[CFT] drm updates

[Paul B. Mahol]

On 8/28/08, Robert Noland <rnoland at freebsd.org> wrote:
> On Thu, 2008-08-28 at 20:45 +0200, Paul B. Mahol wrote:
>> On 8/28/08, Robert Noland <rnoland at freebsd.org> wrote:
>> > On Thu, 2008-08-28 at 19:07 +0200, Paul B. Mahol wrote:
>> >> On 8/27/08, Robert Noland <rnoland at freebsd.org> wrote:
>> >> > On Wed, 2008-08-27 at 12:07 +0200, Paul B. Mahol wrote:
>> >> >> On 8/26/08, Robert Noland <rnoland at freebsd.org> wrote:
>> >> >> > On Tue, 2008-08-26 at 17:51 +0200, Paul B. Mahol wrote:
>> >> >> >> Here is more kernel debug info (after updating libdrm and testing
>> >> >> >> with
>> >> >> >> glxgears)
>> >> >> >
>> >> >> > I don't think that the two issues are related, but try this
>> >> >> > patch...
>> >> >> > It
>> >> >> > should at least, resolve the issue below.
>> >> >> >
>> >> >> > robert.
>> >> >>
>> >> >> Issue bellow is fixed, previous problem still exist.
>> >> >>
>> >> >> textdump of panic when unloading drm attached.
>> >> >
>> >> > Ok, The locking semantics are a nightmare... Give this a try, it
>> >> > should
>> >> > correct both the previous issue as well as this one.
>> >> >
>> >> > robert.
>> >> >
>> >>
>> >> Panic fixed, now only Xorg crashing when using glxgears (,...) remains
>> >> ;)
>> >
>> > Ok, what hardware are you using again?  Can you manually load drm
>> > modules and set hw.dri.0.debug=1 and send me the debug output?
>> >
>> > robert.
>>
>> Hardware: "Mobile 945GM/GU Express Integrated Graphics Controller"
>> Debug ouptut attached.
>
> Alright, try this...  I was pointed at this from another thread, but
> your trace confirms why it doesn't work, at least with your driver.
>
> robert.
>

Nothing improved with that patch, still crash with glxgears, and lock
with stellarium.

How to make sure that this is really drm problem and not i915, Xorg,
mesa-ports that need recompiling?