TileClient::mCompositableClient is not initialized to a correct value. By it, RemoveTextureFromCompositableTracker is not used correctly. It could cause tiled layer rendering's tearing/flickering problem.

Commit https://hg.mozilla.org/integration/mozilla-inbound/rev/f54ea093e836 is causing failures in our automation: http://jenkins1.qa.scl3.mozilla.com/view/UI/job/flame-kk-319.b2g-inbound.ui.functional.smoke/316/HTML_Report/ We have test_clock_create_new_alarm.py failing because of this. Can you please back it out? Thanks!

STR to replicate the failure manually: 1. Launch Clock app 2. Tap Add new alarm button #Expected results: Add new alarm page is displayed #Actual results: Clock app is closed and we are redirected to Homescreen

See also http://logs.glob.uno/?c=mozilla%23gfx&s=2%20Oct%202014&e=2%20Oct%202014#c203163 - :gerard-majax was seeing an error (the attachment shows the contents of his pastebin link, in case it expires) and this is the most likely change to have introduced the problem given his regression range.

I am going to back out the patch.

https://hg.mozilla.org/integration/mozilla-inbound/rev/64ec6cd769a6

(In reply to Sotaro Ikeda [:sotaro] from comment #8) > https://hg.mozilla.org/integration/mozilla-inbound/rev/64ec6cd769a6 backed out

TiledContentClient has a problem of how to call RemoveTextureFromCompositableAsync(). It caused the problem. This bug's commit just increase the frequency of the function call. Therefore the problem exist as a hidden problem even in current gecko. At first, this IPC problem should be addressed.

(In reply to Sotaro Ikeda [:sotaro] from comment #10) > TiledContentClient has a problem of how to call > RemoveTextureFromCompositableAsync(). It caused the problem. This bug's > commit just increase the frequency of the function call. Therefore the > problem exist as a hidden problem even in current gecko. At first, this IPC > problem should be addressed. Bug 1076868 handles the ipc problem.

Tested the mozilla-inbound back out build and our tests work as expected Thanks for fixing this all Gaia-Rev 191d805f4911628d37a8a90a1e23a6013995138f Gecko-Rev https://hg.mozilla.org/integration/mozilla-inbound/rev/64ec6cd769a6 Build-ID 20141002064626 Version 35.0a1 Device-Name flame FW-Release 4.4.2 FW-Incremental eng.cltbld.20141002.095610 FW-Date Thu Oct 2 09:56:21 EDT 2014 Bootloader L1TC10011800

Merge of the backout: https://hg.mozilla.org/mozilla-central/rev/64ec6cd769a6

Bug 1076868 was fixed. The STR in comment 5 does not cause the problem when applying the patch.

https://hg.mozilla.org/integration/mozilla-inbound/rev/2fcc35b3ff89