From: Christoph Hellwig <hch@infradead.org>
To: Prasanna S Panchamukhi <prasanna@in.ibm.com>
Cc: akpm@osdl.org, Andi Kleen <ak@suse.de>,
davem@davemloft.net, suparna@in.ibm.com,
richardj_moore@uk.ibm.com, linux-kernel@vger.kernel.org
Subject: Re: [0/3] Kprobes: User space probes support
Date: Tue, 21 Mar 2006 11:39:12 +0000 [thread overview]
Message-ID: <20060321113912.GC5460@infradead.org> (raw)
In-Reply-To: <20060320060745.GC31091@in.ibm.com>
On Mon, Mar 20, 2006 at 11:37:45AM +0530, Prasanna S Panchamukhi wrote:
> This patch set provides the basic infrastructure for user-space probes
> based on IBM's Dprobes. Similar to kprobes, user-space probes uses the
> breakpoint mechanism to insert probes. User has to write a kernel module
> to insert probes in the executable/library and specify the handlers in
> the kernel module.
Doing this from kernelspace is wrong. It should be done from userspace,
best using a systemcall. Of couse the handlers can't work as-is you'd
need to redo that to work similarlt to ptrace - which will hopefully
allow some code reuse aswell.
And please - independent of the best api in this case - please don't ever
submit large amounts of code again that don't have any in-tree user.
prev parent reply other threads:[~2006-03-21 11:39 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
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 ` Christoph Hellwig [this message]
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