tests/qemu-iotests/032

   1 #!/usr/bin/env bash
   2 #
   3 # Test that AIO requests are drained before an image is closed. This used
   4 # to segfault because the request coroutine kept running even after the
   5 # BlockDriverState was freed.
   6 #
   7 # Copyright (C) 2011 Red Hat, Inc.
   8 #
   9 # This program is free software; you can redistribute it and/or modify
  10 # it under the terms of the GNU General Public License as published by
  11 # the Free Software Foundation; either version 2 of the License, or
  12 # (at your option) any later version.
  13 #
  14 # This program is distributed in the hope that it will be useful,
  15 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  16 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17 # GNU General Public License for more details.
  18 #
  19 # You should have received a copy of the GNU General Public License
  20 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  21 #
  22
  23 # creator
  24 owner=kwolf@redhat.com
  25
  26 seq=`basename $0`
  27 echo "QA output created by $seq"
  28
  29 status=1        # failure is the default!
  30
  31 _cleanup()
  32 {
  33         _cleanup_test_img
  34 }
  35 trap "_cleanup; exit \$status" 0 1 2 3 15
  36
  37 # get standard environment, filters and checks
  38 . ./common.rc
  39 . ./common.filter
  40 . ./common.pattern
  41
  42 # This works for any image format (though unlikely to segfault for raw)
  43 _supported_fmt generic
  44 _supported_proto generic
  45
  46 echo
  47 echo === Prepare image ===
  48 echo
  49
  50 CLUSTER_SIZE=65536
  51 _make_test_img 64M
  52
  53 # Allocate every other cluster so that afterwards a big write request will
  54 # actually loop a while and issue many I/O requests for the lower layer
  55 for i in $(seq 0 128 4096); do echo "write ${i}k 64k"; done | $QEMU_IO "$TEST_IMG" | _filter_qemu_io
  56
  57 echo
  58 echo === AIO request during close ===
  59 echo
  60 $QEMU_IO -c "aio_write 0 4M" -c "close" "$TEST_IMG" | _filter_qemu_io
  61 _check_test_img
  62
  63 # success, all done
  64 echo "*** done"
  65 rm -f $seq.full
  66 status=0