bin/170778: [zfs] FreeBSD panics randomly

[Eugene M. Zheganin]

>Number:         170778
>Category:       bin
>Synopsis:       [zfs] FreeBSD panics randomly
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Mon Aug 20 07:30:08 UTC 2012
>Closed-Date:
>Last-Modified:
>Originator:     Eugene M. Zheganin
>Release:        9.1-PRERELEASE
>Organization:
Vivat-Trade LLC
>Environment:
FreeBSD taiga 9.1-PRERELEASE FreeBSD 9.1-PRERELEASE #0: Fri Aug 17 13:55:19 YEKT 2012     emz at taiga:/usr/obj/usr/src/sys/TAIGADBG  amd64
>Description:
FreeBSD hangs at a random point in time, silentlty. Booting a kernel with INVARIANTS/WITNESS gives a panic (sorry for the image instead of just text, I have only kvm working at this time):

http://unix.zhegan.in/files/bt0.jpg
>How-To-Repeat:

>Fix:


>Release-Note:
>Audit-Trail:
>Unformatted: