qemu-iotests: More qcow2 reopen tests

#!/bin/bash

#

# Test qcow2 reopen

#

# Copyright (C) 2015 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.qemu

_supported_fmt qcow2

_supported_proto generic

_supported_os Linux

_make_test_img 64M

echo === Try setting valid values for all options ===

echo

# Try all options and then check that all of the basic I/O operations still

# work on this image.

$QEMU_IO \

    -c "reopen -o lazy-refcounts=on,pass-discard-request=on" \

    -c "reopen -o lazy-refcounts=off,pass-discard-request=off" \

    -c "reopen -o pass-discard-snapshot=on,pass-discard-other=on" \

    -c "reopen -o pass-discard-snapshot=off,pass-discard-other=off" \

    -c "reopen -o overlap-check=all" \

    -c "reopen -o overlap-check=none" \

    -c "reopen -o overlap-check=cached" \

    -c "reopen -o overlap-check=constant" \

    -c "reopen -o overlap-check.template=all" \

    -c "reopen -o overlap-check.template=none" \

    -c "reopen -o overlap-check.template=cached" \

    -c "reopen -o overlap-check.template=constant" \

    -c "reopen -o overlap-check.main-header=on" \

    -c "reopen -o overlap-check.main-header=off" \

    -c "reopen -o overlap-check.active-l1=on" \

    -c "reopen -o overlap-check.active-l1=off" \

    -c "reopen -o overlap-check.active-l2=on" \

    -c "reopen -o overlap-check.active-l2=off" \

    -c "reopen -o overlap-check.refcount-table=on" \

    -c "reopen -o overlap-check.refcount-table=off" \

    -c "reopen -o overlap-check.refcount-block=on" \

    -c "reopen -o overlap-check.refcount-block=off" \

    -c "reopen -o overlap-check.snapshot-table=on" \

    -c "reopen -o overlap-check.snapshot-table=off" \

    -c "reopen -o overlap-check.inactive-l1=on" \

    -c "reopen -o overlap-check.inactive-l1=off" \

    -c "reopen -o overlap-check.inactive-l2=on" \

    -c "reopen -o overlap-check.inactive-l2=off" \

    -c "reopen -o cache-size=1M" \

    -c "reopen -o l2-cache-size=512k" \

    -c "reopen -o refcount-cache-size=128k" \

    -c "reopen -o cache-clean-interval=5" \

    -c "reopen -o cache-clean-interval=0" \

    -c "reopen -o cache-clean-interval=10" \

    \

    -c "write -P 55 0 32M" \

    -c "read -P 55 0 32M" \

    -c "discard 0 32M" \

    -c "write -z 0 32M" \

    -c "read -P 0 0 32M" \

    \

    "$TEST_IMG" | _filter_qemu_io

echo

echo === Try setting some invalid values ===

echo

$QEMU_IO \

    -c "reopen -o lazy-refcounts=42" \

    -c "reopen -o cache-size=1M,l2-cache-size=64k,refcount-cache-size=64k" \

    -c "reopen -o cache-size=1M,l2-cache-size=2M" \

    -c "reopen -o cache-size=1M,refcount-cache-size=2M" \

    -c "reopen -o l2-cache-size=256T" \

    -c "reopen -o refcount-cache-size=256T" \

    -c "reopen -o overlap-check=constant,overlap-check.template=all" \

    -c "reopen -o overlap-check=blubb" \

    -c "reopen -o overlap-check.template=blubb" \

    -c "reopen -o cache-clean-interval=-1" \

    "$TEST_IMG" | _filter_qemu_io

echo

echo === Test transaction semantics ===

echo

# Whether lazy-refcounts was actually enabled can easily be tested: Check if

# the dirty bit is set after a crash

$QEMU_IO \

    -c "reopen -o lazy-refcounts=on,overlap-check=blubb" \

    -c "write -P 0x5a 0 512" \

    -c "sigraise $(kill -l KILL)" \

    "$TEST_IMG" 2>&1 | _filter_qemu_io

# The dirty bit must not be set

$PYTHON qcow2.py "$TEST_IMG" dump-header | grep incompatible_features

# Similarly we can test whether corruption detection has been enabled:

# Create L1/L2, overwrite first entry in refcount block, allocate something.

# Disabling the checks should fail, so the corruption must be detected.

_make_test_img 64M

$QEMU_IO -c "write 0 64k" "$TEST_IMG" | _filter_qemu_io

poke_file "$TEST_IMG" "$((0x20000))" "\x00\x00"

$QEMU_IO \

    -c "reopen -o overlap-check=none,lazy-refcounts=42" \

    -c "write 64k 64k" \

    "$TEST_IMG" 2>&1 | _filter_qemu_io

# success, all done

echo '*** done'

rm -f $seq.full

status=0

QA output created by 137

Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864

=== Try setting valid values for all options ===

wrote 33554432/33554432 bytes at offset 0

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

read 33554432/33554432 bytes at offset 0

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

discard 33554432/33554432 bytes at offset 0

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

wrote 33554432/33554432 bytes at offset 0

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

read 33554432/33554432 bytes at offset 0

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

=== Try setting some invalid values ===

Parameter 'lazy-refcounts' expects 'on' or 'off'

cache-size, l2-cache-size and refcount-cache-size may not be set the same time

l2-cache-size may not exceed cache-size

refcount-cache-size may not exceed cache-size

L2 cache size too big

L2 cache size too big

Conflicting values for qcow2 options 'overlap-check' ('constant') and 'overlap-check.template' ('all')

Unsupported value 'blubb' for qcow2 option 'overlap-check'. Allowed are any of the following: none, constant, cached, all

Unsupported value 'blubb' for qcow2 option 'overlap-check'. Allowed are any of the following: none, constant, cached, all

Cache clean interval too big

=== Test transaction semantics ===

Unsupported value 'blubb' for qcow2 option 'overlap-check'. Allowed are any of the following: none, constant, cached, all

wrote 512/512 bytes at offset 0

512 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

./common.config: Killed                  ( exec "$QEMU_IO_PROG" $QEMU_IO_OPTIONS "$@" )

incompatible_features     0x0

Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864

wrote 65536/65536 bytes at offset 0

64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

Parameter 'lazy-refcounts' expects 'on' or 'off'

qcow2: Marking image as corrupt: Preventing invalid write on metadata (overlaps with qcow2_header); further corruption events will be suppressed

write failed: Input/output error

*** done

132 rw auto quick

134 rw auto quick

135 rw auto

137 rw auto