214017 2020-07-06 16:45:07 -0700 Web content process hangs in AccessibilityRenderObject::setSelectedVisiblePositionRange in some corner cases. 2020-07-07 19:26:06 -0700 1 1 1 Unclassified WebKit New Bugs WebKit Nightly Build Unspecified Unspecified RESOLVED FIXED https://bugs.webkit.org/show_bug.cgi?id=214068 InRadar P2 Normal --- 1 andresg_22 andresg_22 aboxhall apinheiro cfleizach dmazzoni ews-watchlist jcraig jdiggs samuel_white oldest_to_newest 1669236 0 andresg_22 2020-07-06 16:45:07 -0700 Web content process hangs in AccessibilityRenderObject::setSelectedVisiblePositionRange in some corner cases. 1669242 1 andresg_22 2020-07-06 16:56:35 -0700 <rdar://problem/63000006> 1669251 2 andresg_22 2020-07-06 17:04:44 -0700 Relevant output from sample: Sampling process 12998 for 3 seconds with 1 millisecond of run time between samples Sampling completed, processing symbols... Analysis of sampling com.apple.WebKit.WebContent.Development (pid 12998) every 1 millisecond Process: com.apple.WebKit.WebContent.Development [12998] Path: /System/Library/Frameworks/WebKit.framework/Versions/A/XPCServices/com.apple.WebKit.WebContent.Development.xpc/Contents/MacOS/com.apple.WebKit.WebContent.Development Load Address: 0x1058ec000 Identifier: com.apple.WebKit.WebContent.Development Call graph: 2438 Thread_161694 DispatchQueue_1: com.apple.main-thread (serial) + 2438 start (in libdyld.dylib) + 1 [0x7fff6edd3221] + 2438 WebKit::XPCServiceMain(int, char const**) (in WebKit) + 578 [0x7fff3e059439] + 2438 xpc_main (in libxpc.dylib) + 437 [0x7fff6f046e54] + 2438 _xpc_objc_main (in libxpc.dylib) + 760 [0x7fff6f04738b] + 2438 -[NSRunLoop(NSRunLoop) run] (in Foundation) + 76 [0x7fff2d8fb6a3] + 2438 -[NSRunLoop(NSRunLoop) runMode:beforeDate:] (in Foundation) + 212 [0x7fff2d86a5e0] + 2438 CFRunLoopRunSpecific (in CoreFoundation) + 514 [0x7fff2ad9fe2b] + 2438 __CFRunLoopRun (in CoreFoundation) + 1983 [0x7fff2ada0c58] + 2438 __CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE__ (in CoreFoundation) + 9 [0x7fff2addefcf] + 2438 _dispatch_main_queue_callback_4CF (in libdispatch.dylib) + 940 [0x7fff6ed882cd] + 2438 _dispatch_client_callout (in libdispatch.dylib) + 8 [0x7fff6ed7c10f] + 2438 _dispatch_call_block_and_release (in libdispatch.dylib) + 12 [0x7fff6ed7af2d] + 2438 -[WebAccessibilityObjectWrapper _accessibilitySetValue:forAttribute:] (in WebCore) + 440 [0x7fff3d89af38] + 2438 WebCore::AccessibilityRenderObject::setSelectedVisiblePositionRange(WebCore::VisiblePositionRange const&) const (in WebCore) + 945 [0x7fff3c903361] + 2438 WebCore::FrameSelection::moveTo(WebCore::VisiblePosition const&, WebCore::EUserTriggered, WebCore::FrameSelection::CursorAlignOnScroll) (in WebCore) + 298 [0x7fff3baa17da] + 2438 WebCore::FrameSelection::setSelection(WebCore::VisibleSelection const&, WTF::OptionSet<WebCore::FrameSelection::SetSelectionOption>, WebCore::AXTextStateChangeIntent, WebCore::FrameSelection::CursorAlignOnScroll, WebCore::TextGranularity) (in WebCore) + 525 [0x7fff3ccef9ad] + 2438 WebKit::WebPage::sendEditorStateUpdate() (in WebKit) + 79 [0x7fff3e44011d] + 2438 WebKit::WebPage::editorState(WebKit::WebPage::ShouldPerformLayout) const (in WebKit) + 1128 [0x7fff3e43801a] + 2438 WebKit::WebPage::getPlatformEditorState(WebCore::Frame&, WebKit::EditorState&) const (in WebKit) + 787 [0x7fff3e2f9701] + 2438 WebCore::Editor::stringForCandidateRequest() const (in WebCore) + 123 [0x7fff3cd0d4cb] + 1930 WebCore::wordRangeFromPosition(WebCore::VisiblePosition const&) (in WebCore) + 198 [0x7fff3cd87de6] ... 1669252 3 403639 andresg_22 2020-07-06 17:05:18 -0700 Created attachment 403639 Patch 1669259 4 403639 cfleizach 2020-07-06 17:15:07 -0700 Comment on attachment 403639 Patch View in context: https://bugs.webkit.org/attachment.cgi?id=403639&action=review > Source/WebCore/ChangeLog:12 > + * accessibility/AccessibilityRenderObject.cpp: any chance to test this? 1669468 5 403707 andresg_22 2020-07-07 10:54:04 -0700 Created attachment 403707 Patch 1669496 6 ews-feeder 2020-07-07 12:50:00 -0700 Committed r264037: <https://trac.webkit.org/changeset/264037> All reviewed patches have been landed. Closing bug and clearing flags on attachment 403707. 403639 2020-07-06 17:05:18 -0700 2020-07-07 10:54:01 -0700 Patch bug-214017-20200706200517.patch text/plain 3299 andresg_22 U3VidmVyc2lvbiBSZXZpc2lvbjogMjYzOTY2CmRpZmYgLS1naXQgYS9Tb3VyY2UvV2ViQ29yZS9D aGFuZ2VMb2cgYi9Tb3VyY2UvV2ViQ29yZS9DaGFuZ2VMb2cKaW5kZXggOWQ2NmMyMjc1OGQ0ZjVj YjRjYTg0MjZiYmUzMDA0YmMyMDNlMzJlNS4uNzIzNWQ0NzNhOWE5YTFjMjk3MzFkYTQzMzYxOTU5 NDA4ZjdjODA2NiAxMDA2NDQKLS0tIGEvU291cmNlL1dlYkNvcmUvQ2hhbmdlTG9nCisrKyBiL1Nv dXJjZS9XZWJDb3JlL0NoYW5nZUxvZwpAQCAtMSwzICsxLDE3IEBACisyMDIwLTA3LTA2ICBBbmRy ZXMgR29uemFsZXogIDxhbmRyZXNnXzIyQGFwcGxlLmNvbT4KKworICAgICAgICBXZWIgY29udGVu dCBwcm9jZXNzIGhhbmdzIGluIEFjY2Vzc2liaWxpdHlSZW5kZXJPYmplY3Q6OnNldFNlbGVjdGVk VmlzaWJsZVBvc2l0aW9uUmFuZ2UgaW4gc29tZSBjb3JuZXIgY2FzZXMuCisgICAgICAgIGh0dHBz Oi8vYnVncy53ZWJraXQub3JnL3Nob3dfYnVnLmNnaT9pZD0yMTQwMTcKKyAgICAgICAgPHJkYXI6 Ly9wcm9ibGVtLzYzMDAwMDA2PgorCisgICAgICAgIFJldmlld2VkIGJ5IE5PQk9EWSAoT09QUyEp 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