[Webkit-unassigned] [Bug 129099] New: REGRESSION(r163027): CStack branch merge broke 2 tests on 32 bit

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=129099

           Summary: REGRESSION(r163027): CStack branch merge broke 2 tests
                    on 32 bit
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: NEW
          Severity: Critical
          Priority: P1
         Component: JavaScriptCore
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: ossy at webkit.org
                CC: ggaren at apple.com, oliver at apple.com,
                    barraclough at apple.com, msaboff at apple.com,
                    fpizlo at apple.com, mhahnenberg at apple.com,
                    mark.lam at apple.com
            Blocks: 127777


Tested on Mac Mavericks and it is still valid on ToT, but unfortunately the 
new regression caused by http://trac.webkit.org/changeset/164417 hides it.

But you can easily reproduce it on r164416.

test log:

jsc-layout-tests.yaml/js/script-tests/reentrant-caching.js.layout: Test caching with re-entrancy.
jsc-layout-tests.yaml/js/script-tests/reentrant-caching.js.layout: 
jsc-layout-tests.yaml/js/script-tests/reentrant-caching.js.layout: On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
jsc-layout-tests.yaml/js/script-tests/reentrant-caching.js.layout: 
jsc-layout-tests.yaml/js/script-tests/reentrant-caching.js.layout: 
jsc-layout-tests.yaml/js/script-tests/reentrant-caching.js.layout: test_script_7956: line 2:  2668 Bus error: 10           "$@" ../../../../.vm/JavaScriptCore.framework/Resources/jsc resources/standalone-pre.js reentrant-caching.js resources/standalone-post.js
jsc-layout-tests.yaml/js/script-tests/reentrant-caching.js.layout: ERROR: Unexpected exit code: 138
jsc-layout-tests.yaml/js/script-tests/reentrant-caching.js.layout-no-cjit: Test caching with re-entrancy.
jsc-layout-tests.yaml/js/script-tests/reentrant-caching.js.layout-no-cjit: 
jsc-layout-tests.yaml/js/script-tests/reentrant-caching.js.layout-no-cjit: On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
jsc-layout-tests.yaml/js/script-tests/reentrant-caching.js.layout-no-cjit: 
jsc-layout-tests.yaml/js/script-tests/reentrant-caching.js.layout-no-cjit: 
jsc-layout-tests.yaml/js/script-tests/reentrant-caching.js.layout-no-cjit: test_script_7958: line 2:  2680 Bus error: 10           "$@" ../../../../.vm/JavaScriptCore.framework/Resources/jsc --enableConcurrentJIT\=false resources/standalone-pre.js reentrant-caching.js resources/standalone-post.js
jsc-layout-tests.yaml/js/script-tests/reentrant-caching.js.layout-no-cjit: ERROR: Unexpected exit code: 138
8364/8364 (failed 2)    

** The following JSC stress test failures have been introduced:
    jsc-layout-tests.yaml/js/script-tests/reentrant-caching.js.layout
    jsc-layout-tests.yaml/js/script-tests/reentrant-caching.js.layout-no-cjit

Results for JSC stress tests:
    2 failures found.

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