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Re: bus error IRQ

To: Joachim Schmitz <jojo@unixpc.dus.Tandem.COM>
Subject: Re: bus error IRQ
From: Ralf Baechle <ralf@uni-koblenz.de>
Date: Tue, 16 Dec 1997 13:24:07 +0100
Cc: linux@cthulhu.engr.sgi.com
In-reply-to: <199712161036.LAA07650@unixpc.germany.tandem.com>; from Joachim Schmitz on Tue, Dec 16, 1997 at 11:36:08AM +0100
References: <199712161036.LAA07650@unixpc.germany.tandem.com>
Sender: owner-linux@cthulhu.engr.sgi.com
On Tue, Dec 16, 1997 at 11:36:08AM +0100, Joachim Schmitz wrote:

> I'm new to this list and currently trying to setup my Indy for Linux.
> For a start I tried just to boot vmlinux-970916-efs and vmlinux-2.1.67
> ... without success. Both boots ends up with:
> 
> boot vmlinux-2.1.67
> PROMLIB: SGI ARCS firmware Version 1 Revision 10
> PROMLIB: Total free ram 64376832 bytes (62868k,61MB)
> ARCH: SGI-IP22
> CPU: MIPS-R4600 FPU<MIPS-R4600FPC> ICACHE DCACHE
> Loading R4000 MMU routines.
> CPU revision is: 00002020
> Primary ICACHE 16k (linesize 32 bytes)
> Primary DCACHE 16k (linesize 32 bytes)
> R4600/R5000 SCACHE size 0K linesize 32 bytes
                          ^^
That's the problem, there is a kernel bug which prevents Linux from
working on R4600/R5000 Indys without second level cache.  My next
kernel release will fix that.

  Ralf

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