From a6862418fec40727b392c86dc13d9ec980efcb15 Mon Sep 17 00:00:00 2001
From: Andrey Shinkevich <andrey.shinkevich@virtuozzo.com>
Date: Mon, 15 Jul 2019 19:07:59 +0300
Subject: 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>
---
 tests/qemu-iotests/227 | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'tests/qemu-iotests/227')

diff --git a/tests/qemu-iotests/227 b/tests/qemu-iotests/227
index bdd727a721..637d7c3726 100755
--- a/tests/qemu-iotests/227
+++ b/tests/qemu-iotests/227
@@ -57,7 +57,7 @@ echo
 echo '=== blockstats with -drive if=virtio ==='
 echo
 
-run_qemu -drive driver=null-co,if=virtio <<EOF
+run_qemu -drive driver=null-co,read-zeroes=on,if=virtio <<EOF
 { "execute": "qmp_capabilities" }
 { "execute": "query-blockstats"}
 { "execute": "quit" }
@@ -87,7 +87,7 @@ echo
 echo '=== blockstats with -blockdev and -device ==='
 echo
 
-run_qemu -blockdev driver=null-co,node-name=null -device virtio-blk,drive=null,id=virtio0 <<EOF
+run_qemu -blockdev driver=null-co,read-zeroes=on,node-name=null -device virtio-blk,drive=null,id=virtio0 <<EOF
 { "execute": "qmp_capabilities" }
 { "execute": "query-blockstats"}
 { "execute": "quit" }
-- 
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