Re: MTRR Problem with 2.6.18-4

From: Marco
Date: Mon Apr 02 2007 - 13:09:24 EST


Marco ha scritto:
Hi everybody,

Laptop: Sony VAIO VGN-SZ3VP/X
Kernel: 2.6.18-4

I have the following problem with mtrr:

#cat /proc/mtrr
reg00: base=0x00000000 (?? 0MB), size=2048MB: write-back, count=1
reg01: base=0x7ff00000 (2047MB), size=?? 1MB: uncachable, count=1

#lspci -v
01:00.0 VGA compatible controller: nVidia Corporation GeForce Go 7400 (rev a1) (prog-if 00 [VGA])
Subsystem: Sony Corporation Unknown device 81e6
Flags: bus master, fast devsel, latency 0, IRQ 5
Memory at dd000000 (32-bit, non-prefetchable) [size=16M]
Memory at c0000000 (64-bit, prefetchable) [size=256M]
Memory at dc000000 (64-bit, non-prefetchable) [size=16M]
Capabilities: [60] Power Management version 2
Capabilities: [68] Message Signalled Interrupts: Mask- 64bit+ Queue=0/0 Enable-
Capabilities: [78] Express Endpoint IRQ 0
Capabilities: [100] Virtual Channel
Capabilities: [128] Power Budgeting

Kernel boot option:
kernel /vmlinuz-2.6.18-4-686 root=/dev/sda3 ro video=vesafb:mtrr,ywrap vga=792 acpi_sleep=s3_bios elevator=cfq resume2=swap:/dev/sda2

Can you help me to fix the "uncachable" reg?
Thanks

Marco
Any idea? :'(
Regards

Marco

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