On 2/19/25 12:16, Sinadin Shan wrote:
The sched tests are missing a target entry and hence out-of-tree build support. For instance: make -C tools/testing/selftests install INSTALL_LOCATION=/foo/bar is expected to build the sched tests and place them at /foo/bar. But this is not observed since a TARGET entry is not present for sched. This was suggested by Shuah in this conversation Link: https://lore.kernel.org/linux-kselftest/60dd0240-8e45-4958-acf2-7eeee917785b@xxxxxxxxxxxxxxxxxxx/ Add support for sched selftests by adding sched as a default TARGET Signed-off-by: Sinadin Shan <sinadin.shan@xxxxxxxxxx> --- tools/testing/selftests/Makefile | 1 + 1 file changed, 1 insertion(+) diff --git a/tools/testing/selftests/Makefile b/tools/testing/selftests/Makefile index 8daac70c2f9d2..e2d0d389ad912 100644 --- a/tools/testing/selftests/Makefile +++ b/tools/testing/selftests/Makefile @@ -91,6 +91,7 @@ TARGETS += rlimits TARGETS += rseq TARGETS += rtc TARGETS += rust +TARGETS += sched TARGETS += sched_ext TARGETS += seccomp TARGETS += sgx
There is only one test currently in sched: i.e cs_prctl_test.c. to see the cookies validation when core scheduling is in effect.
If CONFIG_SCHED_CORE=n, the test fails. So you might end up seeing default selftests failing on such systems? or this is only compiling?
Likely the selftests/sched needs to modified for CONFIG_SCHED_CORE=n When CONFIG_SCHED_CORE=n ./cs_prctl_test ## Create a thread/process/process group hierarchy Not a core sched system ... Not a core sched system (283) FAILED: get_cs_cookie(0) == 0
