Messages in this thread Patch in this message |  | | From | Paul Mackerras <> | Date | Mon, 19 Aug 2002 11:56:04 +1000 (EST) | Subject | [PATCH] fix bug in yield() |
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This patch makes yield() actually call schedule.
Without this patch, 2.4.20-pre3 will hang on boot for me, looping in spawn_ksoftirqd waiting for ksoftirqd to start and calling yield(). ksoftirqd never gets to run, however, because yield never actually calls schedule. (Note that sys_sched_yield as a syscall is OK because the syscall exit path will check current->need_resched and call schedule).
Paul.
diff -urN linux-2.4/kernel/sched.c pmac/kernel/sched.c --- linux-2.4/kernel/sched.c Wed Aug 7 18:10:01 2002 +++ pmac/kernel/sched.c Mon Aug 19 10:39:39 2002 @@ -1081,6 +1081,7 @@ { set_current_state(TASK_RUNNING); sys_sched_yield(); + schedule(); } void __cond_resched(void) - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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