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| author | Stefan Hajnoczi <stefanha@redhat.com> | 2013-05-27 15:28:51 +0200 |
|---|---|---|
| committer | Anthony Liguori <aliguori@us.ibm.com> | 2013-05-29 08:16:06 -0500 |
| commit | 04129606170ec9011d4952b4f22c368679bedbf9 (patch) | |
| tree | a53f3ba8fe43f2c52d0538240ee6332313afb427 /tests/qemu-iotests/check | |
| parent | dafb82e0fc89b631d25f8def649fbfd14fec3db2 (diff) | |
| download | qemu-04129606170ec9011d4952b4f22c368679bedbf9.tar.gz | |
tests: set MALLOC_PERTURB_ to expose memory bugs
glibc wipes malloc(3) memory when the MALLOC_PERTURB_ environment
variable is set. The value of the environment variable determines the
bit pattern used to wipe memory. For more information, see
http://udrepper.livejournal.com/11429.html.
Set MALLOC_PERTURB_ for gtester and qemu-iotests. Note we pick a random
value from 1 to 255 to expose more bugs. If you need to reproduce a
crash use 'show environment' in gdb to extract the MALLOC_PERTURB_
value from a core dump.
Both make check and qemu-iotests pass with MALLOC_PERTURB_ enabled.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-id: 1369661331-28041-1-git-send-email-stefanha@redhat.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Diffstat (limited to 'tests/qemu-iotests/check')
| -rwxr-xr-x | tests/qemu-iotests/check | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/tests/qemu-iotests/check b/tests/qemu-iotests/check index 432732cfc3..74628ae637 100755 --- a/tests/qemu-iotests/check +++ b/tests/qemu-iotests/check @@ -214,7 +214,8 @@ do start=`_wallclock` $timestamp && echo -n " ["`date "+%T"`"]" [ ! -x $seq ] && chmod u+x $seq # ensure we can run it - ./$seq >$tmp.out 2>&1 + MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(($RANDOM % 255 + 1))} \ + ./$seq >$tmp.out 2>&1 sts=$? $timestamp && _timestamp stop=`_wallclock` |