Re: [PATCH] tracing/ftrace: use preempt_enable_no_resched_notracein ring_buffer_time_stamp()

[Steven Rostedt]

On Tue, 16 Dec 2008, Fr?d?ric Weisbecker wrote:
> 
> The hard reboots I've seen are related to x86-64 while
> disabling/reenabling a CPU through /sys/device/system/cpu
> No tracer was enabled at these times (the problem still remains with
> latest updates on -tip for half an hour).

Do you have STACK_TRACER enabled?

-- Steve
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