On Sat, 21 Feb 2026 11:36:26 -0800 SeongJae Park <[email protected]> wrote:
> CONFIG_DAMON_DEBUG_SANITY is recommended for DAMON development and test > setups. Enable it on the default configurations for DAMON kunit test > run. > > Signed-off-by: SeongJae Park <[email protected]> > --- > mm/damon/tests/.kunitconfig | 3 +++ > 1 file changed, 3 insertions(+) > > diff --git a/mm/damon/tests/.kunitconfig b/mm/damon/tests/.kunitconfig > index 36a450f57b581..144d27e6ecc5c 100644 > --- a/mm/damon/tests/.kunitconfig > +++ b/mm/damon/tests/.kunitconfig > @@ -13,3 +13,6 @@ CONFIG_DAMON_VADDR_KUNIT_TEST=y > CONFIG_SYSFS=y > CONFIG_DAMON_SYSFS=y > CONFIG_DAMON_SYSFS_KUNIT_TEST=y > + > +# enable DAMON_DEBUG_SANITY to catch any bug > +CONFIG_DAMON_DEBUG_SANITY=y And this makes kunit for DAMON fails, like below. ''' $ ./tools/testing/kunit/kunit.py run --kunitconfig mm/damon/tests/ [11:57:20] Configuring KUnit Kernel ... Regenerating .config ... Populating config with: $ make ARCH=um O=.kunit olddefconfig [11:57:24] Building KUnit Kernel ... Populating config with: $ make ARCH=um O=.kunit olddefconfig Building with: $ make all compile_commands.json scripts_gdb ARCH=um O=.kunit --jobs=8 ERROR:root:In file included from ../include/asm-generic/bug.h:7, from ./arch/um/include/generated/asm/bug.h:1, from ../arch/x86/include/asm/alternative.h:9, from ../arch/x86/um/asm/barrier.h:6, from ../include/linux/list.h:11, from ../arch/um/include/linux/time-internal.h:9, from ../arch/x86/um/asm/processor.h:4, from ../include/linux/sched.h:13, from ../include/linux/cgroup.h:12, from ../include/linux/memcontrol.h:13, from ../include/linux/damon.h:11, from ../mm/damon/core.c:10: ../mm/damon/core.c: In function ‘damon_verify_new_region’: ../include/linux/once_lite.h:28:50: error: expected expression before ‘)’ token 28 | bool __ret_do_once = !!(condition); \ | ^ ../include/asm-generic/bug.h:185:9: note: in expansion of macro ‘DO_ONCE_LITE_IF’ 185 | DO_ONCE_LITE_IF(condition, WARN, 1, format) | ^~~~~~~~~~~~~~~ ../mm/damon/core.c:127:9: note: in expansion of macro ‘WARN_ONCE’ 127 | WARN_ONCE(); | ^~~~~~~~~ ''' I changed BUG() to WARN_ONCE() on the last moment of this patch posting, so I missed this failure. I will fix this on the next revision. Thanks, SJ [...]
