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Date: Wed, 10 Nov 2010 08:29:54 -0500
From: Christoph Hellwig <hch@infradead.org>
To: Jiri Olsa <jolsa@redhat.com>
Cc: mingo@elte.hu, rostedt@goodmis.org, andi@firstfloor.org,
        lwoodman@redhat.com, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 1/2] tracing,mm - add kernel pagefault tracepoint for x86
 & x86_64
Message-ID: <20101110132954.GA2101@infradead.org>
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On Wed, Nov 10, 2010 at 12:56:11PM +0100, Jiri Olsa wrote:
> +	TP_printk("task=%lx, address=%lx, regs=%lx",
> +		(unsigned long)__entry->task, (unsigned long)__entry->address,
> +			__entry->regs)

How exactly do you use the information in this trace point?  Especially
the undecoded pt_regs doesn't seem very useful to me at all.