00:12:02.358     def verify_pattern(path, format, offset=512, len=1024, pattern=5):
00:12:02.358         read_cmd = 'read -P %d -s 0 -l %d %d %d' % (pattern, len, offset, len)
00:12:02.358         cmd = ['qemu-io', '-f', format, '-c', read_cmd, path]
00:12:02.358         rc, out, err = commands.execCmd(cmd, raw=True)
00:12:02.358         if rc != 0 or err != b"":
00:12:02.358 >           raise cmdutils.Error(cmd, rc, out, err)
00:12:02.358 E           Error: Command ['qemu-io', '-f', 'qcow2', '-c', 'read -P 240 -s 0 -l 1024 0 1024', '/var/tmp/tmpbxNeWA/mnt/blockSD/3fd2ac6f-929b-425a-a7d7-3b8519dedc91/images/e438933b-7d87-4fd6-a2fa-e53cb2e26a19/8ff32e26-b426-4ebf-a8cb-48353cf898e7'] failed with rc=1 out='Pattern verification failed at offset 0, 1024 bytes\nread 1024/1024 bytes at offset 0\n1 KiB, 1 ops; 0.0000 sec (17.756 MiB/sec and 18181.8182 ops/sec)\n' err=''

00:12:02.352 Error: Command ['/usr/bin/taskset', '--cpu-list', '0-1', '/usr/bin/nice', '-n', '19', '/usr/bin/ionice', '-c', '3', '/usr/bin/qemu-img', 'convert', '-p', '-t', 'none', '-T', 'none', '-f', 'raw', '/var/tmp/tmpmwqNI9/9a7a895a-eaed-4de0-97b5-05009e336853/15ca6f4c-2753-450f-8e4b-1e3278fc664e/images/89432c41-c8c9-4d4e-ab86-ef892806162b/9dbca6ff-412a-4c85-a4eb-51dfa4fadbd8', '-O', 'raw', '/var/tmp/tmpmwqNI9/9a7a895a-eaed-4de0-97b5-05009e336853/15ca6f4c-2753-450f-8e4b-1e3278fc664e/images/51e0d2ba-0cb0-421c-901b-4842e8612ca4/3b857f90-3062-4698-9920-2c4849b7256f'] failed with rc=-6 out='' err=bytearray(b"qemu-img: block/io.c:2134: bdrv_co_block_status: Assertion `*pnum && (((*pnum) % (align)) == 0) && align > offset - aligned_offset\' failed.\n")