I'm running my ftrace tests on my PAsemi box with your patches and
things are not going so well.
Just this patch alone causes my first stress test to lock up, and
things don't go so well after that.
INFO: rcu_sched detected stalls on CPUs/tasks: {} (detected by 1, t=5253
jiffies, g=3603,
We added -mno-sched-epilog in commit 7563dc645853 (powerpc:
Work around gcc's -fno-omit-frame-pointer bug).
We shouldn't apply -fno-omit-frame-pointer on powerpc any more (it's
protected by CONFIG_FRAME_POINTER and CONFIG_SCHED_OMIT_FRAME_POINTER).
It's also an undocumented gcc option, so lets