qemu-e2k/tests/qemu-iotests/186
Andrey Shinkevich a6862418fe iotests: Set read-zeroes on in null block driver for Valgrind
The Valgrind tool reports about the uninitialised buffer 'buf'
instantiated on the stack of the function guess_disk_lchs().
Pass 'read-zeroes=on' to the null block driver to make it deterministic.
The output of the tests 051, 186 and 227 now includes the parameter
'read-zeroes'. So, the benchmark output files are being changed too.

Suggested-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Andrey Shinkevich <andrey.shinkevich@virtuozzo.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2019-07-19 13:19:09 +02:00

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#!/usr/bin/env bash
#
# Test 'info block' with all kinds of configurations
#
# 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=kwolf@redhat.com
seq=`basename $0`
echo "QA output created by $seq"
status=1 # failure is the default!
_cleanup()
{
_cleanup_test_img
}
trap "_cleanup; exit \$status" 0 1 2 3 15
# get standard environment, filters and checks
. ./common.rc
. ./common.filter
_supported_fmt qcow2
_supported_proto file
if [ "$QEMU_DEFAULT_MACHINE" != "pc" ]; then
_notrun "Requires a PC machine"
fi
do_run_qemu()
{
echo Testing: "$@"
(
if ! test -t 0; then
while read cmd; do
echo $cmd
done
fi
echo quit
) | $QEMU -S -display none -device virtio-scsi-pci -monitor stdio "$@" 2>&1
echo
}
check_info_block()
{
echo "info block" |
do_run_qemu "$@" | _filter_win32 | _filter_hmp | _filter_qemu |
_filter_generated_node_ids | _filter_qom_path
}
size=64M
_make_test_img $size
removable="floppy ide-cd scsi-cd"
fixed="ide-hd scsi-hd virtio-blk-pci"
echo
echo "=== Empty drives ==="
echo
for dev in $removable; do
check_info_block -device $dev
check_info_block -device $dev,id=qdev_id
done
echo
echo "=== -blockdev/-device=<node-name> ==="
echo
for dev in $fixed $removable; do
check_info_block -blockdev driver=null-co,read-zeroes=on,node-name=null -device $dev,drive=null
check_info_block -blockdev driver=null-co,read-zeroes=on,node-name=null -device $dev,drive=null,id=qdev_id
done
echo
echo "=== -drive if=none/-device=<node-name> ==="
echo
# This creates two BlockBackends that will show up in 'info block'!
# A monitor-owned one from -drive, and anonymous one from -device
for dev in $fixed $removable; do
check_info_block -drive if=none,driver=null-co,read-zeroes=on,node-name=null -device $dev,drive=null,id=qdev_id
done
echo
echo "=== -drive if=none/-device=<bb-name> (with medium) ==="
echo
for dev in $fixed $removable; do
check_info_block -drive if=none,driver=null-co,read-zeroes=on,node-name=null -device $dev,drive=none0
check_info_block -drive if=none,driver=null-co,read-zeroes=on,node-name=null -device $dev,drive=none0,id=qdev_id
done
echo
echo "=== -drive if=none/-device=<bb-name> (without medium) ==="
echo
check_info_block -drive if=none
for dev in $removable; do
check_info_block -drive if=none -device $dev,drive=none0
check_info_block -drive if=none -device $dev,drive=none0,id=qdev_id
done
echo
echo "=== -drive if=... ==="
echo
check_info_block -drive if=floppy
check_info_block -drive if=floppy,driver=null-co,read-zeroes=on
check_info_block -drive if=ide,driver=null-co,read-zeroes=on
check_info_block -drive if=ide,media=cdrom
check_info_block -drive if=ide,driver=null-co,read-zeroes=on,media=cdrom
check_info_block -drive if=virtio,driver=null-co,read-zeroes=on
check_info_block -drive if=pflash,driver=null-co,read-zeroes=on,size=1M
# success, all done
echo "*** done"
rm -f $seq.full
status=0