[Openchrome-devel] [Bug 95420] Driver 0.4.0 crashes with recent linux kernel version

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=95420

--- Comment #6 from Kevin Brace <kevinbrace at gmx.com> ---
(In reply to Xavier Bachelot from comment #5)

Hi Xavier,

>  
> 
> fwiw, just switching from linux 4.4 to linux 4.5 triggers the failure.
> libpciaccess has not been changed, nor openchrome.
> 
> This might as well be a behaviour of the driver that was tolerated before
> but is not anymore and thus might warrant a fix on our side ? While looking
> around the net for issues with pci_device_map_range, I've read about
> something similar in mga driver which was mapping 2 crtc to the same fb for
> clone mode. This worked for a time but then the driver needed to be fixed.
> This was circa 2010 iirc, so might be something different...
> https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-mga/+bug/292214/
> comments/8
> 
> 
> I've tried that, it didn't help.

I am not sure what can be done at this point.
At least, it does not appears to be an issue of address double mapping unlike
the other situations you have pointed (with Matrox).
I really hate to see this bug to be a blocker for Version 0.5.

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