On Thu, 7 Jul 2005, Ingo Molnar wrote: > is this inheritance perpetual? It is normal for some tasks to be boosted > momentarily, but if the condition remains even after jackd has exited, > it's clearly an anomaly. (lets call it "RT priority leakage".) Priority > leakage on SMP was fixed recently, but there could be other bugs > remaining. > > There's priority-leakage debugging code in the -RT kernel, which is > activated if you enable CONFIG_DEBUG_PREEMPT. This debugging code, if > triggered, should produce 'BUG: comm/123 leaked RT prio 123 (123)?" type > of messages. But ... due to a bug it would not print out anything but > would lock up hard if it detects the condition (and if > RT_DEADLOCK_DETECT is enabled). I have fixed this reporting bug in the > -51-08 kernel.
-51-12 is still exhibhiting the RT priority leakage, but isn't producing any BUG messages. --ww - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
