From: Andrew Morton <akpm@osdl.org>
To: prasanna@in.ibm.com
Cc: ak@suse.de, davem@davemloft.net, suparna@in.ibm.com,
richardj_moore@uk.ibm.com, linux-kernel@vger.kernel.org
Subject: Re: [2/3 PATCH] Kprobes: User space probes support- readpage hooks
Date: Mon, 20 Mar 2006 18:12:55 -0800 [thread overview]
Message-ID: <20060320181255.16932b0d.akpm@osdl.org> (raw)
In-Reply-To: <20060320134839.GF8662@in.ibm.com>
Prasanna S Panchamukhi <prasanna@in.ibm.com> wrote:
>
> The basic idea is to insert probes on user applications which may or
> may not be in memory, at the time of probe insertion.
umm yes, but what for?
What does this entire feature *do*? Why does Linux need it?
OK, so it allows kernel modules to set breakpoints (via debug traps) into
user code. But why do we want to be able to do that? What are the
use-cases?
This may sound like boringly obvious stuff to you, but without a complete
problem statement from the designers, how are we to evaluate their proposed
solution?
next prev parent reply other threads:[~2006-03-21 2:16 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-03-20 6:07 [0/3] Kprobes: User space probes support Prasanna S Panchamukhi
2006-03-20 6:09 ` [1/3 PATCH] Kprobes: User space probes support- base interface Prasanna S Panchamukhi
2006-03-20 6:10 ` [2/3 PATCH] Kprobes: User space probes support- readpage hooks Prasanna S Panchamukhi
2006-03-20 6:11 ` [3/3 PATCH] Kprobes: User space probes support- single stepping out-of-line Prasanna S Panchamukhi
2006-03-20 11:09 ` Andrew Morton
2006-03-20 11:24 ` Arjan van de Ven
2006-03-20 14:05 ` Prasanna S Panchamukhi
2006-03-20 14:13 ` Arjan van de Ven
2006-03-20 11:32 ` Nick Piggin
2006-03-20 13:52 ` Prasanna S Panchamukhi
2006-03-20 13:48 ` Prasanna S Panchamukhi
2006-03-20 20:40 ` Andrew Morton
2006-03-21 2:02 ` Prasanna S Panchamukhi
2006-03-21 10:05 ` Andrew Morton
2006-03-21 11:05 ` Richard J Moore
2006-03-21 11:13 ` Suparna Bhattacharya
2006-03-21 12:23 ` Prasanna S Panchamukhi
2006-03-20 10:53 ` [2/3 PATCH] Kprobes: User space probes support- readpage hooks Andrew Morton
2006-03-20 13:48 ` Prasanna S Panchamukhi
2006-03-21 2:12 ` Andrew Morton [this message]
2006-03-21 9:14 ` Richard J Moore
2006-03-21 11:14 ` Christoph Hellwig
2006-03-21 11:38 ` Richard J Moore
2006-03-21 12:40 ` Theodore Ts'o
2006-03-21 11:28 ` Christoph Hellwig
2006-03-21 11:42 ` Richard J Moore
2006-03-21 12:15 ` Christoph Hellwig
2006-03-21 16:17 ` Richard J Moore
2006-03-20 11:10 ` Andrew Morton
2006-03-20 13:59 ` Prasanna S Panchamukhi
2006-03-20 10:42 ` [1/3 PATCH] Kprobes: User space probes support- base interface Andrew Morton
2006-03-20 13:48 ` Prasanna S Panchamukhi
2006-03-21 11:39 ` [0/3] Kprobes: User space probes support Christoph Hellwig
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