I noticed that all 7 of the 'real' crashes are on Windows.  We had more
problems with Win that other platforms so perhaps we are not completely
fixed on Windows.  For example, Win-specific patches for GMP here -
https://bugzilla.mozilla.org/show_bug.cgi?id=1044245

-EH



On Wed, Aug 20, 2014 at 7:45 AM, Benjamin Smedberg <[email protected]>
wrote:

> For crash-stats, here's a sample crash of the GMP plugin (an
> artificially-induced crash):
>
> https://crash-stats.mozilla.com/report/index/4d802ab8-
> 0e03-4531-afc9-5ade22140820
>
> These crashes can be identified by ProcessType=plugin and
> PluginFilename=gmpopenh264 in the metadata.
>
> Here is a supersearch link for OpenH264 crashes (use the Signature facet
> tab):
>
> https://crash-stats.mozilla.com/search/?product=Firefox&;
> plugin_filename=gmpopenh264&_facets=signature&_columns=
> date&_columns=signature&_columns=product&_columns=
> version&_columns=build_id&_columns=platform
>
> RecvCrashPluginNow is our testing function to crash the plugin (to make
> sure that crash reporting works) and is not a signal of a real issue.
>
> There are a handful (7) of crashes which look "real". Because these are
> release builds with COMDAT-folding, the crash stacks are going to look a
> bit bogus. For example looking at https://crash-stats.mozilla.
> com/report/index/eb8a8381-dafb-4d04-abb8-a5a1c2140818:
>
> Obviously PGMPChild::OnMessageReceived should never be calling into
> dom::Telephony. However it's probably some other actor in the GMP IPDL tree
> that has the same method code. It would be hard to debug without looking at
> the callsite (PGMPChild::OnMessageReceived) which is generated code.
>
> Overall, I don't think we have any particular worries about OpenH264 crash
> rates, but we should watch them for spikes. At this week's crashkill
> meeting, Kairo volunteered to set up some regular reports so that it would
> easy to monitor this separately from the rest of the browser/plugin
> crashes. That may take a few weeks, though.
>
> --BDS
>
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