Re: [PATCH] drm/i915: Move the irq wait queue initialisation into thering init

From: Pekka Enberg
Date: Tue Mar 29 2011 - 09:39:58 EST


On Tue, Mar 29, 2011 at 4:22 PM, Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> wrote:
> On Tue, 29 Mar 2011 16:05:35 +0300, Pekka Enberg <penberg@xxxxxxxxxx> wrote:
>> On Tue, Mar 29, 2011 at 3:23 PM, Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> wrote:
>> > Required so that we don't obliterate the queue if initialising the
>> > rings after the global IRQ handler is installed.
>> >
>> > Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
>>
>> I applied both of the patches on top of yesterdays git HEAD and I just
>> get a blank screen after GRUB. No serial or net console here. Do you
>> want me to try just one of the patches or turn on some debugging
>> options?
>
> That was the unspoken side-effect: if we fail to load the i915 module after
> disabling the outputs, then we would be left with a blank screen.
>
> If you can ssh in and retrieve the dmesg, then it should at least give a
> reason...

I have

CONFIG_DRM_I915=y

so there are no modules involved. I'll see if I can ssh to the box.
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