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2025-09-10selftests/bpf: Skip timer cases when bpf_timer is not supportedLeon Hwang1-0/+4
When enable CONFIG_PREEMPT_RT, verifier will reject bpf_timer with returning -EOPNOTSUPP. Therefore, skip test cases when errno is EOPNOTSUPP. cd tools/testing/selftests/bpf ./test_progs -t timer 125 free_timer:SKIP 456 timer:SKIP 457/1 timer_crash/array:SKIP 457/2 timer_crash/hash:SKIP 457 timer_crash:SKIP 458 timer_lockup:SKIP 459 timer_mim:SKIP Summary: 5/0 PASSED, 6 SKIPPED, 0 FAILED Signed-off-by: Leon Hwang <leon.hwang@linux.dev> Link: https://lore.kernel.org/r/20250910125740.52172-3-leon.hwang@linux.dev Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2022-02-11selftests/bpf: Add test for bpf_timer overwriting crashKumar Kartikeya Dwivedi1-0/+32
Add a test that validates that timer value is not overwritten when doing a copy_map_value call in the kernel. Without the prior fix, this test triggers a crash. Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/20220209070324.1093182-3-memxor@gmail.com