Re: [RFC] 4KB stack + irq stack for x86

From: Larry McVoy (lm@bitmover.com)
Date: Wed Jun 05 2002 - 19:24:49 EST


On Wed, Jun 05, 2002 at 04:13:42PM -0700, David S. Miller wrote:
> From: Benjamin LaHaise <bcrl@redhat.com>
> Date: Wed, 5 Jun 2002 18:31:52 -0400
>
> On Wed, Jun 05, 2002 at 05:15:23PM -0500, Steve Lord wrote:
> > Just what are the tasks you normally run - and how many code
> > paths do you think there are out there which you do not run. XFS
> > might get a bit stack hungry in places, we try to keep it down,
> > but when you get into file system land things can stack up quickly:
>
> You already lose in that case today, as multiple irqs may come in
> from devices and eat up the stack.
>
> I agree with Ben, if things explode due to stack overflow with his
> changes they are almost certain to explode before his changes.

Just a "me too". I like Ben's patch, it seems like it is a sort of
"bloat meter", if you overflow the stack that suggests something is
wrong, and it isn't stack size.

-- 
---
Larry McVoy            	 lm at bitmover.com           http://www.bitmover.com/lm 
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