Bug 237070 – REGRESSION (r289495): Flaky crash under WebKit::ModelElementController::modelElementSizeDidChange()

• Status: RESOLVED
• Resolution: FIXED
• Component: New Bugs

[Ryan Haddad]

Created attachment 452922 [details]
crash log

After https://commits.webkit.org/247033@main landed, model-element/model-element-interactive.html has been frequently crashing on Monterey Debug WK2 bots

Thread 0 Crashed:
0   libsystem_kernel.dylib        	       0x19ae359b8 __pthread_kill + 8
1   libsystem_pthread.dylib       	       0x19ae6915c 0x19ae62000 + 29020
2   libsystem_c.dylib             	       0x19ada6314 0x19ad2d000 + 496404
3   libsystem_c.dylib             	       0x19ada572c 0x19ad2d000 + 493356
4   QuartzCore                    	       0x1a1f1945c -[CAFenceHandle dealloc] + 156
5   WebKit                        	       0x147f08de8 WTF::RetainPtr<CAFenceHandle>::~RetainPtr() + 56 (RetainPtr.h:178)
6   WebKit                        	       0x147f06e90 WTF::RetainPtr<CAFenceHandle>::~RetainPtr() + 28 (RetainPtr.h:176)
7   WebKit                        	       0x147f08d80 WebKit::ModelElementController::modelElementSizeDidChange(WTF::String const&, WebCore::FloatSize, WTF::CompletionHandler<void (std::experimental::fundamentals_v3::expected<WTF::MachSendRight, WebCore::ResourceError>)>&&)::$_12::operator()(CAFenceHandle*, NSError*)::'lambda0'()::~() + 32 (ModelElementControllerCocoa.mm:268)
8   WebKit                        	       0x147f06e64 WebKit::ModelElementController::modelElementSizeDidChange(WTF::String const&, WebCore::FloatSize, WTF::CompletionHandler<void (std::experimental::fundamentals_v3::expected<WTF::MachSendRight, WebCore::ResourceError>)>&&)::$_12::operator()(CAFenceHandle*, NSError*)::'lambda0'()::~() + 28 (ModelElementControllerCocoa.mm:268)
9   WebKit                        	       0x147f08688 WTF::Detail::CallableWrapper<WebKit::ModelElementController::modelElementSizeDidChange(WTF::String const&, WebCore::FloatSize, WTF::CompletionHandler<void (std::experimental::fundamentals_v3::expected<WTF::MachSendRight, WebCore::ResourceError>)>&&)::$_12::operator()(CAFenceHandle*, NSError*)::'lambda0'(), void>::~CallableWrapper() + 48 (Function.h:47)
10  WebKit                        	       0x147f08510 WTF::Detail::CallableWrapper<WebKit::ModelElementController::modelElementSizeDidChange(WTF::String const&, WebCore::FloatSize, WTF::CompletionHandler<void (std::experimental::fundamentals_v3::expected<WTF::MachSendRight, WebCore::ResourceError>)>&&)::$_12::operator()(CAFenceHandle*, NSError*)::'lambda0'(), void>::~CallableWrapper() + 28 (Function.h:47)
11  WebKit                        	       0x147f0853c WTF::Detail::CallableWrapper<WebKit::ModelElementController::modelElementSizeDidChange(WTF::String const&, WebCore::FloatSize, WTF::CompletionHandler<void (std::experimental::fundamentals_v3::expected<WTF::MachSendRight, WebCore::ResourceError>)>&&)::$_12::operator()(CAFenceHandle*, NSError*)::'lambda0'(), void>::~CallableWrapper() + 28 (Function.h:47)


https://results.webkit.org/?suite=layout-tests&test=model-element%2Fmodel-element-interactive.html

[Radar WebKit Bug Importer]

<rdar://problem/89325947>

[Cameron McCormack (:heycam)]

Created attachment 463770 [details]
re-enable model tests

For an EWS run.

[Cameron McCormack (:heycam)]

Created attachment 463788 [details]
re-enable model tests (2)

[Cameron McCormack (:heycam)]

Pull request: https://github.com/WebKit/WebKit/pull/6975

[EWS]

Committed 257243@main (808fe7d3ce99): <https://commits.webkit.org/257243@main>

Reviewed commits have been landed. Closing PR #6975 and removing active labels.