Commit c291ed46 authored Jan 24, 2025 by Kalle Kietäväinen Committed by Anas Nashif Jul 03, 2025

tests: kernel: metairq: Ensure meta-IRQ can preempt a cooperative thread



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 52b8e3d3)

parent e011c605

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

+6 −0

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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