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

[Fabian Keil]

Andriy Gapon <avg at FreeBSD.org> 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.

BTW, there's another (unrelated) spa_namespace_lock issue in spa_import_rootpool():
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=198563

Fabian
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