qemu-iotest: add test for blockjob coroutine race condition

#!/bin/bash

#

# Block job co-routine race condition test.

#

# See: https://bugzilla.redhat.com/show_bug.cgi?id=1508708

#

# Copyright (C) 2017 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=jcody@redhat.com

seq=`basename $0`

echo "QA output created by $seq"

here=`pwd`

status=1    # failure is the default!

_cleanup()

{

    _cleanup_qemu

    rm -f "${TEST_IMG}" "${BACKING_IMG}"

}

trap "_cleanup; exit \$status" 0 1 2 3 15

# get standard environment, filters and checks

. ./common.rc

. ./common.filter

. ./common.qemu

_supported_fmt qcow2 qed

_supported_proto file

_supported_os Linux

BACKING_IMG="${TEST_DIR}/backing.img"

TEST_IMG="${TEST_DIR}/test.img"

${QEMU_IMG} create -f $IMGFMT "${BACKING_IMG}" 512M | _filter_img_create

${QEMU_IMG} create -f $IMGFMT -F $IMGFMT "${TEST_IMG}" -b "${BACKING_IMG}" 512M | _filter_img_create

${QEMU_IO} -c "write -P 0xa5 512 300M" "${BACKING_IMG}" | _filter_qemu_io

echo

echo === Starting QEMU VM ===

echo

qemu_comm_method="qmp"

_launch_qemu -device pci-bridge,id=bridge1,chassis_nr=1,bus=pci.0 \

             -object iothread,id=iothread0 \

             -device virtio-scsi-pci,bus=bridge1,addr=0x1f,id=scsi0,iothread=iothread0 \

             -drive file="${TEST_IMG}",media=disk,if=none,cache=none,id=drive_sysdisk,aio=native,format=$IMGFMT \

             -device scsi-hd,drive=drive_sysdisk,bus=scsi0.0,id=sysdisk,bootindex=0

h1=$QEMU_HANDLE

_send_qemu_cmd $h1 "{ 'execute': 'qmp_capabilities' }" 'return'

echo

echo === Sending stream/cancel, checking for SIGSEGV only  ===

echo

for (( i=1;i<500;i++ ))

do

    mismatch_only='y' qemu_error_no_exit='n' _send_qemu_cmd $h1 \

                       "{

                            'execute': 'block-stream',

                            'arguments': {

                                'device': 'drive_sysdisk',

                                'speed': 10000000,

                                'on-error': 'report',

                                'job-id': 'job-$i'

                             }

                        }

                        {

                            'execute': 'block-job-cancel',

                            'arguments': {

                                'device': 'job-$i'

                             }

                        }" \

                       "{.*{.*}.*}"  # should match all well-formed QMP responses

done

silent='y' _send_qemu_cmd $h1  "{ 'execute': 'quit' }" 'return'

echo "$i iterations performed"

echo "*** done"

rm -f $seq.full

status=0

QA output created by 200

Formatting 'TEST_DIR/backing.img', fmt=IMGFMT size=536870912

Formatting 'TEST_DIR/test.img', fmt=IMGFMT size=536870912 backing_file=TEST_DIR/backing.img backing_fmt=IMGFMT

wrote 314572800/314572800 bytes at offset 512

300 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

=== Starting QEMU VM ===

{"return": {}}

=== Sending stream/cancel, checking for SIGSEGV only ===

500 iterations performed

*** done

196 rw auto quick

197 rw auto quick

198 rw auto

200 rw auto