Messages in this thread | | | Subject | Re: [2.4.17/18pre] VM and swap - it's really unusable | From | Momchil Velikov <> | Date | 14 Jan 2002 18:32:27 +0200 |
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>>>>> "Oliver" == Oliver Neukum <520047054719-0001@t-online.de> writes:
Oliver> On Monday 14 January 2002 13:17, Momchil Velikov wrote: >> >>>>> "yodaiken" == yodaiken <yodaiken@fsmlabs.com> writes: >> yodaiken> It's not even clear how preempt is supposed to interact with >> SCHED_FIFO. >> >> How so ? The POSIX specification is not clear enough or it is not to be >> followed ?
Oliver> You can have an rt task block on a lock held by a normal task that was Oliver> preempted by a rt task of lower priority. The same problem as with the Oliver> sched_idle patches.
This can happen with a non-preemptible kernel too. And it has nothing to do with scheduling policy.
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