The bpf selftest send_signal() is flaky for its subtests trying to send signals in softirq/nmi context. To reduce flakiness, the signal-targetted process priority is boosted, which should minimize preemption of that process and improve the possibility that the underlying task in softirq/nmi context is the bpf_send_signal() wanted task. Patch #1 did a refactoring to use ASSERT_* instead of old CHECK macros. Patch #2 did actual change of boosting priority. Yonghong Song (2): selftests/bpf: replace CHECK with ASSERT_* macros in send_signal.c selftests/bpf: fix flaky send_signal test .../selftests/bpf/prog_tests/send_signal.c | 68 ++++++++++++------- .../bpf/progs/test_send_signal_kern.c | 3 +- 2 files changed, 43 insertions(+), 28 deletions(-) -- 2.30.2
