![]() | |||||||||||||
Messages in this thread |
* Thomas Gleixner <tglx@linutronix.de> wrote: > The NOHZ patch contains a check for softirqs pending when a CPU goes > idle. The BUG is unrelated to NOHZ, it just was made visible by the > NOHZ patch. The BUG showed up mainly on P4 / hyperthreading enabled > machines which lead the investigations into the wrong direction in the > first place. The real cause is in cond_resched_softirq(): > > cond_resched_softirq() is enabling softirqs without invoking the > softirq daemon when softirqs are pending. This leads to the warning > message in the NOHZ idle code: good find! > raw_local_irq_disable(); > - _local_bh_enable(); > + local_bh_enable(); > raw_local_irq_enable(); hm, i think this should be done without having irqs disabled? Ingo - 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/ | ||||||||||||
| Last update: 2007-05-22 07:07 [from the cache] ©2003-2008 | |||||||||||||