!grep pool
R 732 722 732 662 0 0x4a004000 ffffffffb92a8030 zpool
> ffffffffb92a8030::walk thread|::findstack -v
stack pointer for thread fffffe85285d07e0: fffffe800283fc40
[ fffffe800283fc40 _resume_from_idle+0xf8() ]
fffffe800283fc70 swtch+0x12a()
fffffe800283fc90 cv_wait+0x68()
fffffe800283fcc0 spa_config_enter+0x50()
fffffe800283fce0 spa_vdev_enter+0x2a()
fffffe800283fd10 vdev_offline+0x29()
fffffe800283fd40 zfs_ioc_vdev_offline+0x58()
fffffe800283fd80 zfsdev_ioctl+0x13e()
fffffe800283fd90 cdev_ioctl+0x1d()
fffffe800283fdb0 spec_ioctl+0x50()
fffffe800283fde0 fop_ioctl+0x25()
fffffe800283fec0 ioctl+0xac()
fffffe800283ff10 sys_syscall32+0x101()
Similarly, nfs:
> ::ps!grep nfsd
R 548 1 548 548 1 0x42000000 ffffffffb92ad6d0 nfsd
> ffffffffb92ad6d0::walk thread|::findstack -v
stack pointer for thread ffffffff9af8e540: fffffe8001046cc0
[ fffffe8001046cc0 _resume_from_idle+0xf8() ]
fffffe8001046cf0 swtch+0x12a()
fffffe8001046d40 cv_wait_sig_swap_core+0x177()
fffffe8001046d50 cv_wait_sig_swap+0xb()
fffffe8001046da0 cv_waituntil_sig+0xd7()
fffffe8001046e50 poll_common+0x420()
fffffe8001046ec0 pollsys+0xbe()
fffffe8001046f10 sys_syscall32+0x101()
--
Jorgen Lundman | <[EMAIL PROTECTED]>
Unix Administrator | +81 (0)3 -5456-2687 ext 1017 (work)
Shibuya-ku, Tokyo | +81 (0)90-5578-8500 (cell)
Japan | +81 (0)3 -3375-1767 (home)
_______________________________________________
zfs-discuss mailing list
zfs-discuss@opensolaris.org
http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
