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i've uploaded the -P0 patch: http://redhat.com/~mingo/voluntary-preempt/voluntary-preempt-2.6.8.1-P0 those who had APIC (and USB, under SMP) problems under previous versions, are the problems still present in -P0? Changes: - make redirected softirqs and hardirqs preemptible by default. I reviewed a number of softirq users and it appears to be safe. Process-level enable/disable_bh still disables preemption, but the handlers themselves run in a preemptible way. This preemptability should fix e.g. the IDE latencies. It could also fix some of the /dev/random related latencies. - fixed a bug in hardirq redirection - we didnt re-disable interrupts - updated the IO-APIC changes - hopefully it's more robust now 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/ | ||||||||||||
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