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SubjectRe: Can't get MTRR to work with AMD K6-2
I have the exact same K6-2 and exactly the same problem!

I hope this bug will be fixed soon (or we can figure out what we're doing
wrong.

On Sat, 15 May 1999, A. Leidenfrost wrote:

> -----BEGIN PGP SIGNED MESSAGE-----
>
> I have anMy system has an AMD K6-2 and is running kernel 2.2.9 with our without
> the latest mtrr patch.
>
> There is an mtrr entry in /proc and the mtrr flag in /proc/cpuinfo is set:
>
> processor : 0
> vendor_id : AuthenticAMD
> cpu family : 5
> model : 8
> model name : AMD-K6(tm) 3D processor
> stepping : 12
> cpu MHz : 350.810582
> fdiv_bug : no
> hlt_bug : no
> sep_bug : no
> f00f_bug : no
> coma_bug : no
> fpu : yes
> fpu_exception : yes
> cpuid level : 1
> wp : yes
> flags : fpu vme de pse tsc msr mce cx8 sep mtrr pge mmx 3dnow
> bogomips : 699.60
>
> However, the command 'cat /proc/mtrr' produces no output. Also the command
> 'echo "base=0xf8000000 size=0x400000 type=write-combining" >! /proc/mtrr'
> has no effect.
>
> I have read 'Documentation/mtrr.txt' and tried to get a hint from
> 'arch/i386/kernel/mtrr.c'. Unfortunately this was without success.
>
> So, it would be very kind if someone could point out other sources of
> information or - even better - just tell me what I'm doing wrong :-)
>
> Thanks a lot for your time and best regards
>
> Andree
>
> PS: Please, cc any replies to 'leidenfrost@dkrz.de' as I am not subscribed to
> the list
> - ---
> Andree Leidenfrost PhD, GEOPHYSICIST
>
> Institute for Geophysics, University of Hamburg
> Bundesstrasse 55, 20146 Hamburg, Germany
> phone +49 40 4123 2984, fax +49 40 4123 5441
> http://www.agg.dkrz.de/andree
>
> finger u250011@gp12.dkrz.de for PGP public key
> PGP fingerprint = 5F FC 44 FF 84 71 C4 46 72 64 9A F0 EF 99 89 7C
>
>
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> Version: 2.6.3ia
> Charset: noconv
>
> iQB1AwUBNz2y+0NbWTbvj71ZAQFO5QL+LXQETPGT2SKVLDZbU7+rDrDtx3tYn/Ht
> 5ROtRPw944HmX1GJ/gq6vzm4YFDjI7et5YV2tHYU4w6j/ouvxnQZMroPQrdFiGd8
> rJZjPf6qU6SgnEAoiie+5DTrYqyNTJSg
> =6rSR
> -----END PGP SIGNATURE-----
>
> -
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