Re: [Xen-devel] vm86 - DCC probes don't work

[Jon Smirl <jonsmirl@xxxxxxxxx>]

ddcprobe is trying to read hardware I2C buses. On a radeon card these
are part of the mmio address space. Not sure where they appear on the
i915 but it should be easy to find in the source.

On Tue, 22 Feb 2005 13:45:31 -0500 (EST), Rik van Riel <riel@xxxxxxxxxx> wrote:
> After digging around a bit on a system that hangs when trying to
> start X, I tried another system and was luckier, when running
> system-config-display:
> 
> do_wp_page: bogus page at address 00000449
> VM: killing process ddcprobe
> PCI: Obtained IRQ 16 for device 0000:00:02.0
> [drm] Initialized i915 1.1.0 20040405 on minor 0:
> do_wp_page: bogus page at address 00000449
> VM: killing process ddcprobe
> 
> I guess some of our low physical memory mappings in domain 0
> aren't complete ?
> 
> X did start, btw ...
> 
> --
> "Debugging is twice as hard as writing the code in the first place.
> Therefore, if you write the code as cleverly as possible, you are,
> by definition, not smart enough to debug it." - Brian W. Kernighan
> 
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-- 
Jon Smirl
jonsmirl@xxxxxxxxx


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