Not sure about the 2.4 series, but I know the 2.2 series had a setting the
defaulted to 1 Gig addressable memory that could be increased to 2 Gig.
Jamin W. Collins
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]
Sent: Friday, October 06, 2000 12:22 PM
To: [EMAIL PROTECTED]
Subject: 1.5GB RAM seen by BIOS, but only 1.0GB seen by 2.4.0-test9 @ RH7.0
!?
I have three 512MB PC133 dimms in an AMD T-bird 950MHz / Abit KT7
system running RH7.0. All 1.5GB are recognized by my BIOS, but only
1.0GB is recognized by linux. I compiled kernel 2.4.0-test9 with
HIGHMEM4G=y:
> # CONFIG_NOHIGHMEM is not set
> CONFIG_HIGHMEM4G=y
> # CONFIG_HIGHMEM64G is not set
> CONFIG_HIGHMEM=y
> CONFIG_MTRR=y
I tried appending various memory sizes during boot, but if I use
anything greater than "mem=1000M" the kernel hangs during boot after
the line:
> Freeing unused kernel memory: 192k freed
I compiled the kernel with kgcc. The appropriate lines from
/usr/src/linux/Makefile:
> HOSTCC = kgcc
(snip...)
> CC = $(CROSS_COMPILE)kgcc
I have tried several tweaks to eliminate the possibility that this is
a hardware problem, such as lowering my FSB speed, CPU speed, removing
interleaving, and increasing DRAM delay. I see no change whatsoever.
Can anyone suggest a way I can get linux 2.4 to use all of my RAM?
Thanks,
Dave
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