[Webkit-unassigned] [Bug 160157] New: REGRESSION(r203537): It made many tests crash on ARMv7 with ARM instruction set

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=160157

            Bug ID: 160157
           Summary: REGRESSION(r203537): It made many tests crash on ARMv7
                    with ARM instruction set
    Classification: Unclassified
           Product: WebKit
           Version: Other
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Critical
          Priority: P1
         Component: JavaScriptCore
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: ossy at webkit.org
            Blocks: 108645, 159649

JSCOnly Linux ARMv7 Traditional Release:
- before: https://build.webkit.org/builders/JSCOnly%20Linux%20ARMv7%20Traditional%20Release/builds/1613
- after: https://build.webkit.org/builders/JSCOnly%20Linux%20ARMv7%20Traditional%20Release/builds/1623
( https://build.webkit.org/builders/JSCOnly%20Linux%20ARMv7%20Traditional%20Release/builds/1637 )

crash log on ARMv7 with ARM instruction set:

Running stress/exit-after-int52-to-double.js.default
stress/exit-after-int52-to-double.js.default: ASSERTION FAILED: linkBuffer.isValid()
stress/exit-after-int52-to-double.js.default: ../../Source/JavaScriptCore/jit/JITMathIC.h(130) : void JSC::JITMathIC<Generator>::generateOutOfLine(JSC::VM&, JSC::CodeBlock*, JSC::FunctionPtr) [with GeneratorType = JSC::JITAddGenerator]
stress/exit-after-int52-to-double.js.default: 1   0xb6394fb0 WTFCrash
stress/exit-after-int52-to-double.js.default: 2   0xb5ea3104 JSC::JITMathIC<JSC::JITAddGenerator>::generateOutOfLine(JSC::VM&, JSC::CodeBlock*, JSC::FunctionPtr)
stress/exit-after-int52-to-double.js.default: 3   0xb5e9a0b8
stress/exit-after-int52-to-double.js.default: Segmentation fault
stress/exit-after-int52-to-double.js.default: ERROR: Unexpected exit code: 139
FAIL: stress/exit-after-int52-to-double.js.default

It seems it is a similar to bug159720 .

Can't we disable this new feature somehow similar to https://trac.webkit.org/changeset/203272 ?

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