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From: Andi Kleen <andi@firstfloor.org>
To: "Frank Ch. Eigler" <fche@redhat.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
	Andi Kleen <andi@firstfloor.org>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	Ingo Molnar <mingo@elte.hu>,
	linux-kernel@vger.kernel.org, Roland McGrath <roland@redhat.com>,
	Thomas Gleixner <tglx@linutronix.de>,
	"H. Peter Anvin" <hpa@zytor.com>
Subject: Re: [git pull] kgdb-light -v10
Date: Tue, 12 Feb 2008 21:16:53 +0100	[thread overview]
Message-ID: <20080212201653.GA8005@one.firstfloor.org> (raw)
In-Reply-To: <20080212193451.GE19619@redhat.com>

On Tue, Feb 12, 2008 at 02:34:51PM -0500, Frank Ch. Eigler wrote:
> Hi -
> 
> On Tue, Feb 12, 2008 at 10:20:10AM -0800, Andrew Morton wrote:
> > [...]  Bear in mind that one of the things you do with kgdb is to
> > modify kernel memory [...]
> 
> Just for completeness, keep in mind that one can already 
> do these sorts of things on a batch basis using systemtap:

You don't even need systemtap: it has been always possible with
gdb -write vmlinux /proc/kcore

The only value add of the kgdb stub is really that you can single
step too and do post mortem (although the later works fine using
kdump/crash these days too)

-Andi

  reply	other threads:[~2008-02-12 19:41 UTC|newest]

Thread overview: 52+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-02-11  1:53 kgdb in git-x86#mm review Andi Kleen
2008-02-11 15:32 ` Frank Ch. Eigler
2008-02-11 16:11   ` Andi Kleen
2008-02-11 16:21   ` [git pull] kgdb-light -v8, (was: Re: kgdb in git-x86#mm review) Ingo Molnar
2008-02-11 16:41     ` [git pull] kgdb-light -v8, Jan Kiszka
2008-02-11 16:54       ` Ingo Molnar
2008-02-11 17:10     ` [git pull] kgdb-light -v8, (was: Re: kgdb in git-x86#mm review) Andi Kleen
2008-02-11 23:03       ` [git pull] kgdb-light -v9 Ingo Molnar
2008-02-12 10:03         ` Andi Kleen
2008-02-12  9:35           ` Sam Ravnborg
2008-02-12 10:26           ` Roland McGrath
2008-02-12 10:34             ` Ingo Molnar
2008-02-12 11:27           ` [git pull] kgdb-light -v10 Ingo Molnar
2008-02-12 12:19             ` Andi Kleen
2008-02-12 12:38               ` Ingo Molnar
2008-02-12 13:30                 ` Jason Wessel
2008-02-12 14:39                   ` Andi Kleen
2008-02-12 14:35                     ` Jason Wessel
2008-02-12 15:36                       ` Andi Kleen
2008-02-12 16:21                         ` Jason Wessel
2008-02-12 17:10                           ` Andi Kleen
2008-02-12 16:48                             ` Jason Wessel
2008-02-12 13:50                 ` Andi Kleen
2008-02-12 15:16                   ` Ingo Molnar
2008-02-12 15:28                     ` Andi Kleen
2008-02-12 15:28                   ` Ingo Molnar
2008-02-12 16:11                     ` Andi Kleen
2008-02-12 16:24                       ` Ingo Molnar
2008-02-12 17:01                         ` Andi Kleen
2008-02-12 16:25                       ` Linus Torvalds
2008-02-12 16:42                         ` Ingo Molnar
2008-02-12 17:07                         ` Andi Kleen
2008-02-15 12:35                           ` [RFC][PATCH] modular kgdb-light (was: Re: [git pull] kgdb-light -v10) Jan Kiszka
2008-02-15 13:32                             ` Andi Kleen
2008-02-15 20:24                               ` [RFC][PATCH] modular kgdb-light Jason Wessel
2008-02-15 20:36                         ` [git pull] kgdb-light -v10 Jason Wessel
2008-02-12 16:46                     ` Linus Torvalds
2008-02-12 17:01                       ` Ingo Molnar
2008-02-12 17:10                         ` Ingo Molnar
2008-02-12 18:20                       ` Andi Kleen
2008-02-12 18:11                         ` Linus Torvalds
2008-02-12 19:22                           ` Andi Kleen
2008-02-12 19:01                             ` Linus Torvalds
2008-02-12 18:20                         ` Andrew Morton
2008-02-12 19:16                           ` Andi Kleen
2008-02-12 21:01                             ` Ingo Molnar
2008-02-12 19:34                           ` Frank Ch. Eigler
2008-02-12 20:16                             ` Andi Kleen [this message]
2008-02-12 13:18             ` Domenico Andreoli
2008-02-12 13:59               ` Jason Wessel
2008-02-12 15:45                 ` Domenico Andreoli
2008-02-11 16:03 ` kgdb in git-x86#mm review Mark Lord

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