Flashplayer eventually crashes the firefox plugin-container, seems to need several minutes of total playback. Nothing in Xorg log or dmesg after it happened. Youtube HTML5 playback is fine.
repro'd with current ubuntu xenial, with following:
intel git from 2015-12-17
-- GitLab Migration Automatic Message --
This bug has been migrated to freedesktop.org's GitLab instance and has been closed from further activity.
You can subscribe and participate further through the new bug through this link to our GitLab instance: https://gitlab.freedesktop.org/xorg/driver/xf86-video-intel/issues/84.