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Date:      Fri, 25 Aug 2017 12:43:41 +0000
From:      bugzilla-noreply@freebsd.org
To:        freebsd-bugs@FreeBSD.org
Subject:   [Bug 219935] Kernel panic in getnewvnode (possibly ZFS related)
Message-ID:  <bug-219935-8-uW0fg9IskH@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-219935-8@https.bugs.freebsd.org/bugzilla/>
References:  <bug-219935-8@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=219935

--- Comment #7 from Raimo Niskanen <raimo+freebsd@erix.ericsson.se> ---
Sorry.  Now I got it.

(kgdb) p *vp[0]->v_cache_dst.tqh_first
$7 = {
  nc_hash = {
    le_next = 0x0, 
    le_prev = 0xfffffe0000ebe650
  }, 
  nc_src = {
    le_next = 0x0, 
    le_prev = 0xfffff802cb689980
  }, 
  nc_dst = {
    tqe_next = 0x0, 
    tqe_prev = 0xfffff801ed8b0d38
  }, 
  nc_dvp = 0xfffff802cb689938, 
  nc_vp = 0xfffff801ed8b0ce8, 
  nc_flag = 0 '\0', 
  nc_nlen = 15 '\017', 
  nc_name = 0xfffff800178c6ac2 "msg-19872-1.txt"
}

What should I look for in the vnodes in this linked list?
(kgdb) p vp[0]->v_nmntvnodes.tqe_next
$8 = (struct vnode *) 0xfffff801eda4b938

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