From mboxrd@z Thu Jan  1 00:00:00 1970
From: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
Subject: Re: trace_printk() support in trace-cmd
Date: Sun, 12 Dec 2010 15:36:23 -0200
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Cc: Steven Rostedt <rostedt@goodmis.org>,
	linux-trace-users@vger.kernel.org, KVM list <kvm@vger.kernel.org>,
	Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
To: Avi Kivity <avi@redhat.com>
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Em Sun, Dec 12, 2010 at 06:35:24PM +0200, Avi Kivity escreveu:
> On 11/23/2010 05:45 PM, Steven Rostedt wrote:
> >Again, the work around is to replace your trace_printks() with
> >__trace_printk(_THIS_IP_, ...) or just modify the trace_printk() macro
> >in include/linux/kernel.h to always use the __trace_printk() version.
> 
> This works; I'm using it for now (I tried to use 'perf probe', but I
> get unpredictable results, like null pointer derefs).

Can you tell us which functions, environment, etc?

- Arnaldo