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| author | Markus Armbruster <armbru@redhat.com> | 2014-05-14 15:12:34 +0200 |
|---|---|---|
| committer | Kevin Wolf <kwolf@redhat.com> | 2014-05-19 11:36:49 +0200 |
| commit | d530e342320d4db3c9522bfadc60a7bc8142343a (patch) | |
| tree | 9d17fe3b3854bbc46fc9a3b6e413cd67198cc2ea /tests/qemu-iotests/039 | |
| parent | 4ad303369c8818fb8bbe9f9c9f79e5de7c68e81e (diff) | |
| download | qemu-d530e342320d4db3c9522bfadc60a7bc8142343a.zip qemu-d530e342320d4db3c9522bfadc60a7bc8142343a.tar.gz qemu-d530e342320d4db3c9522bfadc60a7bc8142343a.tar.bz2 | |
qemu-iotests: Fix core dump suppression in test 039
The shell script attempts to suppress core dumps like this:
old_ulimit=$(ulimit -c)
ulimit -c 0
$QEMU_IO arg...
ulimit -c "$old_ulimit"
This breaks the test hard unless the limit was zero to begin with!
ulimit sets both hard and soft limit by default, and (re-)raising the
hard limit requires privileges. Broken since it was added in commit
dc68afe.
Could be fixed by adding -S to set only the soft limit, but I'm not
sure how portable that is in practice. Simply do it in a subshell
instead, like this:
(ulimit -c 0; exec $QEMU_IO arg...)
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'tests/qemu-iotests/039')
| -rwxr-xr-x | tests/qemu-iotests/039 | 20 |
1 files changed, 8 insertions, 12 deletions
diff --git a/tests/qemu-iotests/039 b/tests/qemu-iotests/039 index b9cbe99..27fe4bd 100755 --- a/tests/qemu-iotests/039 +++ b/tests/qemu-iotests/039 @@ -47,6 +47,11 @@ _supported_os Linux _default_cache_mode "writethrough" _supported_cache_modes "writethrough" +_no_dump_exec() +{ + (ulimit -c 0; exec "$@") +} + size=128M echo @@ -67,10 +72,7 @@ echo "== Creating a dirty image file ==" IMGOPTS="compat=1.1,lazy_refcounts=on" _make_test_img $size -old_ulimit=$(ulimit -c) -ulimit -c 0 # do not produce a core dump on abort(3) -$QEMU_IO -c "write -P 0x5a 0 512" -c "abort" "$TEST_IMG" | _filter_qemu_io -ulimit -c "$old_ulimit" +_no_dump_exec $QEMU_IO -c "write -P 0x5a 0 512" -c "abort" "$TEST_IMG" 2>&1 | _filter_qemu_io # The dirty bit must be set ./qcow2.py "$TEST_IMG" dump-header | grep incompatible_features @@ -103,10 +105,7 @@ echo "== Opening a dirty image read/write should repair it ==" IMGOPTS="compat=1.1,lazy_refcounts=on" _make_test_img $size -old_ulimit=$(ulimit -c) -ulimit -c 0 # do not produce a core dump on abort(3) -$QEMU_IO -c "write -P 0x5a 0 512" -c "abort" "$TEST_IMG" | _filter_qemu_io -ulimit -c "$old_ulimit" +_no_dump_exec $QEMU_IO -c "write -P 0x5a 0 512" -c "abort" "$TEST_IMG" 2>&1 | _filter_qemu_io # The dirty bit must be set ./qcow2.py "$TEST_IMG" dump-header | grep incompatible_features @@ -122,10 +121,7 @@ echo "== Creating an image file with lazy_refcounts=off ==" IMGOPTS="compat=1.1,lazy_refcounts=off" _make_test_img $size -old_ulimit=$(ulimit -c) -ulimit -c 0 # do not produce a core dump on abort(3) -$QEMU_IO -c "write -P 0x5a 0 512" -c "abort" "$TEST_IMG" | _filter_qemu_io -ulimit -c "$old_ulimit" +_no_dump_exec $QEMU_IO -c "write -P 0x5a 0 512" -c "abort" "$TEST_IMG" 2>&1 | _filter_qemu_io # The dirty bit must not be set since lazy_refcounts=off ./qcow2.py "$TEST_IMG" dump-header | grep incompatible_features |