Re: IBM Thinkpad G41 PCMCIA problems

[Dominik Brodowski]

On Sun, Feb 20, 2005 at 10:52:12AM +0100, David Härdeman wrote:
> On Sun, Feb 20, 2005 at 09:26:59AM +0000, Russell King wrote:
> >On Sun, Feb 20, 2005 at 10:22:09AM +0100, David Härdeman wrote:
> >>I see the same problem with an IBM Thinkpad G40, and only when there is 
> >>1Gb of memory or more in the machine.
> >
> >Check to see if your e820 map has a hole in it, and whether any of
> >your Cardbus bridge memory / region 0 resources appear in it.
> >
> >If your e820 map contains a hole, I'd suspect another buggy bios.
> 
> e820 map:
> BIOS-provided physical RAM map:
> BIOS-e820: 0000000000000000 - 000000000009f000 (usable)
> BIOS-e820: 000000000009f000 - 00000000000a0000 (reserved)
> BIOS-e820: 00000000000ce000 - 00000000000d0000 (reserved)
> BIOS-e820: 00000000000dc000 - 0000000000100000 (reserved)
> BIOS-e820: 0000000000100000 - 000000000f6f0000 (usable)
> BIOS-e820: 000000000f6f0000 - 000000000f700000 (reserved)
> BIOS-e820: 000000000f700000 - 000000003f6f0000 (usable)
> BIOS-e820: 000000003f6f0000 - 000000003f6f8000 (ACPI data)
> BIOS-e820: 000000003f6f8000 - 000000003f6fa000 (ACPI NVS)
> BIOS-e820: 000000003f700000 - 0000000040000000 (reserved)
> BIOS-e820: 00000000ff800000 - 0000000100000000 (reserved)
> 118MB HIGHMEM available.
> 896MB LOWMEM available.
> 
> Is the hole between 0x36f6fa000 and 0x3f700000?
> 
> And what would be the proper way of fixing it (assuming that IBM won't 
> issue a fixed BIOS)?

passing "reserve=0x3f6fa000,0x600" as kernel boot option. Please also post
/proc/iomem for further debugging, especially if this didn't help.

	Dominik
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