https://crash-stats.mozilla.com/report/index/65445611-8f70-44bc-a45a-3ed822160504 The assertion is hit just like in bug 1265282, with a low volume but for the same reason: device reset (D3D9 this time) with a fall-back to the basic compositor, but already in flight D3D9 textures end up trying to get access to a D3D9 compositor. The MOZ_DIAGNOSTIC_ASSERT that blows up is interesting in order to get an idea of whether this can happen, and now that we know, it's not worth crashing nightly and aurora builds, so I'll replace the assertion with a gfxCriticalNote annotation as we did in the other bug.
Created attachment 8748604 [details] [diff] [review] gfxCriticalNote instead of crash
Assignee: nobody → nical.bugzilla
Attachment #8748604 - Flags: review?(bas)
Attachment #8748604 - Flags: review?(bas) → review+
Status: NEW → RESOLVED
Last Resolved: 3 years ago
status-firefox49: --- → fixed
Resolution: --- → FIXED
Target Milestone: --- → mozilla49
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