From: eeh@netbsd.org
Subject: Re: kernel stack overflow detection
Date: 26 Jun 2002 16:05:23 -0000

> | KSTACK_CHECK_MAGIC scans kernel stack on each context switch.
> | so it affects performance too much.
> |
> | KSTACK_CHECK_DR0 uses a debug register exclusively, so
> | people that want to use it for other purposes will not want to
> | enable it.
> 
> Why are you changing MI code?  Can't it be done all in MD code?

there're 2 things. (sorry for confusing)

KSTACK_CHECK_MAGIC is (intended to be) MI.
KSTACK_CHECK_DR0 is i386-specific.

> If you really need it in MI code, does this work on anything other
> than x86?  Have you tested it on anything else?

only tested on i386.

---
YAMAMOTO Takashi<yamt@mwd.biglobe.ne.jp>