[Mesa-dev] Chromium - Application-level nouveau blacklist

[Stéphane Marchesin]

On Tue, Jan 8, 2019 at 1:11 AM Eero Tamminen <eero.t.tamminen at intel.com> wrote:
>
> Hi,
>
> On 8.1.2019 8.56, Stéphane Marchesin wrote:
> > Yes I think the Chrome-side is very simple here: because there isn't
> > time or means for in-depth investigation, if a driver crashes too
> > much, it gets blacklisted. The situation is not unique, the GPU
> > blacklist file is 1700 lines:
> > https://chromium.googlesource.com/chromium/src/gpu/+/master/config/software_rendering_list.json
> >
> > Anyway, IMO if the biggest crashers can be fixed, I think we could
> > eventually make a case to reenable.
>
> Can Chrome crash tracking system provide following information:
> * which www-page caused the crash
> * upstream Mesa commit used
> * upstream kernel commit used
> * if crash is from ChromeOS
>     - what patches have been applied on top of kernel & Mesa

Note that for Chrome OS, we handle the crashes ourselves already. But
of course there is no nouveau-based chromebook so that wouldn't help
with the issue at hand.

> * if crash is from a Linux distro
>    - distro version and windowing system setup (X/Wayland, compositor)
>    - package versions for kernel, Mesa, display server and compositor
>      (to find what kernel & Mesa patches are applied)
> * detailed HW information
> * backtrace

The problem with the backtrace is that Chrome doesn't have the symbols
for the driver, so although we (internally, at Google) can get a
backtrace, we still need to symbolize it somehow.

> ?
>
> So that developers could try the corresponding combination?

The Chrome team has a relationship with a lot of vendors on other
OSes. If there is interest, I am sure we can work out something
similar between the Chrome team and the nouveau devs, and I'd be happy
to play middle man if needed. I think the main roadblock is about
symbolizing the backtraces which we have. We can probably start with
bugs that happen on "common" distros, for which it should be easy to
get symbols.

Stéphane


>
>
>         - Eero
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