Subject: Re: 1.5 ALPHA on Cyrix
To: Bill Sommerfeld <sommerfeld@orchard.arlington.ma.us>
From: Jared D. McNeill <jmcneill@invisible.yi.org>
List: port-i386
Date: 07/14/2000 21:31:40
On Sat, 15 Jul 2000, Bill Sommerfeld wrote:
> Have you verified that the calls to pmap_zero_page you commented out
> were being executed at all on your system?

Somebody posted the "fix" on current-users a while back; that's where I
got that information. I don't know if it works or not.

> > 	sys/arch/i386/include/pmap.h:
> > 		Comment out the definition for PMAP_PAGEIDLEZERO()
> 
> This is not a "fix".  this disables a significant performance
> optimization new in 1.5.

See above.

> > All I did was disable the in-kernel debugger, so I'm not seeing the
> > panics. I don't know if they're still happening or not; that's why
> > solution 1 is probably the best route.
> 
> If the kernel debugger is not enabled, "panic" will crash the system.
> I'd expect that you'd notice that.

Sorry, I should have made myself clearer; I was refering to the entire
'Diagnostic/debugging support options' section of the kernel config file.

Jared