[Webkit-unassigned] [Bug 70306] New: REGRESSION(r97638): page-rule-selection.html, page-format-data.html, and page-format-data-display-none.html crash

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=70306

           Summary: REGRESSION(r97638): page-rule-selection.html,
                    page-format-data.html, and
                    page-format-data-display-none.html crash
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Layout and Rendering
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: rniwa at webkit.org


It appears that r97638 caused 3 printing tests to hit assertions on Snow Leopard:
http://build.webkit.org/results/SnowLeopard%20Intel%20Debug%20(Tests)/r97638%20(2608)/results.html

A stack trace sample:
0   com.apple.WebCore                 0x0000000101383c23 WebCore::Node::getFlag(WebCore::Node::NodeFlags) const + 15 (Node.h:636)
1   com.apple.WebCore                 0x000000010144c2da WebCore::Node::isLink() const + 26 (Node.h:301)
2   com.apple.WebCore                 0x0000000101464b26 void WebCore::CSSStyleSelector::applyDeclarations<true>(bool, int, int) + 52 (CSSStyleSelector.cpp:2177)
3   com.apple.WebCore                 0x0000000101446641 WebCore::CSSStyleSelector::styleForPage(int) + 363 (CSSStyleSelector.cpp:1476)
4   com.apple.WebCore                 0x00000001014bc079 WebCore::Document::styleForPage(int) + 43 (Document.cpp:1694)
5   com.apple.WebCore                 0x00000001014bc562 WebCore::Document::isPageBoxVisible(int) + 32 (Document.cpp:1714)
6   com.apple.WebCore                 0x0000000101da5853 WebCore::PrintContext::isPageBoxVisible(WebCore::Frame*, int) + 35 (PrintContext.cpp:291)
7   com.apple.WebKit                  0x0000000100c5b7ee -[WebFrame(WebKitDebug) isPageBoxVisible:] + 68 (WebCoreStatistics.mm:293)
8   DumpRenderTree                    0x000000010002d3c3 LayoutTestController::isPageBoxVisible(int) const + 43 (LayoutTestControllerMac.mm:316)
9   DumpRenderTree                    0x00000001000245aa isPageBoxVisibleCallback(OpaqueJSContext const*, OpaqueJSValue*, OpaqueJSValue*, unsigned long, OpaqueJSValue const* const*, OpaqueJSValue const**) + 116 (LayoutTestController.cpp:946)
10  com.apple.JavaScriptCore          0x00000001002c3fad JSC::JSCallbackFunction::call(JSC::ExecState*) + 301 (JSCallbackFunction.cpp:73)
11  com.apple.JavaScriptCore          0x00000001002ac656 cti_op_call_NotJSFunction + 425 (JITStubs.cpp:2322)
12  com.apple.JavaScriptCore          0x00000001002a4e13 jscGeneratedNativeCode + 0 (JITStubs.cpp:945)
13  com.apple.JavaScriptCore          0x0000000100283574 JSC::JITCode::execute(JSC::RegisterFile*, JSC::ExecState*, JSC::JSGlobalData*) + 86 (JITCode.h:103)
14  com.apple.JavaScriptCore          0x000000010027c9eb JSC::Interpreter::execute(JSC::EvalExecutable*, JSC::ExecState*, JSC::JSValue, int, JSC::ScopeChainNode*) + 1799 (Interpreter.cpp:1295)
15  com.apple.JavaScriptCore          0x000000010027fbdf JSC::Interpreter::callEval(JSC::ExecState*, JSC::RegisterFile*, JSC::Register*, int, int) + 887 (Interpreter.cpp:463)
16  com.apple.JavaScriptCore          0x00000001002a80f2 cti_op_call_eval + 490 (JITStubs.cpp:3433)
17  com.apple.JavaScriptCore          0x00000001002a4e13 jscGeneratedNativeCode + 0 (JITStubs.cpp:945)
18  com.apple.JavaScriptCore          0x0000000100283574 JSC::JITCode::execute(JSC::RegisterFile*, JSC::ExecState*, JSC::JSGlobalData*) + 86 (JITCode.h:103)
19  com.apple.JavaScriptCore          0x000000010027ef11 JSC::Interpreter::execute(JSC::ProgramExecutable*, JSC::ExecState*, JSC::ScopeChainNode*, JSC::JSObject*) + 3361 (Interpreter.cpp:897)

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