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[kernel]fix scheduling exception caused by interrupt preemption in rt_schedule #10715

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Merged
Rbb666 merged 1 commit into from
Sep 21, 2025
Merged

[kernel]fix scheduling exception caused by interrupt preemption in rt_schedule #10715

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7 changes: 5 additions & 2 deletions src/scheduler_up.c
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Original file line number Diff line number Diff line change
Expand Up @@ -32,6 +32,7 @@
* 2023-10-17 ChuShicheng Modify the timing of clearing RT_THREAD_STAT_YIELD flag bits
* 2025-08-04 Pillar Add rt_scheduler_critical_switch_flag
* 2025-08-20 RyanCW rt_scheduler_lock_nest use atomic operations
* 2025-09-20 wdfk_prog fix scheduling exception caused by interrupt preemption in rt_schedule
*/

#define __RT_IPC_SOURCE__
Expand Down Expand Up @@ -283,12 +284,14 @@ void rt_schedule(void)
rt_base_t level;
struct rt_thread *to_thread;
struct rt_thread *from_thread;
/* using local variable to avoid unecessary function call */
struct rt_thread *curr_thread = rt_thread_self();
struct rt_thread *curr_thread;

/* disable interrupt */
level = rt_hw_interrupt_disable();

/* using local variable to avoid unnecessary function call */
curr_thread = rt_thread_self();

/* check the scheduler is enabled or not */
if (rt_scheduler_lock_nest == 0)
{
Expand Down
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