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

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On Fri, Jul 26, 2013 at 11:16 AM, Daniel Vetter <daniel.vetter@xxxxxxxx> wrote:
> On Fri, Jul 26, 2013 at 11:11 AM, Sedat Dilek <sedat.dilek@xxxxxxxxx> wrote:
>
>> I have compared next-20130725 VS. next-20130726:
>>
>> $ head -2313 next-20130725-VS-next-20130726.diff | grep ^+ | grep i915
>> +      drm/i915: Colocate all GT access routines in the same file
>> +      drm/i915: Use a private interface for register access within GT
>> +      drm/i915: Use the common register access functions for NOTRACE variants
>> +      drm/i915: Squash gen lookup through multiple indirections
>> inside GT access
>> +      drm/i915: Convert the register access tracepoint to be conditional
>> +      drm/i915: fix the racy object accounting
>> +      drm/i915: dvo_ch7xxx: fix vsync polarity setting
>> +      drm/i915: initialize gt_lock early with other spin locks
>> +      Revert "ACPI / video / i915: No ACPI backlight if firmware
>> expects Windows 8"
>> + drivers/gpu/drm/i915/Makefile                      |    2 +
>> + drivers/gpu/drm/i915/dvo_ch7xxx.c                  |    2 +-
>> + drivers/gpu/drm/i915/i915_debugfs.c                |  836 +--
>> + drivers/gpu/drm/i915/i915_dma.c                    |   91 +-
>> + drivers/gpu/drm/i915/i915_drv.c                    |  292 +-
>> + drivers/gpu/drm/i915/i915_drv.h                    |  413 +-
>> + drivers/gpu/drm/i915/i915_gem.c                    |  411 +-
>> + drivers/gpu/drm/i915/i915_irq.c                    | 1347 ++---
>> + drivers/gpu/drm/i915/i915_trace.h                  |   16 +-
>> + drivers/gpu/drm/i915/intel_display.c               | 1065 ++--
>> + drivers/gpu/drm/i915/intel_drv.h                   |   36 +-
>> + drivers/gpu/drm/i915/intel_pm.c                    |  431 +-
>> + drivers/gpu/drm/i915/intel_uncore.c                |  595 +++
>>
>> Any hints which of the commits could be culprit?
>
> None, it's the vma offset manager stuff in drm-next.
>
> diff --git a/drivers/gpu/drm/drm_gem.c b/drivers/gpu/drm/drm_gem.c
> index 3613b50..1f76572 100644
> --- a/drivers/gpu/drm/drm_gem.c
> +++ b/drivers/gpu/drm/drm_gem.c
> @@ -666,7 +666,7 @@ int drm_gem_mmap(struct file *filp, struct
> vm_area_struct *vma)
>         }
>
>         obj = container_of(node, struct drm_gem_object, vma_node);
> -       ret = drm_gem_mmap_obj(obj, drm_vma_node_size(node), vma);
> +       ret = drm_gem_mmap_obj(obj, drm_vma_node_size(node) << PAGE_SHIFT, vma);
>
>         mutex_unlock(&dev->struct_mutex);
>
>
> That should fix stuff up again, David Herrmann is working on a real
> patch already.
>

The fix can be found at [1].

- Sedat -

[1] https://patchwork.kernel.org/patch/2833932/

> Cheers, Daniel
> --
> Daniel Vetter
> Software Engineer, Intel Corporation
> +41 (0) 79 365 57 48 - http://blog.ffwll.ch
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