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On Mon, 2005-09-19 at 14:37 +0800, Shaohua Li wrote: > On Mon, 2005-09-19 at 11:53 +0530, Srivatsa Vaddagiri wrote: > > default_idle should be fine as it is. IOW it should not cause __cpu_die to > > timeout. > Why default_idle should be fine? it can be preempted before the > 'local_irq_disable' check. Even with Nigel's patch, there is a very > small window at safe_halt (after 'sti' but before 'hlt'). > Ah, actually I have a patch which makes all CPU idle threads run with preempt disabled and only enable preempt when scheduling. Would that help? Nick -- SUSE Labs, Novell Inc. Send instant messages to your online friends http://au.messenger.yahoo.com - 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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