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Date: Sat, 30 May 2009 04:05:03 -0400
From: Christoph Hellwig <hch@infradead.org>
To: Masami Hiramatsu <mhiramat@redhat.com>
Cc: Ingo Molnar <mingo@elte.hu>, Steven Rostedt <rostedt@goodmis.org>,
       lkml <linux-kernel@vger.kernel.org>, Avi Kivity <avi@redhat.com>,
       "H. Peter Anvin" <hpa@zytor.com>,
       Frederic Weisbecker <fweisbec@gmail.com>,
       Ananth N Mavinakayanahalli <ananth@in.ibm.com>,
       Andrew Morton <akpm@linux-foundation.org>,
       Andi Kleen <andi@firstfloor.org>, Jim Keniston <jkenisto@us.ibm.com>,
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       Christoph Hellwig <hch@infradead.org>,
       "Frank Ch. Eigler" <fche@redhat.com>, Tom Zanussi <tzanussi@gmail.com>,
       systemtap <systemtap@sources.redhat.com>, kvm <kvm@vger.kernel.org>,
       DLE <dle-develop@lists.sourceforge.net>
Subject: Re: [PATCH -tip v8 0/7] tracing: kprobe-based event tracer and x86
	instruction decoder
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Small question to start with: What's your (or Hitachi s/Red Hat's) use case
for this?  It's obviously really cool technology, but I fear without
some good user space side to make it easy to use it will most likely
bit-rot which would be sad.