From: William Lee Irwin III <wli@holomorphy.com>
To: Breno <brenosp@brasilsec.com.br>,
Kernel List <linux-kernel@vger.kernel.org>
Subject: Re: stack overflow
Date: Fri, 12 Sep 2003 16:06:01 -0700 [thread overview]
Message-ID: <20030912230601.GU4306@holomorphy.com> (raw)
In-Reply-To: <20030912165047.Z18851@schatzie.adilger.int>
On Fri, Sep 12, 2003 at 04:50:47PM -0600, Andreas Dilger wrote:
> Well, with the exception of the fact that STACK_LIMIT is 8MB, and kernel
> stacks are only 8kB (on i386)...
> Also, see "do_IRQ()" (i386) for CONFIG_DEBUG_STACKOVERFLOW to see this already.
What he actually wants is in-kernel user stack overflow checking, which
is basically impossible since user stacks are demand paged. He's been
told this before and failed to absorb it.
There have been attempts to use i386 segmentation for stack limit
checks written but they should probably not be confused with this.
-- wli
next prev parent reply other threads:[~2003-09-12 23:04 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-09-12 17:53 stack overflow Breno
2003-09-12 22:50 ` Andreas Dilger
2003-09-12 19:14 ` Breno
2003-09-12 23:06 ` William Lee Irwin III [this message]
2003-09-12 19:23 ` Breno
2003-09-12 23:18 ` Alan Cox
2003-09-12 23:25 ` William Lee Irwin III
2003-09-12 23:18 ` stack overflow - kernel thread Breno
-- strict thread matches above, loose matches on Subject: below --
2003-01-24 7:08 Stack overflow Madhavi
2003-01-24 7:53 ` Linux Geek
2003-01-24 15:32 ` GrandMasterLee
2003-01-24 15:41 ` Madhavi
2003-01-24 16:42 ` Richard B. Johnson
2003-01-24 16:52 ` Gianni Tedesco
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