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Date:      Thu, 31 Aug 2017 07:39:48 +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-gbe0kJc6P6@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 #15 from Raimo Niskanen <raimo+freebsd@erix.ericsson.se> ---
(kgdb) p *mp->mnt_vnodecovered 
$2 = {
  v_tag = 0xffffffff80ea8ace "none", 
  v_op = 0xffffffff8148eb18, 
  v_data = 0x0, 
  v_mount = 0x0, 
  v_nmntvnodes = {
    tqe_next = 0xfffff801d028c588, 
    tqe_prev = 0xfffff80250a29d08
  }, 
  v_un = {
    vu_mount = 0x0, 
    vu_socket = 0x0, 
    vu_cdev = 0x0, 
    vu_fifoinfo = 0x0
  }, 
  v_hashlist = {
    le_next = 0x0, 
    le_prev = 0xfffffe0000b80be0
  }, 
  v_cache_src = {
    lh_first = 0x0
  }, 
  v_cache_dst = {
    tqh_first = 0x0, 
    tqh_last = 0xfffff8017144e5d8
  }, 
  v_cache_dd = 0x0, 
  v_lock = {
    lock_object = {
      lo_name = 0xffffffff81af1c7b "zfs", 
      lo_flags = 117112832, 
      lo_data = 0, 
      lo_witness = 0x0
    }, 
    lk_lock = 1, 
    lk_exslpfail = 0, 
    lk_timo = 51, 
    lk_pri = 96
  }, 
  v_interlock = {
    lock_object = {
      lo_name = 0xffffffff80fe4da3 "vnode interlock", 
      lo_flags = 16973824, 
      lo_data = 0, 
      lo_witness = 0x0
    }, 
    mtx_lock = 18446735278365454336
  }, 
  v_vnlock = 0xfffff8017144e5f0, 
  v_actfreelist = {
    tqe_next = 0xfffff801d028c588, 
    tqe_prev = 0xffffffff81623330
  }, 
  v_bufobj = {
    bo_lock = {
      lock_object = {
        lo_name = 0xffffffff80fe4db3 "bufobj interlock", 
        lo_flags = 86179840, 
        lo_data = 0, 
        lo_witness = 0x0
      }, 
      rw_lock = 1
    }, 
    bo_ops = 0xffffffff814b73e0, 
    bo_object = 0x0, 
    bo_synclist = {
      le_next = 0x0, 
      le_prev = 0x0
    }, 
    bo_private = 0xfffff8017144e588, 
    __bo_vnode = 0xfffff8017144e588, 
    bo_clean = {
      bv_hd = {
        tqh_first = 0x0, 
        tqh_last = 0xfffff8017144e6a8
      }, 
      bv_root = {
        pt_root = 0
      }, 
      bv_cnt = 0
    }, 
    bo_dirty = {
      bv_hd = {
        tqh_first = 0x0, 
        tqh_last = 0xfffff8017144e6c8
      }, 
      bv_root = {
        pt_root = 0
      }, 
      bv_cnt = 0
    }, 
    bo_numoutput = 0, 
    bo_flag = 0, 
    bo_bsize = 131072
  }, 
  v_pollinfo = 0x0, 
  v_label = 0x0, 
  v_lockf = 0x0, 
  v_rl = {
    rl_waiters = {
      tqh_first = 0x0, 
      tqh_last = 0xfffff8017144e710
    }, 
    rl_currdep = 0x0
  }, 
  v_cstart = 0, 
  v_lasta = 0, 
  v_lastw = 0, 
  v_clen = 0, 
  v_holdcnt = 1, 
  v_usecount = 0, 
  v_iflag = 0, 
  v_vflag = 0, 
  v_writecount = 0, 
  v_hash = 119749, 
  v_type = VBAD
}

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