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Date:      Wed, 20 Apr 2016 15:36:39 +0000
From:      bugzilla-noreply@freebsd.org
To:        freebsd-amd64@FreeBSD.org
Subject:   [Bug 207464] Panic when destroying ZFS snapshot on boot filesystem
Message-ID:  <bug-207464-6-ipM9AvQWhI@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-207464-6@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=207464

--- Comment #9 from Howard Powell <hpowell@lighthouseinstruments.com> ---
I've replicated this issue with a non-boot zfs filesystem on 10.3-RELEASE.

zpool create foo /dev/ada1
mkdir /foo/bar

zfs snapshot foo@working-copy
ls -d /foo/.zfs/snapshot/working-copy/bar
zfs destroy foo@working-copy

Output is 
panic: vputx: negative ref cnt

followed by a dump and reboot.  I've uploaded the vmcore.txt that was generated
by this bug.

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