Filed by: egao [at] mozilla.com
Parsed log: https://treeherder.mozilla.org/logviewer.html#?job_id=248264055&repo=try
Full log: https://queue.taskcluster.net/v1/task/YDVDM5tCQ92Zz_lajOLVAg/runs/0/artifacts/public/logs/live_backing.log

Test: mochitest-browser-chrome-e10s
Chunk: 7
Platform: macosx1014-mojave

Context:
22:35:31 INFO - TEST-START | browser/base/content/test/performance/browser_startup_syncIPC.js
22:35:31 INFO - Not taking screenshot here: see the one that was previously logged
22:35:31 INFO - Buffered messages logged at 22:35:31
22:35:31 INFO - Entering test bound
22:35:31 INFO - whitelisted sync IPC before first paint:
22:35:31 INFO - PLayerTransaction::Msg_GetTextureFactoryIdentifier - at most 1 times
22:35:31 INFO - PCompositorBridge::Msg_NotifyChildCreated - at most 1 times
22:35:31 INFO - PCompositorBridge::Msg_FlushRendering - at most 1 times
22:35:31 INFO - TEST-PASS | browser/base/content/test/performance/browser_startup_syncIPC.js | sync IPC PLayerTransaction::Msg_GetTextureFactoryIdentifier happened as many times as expected before first paint -
22:35:31 INFO - TEST-PASS | browser/base/content/test/performance/browser_startup_syncIPC.js | sync IPC PCompositorBridge::Msg_NotifyChildCreated happened as many times as expected before first paint -
22:35:31 INFO - TEST-PASS | browser/base/content/test/performance/browser_startup_syncIPC.js | sync IPC PCompositorBridge::Msg_FlushRendering happened as many times as expected before first paint -
22:35:31 INFO - whitelisted sync IPC before handling user events:
22:35:31 INFO - PCompositorBridge::Msg_FlushRendering - at most 1 times
22:35:31 INFO - TEST-PASS | browser/base/content/test/performance/browser_startup_syncIPC.js | sync IPC PCompositorBridge::Msg_FlushRendering happened as many times as expected before handling user events -
22:35:31 INFO - whitelisted sync IPC before becoming idle:
22:35:31 INFO - PCompositorBridge::Msg_NotifyChildCreated - at most 1 times
22:35:31 INFO - Buffered messages finished
22:35:31 INFO - TEST-UNEXPECTED-FAIL | browser/base/content/test/performance/browser_startup_syncIPC.js | unexpected PCompositorBridge::Msg_FlushRendering sync IPC before becoming idle -
22:35:31 INFO - Stack trace:
22:35:31 INFO - chrome://mochikit/content/browser-test.js:test_ok:1314
22:35:31 INFO - chrome://mochitests/content/browser/browser/base/content/test/performance/browser_startup_syncIPC.js:null:226
22:35:31 INFO - chrome://mochikit/content/browser-test.js:Tester_execTest/<:1116
22:35:31 INFO - chrome://mochikit/content/browser-test.js:Tester_execTest:1144
22:35:31 INFO - chrome://mochikit/content/browser-test.js:nextTest/<:1005
22:35:31 INFO - chrome://mochikit/content/tests/SimpleTest/SimpleTest.js:SimpleTest.waitForFocus/waitForFocusInner/focusedOrLoaded/<:803
22:35:31 INFO - TEST-PASS | browser/base/content/test/performance/browser_startup_syncIPC.js | sync IPC PCompositorBridge::Msg_NotifyChildCreated happened as many times as expected before becoming idle -
22:35:31 INFO - Not taking screenshot here: see the one that was previously logged
22:35:31 INFO - TEST-UNEXPECTED-FAIL | browser/base/content/test/performance/browser_startup_syncIPC.js | Unexpected sync IPC behavior during startup; open the profile_startup_syncIPC.json artifact in the Firefox Profiler to see what happened -
22:35:31 INFO - Stack trace:
22:35:31 INFO - chrome://mochikit/content/browser-test.js:test_ok:1314
22:35:31 INFO - chrome://mochitests/content/browser/browser/base/content/test/performance/browser_startup_syncIPC.js:null:261
22:35:31 INFO - chrome://mochikit/content/browser-test.js:Tester_execTest/<:1116
22:35:31 INFO - chrome://mochikit/content/browser-test.js:Tester_execTest:1144
22:35:31 INFO - chrome://mochikit/content/browser-test.js:nextTest/<:1005
22:35:31 INFO - chrome://mochikit/content/tests/SimpleTest/SimpleTest.js:SimpleTest.waitForFocus/waitForFocusInner/focusedOrLoaded/<:803
22:35:31 INFO - Leaving test bound
22:35:31 INFO - GECKO(1677) | MEMORY STAT | vsize 7122MB | residentFast 382MB | heapAllocated 164MB
22:35:31 INFO - TEST-OK | browser/base/content/test/performance/browser_startup_syncIPC.js | took 127ms