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neurosis
Apprentice
Joined: 04 May 2003
Posts: 170
Location: Ottawa, Canada
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 Posted: Tue Aug 19, 2003 5:47 pm Post subject: Cannot enable MTRR on AMD K6-2 |
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Hi folks - I'm having problems enabling MTRR on a system with an AMD K6-2 CPU. From what I've read on various newsgroups, this processor should support MTRRs. However, when I check out /proc/cpuinfo, MTRR is not listed.
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cat /proc/cpuinfo
processor : 0
vendor_id : AuthenticAMD
cpu family : 5
model : 8
model name : AMD-K6(tm) 3D processor
stepping : 0
cpu MHz : 332.746
cache size : 64 KB
fdiv_bug : no
hlt_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 mmx syscall 3dnow
bogomips : 663.55
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In addition, there is no /proc/mtrr.
I am careful to enable it in my kernel config, as well as set the correct processor type; the line:
CONFIG_MTRR=y
.. is in my config file after using genkernel --config to build it.
Has anyone else experienced this, or know what might be causing it?
I'm using gentoo-sources-2.4.20-r5.
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There is no evil greater than that committed by those who claim to do their deeds in the name of God.
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Gruffi
Apprentice
Joined: 15 Aug 2003
Posts: 209
Location: Antwerpen - Flanders - Belgium
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| Posted: Tue Aug 19, 2003 5:54 pm Post subject: |
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Are you sure you mounted /boot first before copying your bzImage there? I forgot that when i first tried to enable mtrr 
mount /dev/hdX /boot
cp /usr/src/linux/arch/i386/boot/bzImage /boot
umount /boot
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neurosis
Apprentice
Joined: 04 May 2003
Posts: 170
Location: Ottawa, Canada
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| Posted: Tue Aug 19, 2003 6:09 pm Post subject: |
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| Quote: | | Are you sure you mounted /boot first before copying your bzImage there? I forgot that when i first tried to enable mtrr |
Defenitely a good suggestion -- this burned me for hours when I first started using Gentoo.. 
But genkernel automatically mounts /boot. Just to be sure, I double checked that it was mounted, and checked the datestamps on the compiled kernel images.
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There is no evil greater than that committed by those who claim to do their deeds in the name of God.
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