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Subject[PATCH v4 24/25] selftests/rseq: parametrized test: Report/abort on negative cpu id
Date
Report and abort when a negative cpu id value is observed by the
spinlock test.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
---
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 f3687a90ec0c..1c86b45bd579 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: Observing vcpu id %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);
--
2.25.1
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