Re: [PATCH -rt] fix preempt count underflow in user_trace_stop

[Ingo Molnar]

* Michal Schmidt <mschmidt@xxxxxxxxxx> wrote:

> When playing with trace_user_trigger_irq in order to trace 
> IRQ->userspace latencies, I encountered a bug in the latency tracer. 
> If I have wakeup_timing enabled and attempt to stop the trace in my 
> userspace program, the system crashes. This is caused by an unbalanced 
> preempt_enable() which underflows the preempt count.

good catch! I've applied it,

	Ingo
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