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From: "Peschier, J. (r&d)" <Jeroen.peschier@soz.pinkroccade.nl>
To: "'freebsd-questions@freebsd.org'" <freebsd-questions@freebsd.org>
Subject: AMD K6 internal cache problem
Date: Mon, 20 Aug 2001 10:18:50 +0200
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Hello,

I encountered a weird problem when installing FreeBSD 4.3-RELEASE on my AMD
K6/200MHz machine.

During during the initial boot the kernel panics due to a segmentation
fault. I have booted and installed from a known to work CD-ROM so it's not a
corrupt floppy set or anything.

After a lot of trial and error I got it installed by disabling the CPU
internal cache in the BIOS. It now runs, but with a severe speed penalty.
This is ofcourse a far from perfect solution.

I am unsure of the cause. The same system has run Windows 98 (with CPU
internal cache enabled) for 3 years, so I think it's safe to rule out
hardware bugs/misconfiguration.

Some questions:

- Is there something the FreeBSD kernel does with the CPU internal cache?
- Would building a kernel for CPU_I386 fix the problem? If memory serves me,
the Intel 386 had no internal CPU cache?

Best Regards,

Jeroen Peschier

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