f6c8c2e055
Commit 934659c switched the iotests to run qemu and qemu-nbd from a bash
subshell, in order to catch segfaults. Unfortunately, this means the
process PID cannot be captured via '$!'. We stopped killing qemu and
qemu-nbd processes, leaving a lot of orphaned, running qemu processes
after executing iotests.
Since the process is using exec in the subshell, the PID is the
same as the subshell PID.
Track these PIDs for cleanup using pidfiles in the $TEST_DIR. Only
track the qemu PID, however, if requested - not all usage requires
killing the process.
Reported-by: John Snow <jsnow@redhat.com>
Signed-off-by: Jeff Cody <jcody@redhat.com>
Message-id: 9e4f958b3895b7259b98d845bb46f000ba362869.1446232490.git.jcody@redhat.com
[mreitz@redhat.com: Replaced '! -z "..."' by '-n "..."']
Signed-off-by: Max Reitz <mreitz@redhat.com>
149 lines
4.1 KiB
Bash
Executable File
149 lines
4.1 KiB
Bash
Executable File
#!/bin/bash
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#
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# Test export internal snapshot by qemu-nbd, convert it by qemu-img.
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#
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# Copyright (C) 2013 IBM, Inc.
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#
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# Based on 029.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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# creator
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owner=xiawenc@linux.vnet.ibm.com
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seq=`basename $0`
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echo "QA output created by $seq"
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here=`pwd`
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tmp=/tmp/$$
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status=1 # failure is the default!
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nbd_unix_socket=$TEST_DIR/test_qemu_nbd_socket
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nbd_snapshot_img="nbd:unix:$nbd_unix_socket"
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rm -f "${TEST_DIR}/qemu-nbd.pid"
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_cleanup_nbd()
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{
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local NBD_SNAPSHOT_PID
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if [ -f "${TEST_DIR}/qemu-nbd.pid" ]; then
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read NBD_SNAPSHOT_PID < "${TEST_DIR}/qemu-nbd.pid"
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rm -f "${TEST_DIR}/qemu-nbd.pid"
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if [ -n "$NBD_SNAPSHOT_PID" ]; then
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kill "$NBD_SNAPSHOT_PID"
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fi
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fi
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rm -f "$nbd_unix_socket"
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}
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_wait_for_nbd()
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{
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for ((i = 0; i < 300; i++))
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do
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if [ -r "$nbd_unix_socket" ]; then
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return
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fi
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sleep 0.1
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done
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echo "Failed in check of unix socket created by qemu-nbd"
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exit 1
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}
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converted_image=$TEST_IMG.converted
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_export_nbd_snapshot()
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{
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_cleanup_nbd
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$QEMU_NBD -v -t -k "$nbd_unix_socket" "$TEST_IMG" -l $1 &
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_wait_for_nbd
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}
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_export_nbd_snapshot1()
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{
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_cleanup_nbd
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$QEMU_NBD -v -t -k "$nbd_unix_socket" "$TEST_IMG" -l snapshot.name=$1 &
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_wait_for_nbd
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}
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_cleanup()
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{
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_cleanup_nbd
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_cleanup_test_img
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rm -f "$converted_image"
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}
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trap "_cleanup; exit \$status" 0 1 2 3 15
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# get standard environment, filters and checks
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. ./common.rc
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. ./common.filter
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. ./common.pattern
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_supported_fmt qcow2
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_supported_proto file
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_supported_os Linux
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_require_command QEMU_NBD
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# Internal snapshots are (currently) impossible with refcount_bits=1
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_unsupported_imgopts 'refcount_bits=1[^0-9]'
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# Use -f raw instead of -f $IMGFMT for the NBD connection
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QEMU_IO_NBD="$QEMU_IO -f raw --cache=$CACHEMODE"
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echo
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echo "== preparing image =="
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_make_test_img 64M
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$QEMU_IO -c 'write -P 0xa 0x1000 0x1000' "$TEST_IMG" | _filter_qemu_io
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$QEMU_IO -c 'write -P 0xb 0x2000 0x1000' "$TEST_IMG" | _filter_qemu_io
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$QEMU_IMG snapshot -c sn1 "$TEST_IMG"
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$QEMU_IO -c 'write -P 0xc 0x1000 0x1000' "$TEST_IMG" | _filter_qemu_io
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$QEMU_IO -c 'write -P 0xd 0x2000 0x1000' "$TEST_IMG" | _filter_qemu_io
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_check_test_img
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echo
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echo "== verifying the image file with patterns =="
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$QEMU_IO -c 'read -P 0xc 0x1000 0x1000' "$TEST_IMG" | _filter_qemu_io
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$QEMU_IO -c 'read -P 0xd 0x2000 0x1000' "$TEST_IMG" | _filter_qemu_io
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_export_nbd_snapshot sn1
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echo
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echo "== verifying the exported snapshot with patterns, method 1 =="
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$QEMU_IO_NBD -c 'read -P 0xa 0x1000 0x1000' "$nbd_snapshot_img" | _filter_qemu_io
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$QEMU_IO_NBD -c 'read -P 0xb 0x2000 0x1000' "$nbd_snapshot_img" | _filter_qemu_io
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_export_nbd_snapshot1 sn1
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echo
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echo "== verifying the exported snapshot with patterns, method 2 =="
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$QEMU_IO_NBD -c 'read -P 0xa 0x1000 0x1000' "$nbd_snapshot_img" | _filter_qemu_io
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$QEMU_IO_NBD -c 'read -P 0xb 0x2000 0x1000' "$nbd_snapshot_img" | _filter_qemu_io
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$QEMU_IMG convert "$TEST_IMG" -l sn1 -O qcow2 "$converted_image"
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echo
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echo "== verifying the converted snapshot with patterns, method 1 =="
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$QEMU_IO -c 'read -P 0xa 0x1000 0x1000' "$converted_image" | _filter_qemu_io
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$QEMU_IO -c 'read -P 0xb 0x2000 0x1000' "$converted_image" | _filter_qemu_io
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$QEMU_IMG convert "$TEST_IMG" -l snapshot.name=sn1 -O qcow2 "$converted_image"
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echo
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echo "== verifying the converted snapshot with patterns, method 2 =="
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$QEMU_IO -c 'read -P 0xa 0x1000 0x1000' "$converted_image" | _filter_qemu_io
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$QEMU_IO -c 'read -P 0xb 0x2000 0x1000' "$converted_image" | _filter_qemu_io
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# success, all done
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echo "*** done"
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rm -f $seq.full
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status=0
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