From: Andi Kleen <ak@suse.de>
To: George Anzinger <george@mvista.com>
Cc: akpm@osdl.org, amitkale@emsyssoft.com, pavel@ucw.cz,
linux-kernel@vger.kernel.org, piggy@timesys.com,
trini@kernel.crashing.org
Subject: Re: kgdb support in vanilla 2.6.2
Date: Thu, 4 Mar 2004 01:50:56 +0100 [thread overview]
Message-ID: <20040304015056.4d2cc3ee.ak@suse.de> (raw)
In-Reply-To: <40467BC3.7030708@mvista.com>
On Wed, 03 Mar 2004 16:43:47 -0800
George Anzinger <george@mvista.com> wrote:
> Andi Kleen wrote:
> > On Tue, Mar 02, 2004 at 01:27:51PM -0800, Andrew Morton wrote:
> >
> >>George Anzinger <george@mvista.com> wrote:
> >>
> >>> Often it is not clear just why we are in the stub, given that
> >>>we trap such things as kernel page faults, NMI watchdog, BUG macros and such.
> >>
> >>Yes, that can be confusing. A little printk on the console prior to
> >>entering the debugger would be nice.
> >
> >
> > What I did for kdb and panic some time ago was to flash the keyboard
> > lights. If you use a unique frequency (different from kdb
> > and from panic) it works quite nicely.
>
> Assuming a key board and a clear (no spin locks) path to it. Still it only says
I think it's reasonable to just write to the keyboard without any locking.
The keyboard driver will recover.
> we are in kgdb, now why.
The big advantage is that it works even when you are in X (like most people)
printks are often not visible.
-Andi
>
next prev parent reply other threads:[~2004-03-04 0:51 UTC|newest]
Thread overview: 52+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20040204230133.GA8702@elf.ucw.cz.suse.lists.linux.kernel>
[not found] ` <20040204155452.4 9c1eba8.akpm@osdl.org.suse.lists.linux.kernel>
[not found] ` <20040204152137.500e8319.akpm@osdl.org.suse.lists.linux.kernel>
[not found] ` <402182B8.7030900@timesys.com.suse.lists.linux.kernel>
[not found] ` <20040204155452.49c1eba8.akpm@osdl.org.suse.lists.linux.kernel>
2004-02-05 3:11 ` kgdb support in vanilla 2.6.2 Andi Kleen
2004-02-05 12:16 ` Pavel Machek
2004-02-05 17:50 ` Amit S. Kale
2004-02-06 2:20 ` Andi Kleen
2004-02-06 11:58 ` Amit S. Kale
2004-02-06 12:16 ` Andi Kleen
2004-02-06 13:05 ` Amit S. Kale
2004-02-06 13:24 ` Andi Kleen
2004-02-06 13:44 ` Amit S. Kale
2004-02-28 0:05 ` George Anzinger
2004-03-01 9:38 ` Amit S. Kale
2004-03-02 21:10 ` George Anzinger
2004-03-02 21:27 ` Andrew Morton
2004-03-02 23:52 ` George Anzinger
2004-03-03 5:08 ` Amit S. Kale
2004-03-03 16:06 ` Tom Rini
2004-03-04 0:42 ` George Anzinger
2004-03-03 10:05 ` Andi Kleen
2004-03-04 0:43 ` George Anzinger
2004-03-04 0:50 ` Andi Kleen [this message]
2004-03-04 5:06 ` Amit S. Kale
2004-03-04 5:18 ` Andrew Morton
2004-03-04 5:29 ` Amit S. Kale
2004-03-04 5:44 ` Andrew Morton
2004-03-04 20:54 ` George Anzinger
2004-03-04 21:03 ` Tom Rini
2004-03-04 23:15 ` George Anzinger
2004-03-04 13:01 ` Andi Kleen
2004-02-11 14:52 ` Amit S. Kale
2004-02-10 21:56 ` George Anzinger
2004-02-13 19:42 ` Andi Kleen
2004-02-12 1:34 ` George Anzinger
2004-02-12 8:33 ` Andi Kleen
2004-02-27 21:09 ` Piet Delaney
2004-02-27 21:58 ` George Anzinger
2004-02-27 23:33 ` Pavel Machek
2004-02-04 23:01 Pavel Machek
2004-02-04 23:21 ` Andrew Morton
2004-02-04 23:24 ` Pavel Machek
2004-02-04 23:45 ` Andrew Morton
2004-02-04 23:55 ` Tom Rini
2004-02-05 0:16 ` Andrew Morton
2004-02-05 0:23 ` Tom Rini
2004-02-20 0:15 ` George Anzinger
2004-02-04 23:39 ` La Monte H.P. Yarroll
2004-02-04 23:54 ` Andrew Morton
2004-02-05 1:19 ` Pavel Machek
2004-02-20 0:24 ` George Anzinger
2004-02-05 0:39 ` Pavel Machek
2004-02-04 23:52 ` Tom Rini
2004-02-05 0:17 ` Paul Mundt
2004-02-05 0:32 ` Tom Rini
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