Many processes stuck in zfs
Pawel Jakub Dawidek
pjd at FreeBSD.org
Wed Mar 10 12:56:48 UTC 2010
On Wed, Mar 10, 2010 at 01:32:02PM +0100, Borja Marcos wrote:
> Trying. I started my typical test:
> Machine 1 doing a make buildworld on a dataset with src and obj on it.
> Machine 1 replicating incremental snapshots of the dataset to machine 2.
> Machine 2 running some "tar cf - . | ( cd /pool/anotherdataset && tar xf - )" from the dataset being replicated, ie, doing read operations on the target dataset.
> This time, with all those debug options, there was no deadlock, but almost an instant trap entering DDB. Unfortunately, I tried to capture the output of "alltrace", etc using the capture option. But couldn't come back to the system to read it.
> Any ideas? I'm using VMWare Fusion to run FreeBSD for these tests and seems I'm out of luck, I don't see any console output mechanism.
You should be able to use text dumps to capture output of those commands
Pawel Jakub Dawidek http://www.wheelsystems.com
pjd at FreeBSD.org http://www.FreeBSD.org
FreeBSD committer Am I Evil? Yes, I Am!
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