The following commit has been merged into the sched/core branch of tip: Commit-ID: a3798e6ffb37481c47773dd1d785c395c0785af8 Gitweb: https://git.kernel.org/tip/a3798e6ffb37481c47773dd1d785c395c0785af8 Author: Mathieu Desnoyers <mathieu.desnoyers@xxxxxxxxxxxx> AuthorDate: Tue, 22 Nov 2022 15:39:22 -05:00 Committer: Peter Zijlstra <peterz@xxxxxxxxxxxxx> CommitterDate: Tue, 27 Dec 2022 12:52:15 +01:00 selftests/rseq: parametrized test: Report/abort on negative concurrency ID Report and abort when a negative concurrency ID value is observed by the spinlock test. Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@xxxxxxxxxxxx> Signed-off-by: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx> Link: https://lore.kernel.org/r/20221122203932.231377-21-mathieu.desnoyers@xxxxxxxxxxxx --- tools/testing/selftests/rseq/param_test.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/tools/testing/selftests/rseq/param_test.c b/tools/testing/selftests/rseq/param_test.c index cadb9d8..bf951a4 100644 --- a/tools/testing/selftests/rseq/param_test.c +++ b/tools/testing/selftests/rseq/param_test.c @@ -410,6 +410,11 @@ static int rseq_this_cpu_lock(struct percpu_lock *lock) int ret; cpu = get_current_cpu_id(); + if (cpu < 0) { + fprintf(stderr, "pid: %d: tid: %d, cpu: %d: cid: %d\n", + getpid(), (int) rseq_gettid(), rseq_current_cpu_raw(), cpu); + abort(); + } ret = rseq_cmpeqv_storev(RSEQ_MO_RELAXED, RSEQ_PERCPU, &lock->c[cpu].v, 0, 1, cpu);
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