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(parent: 5cb350b) | patch
sched: fix rt ptracer monopolizing CPU
authorGautham R Shenoy <ego@in.ibm.com>
Mon, 15 Oct 2007 15:00:14 +0000 (17:00 +0200)
committerIngo Molnar <mingo@elte.hu>
Mon, 15 Oct 2007 15:00:14 +0000 (17:00 +0200)
commit638e13ac37a1a89473415f407cbffc1688a20fe2
treec39999a223e8b272819c3676684c88d40aa47040tree | snapshot (tar.gz zip)
parent5cb350baf580017da38199625b7365b1763d7180commit | diff
sched: fix rt ptracer monopolizing CPU

yield() in wait_task_inactive(), can cause a high priority thread to be
scheduled back in, and there by loop forever while it is waiting for some
lower priority thread which is unfortunately still on the runqueue.

Use schedule_timeout_uninterruptible(1) instead.

Signed-off-by: Gautham R Shenoy <ego@in.ibm.com>
Credit: Oleg Nesterov <oleg@tv-sign.ru>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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Motorola kernel-slsi