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Re: [PATCH v2 2.6.38-rc8-tip 0/20] 0: Inode based uprobes
- From: Thomas Gleixner <tglx at linutronix dot de>
- To: Andi Kleen <andi at firstfloor dot org>
- Cc: Andrew Morton <akpm at linux-foundation dot org>, Srikar Dronamraju <srikar at linux dot vnet dot ibm dot com>, Peter Zijlstra <peterz at infradead dot org>, Ingo Molnar <mingo at elte dot hu>, Steven Rostedt <rostedt at goodmis dot org>, Linux-mm <linux-mm at kvack dot org>, Arnaldo Carvalho de Melo <acme at infradead dot org>, Linus Torvalds <torvalds at linux-foundation dot org>, Masami Hiramatsu <masami dot hiramatsu dot pt at hitachi dot com>, Christoph Hellwig <hch at infradead dot org>, Ananth N Mavinakayanahalli <ananth at in dot ibm dot com>, Oleg Nesterov <oleg at redhat dot com>, Jim Keniston <jkenisto at linux dot vnet dot ibm dot com>, Roland McGrath <roland at hack dot frob dot com>, SystemTap <systemtap at sources dot redhat dot com>, LKML <linux-kernel at vger dot kernel dot org>, "Paul E. McKenney" <paulmck at linux dot vnet dot ibm dot com>
- Date: Tue, 15 Mar 2011 01:22:24 +0100 (CET)
- Subject: Re: [PATCH v2 2.6.38-rc8-tip 0/20] 0: Inode based uprobes
- References: <20110314133403.27435.7901.sendpatchset@localhost6.localdomain6> <20110314163028.a05cec49.akpm@linux-foundation.org> <20110314234754.GP2499@one.firstfloor.org>
On Tue, 15 Mar 2011, Andi Kleen wrote:
> > IOW, I'm trying to get an understanding of how you expect this feature
> > will actually become useful to end users - the kernel patch is only
> > part of the story.
>
> One user would be systemtap for user tracing as I understand. Systemtap has a
> userbase (at least I use it, although not for user tracing)
That's a brilliant reason to drop it right away. systemtap is the
least of our worries.
> Right now lots of distros apply ugly patchkits to handle this instead,
> which is not good (tm).
s/lots of distros/some enterprise distros where the management still
believes that this is a valuable feature add/
You deliberately skipped the first part of akpms question:
> How do you envisage these features actually get used? For example,
> will gdb be modified? Will other debuggers be modified or written?
How about answering this question first _BEFORE_ advertising
systemtap?
Thanks,
tglx