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Date:      Sat, 15 Jun 2019 10:52:29 +0000
From:      bugzilla-noreply@freebsd.org
To:        fs@FreeBSD.org
Subject:   [Bug 231211] [zfs] possible deadlock triggered by zfs test suite
Message-ID:  <bug-231211-3630-6fgglVwSGK@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-231211-3630@https.bugs.freebsd.org/bugzilla/>
References:  <bug-231211-3630@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D231211

Stefan Rink <stefanrink@yahoo.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |stefanrink@yahoo.com

--- Comment #2 from Stefan Rink <stefanrink@yahoo.com> ---
I hit this bug on a bhyve with UFS filesystem on 13-current!

 thread 100377 (pid 36752, sh) blocked on lockmgr ufsEXCL
 thread 100078 (pid 22, syncer) blocked on lockmgr bufwaitEXCL

It's still in KDB but I can only access the console via VNC so can't copy/p=
aste
text, dump it or make screenshots.

Trace of the sh process that started this;
sched_switch()
mi_switch()
sleepq_switch()
sleepq_wait()
sleeplk()
lockmgr_slock_hard()
__lockmgr_args()
ffs_lock()
VOP_LOCK1_APV()
_vn_lock()
vget()
cache_lookup()
vfs_cache_lookup()
VOP_LOOKUP_APV()
lookup()
namei()
vn_open_cred()
kern_openat()
amd64_syscall() -=20




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