svn commit: r285021 - head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs

[Glen Barber]

On Thu, Aug 06, 2015 at 04:17:23AM +0200, Pawel Jakub Dawidek wrote:
> On Mon, Aug 03, 2015 at 04:20:04PM +0300, Andriy Gapon wrote:
> > On 30/07/2015 10:24, K. Macy wrote:
> > > Just FYI this change introduces a deadlock with with the
> > > spa_namespace_lock. Mount will be holding this lock while trying to
> > > acquire the spa_namespace_lock. zfskern on the other hand holds the
> > > spa_namespace_lock when calling zfs_freebsd_access  which in turn
> > > tries to acquire the teardown lock.
> > 
> > I missed the fact that zpool.cache file is being written with spa_namespace_lock
> > held.
> > I'll try to either resolve the problem in the next day or I will revert the change.
> 
> FYI, I'm hitting this deadlock on my laptop. Reverting the change fixes
> the problem.
> 

Since it is now 3 days after "I'll try to either resolve the problem in
the next day or I will revert the change", my view is that this needs to
be reverted now, if it hasn't been done already.

Glen

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