Where did the arm ep93xx changes come from? It looks like patch below
came in with them in 2.6.21-rt6 ..
--- linux.orig/include/asm-arm/system.h
+++ linux/include/asm-arm/system.h
@@ -235,8 +235,9 @@ static inline void set_copro_access(unsi
* so enable interrupts over the context switch to avoid high
* latency.
*/
+#if 0 // preempt_rt hack, because warn_on in shedule.c triggers
#define __ARCH_WANT_INTERRUPTS_ON_CTXSW
-
+#endif
/*
* switch_to(prev, next) should switch from task `prev' to `next'
* `prev' will never be the same as `next'. schedule() itself
-
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