linux-kernel - Re: pci 0000:01:00.0: BAR 0: can't allocate resource

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Message-ID: <49A2511B.7030606@zytor.com>
Date:	Sun, 22 Feb 2009 23:32:43 -0800
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
CC:	George Rapp <george.rapp@...il.com>, linux-kernel@...r.kernel.org
Subject: Re: pci 0000:01:00.0: BAR 0: can't allocate resource

Linus Torvalds wrote:
> 
> On Sun, 22 Feb 2009, George Rapp wrote:
>> In case the attachments don't survive Gmail, dmesg output is at
>> http://novia.net/~gwr/dmesg_2.6.29-0.33.rc5, and output of 'lspci -vv' is at
>> http://novia.net/~gwr/lspci-vv_2.6.29-0.33.rc5
> 
> Can you also show the contents of /proc/iomem?
> 
> It does look like it's this one:
> 
> 	pci 0000:01:00.0: BAR 0: can't allocate mem resource [0xe0000000-0xe7ffffff]
> 
> and the problem is that the kernel cannot find enough space to map the 
> required 128MB region for the graphics aperture.
> 

Which makes sense on 32 bits, since by default the entire vmalloc region
is only 128 MB in size.

Booting with vmalloc=256M or something like that might help.

	-hpa

-- 
H. Peter Anvin, Intel Open Source Technology Center
I work for Intel.  I don't speak on their behalf.

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