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Date: Mon, 27 Oct 2008 19:36:46 -0400 (EDT) From: Steven Rostedt <rostedt@...dmis.org> To: Frédéric Weisbecker <fweisbec@...il.com> cc: Ingo Molnar <mingo@...e.hu>, Linux Kernel <linux-kernel@...r.kernel.org> Subject: Re: Ftrace doesn't work anymore on latest tip On Tue, 28 Oct 2008, Fr?d?ric Weisbecker wrote: > Hi, > > I tried to launch the function tracer with the latest -tip. > With DYNAMIC_FTRACE (I just tried one time), I set "function" to > current_trace and it blocks during writing. I can't > even switch to another console. > Without DYNAMIC_FTRACE I can set the tracer to function but it doesn't > produce any trace, even on trace or tracing_pipe. > > My config is in attachment. > I will try some revert...or some other tracers. > You might want to update your config (make oldconfig?) The latest tip has FUNCTION_TRACER instead of FTRACE. Also, the config you sent me, does not even have FTRACE on :-/ CONFIG_HAVE_FTRACE=y CONFIG_HAVE_DYNAMIC_FTRACE=y CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y CONFIG_TRACER_MAX_TRACE=y CONFIG_RING_BUFFER=y CONFIG_TRACING=y # CONFIG_FTRACE is not set # CONFIG_IRQSOFF_TRACER is not set # CONFIG_PREEMPT_TRACER is not set # CONFIG_SYSPROF_TRACER is not set CONFIG_SCHED_TRACER=y CONFIG_CONTEXT_SWITCH_TRACER=y -- Steve -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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