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Date:      Fri, 23 Mar 2018 01:00:28 +0000
From:      Shiva Bhanujan <Shiva.Bhanujan@Quorum.com>
To:        "freebsd-fs@freebsd.org" <freebsd-fs@freebsd.org>
Subject:   FreeBSD 10.3: core dump on zfs destroy
Message-ID:  <3A5A10BE32AC9E45B4A22F89FC90EC0701C369B335@QLEXC01.Quorum.local>

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Hello,

On a FreeBSD 10.3 system, I'm getting a core dump on zfs destroy.

[root@FreeBSD_10_3 ~]#
[root@FreeBSD_10_3 ~]# zfs create zroot/fs
[root@FreeBSD_10_3 ~]#
[root@FreeBSD_10_3 ~]# zfs destroy zroot/fs
Assertion failed: (avl_find() succeeded inside avl_add()), file /usr/src/cddl/lib/libuutil/../../../sys/cddl/contrib/opensolaris/common/avl/avl.c, line 649.
Abort trap (core dumped)
[root@FreeBSD_10_3 ~]#
[root@FreeBSD_10_3 ~]# uname -a
FreeBSD FreeBSD_10_3.quorum.net 10.3-RELEASE-p27 FreeBSD 10.3-RELEASE-p27 #11 r330622M: Wed Mar  7 15:00:14 PST 2018     root@Filer-31-232.quorum.net:/usr/obj/usr/src/sys/QUORUM  amd64
[root@FreeBSD_10_3 ~]#


I believe this is the same issue that was reported in https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=196533.  The backtrace using gdb does look the same.  I've tried the same on different pools on the same server, but I keep seeing the same error.

I can send the core file, if requested.    Can somebody give some insights into what this might be?

Regards,
Shiva


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