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

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On Thu, Jul 25, 2013 at 8:45 PM, Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> wrote:
> On Thu, Jul 25, 2013 at 08:03:06PM +0200, Sedat Dilek wrote:
>> On Thu, Jul 25, 2013 at 7:55 PM, Sedat Dilek <sedat.dilek@xxxxxxxxx> wrote:
>> > F*ck. Wrong patch refreshed.
>> >
>>
>> New dmesg attached.
>
> Hmm, not seeing any difference, so let's add a couple more lines just to
> be sure:
>
> (apologies I didn't stash the previous debug patch)
>
> diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
> index 0563661..4d21f37 100644
> --- a/drivers/gpu/drm/i915/i915_gem.c
> +++ b/drivers/gpu/drm/i915/i915_gem.c
> @@ -1624,30 +1624,39 @@ i915_gem_mmap_gtt(struct drm_file *file,
>         struct drm_i915_gem_object *obj;
>         int ret;
>
> +       printk(KERN_ERR "Hello!\n");
> +
>         ret = i915_mutex_lock_interruptible(dev);
> -       if (ret)
> +       if (ret) {
> +               DRM_DEBUG_DRIVER("interrupted: ret=%d\n", ret);
>                 return ret;
> +       }
>
>         obj = to_intel_bo(drm_gem_object_lookup(dev, file, handle));
>         if (&obj->base == NULL) {
> +               DRM_DEBUG_DRIVER("Unknown object handle %d\n", handle);
>                 ret = -ENOENT;
>                 goto unlock;
>         }
>
>         if (obj->base.size > dev_priv->gtt.mappable_end) {
> +               DRM_DEBUG_DRIVER("Object (%d) larger than mappable aperture (%d) > %d\n",
> +                               (int)obj->base.size, (int)dev_priv->gtt.mappable_end);
>                 ret = -E2BIG;
>                 goto out;
>         }
>
>         if (obj->madv != I915_MADV_WILLNEED) {
> -               DRM_ERROR("Attempting to mmap a purgeable buffer\n");
> +               DRM_DEBUG_DRIVER("Attempting to mmap a purgeable buffer\n");
>                 ret = -EINVAL;
>                 goto out;
>         }
>
>         ret = i915_gem_object_create_mmap_offset(obj);
> -       if (ret)
> +       if (ret) {
> +               DRM_DEBUG_DRIVER("Failed to allocate mmap offset (ret=%d)\n", ret);
>                 goto out;
> +       }
>
>         *offset = (u64)obj->base.map_list.hash.key << PAGE_SHIFT;
>
> @@ -1655,6 +1664,7 @@ out:
>         drm_gem_object_unreference(&obj->base);
>  unlock:
>         mutex_unlock(&dev->struct_mutex);
> +       DRM_DEBUG_DRIVER("done, ret=%d\n", ret);
>         return ret;
>  }
>
>
> --

Against what tree is this applicable? It is definitely not drm-intel-nightly.

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