On Fri, Jul 26, 2013 at 1:25 AM, Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> wrote:
> On Fri, Jul 26, 2013 at 01:21:07AM +0200, Sedat Dilek wrote:
>> On Thu, Jul 25, 2013 at 11:52 PM, Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> wrote:
>> > On Thu, Jul 25, 2013 at 10:07:02PM +0200, Sedat Dilek wrote:
>> >> What means the bang line?
>> >>
>> >> [ 54.564] (II) GLX: Initialized DRI2 GL provider for screen 0
>> >> [ 54.565] bang: 1159
>> >> [ 54.565]
>> >> Fatal server error:
>> >> [ 54.565] failed to create screen resources
>> >
>> > That means between the kernel reporting success for
>> > DRM_IOCTL_I915_GEM_MMAP_GTT and libdrm returning from
>> > drm_intel_gem_bo_map_gtt(), something went wrong. This implies that the
>> > call to mmap() failed.
>> >
>> > I don't see how changing versions of the ddx would unmask the bug, nor
>> > why the mmap() should suddenly start failing. Anybody have any
>> > suggestions other than
>> >
>> > diff --git a/src/intel_uxa.c b/src/intel_uxa.c
>> > index 2f14173..3872258 100644
>> > --- a/src/intel_uxa.c
>> > +++ b/src/intel_uxa.c
>> > @@ -1149,12 +1149,15 @@ Bool intel_uxa_create_screen_resources(ScreenPtr screen)
>> > PixmapPtr pixmap;
>> > intel_screen_private *intel = intel_get_screen_private(scrn);
>> > dri_bo *bo = intel->front_buffer;
>> > + int ret;
>> >
>> > if (!uxa_resources_init(screen))
>> > return FALSE;
>> >
>> > - if (drm_intel_gem_bo_map_gtt(bo))
>> > + if ((ret = drm_intel_gem_bo_map_gtt(bo))) {
>> > + ErrorF("%s:%d bang, errno=%d\n", __func__, __LINE__, -ret);
>> > return FALSE;
>> > + }
>> >
>> > pixmap = screen->GetScreenPixmap(screen);
>> > intel_set_pixmap_bo(pixmap, bo);
>> >
>> > which is most likely to report EINVAL (22)?
>>
>> Yupp, this shows me...
>>
>> [ 28.542] (II) GLX: Initialized DRI2 GL provider for screen 0
>> [ 28.543] intel_uxa_create_screen_resources:1158 bang, errno=22
>> [ 28.543]
>> Fatal server error:
>> [ 28.543] failed to create screen resources
>
> I'm out of ideas, could you bisect this? Either kernel, userspace or
> both. Thanks,
I will wait for today's official Linux-next (next-20130726) release
and check if the issue still exists (might be I mismerged).
Cannot promise for bisecting, but for me it seems to be a
"kernel-related" issue.
So, my 1st bisect-strategy would be to see before/after drm-intel
merge into -next.
For example: I could start my X with even doing ugly hacks like this...
[ intel-ddx (git) ]
...
Bool intel_uxa_create_screen_resources(ScreenPtr screen)
...
#if 0
if (drm_intel_gem_bo_map_gtt(bo))
return FALSE;
#endif
...
...with any other kernel.
- Sedat -
> -Chris
>
> --
> Chris Wilson, Intel Open Source Technology Centre
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