Filed by: cbrindusan [at] mozilla.com https://treeherder.mozilla.org/logviewer.html#?job_id=208956694&repo=mozilla-central https://queue.taskcluster.net/v1/task/euHphWJJQXuakRcJKIWvFw/runs/0/artifacts/public/logs/live_backing.log 18:08:53 INFO - TEST-START | dom/media/tests/mochitest/test_peerConnection_checkPacketDumpHook.html 18:08:53 INFO - GECKO(5948) | Assertion failure: JS::ObjectIsNotGray(target), at z:/build/build/src/js/src/proxy/Wrapper.cpp:353 18:08:53 INFO - GECKO(5948) | ###!!! [Parent][MessageChannel] Error: (msgtype=0x190095,name=PBrowser::Msg_UpdateNativeWindowHandle) Channel error: cannot send/recv 18:08:53 INFO - GECKO(5948) | ###!!! [Parent][MessageChannel] Error: (msgtype=0x190084,name=PBrowser::Msg_Destroy) Channel error: cannot send/recv 18:08:53 INFO - GECKO(5948) | ++DOCSHELL 115F4000 == 8 [pid = 5988] [id = {fcb42168-2427-422b-87c2-eec7da78a4b6}] 18:08:53 INFO - GECKO(5948) | ++DOMWINDOW == 17 (0B259410) [pid = 5988] [serial = 40] [outer = 00000000] 18:08:53 INFO - GECKO(5948) | ++DOMWINDOW == 18 (16AAB800) [pid = 5988] [serial = 41] [outer = 0B259410] 18:08:53 INFO - GECKO(5948) | A content process crashed and MOZ_CRASHREPORTER_SHUTDOWN is set, shutting down 18:08:53 INFO - GECKO(5948) | ++DOMWINDOW == 19 (0DB55800) [pid = 5988] [serial = 42] [outer = 0B259410] 18:08:53 INFO - GECKO(5948) | [Parent 5988, Gecko_IOThread] WARNING: file z:/build/build/src/ipc/chromium/src/base/process_util_win.cc, line 188 18:08:53 INFO - GECKO(5948) | [Child 4068, Chrome_ChildThread] WARNING: pipe error: 109: file z:/build/build/src/ipc/chromium/src/chrome/common/ipc_channel_win.cc, line 346 18:08:53 INFO - GECKO(5948) | [Child 4068, Chrome_ChildThread] WARNING: pipe error: 109: file z:/build/build/src/ipc/chromium/src/chrome/common/ipc_channel_win.cc, line 346 18:08:53 INFO - GECKO(5948) | [Parent 5988, Gecko_IOThread] WARNING: pipe error: 109: file z:/build/build/src/ipc/chromium/src/chrome/common/ipc_channel_win.cc, line 346 18:08:53 INFO - GECKO(5948) | [Parent 5988, Gecko_IOThread] WARNING: pipe error: 109: file z:/build/build/src/ipc/chromium/src/chrome/common/ipc_channel_win.cc, line 346 18:08:53 INFO - GECKO(5948) | [Parent 5988, Gecko_IOThread] WARNING: pipe error: 109: file z:/build/build/src/ipc/chromium/src/chrome/common/ipc_channel_win.cc, line 346 18:08:53 INFO - GECKO(5948) | [Parent 5988, Gecko_IOThread] WARNING: pipe error: 109: file z:/build/build/src/ipc/chromium/src/chrome/common/ipc_channel_win.cc, line 346 18:08:53 INFO - GECKO(5948) | [Child 4068, Main Thread] WARNING: NS_ENSURE_TRUE(maybeContext) failed: file z:/build/build/src/xpcom/threads/nsThread.cpp, line 948 18:08:53 INFO - GECKO(5948) | [Parent 5988, Gecko_IOThread] WARNING: pipe error: 109: file z:/build/build/src/ipc/chromium/src/chrome/common/ipc_channel_win.cc, line 346 18:08:53 INFO - GECKO(5948) | --DOCSHELL 083E3400 == 3 [pid = 4068] [id = {4775bc27-6d2e-4833-b999-bc3635193499}] 18:08:53 INFO - GECKO(5948) | --DOCSHELL 0136B800 == 2 [pid = 4068] [id = {4697af44-771b-4186-a585-c2d1d6672f69}] 18:08:53 INFO - GECKO(5948) | --DOCSHELL 0136AC00 == 1 [pid = 4068] [id = {b6b8020c-f0a4-4b15-adca-06ff1176b56e}] 18:08:53 INFO - GECKO(5948) | --DOCSHELL 01365400 == 0 [pid = 4068] [id = {97c697eb-7a0a-4290-a13b-3e60610a2b84}] 18:08:53 INFO - GECKO(5948) | --DOMWINDOW == 7 (08339410) [pid = 4068] [serial = 1] [outer = 00000000] [url = moz-extension://6d54dec3-7c7f-4448-b5c0-be0441e959b1/_generated_background_page.html] 18:08:53 INFO - GECKO(5948) | [Child 4068, Main Thread] WARNING: '!mMainThread', file z:/build/build/src/xpcom/threads/nsThreadManager.cpp, line 510 18:08:53 INFO - GECKO(5948) | [Child 4068, Main Thread] WARNING: '!mMainThread', file z:/build/build/src/xpcom/threads/nsThreadManager.cpp, line 510 18:08:53 INFO - GECKO(5948) | [Child 4068, Main Thread] WARNING: '!mMainThread', file z:/build/build/src/xpcom/threads/nsThreadManager.cpp, line 510 18:08:53 INFO - GECKO(5948) | [Child 4068, Main Thread] WARNING: '!mMainThread', file z:/build/build/src/xpcom/threads/nsThreadManager.cpp, line 510 18:08:53 INFO - GECKO(5948) | [Child 4068, Main Thread] WARNING: '!mMainThread', file z:/build/build/src/xpcom/threads/nsThreadManager.cpp, line 510 18:08:53 INFO - GECKO(5948) | [Child 4068, Main Thread] WARNING: '!mMainThread', file z:/build/build/src/xpcom/threads/nsThreadManager.cpp, line 510 18:08:53 INFO - GECKO(5948) | [Child 4068, Main Thread] WARNING: '!mMainThread', file z:/build/build/src/xpcom/threads/nsThreadManager.cpp, line 510 18:08:53 INFO - GECKO(5948) | [Child 4068, Main Thread] WARNING: '!mMainThread', file z:/build/build/src/xpcom/threads/nsThreadManager.cpp, line 510 18:08:53 INFO - GECKO(5948) | [Child 4068, Main Thread] WARNING: '!mMainThread', file z:/build/build/src/xpcom/threads/nsThreadManager.cpp, line 510

Hi Jon, this popped up after bug 1502946 landed. Can you take a look at it, please?

This assertion that's failing relies on the old behaviour of ObjectIsNotGray(). The patch fixes the assertion to only happen if we are not in an incremental GC and updates the comments to hopefully be clearer about what's going on.

Pushed by jcoppeard@mozilla.com: https://hg.mozilla.org/integration/mozilla-inbound/rev/b7296906b534 Fix gray marking assertion in Wrapper::wrappedObject and update comments r=sfink