tests: kernel: metairq: Ensure meta-IRQ can preempt a cooperative thread (06d14080) · Commits · Wenxi XU / zephyr

The intention of the test is to have a meta-IRQ preempt a cooperative thread, then ensure the same cooperative thread is resumed back to instead of a higher priority thread. Thus, the test needs to assert that the lower priority cooperative thread is not yet complete when it makes the higher priority thread ready to run. This change reveals bugs like #80574, where the meta-IRQ is unable to preempt a cooperative thread. Signed-off-by:

Kalle Kietäväinen <kalle.kietavainen@silabs.com> (cherry picked from commit )

tests/kernel/sched/metairq/src/main.c

+6 −0

Changes for tests/kernel/sched/metairq/src/main.c: 6 added lines, 0 removed lines.
Original line number	Diff line number	Diff line
		@@ -77,6 +77,8 @@ void metairq_thread(void p1, void p2, void *p3)

		k_msleep(WAIT_MS);

		zassert_not_equal(coop_cnt2, LOOP_CNT, "thread2 wasn't preempted");

		printk("give sem1\n");
		k_sem_give(&coop_sem1);

		@@ -113,6 +115,8 @@ void coop_thread1(void p1, void p2, void *p3)
		cnt2 = coop_cnt2;
		zassert_equal(cnt2, LOOP_CNT, "Unexpected cnt2 at end: %d", cnt2);

		printk("thread1 end\n");

		k_sem_give(&coop_sem1);
		}

		@@ -155,6 +159,8 @@ void coop_thread2(void p1, void p2, void *p3)
		cnt2 = coop_cnt2;
		zassert_equal(cnt2, LOOP_CNT, "Unexpected cnt2 at end: %d", cnt2);

		printk("thread2 end\n");

		k_sem_give(&coop_sem2);
		}

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