Summary:: boot cdrom gives error Fast Data Access MMU miss.

Original Message
All,

> Sun Guru,
> 
> I got a E3500, and A5200 storage.
> I am trying to load Solaris 2.51 11/97 OS , and it gives me following
error.
> 
> OK, boot cdrom
> 
> Loading  /platform/sun4u/ufsboot
> 
> Fast Data Access MMU miss.
> Any Idea.

I will summarize it.
**************************************************
I got several response. Special thanks to
Casper Dik [Casper.Dik@Sun.COM]
Bond, Ryan [rbond@ou.edu]
Maccy [maccy@maccomms.co.uk]   
**************************************************
SOLUTION:

Yes, we have got 400 Mhz/8MB UltraSPARC Modules.

I did the following:

Turned it off the Auto-reboot.
Reset-all
Come back at OK, prompt

limit-ecache-size

it worked. Great.


-----Original Message-----
From: Maccy [mailto:maccy@maccomms.co.uk]
Sent: Thursday, October 25, 2001 10:20 AM
To: Raj, Dilip (SD-EX)
Subject: Re: boot cdrom gives the folowing error




On Thu, 25 Oct 2001, Raj, Dilip (SD-EX) wrote:
> Sun Guru,
> 
> I got a E3500, and A5200 storage.
> I am trying to load Solaris 2.51 11/97 OS , and it gives me following
error.
> 
> OK, boot cdrom
> 
> Loading  /platform.sun4u/ufsboot
> 
> Fast Data Access MMU miss.
> Any Idea.

Hi there,

Are you by any chance using CPUs => 400 MHz ???

To sort the Fast Data... error, set the AUTO-BOOT? to FALSE from OK
prompt, and then type reset-all. When the system
boots and goes to the OK prompt, type 'limit-ecache-size' and then boot or
'boot-cdrom' etc..

Problem is with Solaris 2.5, 2.6 and early versions of 7 not being able to
handle 400=> CPUs with 8Mb Ecache... 4Mb seems ok but
can still be flaky. You need to boot as above and then (for Sol 2.6) load
a full rec. patch set.

Hope this helps, but let me know if you still get problems.

Regards,

Mark Mahabir