From: Keith Owens <kaos@ocs.com.au>
To: Andi Kleen <ak@suse.de>
Cc: linux-kernel@vger.kernel.org
Subject: Re: [CHECKER] large stack variables (>=1K) in 2.4.4 and 2.4.4-ac8
Date: Fri, 25 May 2001 18:37:04 +1000 [thread overview]
Message-ID: <26797.990779824@ocs3.ocs-net> (raw)
In-Reply-To: Your message of "Fri, 25 May 2001 10:27:53 +0200." <20010525102753.A26379@gruyere.muc.suse.de>
On Fri, 25 May 2001 10:27:53 +0200,
Andi Kleen <ak@suse.de> wrote:
>On Fri, May 25, 2001 at 06:25:57PM +1000, Keith Owens wrote:
>> Nothing in arch/i386/kernel/traps.c uses a task gate, they are all
>> interrupt, trap, system or call gates. I guarantee that kdb on ix86
>> and ia64 uses the same kernel stack as the failing task, the starting
>> point for the kdb backtrace is itself and it does not follow segment
>> switches.
>
>I would consider this a bug in kdb then.
No more of a bug than panic(), show_stack(), printk() and all the other
routines that get called during a kernel problem. They all use the
current kernel stack and they work almost all the time. Kernel stack
overflows are symptoms of bad code, so fix the code, not the recovery
routines.
next prev parent reply other threads:[~2001-05-25 8:37 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-05-24 21:10 [CHECKER] large stack variables (>=1K) in 2.4.4 and 2.4.4-ac8 Dawson Engler
2001-05-24 22:40 ` Anton Altaparmakov
2001-05-24 23:08 ` Andreas Dilger
2001-05-24 23:33 ` Andi Kleen
2001-05-25 5:20 ` Keith Owens
2001-05-25 6:33 ` Andreas Dilger
2001-05-25 6:53 ` Keith Owens
2001-05-25 8:20 ` Andi Kleen
2001-05-25 8:31 ` Keith Owens
2001-05-25 8:39 ` Andi Kleen
2001-05-25 14:03 ` Oliver Neukum
2001-05-25 14:07 ` Andi Kleen
2001-05-25 15:45 ` dean gaudet
2001-05-25 16:34 ` Jonathan Lundell
2001-05-25 18:37 ` dean gaudet
2001-05-25 17:49 ` Jeff Dike
2001-05-25 7:11 ` David Welch
2001-05-25 8:08 ` Keith Owens
2001-05-25 15:31 ` dean gaudet
2001-05-25 15:49 ` Keith Owens
2001-05-25 18:46 ` dean gaudet
2001-05-25 8:14 ` Andi Kleen
2001-05-25 8:25 ` Keith Owens
2001-05-25 8:27 ` Andi Kleen
2001-05-25 8:37 ` Keith Owens [this message]
2001-05-25 8:17 ` Andi Kleen
2001-05-25 11:52 ` Brian Gerst
2001-05-25 11:53 ` Andi Kleen
2001-05-25 12:07 ` Brian Gerst
2001-05-25 3:38 ` Andrew Morton
-- strict thread matches above, loose matches on Subject: below --
2001-05-24 23:01 Mikael Pettersson
2001-05-25 2:48 ` Dawson Engler
2001-05-25 3:00 ` Alexander Viro
2001-05-25 3:07 ` Dawson Engler
2001-05-25 4:23 Dunlap, Randy
2001-07-03 9:15 VDA
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