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qemu-iotests: Test snapshot=on with nonexistent TMPDIR

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We just fixed a bug that was causing a use-after-free when QEMU was
unable to create a temporary snapshot. This is a test case for this
scenario.

Signed-off-by: Alberto Garcia <berto@igalia.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Alberto Garcia 2018-09-10 12:29:23 +03:00 committed by Kevin Wolf
parent 8961be33e8
commit 6a7014ef22
3 changed files with 9 additions and 0 deletions
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3
tests/qemu-iotests/051
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@ -354,6 +354,9 @@ printf %b "qemu-io $device_id \"write -P 0x33 0 4k\"\ncommit $device_id\n" |
$QEMU_IO -c "read -P 0x33 0 4k" "$TEST_IMG" | _filter_qemu_io
# Using snapshot=on with a non-existent TMPDIR
TMPDIR=/nonexistent run_qemu -drive driver=null-co,snapshot=on
# success, all done
echo "*** done"
rm -f $seq.full

3
tests/qemu-iotests/051.out
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@ -455,4 +455,7 @@ wrote 4096/4096 bytes at offset 0
read 4096/4096 bytes at offset 0
4 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
Testing: -drive driver=null-co,snapshot=on
QEMU_PROG: -drive driver=null-co,snapshot=on: Could not get temporary filename: No such file or directory
*** done

3
tests/qemu-iotests/051.pc.out
View file

@ -527,4 +527,7 @@ wrote 4096/4096 bytes at offset 0
read 4096/4096 bytes at offset 0
4 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
Testing: -drive driver=null-co,snapshot=on
QEMU_PROG: -drive driver=null-co,snapshot=on: Could not get temporary filename: No such file or directory
*** done