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| author |   Joe Lawrence <joe.lawrence@redhat.com> | 2020-06-18 14:10:38 -0400 |
|---|---|---|
| committer |   Petr Mladek <pmladek@suse.com> | 2020-06-19 10:46:42 +0200 |
| commit | 2eeb0d457d13ed7b170e13cd99d15509d0dd832d (patch) | |
| tree | 2b210a9706d67d8053ebf7c4d9a93449b0c2bbfe /tools/testing/selftests/livepatch/README | |
| parent | selftests/livepatch: fix mem leaks in test-klp-shadow-vars (diff) | |
| download | linux-dev-2eeb0d457d13ed7b170e13cd99d15509d0dd832d.tar.xz linux-dev-2eeb0d457d13ed7b170e13cd99d15509d0dd832d.zip | |
selftests/livepatch: Don't clear dmesg when running tests
Inspired by commit f131d9edc29d ("selftests/lkdtm: Don't clear dmesg
when running tests"), keep a reference dmesg copy when beginning each
test. This way check_result() can compare against the initial copy
rather than relying upon an empty log.
Signed-off-by: Joe Lawrence <joe.lawrence@redhat.com>
Reviewed-by: Kamalesh Babulal <kamalesh@linux.vnet.ibm.com>
Reviewed-by: Yannick Cote <ycote@redhat.com>
Reviewed-by: Petr Mladek <pmladek@suse.com>
Acked-by: Miroslav Benes <mbenes@suse.cz>
Signed-off-by: Petr Mladek <pmladek@suse.com>
Link: https://lore.kernel.org/r/20200618181040.21132-2-joe.lawrence@redhat.com
Diffstat (limited to 'tools/testing/selftests/livepatch/README')
| -rw-r--r-- | tools/testing/selftests/livepatch/README | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/tools/testing/selftests/livepatch/README b/tools/testing/selftests/livepatch/README index 621d325425c2..0942dd5826f8 100644 --- a/tools/testing/selftests/livepatch/README +++ b/tools/testing/selftests/livepatch/README @@ -6,8 +6,8 @@ This is a small set of sanity tests for the kernel livepatching. The test suite loads and unloads several test kernel modules to verify livepatch behavior. Debug information is logged to the kernel's message -buffer and parsed for expected messages. (Note: the tests will clear -the message buffer between individual tests.) +buffer and parsed for expected messages. (Note: the tests will compare +the message buffer for only the duration of each individual test.) Config @@ -35,9 +35,9 @@ Adding tests ------------ See the common functions.sh file for the existing collection of utility -functions, most importantly setup_config() and check_result(). The -latter function greps the kernel's ring buffer for "livepatch:" and -"test_klp" strings, so tests be sure to include one of those strings for -result comparison. Other utility functions include general module -loading and livepatch loading helpers (waiting for patch transitions, -sysfs entries, etc.) +functions, most importantly setup_config(), start_test() and +check_result(). The latter function greps the kernel's ring buffer for +"livepatch:" and "test_klp" strings, so tests be sure to include one of +those strings for result comparison. Other utility functions include +general module loading and livepatch loading helpers (waiting for patch +transitions, sysfs entries, etc.) |