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This commit is contained in:
Gregory Nutt 2014-11-20 06:58:19 -06:00
parent bee3640829
commit 6f94e5e4be
1 changed files with 6 additions and 0 deletions
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6
sched/init/os_start.c
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@ -534,6 +534,12 @@ void os_start(void)
* BUT the idle task cannot wait on a semaphore. So we only do * BUT the idle task cannot wait on a semaphore. So we only do
* the cleanup now if we can get the semaphore -- this should be * the cleanup now if we can get the semaphore -- this should be
* possible because if the IDLE thread is running, no other task is! * possible because if the IDLE thread is running, no other task is!
*
* WARNING: This logic could have undesirable side-effects if priority
* inheritance is enabled. Imaginee the possible issues if the
* priority of the IDLE thread were to get boosted! Moral: If you
* use priority inheritance, then you should also enable the work
* queue so that is done in a safer context.
*/ */
if (kmm_trysemaphore() == 0) if (kmm_trysemaphore() == 0)