qemu-iotests: Test bdrv_close while AIO is in flight
If the BlockDriverState is closed/freed without draining the AIO requests first, the request coroutines may work on invalid data and file descriptors or have some dangling pointers that cause segfaults. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Kevin Wolf
parent
7299550b25
commit
aafcdcc9eb
|
|
@ -0,0 +1,69 @@
|
|||
#!/bin/bash
|
||||
#
|
||||
# Test that AIO requests are drained before an image is closed. This used
|
||||
# to segfault because the request coroutine kept running even after the
|
||||
# BlockDriverState was freed.
|
||||
#
|
||||
# Copyright (C) 2011 Red Hat, Inc.
|
||||
#
|
||||
# This program is free software; you can redistribute it and/or modify
|
||||
# it under the terms of the GNU General Public License as published by
|
||||
# the Free Software Foundation; either version 2 of the License, or
|
||||
# (at your option) any later version.
|
||||
#
|
||||
# This program is distributed in the hope that it will be useful,
|
||||
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
# GNU General Public License for more details.
|
||||
#
|
||||
# You should have received a copy of the GNU General Public License
|
||||
# along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||
#
|
||||
|
||||
# creator
|
||||
owner=kwolf@redhat.com
|
||||
|
||||
seq=`basename $0`
|
||||
echo "QA output created by $seq"
|
||||
|
||||
here=`pwd`
|
||||
tmp=/tmp/$$
|
||||
status=1 # failure is the default!
|
||||
|
||||
_cleanup()
|
||||
{
|
||||
_cleanup_test_img
|
||||
}
|
||||
trap "_cleanup; exit \$status" 0 1 2 3 15
|
||||
|
||||
# get standard environment, filters and checks
|
||||
. ./common.rc
|
||||
. ./common.filter
|
||||
. ./common.pattern
|
||||
|
||||
# This works for any image format (though unlikely to segfault for raw)
|
||||
_supported_fmt generic
|
||||
_supported_proto generic
|
||||
_supported_os Linux
|
||||
|
||||
echo
|
||||
echo === Prepare image ===
|
||||
echo
|
||||
|
||||
CLUSTER_SIZE=65536
|
||||
_make_test_img 64M
|
||||
|
||||
# Allocate every other cluster so that afterwards a big write request will
|
||||
# actually loop a while and issue many I/O requests for the lower layer
|
||||
for i in $(seq 0 128 4096); do echo "write ${i}k 64k"; done | $QEMU_IO $TEST_IMG | _filter_qemu_io
|
||||
|
||||
echo
|
||||
echo === AIO request during close ===
|
||||
echo
|
||||
$QEMU_IO -c "aio_write 0 4M" -c "close" $TEST_IMG | _filter_qemu_io
|
||||
_check_test_img
|
||||
|
||||
# success, all done
|
||||
echo "*** done"
|
||||
rm -f $seq.full
|
||||
status=0
|
||||
|
|
@ -0,0 +1,78 @@
|
|||
QA output created by 032
|
||||
|
||||
=== Prepare image ===
|
||||
|
||||
Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864
|
||||
qemu-io> wrote 65536/65536 bytes at offset 0
|
||||
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
|
||||
qemu-io> wrote 65536/65536 bytes at offset 131072
|
||||
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
|
||||
qemu-io> wrote 65536/65536 bytes at offset 262144
|
||||
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
|
||||
qemu-io> wrote 65536/65536 bytes at offset 393216
|
||||
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
|
||||
qemu-io> wrote 65536/65536 bytes at offset 524288
|
||||
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
|
||||
qemu-io> wrote 65536/65536 bytes at offset 655360
|
||||
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
|
||||
qemu-io> wrote 65536/65536 bytes at offset 786432
|
||||
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
|
||||
qemu-io> wrote 65536/65536 bytes at offset 917504
|
||||
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
|
||||
qemu-io> wrote 65536/65536 bytes at offset 1048576
|
||||
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
|
||||
qemu-io> wrote 65536/65536 bytes at offset 1179648
|
||||
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
|
||||
qemu-io> wrote 65536/65536 bytes at offset 1310720
|
||||
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
|
||||
qemu-io> wrote 65536/65536 bytes at offset 1441792
|
||||
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
|
||||
qemu-io> wrote 65536/65536 bytes at offset 1572864
|
||||
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
|
||||
qemu-io> wrote 65536/65536 bytes at offset 1703936
|
||||
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
|
||||
qemu-io> wrote 65536/65536 bytes at offset 1835008
|
||||
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
|
||||
qemu-io> wrote 65536/65536 bytes at offset 1966080
|
||||
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
|
||||
qemu-io> wrote 65536/65536 bytes at offset 2097152
|
||||
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
|
||||
qemu-io> wrote 65536/65536 bytes at offset 2228224
|
||||
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
|
||||
qemu-io> wrote 65536/65536 bytes at offset 2359296
|
||||
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
|
||||
qemu-io> wrote 65536/65536 bytes at offset 2490368
|
||||
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
|
||||
qemu-io> wrote 65536/65536 bytes at offset 2621440
|
||||
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
|
||||
qemu-io> wrote 65536/65536 bytes at offset 2752512
|
||||
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
|
||||
qemu-io> wrote 65536/65536 bytes at offset 2883584
|
||||
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
|
||||
qemu-io> wrote 65536/65536 bytes at offset 3014656
|
||||
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
|
||||
qemu-io> wrote 65536/65536 bytes at offset 3145728
|
||||
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
|
||||
qemu-io> wrote 65536/65536 bytes at offset 3276800
|
||||
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
|
||||
qemu-io> wrote 65536/65536 bytes at offset 3407872
|
||||
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
|
||||
qemu-io> wrote 65536/65536 bytes at offset 3538944
|
||||
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
|
||||
qemu-io> wrote 65536/65536 bytes at offset 3670016
|
||||
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
|
||||
qemu-io> wrote 65536/65536 bytes at offset 3801088
|
||||
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
|
||||
qemu-io> wrote 65536/65536 bytes at offset 3932160
|
||||
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
|
||||
qemu-io> wrote 65536/65536 bytes at offset 4063232
|
||||
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
|
||||
qemu-io> wrote 65536/65536 bytes at offset 4194304
|
||||
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
|
||||
qemu-io>
|
||||
=== AIO request during close ===
|
||||
|
||||
wrote 4194304/4194304 bytes at offset 0
|
||||
4 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
|
||||
No errors were found on the image.
|
||||
*** done
|
||||
|
|
@ -38,3 +38,4 @@
|
|||
029 rw auto quick
|
||||
030 rw auto
|
||||
031 rw auto quick
|
||||
032 rw auto
|
||||
|
|
|
|||
Loading…
Reference in New Issue