Re: [Intel-gfx] linux-next: Tree for Jul 25 [ call-trace: drm | drm-intel related? ]

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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


- Sedat -

> -Chris
>
> --
> Chris Wilson, Intel Open Source Technology Centre
> --
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