[OpenIndiana-discuss] ZFS stalls with oi_151?
Bryan S. Leaman
leaman at bitbytes.com
Fri Oct 21 17:05:23 UTC 2011
On 10/21/2011 12:38 PM, Michael Stapleton wrote:
> I had similar hard lockups when I accidentally tried to delete a ZFS
> Volume while doing a ZFS send at the same time.
> There seems to be a missing lock.
> In the end I had to ensure that I did not run concurrent zfs commands.
> Are there any other ZFS commands hung at the same time?
I'm not sure if I'm facing the same issue as you and/or Tommy, but it
seems very similar.
When I experience the problem, it hangs everything that is trying to do
zfs I/O. I just reproduced it again a few minutes ago. I kick off a
zfs send | zfs recv, and as soon as a large zvol stream is completed and
it moves onto the next stream, all I/O stops. I agree it seems to be
some kind of locking issue, possibly related to zfs buffers (judging
from the stack trace). I can let the system run for days and as long as
I don't run a send|recv, it's fine. Seems like it's caused by something
in the send/recv not freeing a lock.
I'd be happy to provide anything I can to help track this down. It's
really becoming quite frustrating and it's preventing me from deploying
this system into my environment.
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