Re: [PATCH 0/2] PM / PCMCIA: Fix CardBus suspend/resume regression

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Hi,

Sorry for the delayed response.

On Saturday 26 September 2009, you wrote:
> Everytime I try to email linux-pci from my google account it does not
> appear to work, basically I was wondering if
> 
> I have a acer aspire 9815 with from what I have read a 32bit
> Northbridge and when you add 4GB of RAM with a nVidia 256 of "virtual
> ram" causes a base address registers (BAR1), but works fine with 2GB
> because there is a problem with the way that Linux kernel is
> allocating the memory associated with the devices and places then out
> of range.
> 
> Here is my lspci for the PCI host bridge
> 
> Host bridge: Intel Corporation Mobile 945GM/PM/GMS, 943/940GML and
> 945GT Express Memory Controller Hub (rev 03)
> PCI bridge: Intel Corporation Mobile 945GM/PM/GMS, 943/940GML and
> 945GT Express PCI Express Root Port (rev 03)
> 
> From this website it appears that some one was trying to update the
> PCI IOMEM part of the kernl
> 
> http://tjworld.net/wiki/Linux/PCIDynamicResourceAllocationManagement
> 
> but says that it will be in the .30 / .31 kernel but I am not able to
> still use the 4GB of ram and I am using the  2.6.31-10-generic
> #35-Ubuntu SMP Tue Sep 22 17:33:42 UTC 2009 i686 GNU/Linux from a
> kubuntu 9.10 setup and was hoping to have the fix already applied.
> 
> Was wondering since I am using the k/ubuntu kernel does the "real"
> kernel have the PCI IOMEM Upgrade ? or do I have pass some kernel
> parameters on grub to allow for this to work correctly ? or has there
> been another upgrade to the PCI structure that will come in a later
> release ?

I really cannot answer this question, but I'm adding CCs to linux-pci and
Jesse, who maintains the kernel's PCI subsystem.

> Also there was some advice to update the BIOS for some laptops and set
> the upper memory limit, does this make the PC memory have a virtual
> head to it and thus the OS will not see the rest of RAM ? or is it
> just for the PCI setup aspects that look at the upper memory limit and
> the rest of the OS can see the and use the rest of the RAM ?
> 
> Any advice would be great.

Best,
Rafael
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