bf22957309
Running
git grep '\$here' tests/qemu-iotests
has 0 hits, which means we are setting a variable that has
no use. It appears that commit e8f8624d removed the last
use. So execute the following cmd to remove all of
the 'here=...' lines as dead code.
sed -i '/^here=/d' $(git grep -l '^here=' tests/qemu-iotests)
Cc: kwolf@redhat.com
Cc: mreitz@redhat.com
Cc: eblake@redhat.com
Suggested-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Mao Zhongyi <maozhongyi@cmss.chinamobile.com>
Message-Id: <20181024094051.4470-3-maozhongyi@cmss.chinamobile.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
[eblake: touch up commit message, reorder series, rebase to master]
Signed-off-by: Eric Blake <eblake@redhat.com>
72 lines
2.1 KiB
Bash
Executable file
72 lines
2.1 KiB
Bash
Executable file
#!/bin/bash
|
|
#
|
|
# General test case for qcow2's image check
|
|
#
|
|
# Copyright (C) 2015 Red Hat, Inc.
|
|
#
|
|
# This program is free software; you can redistribute it and/or modify
|
|
# it under the terms of the GNU General Public License as published by
|
|
# the Free Software Foundation; either version 2 of the License, or
|
|
# (at your option) any later version.
|
|
#
|
|
# This program is distributed in the hope that it will be useful,
|
|
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
# GNU General Public License for more details.
|
|
#
|
|
# You should have received a copy of the GNU General Public License
|
|
# along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
#
|
|
|
|
# creator
|
|
owner=mreitz@redhat.com
|
|
|
|
seq="$(basename $0)"
|
|
echo "QA output created by $seq"
|
|
|
|
status=1 # failure is the default!
|
|
|
|
_cleanup()
|
|
{
|
|
_cleanup_test_img
|
|
}
|
|
trap "_cleanup; exit \$status" 0 1 2 3 15
|
|
|
|
# get standard environment, filters and checks
|
|
. ./common.rc
|
|
. ./common.filter
|
|
|
|
# This tests qocw2-specific low-level functionality
|
|
_supported_fmt qcow2
|
|
_supported_proto file
|
|
_supported_os Linux
|
|
|
|
echo
|
|
echo '=== Check on an image with a multiple of 2^32 clusters ==='
|
|
echo
|
|
|
|
IMGOPTS=$(_optstr_add "$IMGOPTS" "cluster_size=512") \
|
|
_make_test_img 512
|
|
|
|
# Allocate L2 table
|
|
$QEMU_IO -c 'write 0 512' "$TEST_IMG" | _filter_qemu_io
|
|
|
|
# Put the data cluster at a multiple of 2 TB, resulting in the image apparently
|
|
# having a multiple of 2^32 clusters
|
|
# (To be more specific: It is at 32 PB)
|
|
poke_file "$TEST_IMG" 2048 "\x80\x80\x00\x00\x00\x00\x00\x00"
|
|
|
|
# An offset of 32 PB results in qemu-img check having to allocate an in-memory
|
|
# refcount table of 128 TB (16 bit refcounts, 512 byte clusters).
|
|
# This should be generally too much for any system and thus fail.
|
|
# What this test is checking is that the qcow2 driver actually tries to allocate
|
|
# such a large amount of memory (and is consequently aborting) instead of having
|
|
# truncated the cluster count somewhere (which would result in much less memory
|
|
# being allocated and then a segfault occurring).
|
|
_check_test_img
|
|
|
|
# success, all done
|
|
echo "*** done"
|
|
rm -f $seq.full
|
|
status=0
|