127141 2014-01-16 14:04:13 -0800 platform/mac/accessibility/aria-multiline.html sometimes asserts in AccessibilityController::removeNotificationListener 2014-01-17 13:50:04 -0800 1 1 1 Unclassified WebKit Accessibility 528+ (Nightly build) Unspecified Unspecified RESOLVED FIXED InRadar P2 Normal --- 1 ap cfleizach cfleizach commit-queue webkit-bug-importer oldest_to_newest 968929 0 ap 2014-01-16 14:04:13 -0800 platform/mac/accessibility/aria-multiline.html sometimes asserts on Mac WebKit1: Thread 0 Crashed:: Dispatch queue: com.apple.main-thread 0 com.apple.JavaScriptCore 0x000000010674845a WTFCrash + 42 (Assertions.cpp:333) 1 DumpRenderTree 0x0000000105f4e71a AccessibilityController::removeNotificationListener() + 74 (AccessibilityControllerMac.mm:141) 2 DumpRenderTree 0x0000000105f4db06 removeNotificationListenerCallback(OpaqueJSContext const*, OpaqueJSValue*, OpaqueJSValue*, unsigned long, OpaqueJSValue const* const*, OpaqueJSValue const**) + 54 (AccessibilityController.cpp:130) 3 com.apple.JavaScriptCore 0x0000000106456007 long long JSC::APICallbackFunction::call<JSC::JSCallbackFunction>(JSC::ExecState*) + 455 (APICallbackFunction.h:61) 4 com.apple.JavaScriptCore 0x000000010641b7d5 handleHostCall + 293 (JITOperations.cpp:654) 5 com.apple.JavaScriptCore 0x000000010641c175 linkFor + 133 (JITOperations.cpp:697) 6 com.apple.JavaScriptCore 0x00000001064170ca operationLinkCall + 26 (JITOperations.cpp:730) Looks like this started today, perhaps with <http://trac.webkit.org/changeset/162132>. 968931 1 webkit-bug-importer 2014-01-16 14:05:43 -0800 <rdar://problem/15839077> 968932 2 cfleizach 2014-01-16 14:09:49 -0800 now that all the notifications are perhaps being sent, there might be a test that is not cleaning up after itself 968933 3 cfleizach 2014-01-16 14:10:06 -0800 (In reply to comment #2) > now that all the notifications are perhaps being sent, there might be a test that is not cleaning up after itself looking into it 968939 4 cfleizach 2014-01-16 14:19:21 -0800 (In reply to comment #3) > (In reply to comment #2) > > now that all the notifications are perhaps being sent, there might be a test that is not cleaning up after itself > > looking into it this would indicate some test didn't call removeNotificationListener() when it finished, which means that maybe a test timed out as well? if we can't figure this out and it becomes an issue, we can probably remove this assert ASSERT(m_globalNotificationHandler); in DRT and be ok as well 968942 5 ap 2014-01-16 14:32:30 -0800 Would it be possible to remove the listeners automatically? It is nearly always the responsibility of DumpRenderTree to ensure that tests don't affect each other, regardless of what they do. 968954 6 cfleizach 2014-01-16 14:53:10 -0800 (In reply to comment #5) > Would it be possible to remove the listeners automatically? It is nearly always the responsibility of DumpRenderTree to ensure that tests don't affect each other, regardless of what they do. Seems reasonable. I forget the issues why I couldn't do it before like that 968993 7 ap 2014-01-16 16:53:56 -0800 Affects other tests too: <http://build.webkit.org/results/Apple%20MountainLion%20Debug%20WK1%20(Tests)/r162151%20(12285)/platform/mac/accessibility/aria-menubar-crash-log.txt> (this one was reported as a failure in a different test from what CrashLog itself says). 969001 8 221429 cfleizach 2014-01-16 17:07:17 -0800 Created attachment 221429 patch 969018 9 221429 commit-queue 2014-01-16 18:28:23 -0800 Comment on attachment 221429 patch Clearing flags on attachment: 221429 Committed r162179: <http://trac.webkit.org/changeset/162179> 969019 10 commit-queue 2014-01-16 18:28:25 -0800 All reviewed patches have been landed. Closing bug. 969049 11 ap 2014-01-16 22:36:06 -0800 Hmm, while this still looks like a good change to me, I'm not sure how it could fix the assertions - and indeed, they still occur: http://build.webkit.org/results/Apple%20Mavericks%20Debug%20WK1%20(Tests)/r162180%20(1934)/platform/mac/accessibility/aria-menubar-crash-log.txt 969096 12 cfleizach 2014-01-17 02:33:50 -0800 (In reply to comment #11) > Hmm, while this still looks like a good change to me, I'm not sure how it could fix the assertions - and indeed, they still occur: > > http://build.webkit.org/results/Apple%20Mavericks%20Debug%20WK1%20(Tests)/r162180%20(1934)/platform/mac/accessibility/aria-menubar-crash-log.txt Looks like there are two asserts we need to investigate. 969174 13 221478 cfleizach 2014-01-17 11:22:16 -0800 Created attachment 221478 patch 969175 14 cfleizach 2014-01-17 11:22:54 -0800 (In reply to comment #13) > Created an attachment (id=221478) [details] > patch So i was under the impression that AXController would dealloc when the page went away. That is not correct. We need to clean up this stuff on the resetToConsistentState() method 969187 15 221478 ap 2014-01-17 11:46:50 -0800 Comment on attachment 221478 patch View in context: https://bugs.webkit.org/attachment.cgi?id=221478&action=review r=me > Tools/DumpRenderTree/ios/AccessibilityControllerIOS.mm:126 > +{ > +} Not needed on iOS? > Tools/DumpRenderTree/mac/AccessibilityControllerMac.mm:145 > + // No longer a need to cleanup for tests, since resetToConsistentState will remove the listener. Should we remove this function completely, including from all tests? 969238 16 cfleizach 2014-01-17 13:20:45 -0800 (In reply to comment #15) > (From update of attachment 221478 [details]) > View in context: https://bugs.webkit.org/attachment.cgi?id=221478&action=review > > r=me > > > Tools/DumpRenderTree/ios/AccessibilityControllerIOS.mm:126 > > +{ > > +} > > Not needed on iOS? It looks like iOS doesn't allow notifications on the axController (yet) > > > Tools/DumpRenderTree/mac/AccessibilityControllerMac.mm:145 > > + // No longer a need to cleanup for tests, since resetToConsistentState will remove the listener. > > Should we remove this function completely, including from all tests? I think so. I'll file a new bug https://bugs.webkit.org/show_bug.cgi?id=127187 969252 17 221478 commit-queue 2014-01-17 13:50:02 -0800 Comment on attachment 221478 patch Clearing flags on attachment: 221478 Committed r162222: <http://trac.webkit.org/changeset/162222> 969253 18 commit-queue 2014-01-17 13:50:04 -0800 All reviewed patches have been landed. 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