On Thu, 2012-08-23 at 12:04 +0200, Sedat Dilek wrote: > Jack Winter confirmed to see similiar NOHZ messages also on > v3.4.9-rt17 kernel (CPU: Core2Duo when no suspend performed): > > [15223.171585] NOHZ: local_softirq_pending 08 These can be caused by blocking while holding local_softirq_lock. Even with per softirq threads, and then (yet more overhead) splitting the lock to make sure one softirq type can't block another, _and_ only griping if the lock for the pending softirq is _not_ held, seems the little bugger can still be triggered very rarely by syn flood induced handler bail/raise. Annoying little gripe :) -Mike -- To unsubscribe from this list: send the line "unsubscribe linux-next" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html