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kcsan: test: Add a .kunitconfig to run KCSAN tests

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Add a .kunitconfig file, which provides a default, working config for
running the KCSAN tests. Note that it needs to run on an SMP machine, so
to run under kunit_tool, the --qemu_args option should be used (on a
supported architecture, like x86_64). For example:
./tools/testing/kunit/kunit.py run --arch=x86_64 --qemu_args='-smp 8'
					--kunitconfig=kernel/kcsan

Signed-off-by: David Gow <davidgow@google.com>
Reviewed-by: Marco Elver <elver@google.com>
Acked-by: Brendan Higgins <brendanhiggins@google.com>
Tested-by: Daniel Latypov <dlatypov@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
This commit is contained in:
David Gow 2022-07-15 14:40:52 +08:00 committed by Shuah Khan
parent 94681e289b
commit 426752b253
1 changed files with 24 additions and 0 deletions
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kernel/kcsan/.kunitconfig Normal file
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# Note that the KCSAN tests need to run on an SMP setup.
# Under kunit_tool, this can be done by using the --qemu_args
# option to configure a machine with several cores. For example:
# ./tools/testing/kunit/kunit.py run --kunitconfig=kernel/kcsan \
# --arch=x86_64 --qemu_args="-smp 8"
CONFIG_KUNIT=y
CONFIG_DEBUG_KERNEL=y
# Need some level of concurrency to test a concurrency sanitizer.
CONFIG_SMP=y
CONFIG_KCSAN=y
CONFIG_KCSAN_KUNIT_TEST=y
# Set these if you want to run test_barrier_nothreads
#CONFIG_KCSAN_STRICT=y
#CONFIG_KCSAN_WEAK_MEMORY=y
# This prevents the test from timing out on many setups. Feel free to remove
# (or alter) this, in conjunction with setting a different test timeout with,
# for example, the --timeout kunit_tool option.
CONFIG_KCSAN_REPORT_ONCE_IN_MS=100