[ale] Disabling Cache?

James P. Kinney III jkinney at localnetsolutions.com
Sun Jul 10 10:44:40 EDT 2005


I don't think memtest checks cache ram. Or if it does, I've missed the
config.

On Sat, 2005-07-09 at 11:56 -0400, Jeff Hubbs wrote:
> I had an HP Vectra with a removable cache module that would periodically
> just die, whether it was WinME or Linux (with WinME, hardware faults are
> hard to pinpoint because the OS crashes so often).  In this case,
> though, I seem to recall that memtest86 could run forever without a
> problem.  Removing the cache module did slow the machine down, but it
> never died again.  
> 
> Jeff
> 
> 
> On Fri, 2005-07-08 at 16:51 -0400, J o n K e t t e n h o f e n wrote:
> > Just my 2 cents worth:
> > 
> > I have an ASUS P3B-F with an 850MHz Piii and the BIOS allows
> > disabling the Level 1 and Level 2 caches each individually.
> > You can test the effectiveness of this with memtest.
> > 
> > 
> > 
> > >I have an old machine that I need to use from time to time.  PIII 700MHz.
> > >
> > >It has a unique (within my office) configuration of hardware raid and
> > >scsi tape that I don't want to replicate right now.
> > >
> > >It has been unreliable recently and I just finished running Memtest on
> > >it.  It runs fine if I have cache disabled, but it runs poorly if I
> > >have cache enabled (via memtest).
> > >
> > >Is there a way to boot Linux with the cache disabled?  (I know it will
> > >be slow, but I just need to restore one tape.)
> > >
> > >I prefer to use SuSE, and I have SuSE boot CDs from 8.0 forward.
> > >
> > >Greg
> > >--
> > >Greg Freemyer
> > >The Norcross Group
> > >Forensics for the 21st Century
> > >_______________________________________________
> > >Ale mailing list
> > >Ale at ale.org
> > >http://www.ale.org/mailman/listinfo/ale
> > 
> > _______________________________________________
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> 
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-- 
James P. Kinney III          \Changing the mobile computing world/
CEO & Director of Engineering \          one Linux user         /
Local Net Solutions,LLC        \           at a time.          /
770-493-8244                    \.___________________________./
http://www.localnetsolutions.com

GPG ID: 829C6CA7 James P. Kinney III (M.S. Physics)
<jkinney at localnetsolutions.com>
Fingerprint = 3C9E 6366 54FC A3FE BA4D 0659 6190 ADC3 829C 6CA7
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