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

Matt Turner
2016-12-03T01:27:05Z

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: