On Wed, Apr 16, 2025 at 05:38:25PM +0800, David Gow wrote:

The 32-bit sparc configuration (--arch sparc) crashes on the kunit_fault_test. It's known that some architectures don't handle deliberate segfaults in kernel mode well, so there's a config switch to disable tests which rely upon it by default.

Use this for the sparc config, making sure the default config for it passes.

Fixes: 87c9c1631788 ("kunit: tool: add support for QEMU") Signed-off-by: David Gow davidgow@google.com

Thanks!

I am wondering if this should instead be done in lib/kunit/Kconfig. Not all users of kunit are guaranteed to use kunit.py.

In any case:

Reviewed-by: Thomas Weißschuh thomas.weissschuh@linutronix.de Tested-by: Thomas Weißschuh thomas.weissschuh@linutronix.de

FYI the usercopy test is also broken:

[12:05:43] # usercopy_test_valid: EXPECTATION FAILED at lib/tests/usercopy_kunit.c:209 [12:05:43] Expected val_u64 == 0x5a5b5c5d6a6b6c6d, but [12:05:43] val_u64 == 1515936861 (0x5a5b5c5d) [12:05:43] 0x5a5b5c5d6a6b6c6d == 6510899242581322861 (0x5a5b5c5d6a6b6c6d) [12:05:43] legitimate get_user (u64) failed to do copy [12:05:43] [FAILED] usercopy_test_valid

I can send a patch for that later, but if you are on it anyways that would work for me, too.

---

Another quick fix to the sparc qemu_config I noticed while testing [1].

---

tools/testing/kunit/qemu_configs/sparc.py | 1 + 1 file changed, 1 insertion(+)

diff --git a/tools/testing/kunit/qemu_configs/sparc.py b/tools/testing/kunit/qemu_configs/sparc.py index 3131dd299a6e..2019550a1b69 100644 --- a/tools/testing/kunit/qemu_configs/sparc.py +++ b/tools/testing/kunit/qemu_configs/sparc.py @@ -2,6 +2,7 @@ from ..qemu_config import QemuArchParams QEMU_ARCH = QemuArchParams(linux_arch='sparc', kconfig=''' +CONFIG_KUNIT_FAULT_TEST=n CONFIG_SPARC32=y CONFIG_SERIAL_SUNZILOG=y CONFIG_SERIAL_SUNZILOG_CONSOLE=y -- 2.49.0.604.gff1f9ca942-goog