RE: Booting Installation on SunBlade
limit-ecache-size reduces the accessible cache size from 8Mb to 4MB on
enterprise systems. That was implemented to work around a bug in Solaris 2.6
when the 8MB CPUs (X2580A) came out. Solaris kernel was panicing during
CDROM boot with a "Fast Data Access MMU Miss" error. the workaround was to
issue the limit-ecache-size command, boot from CDROM and install a kernel
patch to boot regularly from disk.
Blade100 is far below that cache size, that could be one reason why the
command is not implemented.
The "Fast Data Access MMU Miss" is a rather common error, all I can say
since I do not know linux very well is don't stop there...
Raoul Volpe
Phone (877) 44 SOL EX (Toll Free)
Phone +001 407 396-1341 (outside US)
Fax +001 586 816 7086
raoul.volpe@solarisexpert.com
http://www.solarisexpert.com <http://www.solarisexpert.com/>
> -----Original Message-----
> From: Kent West [mailto:westk@acu.edu]
> Sent: Friday, June 21, 2002 11:11 AM
> To: debian-sparc@lists.debian.org
> Cc: kent.west@infotech.acu.edu
> Subject: Re: Booting Installation on SunBlade
>
>
> Kent West wrote:
>
> > I downloaded and burned the netinst.iso from
> > http://auric.debian.org/~bcollins/disks-sparc/current/netinst.iso.
> >
> > It boots the SunBlade 100 to the "boot:" prompt, and I can type "help"
> > and get a help screen, but if I just press ENTER to start the install,
> > I get the message "Fast Data Access MMU Miss" followed by the "ok"
> > prompt.
> >
>
> This appears to be related to cache. I found similar issues on Google
> (but not Debian/GNU/Linux-related). Apparently certain OpenBootProm
> (OPB) versions generate this error, and can be worked around by giving
> the command
>
> limit-ecache-size
>
> at the "go" prompt. Unfortunately, my SunBlade 100 doesn't seem to
> recognize that command. At boot-up, I see the message Open Boot Prom
> 4.3, so I assume that's the version of OPB I have, which is later than
> 3.2.21 which seems to be the recommended upgrade to solve this issue.
>
> Any one with a solution?
>
> Thanks!
>
> Kent
>
>
>
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