[Webkit-unassigned] [Bug 170765] New: Assertion failed under WebCore::ApplyStyleCommand::applyBlockStyle.

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Wed Apr 12 01:07:05 PDT 2017


https://bugs.webkit.org/show_bug.cgi?id=170765

            Bug ID: 170765
           Summary: Assertion failed under
                    WebCore::ApplyStyleCommand::applyBlockStyle.
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: HTML Editing
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: pvollan at apple.com
                CC: wenson_hsieh at apple.com

I have not been able to reproduce this myself, but in some cases an assertion fails under WebCore::ApplyStyleCommand::applyBlockStyle:

0   com.apple.JavaScriptCore            0x000000010bfdaf64 WTFCrash + 36
1   com.apple.WebCore                   0x0000000111e9408f WebCore::ApplyStyleCommand::applyBlockStyle(WebCore::EditingStyle*) + 1535
2   com.apple.WebCore                   0x0000000111e93a5d WebCore::ApplyStyleCommand::doApply() + 349
3   com.apple.WebCore                   0x000000011210468a WebCore::CompositeEditCommand::apply() + 314
4   com.apple.WebCore                   0x0000000112104521 WebCore::applyCommand(WTF::PassRefPtr<WebCore::CompositeEditCommand>) + 17
5   com.apple.WebCore                   0x0000000112642639 WebCore::Editor::applyParagraphStyle(WebCore::StyleProperties*, WebCore::EditAction) + 521
6   com.apple.WebCore                   0x0000000112660349 WebCore::executeApplyParagraphStyle(WebCore::Frame&, WebCore::EditorCommandSource, WebCore::EditAction, WebCore::CSSPropertyID, WTF::String const&) + 233
7   com.apple.WebCore                   0x000000011265b5e2 WebCore::executeJustifyCenter(WebCore::Frame&, WebCore::Event*, WebCore::EditorCommandSource, WTF::String const&) + 98
8   com.apple.WebCore                   0x000000011265af33 WebCore::Editor::Command::execute(WTF::String const&, WebCore::Event*) const + 211
9   com.apple.WebCore                   0x00000001124f2d69 WebCore::Document::execCommand(WTF::String const&, bool, WTF::String const&) + 89
10  com.apple.WebCore                   0x000000011307a124 WebCore::jsDocumentPrototypeFunctionExecCommandCaller(JSC::ExecState*, WebCore::JSDocument*, JSC::ThrowScope&) + 660
11  com.apple.WebCore                   0x00000001130646f2 long long WebCore::BindingCaller<WebCore::JSDocument>::callOperation<&(WebCore::jsDocumentPrototypeFunctionExecCommandCaller(JSC::ExecState*, WebCore::JSDocument*, JSC::ThrowScope&)), (WebCore::CastedThisErrorBehavior)0>(JSC::ExecState*, char const*) + 658
12  com.apple.WebCore                   0x0000000113064448 WebCore::jsDocumentPrototypeFunctionExecCommand(JSC::ExecState*) + 40
13  ???                                 0x0000200287201028 0 + 35195229048872
14  com.apple.JavaScriptCore            0x000000010b91f41f llint_entry + 29979

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