Kernel/linux-next
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git synced 2024-12-29 09:12:07 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

selftests/bpf: skip the timer_lockup test for single-CPU nodes

Browse Source 
The timer_lockup test needs 2 CPUs to work, on single-CPU nodes it fails
to set thread affinity to CPU 1 since it doesn't exist:

    # ./test_progs -t timer_lockup
    test_timer_lockup:PASS:timer_lockup__open_and_load 0 nsec
    test_timer_lockup:PASS:pthread_create thread1 0 nsec
    test_timer_lockup:PASS:pthread_create thread2 0 nsec
    timer_lockup_thread:PASS:cpu affinity 0 nsec
    timer_lockup_thread:FAIL:cpu affinity unexpected error: 22 (errno 0)
    test_timer_lockup:PASS: 0 nsec
    #406     timer_lockup:FAIL

Skip the test if only 1 CPU is available.

Signed-off-by: Viktor Malik <vmalik@redhat.com>
Fixes: 50bd5a0c65 ("selftests/bpf: Add timer lockup selftest")
Tested-by: Philo Lu <lulie@linux.alibaba.com>
Acked-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
Link: https://lore.kernel.org/r/20241107115231.75200-1-vmalik@redhat.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
This commit is contained in:
Viktor Malik 2024-11-07 12:52:31 +01:00 committed by Andrii Nakryiko
parent 266a557981
commit 937a1c29a2
1 changed files with 6 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
tools/testing/selftests/bpf/prog_tests/timer_lockup.c
View File

@ -5,6 +5,7 @@
#include <test_progs.h>
#include <pthread.h>
#include <network_helpers.h>
#include <sys/sysinfo.h>
#include "timer_lockup.skel.h"
@ -52,6 +53,11 @@ void test_timer_lockup(void)
pthread_t thrds[2];
void *ret;
if (get_nprocs() < 2) {
test__skip();
return;
}
skel = timer_lockup__open_and_load();
if (!ASSERT_OK_PTR(skel, "timer_lockup__open_and_load"))
return;