Archipelago » qemu

#!/bin/bash

#

# Test concurrent pread/pwrite

#

# Copyright (C) 2014 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

_supported_fmt raw

_supported_proto generic

_supported_os Linux

CLUSTER_SIZE=4k

size=128M

_make_test_img $size

echo

echo "== Some concurrent requests involving RMW =="

function test_io()

{

echo "open -o file.align=4k blkdebug::$TEST_IMG"

# A simple RMW request

cat  <<EOF

aio_write -P 10 0x200 0x200

aio_flush

EOF

# Sequential RMW requests on the same physical sector

off=0x1000

for ev in "head" "after_head" "tail" "after_tail"; do

cat  <<EOF

break pwritev_rmw.$ev A

aio_write -P 10 $((off + 0x200)) 0x200

wait_break A

aio_write -P 11 $((off + 0x400)) 0x200

sleep 100

resume A

aio_flush

EOF

off=$((off + 0x1000))

done

# Chained dependencies

cat  <<EOF

break pwritev_rmw.after_tail A

aio_write -P 10 0x5000 0x200

wait_break A

aio_write -P 11 0x5200 0x200

aio_write -P 12 0x5400 0x200

aio_write -P 13 0x5600 0x200

aio_write -P 14 0x5800 0x200

aio_write -P 15 0x5a00 0x200

aio_write -P 16 0x5c00 0x200

aio_write -P 17 0x5e00 0x200

sleep 100

resume A

aio_flush

EOF

# Overlapping multiple requests

cat  <<EOF

break pwritev_rmw.after_tail A

aio_write -P 10 0x6000 0x200

wait_break A

break pwritev_rmw.after_head B

aio_write -P 10 0x7e00 0x200

wait_break B

aio_write -P 11 0x6800 0x1000

resume A

sleep 100

resume B

aio_flush

EOF

cat  <<EOF

break pwritev_rmw.after_tail A

aio_write -P 10 0x8000 0x200

wait_break A

break pwritev_rmw.after_head B

aio_write -P 10 0x9e00 0x200

wait_break B

aio_write -P 11 0x8800 0x1000

resume B

sleep 100

resume A

aio_flush

EOF

cat  <<EOF

break pwritev_rmw.after_tail A

aio_write -P 10 0xa000 0x200

wait_break A

aio_write -P 11 0xa800 0x1000

break pwritev_rmw.after_head B

aio_write -P 10 0xbe00 0x200

wait_break B

resume A

sleep 100

resume B

aio_flush

EOF

cat  <<EOF

break pwritev_rmw.after_tail A

aio_write -P 10 0xc000 0x200

wait_break A

aio_write -P 11 0xc800 0x1000

break pwritev_rmw.after_head B

aio_write -P 10 0xde00 0x200

wait_break B

resume B

sleep 100

resume A

aio_flush

EOF

# Only RMW for the tail part

cat  <<EOF

break pwritev_rmw.after_tail A

aio_write -P 10 0xe000 0x1800

wait_break A

aio_write -P 11 0xf000 0xc00

sleep 100

resume A

aio_flush

EOF

cat  <<EOF

break pwritev A

aio_write -P 10 0x10000 0x800

wait_break A

break pwritev_rmw.after_tail B

aio_write -P 11 0x10000 0x400

break pwritev_done C

resume A

wait_break C

resume C

sleep 100

wait_break B

resume B

aio_flush

EOF

cat  <<EOF

break pwritev A

aio_write -P 10 0x11000 0x800

wait_break A

aio_write -P 11 0x11000 0x1000

sleep 100

resume A

aio_flush

EOF

}

test_io | $QEMU_IO  | _filter_qemu_io | \

    sed -e 's,[0-9/]* bytes at offset [0-9]*,XXX/XXX bytes at offset XXX,g' \

        -e 's/^[0-9]* \(bytes\|KiB\)/XXX bytes/' \

        -e '/Suspended/d'

echo

echo "== Verify image content =="

function verify_io()

{

    # A simple RMW request

    echo read -P 0       0 0x200

    echo read -P 10  0x200 0x200

    echo read -P 0   0x400 0xc00

    # Sequential RMW requests on the same physical sector

    echo read -P 0  0x1000 0x200

    echo read -P 10 0x1200 0x200

    echo read -P 11 0x1400 0x200

    echo read -P 0  0x1600 0xa00

    echo read -P 0  0x2000 0x200

    echo read -P 10 0x2200 0x200

    echo read -P 11 0x2400 0x200

    echo read -P 0  0x2600 0xa00

    echo read -P 0  0x3000 0x200

    echo read -P 10 0x3200 0x200

    echo read -P 11 0x3400 0x200

    echo read -P 0  0x3600 0xa00

    echo read -P 0  0x4000 0x200

    echo read -P 10 0x4200 0x200

    echo read -P 11 0x4400 0x200

    echo read -P 0  0x4600 0xa00

    # Chained dependencies

    echo read -P 10 0x5000 0x200

    echo read -P 11 0x5200 0x200

    echo read -P 12 0x5400 0x200

    echo read -P 13 0x5600 0x200

    echo read -P 14 0x5800 0x200

    echo read -P 15 0x5a00 0x200

    echo read -P 16 0x5c00 0x200

    echo read -P 17 0x5e00 0x200

    # Overlapping multiple requests

    echo read -P 10 0x6000 0x200

    echo read -P  0 0x6200 0x600

    echo read -P 11 0x6800 0x1000

    echo read -P  0 0x7800 0x600

    echo read -P 10 0x7e00 0x200

    echo read -P 10 0x8000 0x200

    echo read -P  0 0x8200 0x600

    echo read -P 11 0x8800 0x1000

    echo read -P  0 0x9800 0x600

    echo read -P 10 0x9e00 0x200

    echo read -P 10 0xa000 0x200

    echo read -P  0 0xa200 0x600

    echo read -P 11 0xa800 0x1000

    echo read -P  0 0xb800 0x600

    echo read -P 10 0xbe00 0x200

    echo read -P 10 0xc000 0x200

    echo read -P  0 0xc200 0x600

    echo read -P 11 0xc800 0x1000

    echo read -P  0 0xd800 0x600

    echo read -P 10 0xde00 0x200

    # Only RMW for the tail part

    echo read -P 10 0xe000 0x1000

    echo read -P 11 0xf800 0x400

    echo read -P  0 0xfc00 0x400

    echo read -P 11 0x10000 0x400

    echo read -P 10 0x10400 0x400

    echo read -P 11 0x11800 0x800

}

verify_io | $QEMU_IO "$TEST_IMG" | _filter_qemu_io

_check_test_img

# success, all done

echo "*** done"

rm -f $seq.full

status=0