xserver: Branch 'server-1.6-branch' - 10 commits

[Brice Goglin]

Brice Goglin wrote:
> Ian Romanick wrote:
>   
>> Brice Goglin wrote:
>>
>>     
>>> This backport breaks the ABI (somewhere between 4cb4c210 and 6be19e8f, I
>>> couldn't finish the bisect). The server reproducibly freezes a couple
>>> seconds after Gnome startup with Intel 2.7.99.901, KMS and 2.6.30 on
>>> i945. Rebuildind the Intel driver against updated Xserver and DRI2 proto
>>> fixes the problem.
>>>       
>> Can you provide more details, please?  I tested the released 2.7 bits
>> with the older dri2proto, and, with the exception of disabling DRI2, it
>> worked fine.  Can you attach gdb to xserver and get a backtrace?
>>     
>
> I don't know if it happens with intel 2.7 branch. I only tested with
> 2.7.99.901, with UXA/DRI2/KMS enabled.
>
> Here's a backtrace. I don't know what triggers it, it happens late
> during Gnome startup here. But some other users seem to get a crash
> right after login in gdm.
>   

By the way, this backtrace comes from i686. I think all crash reports we
received so far come from 32bits machines. So if you tested with a
64bits machine, it may explain why you didn't see the crash.

People are getting GL corruption on 64bits and 32bits with
server-1.6-branch as well, but we haven't bisected this one yet.

Brice