The condition statement in default_idle had the conjunctions backwards.
Instead of && it had || so the idle thread would never be preempted.
Signed-off-by: Steven Rostedt <[email protected]>
Index: linux-2.6.16-rt23/arch/x86_64/kernel/process.c
===================================================================
--- linux-2.6.16-rt23.orig/arch/x86_64/kernel/process.c 2006-05-26 10:41:30.000000000 -0400
+++ linux-2.6.16-rt23/arch/x86_64/kernel/process.c 2006-05-26 10:41:44.000000000 -0400
@@ -120,9 +120,9 @@ void default_idle(void)
clear_thread_flag(TIF_POLLING_NRFLAG);
smp_mb__after_clear_bit();
- while (!need_resched() || !need_resched_delayed()) {
+ while (!need_resched() && !need_resched_delayed()) {
local_irq_disable();
- if (!need_resched() || !need_resched_delayed())
+ if (!need_resched() && !need_resched_delayed())
safe_halt();
else
local_irq_enable();
--
-
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