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Re: [PATCH] drm/i915: Remove instructions to file a bug report.

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On Fri, Dec 2, 2016 at 5:03 PM, Matt Turner <mattst88@gmail.com> wrote:
> From these instructions, users assume that /sys/class/drm/card0/error
> contains all the information a developer needs to diagnose and fix a GPU
> hang.
>
> In fact it doesn't, and we have no tools for solving them (other than
> stabbing in the dark). Most of the time the error state itself isn't
> even useful because it just shows a hang on a PIPE_CONTROL or similar.
>
> Until a time when the error state contains enough information to
> actually solve a hang, stop telling users to file unsolvable bugs, and
> instead rely on users who know where and how to file a good bug report
> to find their own way there.
>
> Signed-off-by: Matt Turner <mattst88@gmail.com>
> ---
> Maybe now's a good time to discuss what *would* be useful to put in the
> error state for debugging hangs. The currently executing shader program
> would be a great place to start.

Looks like Ben had a patch:

https://cgit.freedesktop.org/~bwidawsk/drm-intel/commit/?h=extra_error_objs&id=711da2570cd3302d0cb9f2489a101e4a7c966a6c

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Thread

[PATCH] drm/i915: Remove instructions to file a bug report. Matt Turner <mattst88@gmail.com> - 2016-12-03 02:10 +0100
  Re: [PATCH] drm/i915: Remove instructions to file a bug report. Matt Turner <mattst88@gmail.com> - 2016-12-03 02:30 +0100
  Re: [Intel-gfx] [PATCH] drm/i915: Remove instructions to file a bug  report. Chris Wilson <chris@chris-wilson.co.uk> - 2016-12-03 10:00 +0100
  Re: [PATCH] drm/i915: Remove instructions to file a bug report. Jani Nikula <jani.nikula@linux.intel.com> - 2016-12-03 11:00 +0100
    Re: [PATCH] drm/i915: Remove instructions to file a bug report. Matt Turner <mattst88@gmail.com> - 2016-12-06 02:00 +0100
      Re: [Intel-gfx] [PATCH] drm/i915: Remove instructions to file a bug  report. Daniel Vetter <daniel@ffwll.ch> - 2016-12-07 17:10 +0100

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