kern/142563: ioctl freeze in zpool

shinsui dick at nagual.nl
Fri Aug 13 07:27:47 UTC 2010



Alt-3 wrote:
> 
>>Description:
> zfs's zpool utility freezes on ioctl call on rare situtions:
> # zpool status
> Jan 10 10:16:33  root: ZFS: vdev failure, zpool=test type=vdev.bad_label
> Jan 10 10:16:33  root: ZFS: vdev failure, zpool=test type=vdev.bad_label
> 
> Issue leads to zfs pools become uncontrollable, since zpool's commands
> status,import,export,destroy not working now. I tried to trackdown issue -
> it leads to kernel ioctl call (i dont have any experience with kernel
> dev):
> 

I can/must confirm this happens on my FreeBSD/amd64 machine too. It seems to
create the zpool and it seems healthy, but as soon as I want to do something
with it (like zpool scrub polname) it freezes and after rebooting my system
the zpool is corrupt and can only be destroyed. ZFS is unusable this way ;-(
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