8.0RC1, ZFS: deadlock

[Borja Marcos]

On Sep 29, 2009, at 10:29 AM, Borja Marcos wrote:

> I have observed a deadlock condition when using ZFS. We are making a  
> heavy usage of zfs send/zfs receive to keep a replica of a dataset  
> on a remote machine. It can be done at one minute intervals. Maybe  
> we're doing a somehow atypical usage of ZFS, but, well, seems to be  
> a great solution to keep filesystem replicas once this is sorted out.

Not sure the backtraces screenshots will get through...

First one is the backtrace for the zfs command.

Second one, a tar process doing a "cf - ." on the dataset being  
replicated, sending to a pipe.

Third one, the receiving tar process, doing an "xf -" on a second  
dataset.

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