test/stress/stress2/misc/snap7.sh

   1 #!/bin/sh
   2
   3 #
   4 # Copyright (c) 2008 Peter Holm <pho@FreeBSD.org>
   5 # All rights reserved.
   6 #
   7 # Redistribution and use in source and binary forms, with or without
   8 # modification, are permitted provided that the following conditions
   9 # are met:
  10 # 1. Redistributions of source code must retain the above copyright
  11 #    notice, this list of conditions and the following disclaimer.
  12 # 2. Redistributions in binary form must reproduce the above copyright
  13 #    notice, this list of conditions and the following disclaimer in the
  14 #    documentation and/or other materials provided with the distribution.
  15 #
  16 # THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  17 # ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  18 # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  19 # ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  20 # FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  21 # DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  22 # OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  23 # HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  24 # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  25 # OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  26 # SUCH DAMAGE.
  27 #
  28 # $FreeBSD$
  29 #
  30
  31 [ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1
  32
  33 # Test with unmount and paralless access to mountpoint
  34 # 20070508 page fault in g_io_request+0xa6
  35
  36 mount | grep "/dev/md0 on /mnt" > /dev/null && umount /mnt
  37 rm -f /tmp/.snap/pho.1
  38 trap "rm -f /tmp/.snap/pho.1" 0
  39 mount | grep "/mnt" | grep md0 > /dev/null && umount /mnt
  40 mdconfig -l | grep -q md0 &&  mdconfig -d -u 0
  41
  42 for i in `jot 64`; do
  43    mksnap_ffs /tmp /tmp/.snap/pho.1
  44    mdconfig -a -t vnode -f /tmp/.snap/pho.1 -u 0 -o readonly
  45    sh -c "while true; do ls /mnt > /dev/null;done" &
  46    for i in `jot 64`; do
  47       mount -o ro /dev/md0 /mnt
  48       umount /mnt
  49    done
  50    kill $!
  51    mdconfig -d -u 0
  52    rm -f /tmp/.snap/pho.1
  53 done