This bug was filed from the Socorro interface and is report bp-7d7db92b-23e3-41e1-aa90-d93532140402. ============================================================= STR: 1. Enable cell data or WiFi 2. open cost Control and go through the FTU steps 3. tap the home button expected: 3. We switch to homescreen app Actual: 3. app crashes Build ID: Gaia 6274b3645b3d41df4aa5a55398b5d106edf1c528 Gecko https://hg.mozilla.org/mozilla-central/rev/4941a2ac0786 BuildID 20140402040201 Version 31.0a1 ro.build.version.incremental=324 ro.build.date=Thu Dec 19 14:04:55 CST 2013 We where able to reproduce this manually using the wifi connection

This might be affected by: Bug 988979 - [B2G][General] After restarting or resetting device does not detect SIM card

This also happens on Fennec Nightly when installing and running the Mozzle app <https://marketplace.firefox.com/app/mozzle>: https://crash-stats.mozilla.com/report/index/deb7e5b6-c75e-45d7-a683-3b4dc2140402

I also get this crash signature every time I open http://outside.aalto.fi/ in Android Fennec Nightly

I also get this crash signature after installing "Penguin Pop" in Fennec Nightly 31.0a1 (2014-04-03) on LG Nexus 4 (Android 4.4.2).

Last good revision: 35180f110e44 First bad revision: 561b9329d832 Pushlog: https://hg.mozilla.org/integration/mozilla-inbound/pushloghtml?fromchange=35180f110e44&tochange=561b9329d832

Looks like bug 989858 caused this.

Matt - Can you look into this?

As far as I can tell we never call SwapProducer when using SurfaceStream/canvas-2d/skia-gl and BasicLayers. Accelerated layers get this called from CanvasClient/ClientCanvasLayer. WebGLContext does this in the PreTransactionCallback. Should we do the same for canvas-2d?

Android is affected https://crash-stats.mozilla.com/report/index/b8d480c9-14a5-480d-b8a8-f537f2140406

A bit more information: It appears we're crashing because mSurface in Basic/CopyableCanvasLayer is nullptr. We used to null check this value, and now we don't. Looks like this crash only happens when we have skia-gl for canvas-2d so I believe the above is the underlying issue. I'll put up a patch to put back the null check too.

The old Thebes code used to do this, probably safest to continue doing so.

I can at least confirm that the Android Nightly seems to not crash any more in places where it did on yesterday's Nightly with this signature. Thanks!

This is no longer reproducing with the patch in comment 17.

(In reply to Matt Woodrow (:mattwoodrow) from comment #9) > As far as I can tell we never call SwapProducer when using > SurfaceStream/canvas-2d/skia-gl and BasicLayers. > > Accelerated layers get this called from CanvasClient/ClientCanvasLayer. > WebGLContext does this in the PreTransactionCallback. > > Should we do the same for canvas-2d? If you don't, the compositor won't get updates, so yes. We should test this with a pref-changing reftest.

I still see this issue on my Keon (1.5.0.0-prerelease 31.0a1 2014-04-14). Do I need to reset the phone to see this issue gone?

I'm not able to reproduce this anymore on Nightly (2014-04-23) using Nexus 5 (Android 4.4.2).