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iotests: Set read-zeroes on in null block driver for Valgrind

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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>
This commit is contained in:
Andrey Shinkevich 2019-07-15 19:07:59 +03:00 • committed by Kevin Wolf
parent 0274f45bde
commit a6862418fe
10 changed files with 111 additions and 109 deletions
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10
tests/qemu-iotests/051
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@ -251,11 +251,11 @@ echo
# Cannot use the test image because cache=none might not work on the host FS
# Use cdrom so that we won't get errors about missing media
run_qemu -drive driver=null-co,cache=none
run_qemu -drive driver=null-co,cache=directsync
run_qemu -drive driver=null-co,cache=writeback
run_qemu -drive driver=null-co,cache=writethrough
run_qemu -drive driver=null-co,cache=unsafe
run_qemu -drive driver=null-co,read-zeroes=on,cache=none
run_qemu -drive driver=null-co,read-zeroes=on,cache=directsync
run_qemu -drive driver=null-co,read-zeroes=on,cache=writeback
run_qemu -drive driver=null-co,read-zeroes=on,cache=writethrough
run_qemu -drive driver=null-co,read-zeroes=on,cache=unsafe
run_qemu -drive driver=null-co,cache=invalid_value
# Can't test direct=on here because O_DIRECT might not be supported on this FS