[Webkit-unassigned] [Bug 105869] New: Regression(r138545): Makes WebAudio tests crash

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=105869

           Summary: Regression(r138545): Makes WebAudio tests crash
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebCore Misc.
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: christophe.dumez at intel.com
                CC: mrobinson at webkit.org, pnormand at igalia.com
            Blocks: 105292


http://trac.webkit.org/changeset/138545 wrongly calls adoptGRef() on the object returned by gst_pipeline_get_bus(). This causes the following assertion hit:
crash log for WebProcess (pid <unknown>):
STDOUT: <empty>
STDERR: ASSERTION FAILED: !gstObjectIsFloating(GST_OBJECT(ptr))
STDERR: /home/buildslave-1/webkit-buildslave/efl-linux-64-debug-wk2/build/Source/WebCore/platform/graphics/gstreamer/GRefPtrGStreamer.cpp(130) : WTF::GRefPtr<T> WTF::adoptGRef(T*) [with T = _GstBus]
STDERR: 1   0x7fd7d388adde WTF::GRefPtr<_GstBus> WTF::adoptGRef<_GstBus>(_GstBus*)
STDERR: 2   0x7fd7d38bc9b1 WebCore::AudioFileReader::decodeAudioForBusCreation()
STDERR: 3   0x7fd7d38bbd63 WebCore::enteredMainLoopCallback(void*)
STDERR: 4   0x7fd7ce0c7a1b
STDERR: 5   0x7fd7ce0c6e53 g_main_context_dispatch
STDERR: 6   0x7fd7ce0c71a0
STDERR: 7   0x7fd7ce0c759a g_main_loop_run
STDERR: 8   0x7fd7d38bcd88 WebCore::AudioFileReader::createBus(float, bool)
STDERR: 9   0x7fd7d38bcf5f WebCore::createBusFromAudioFile(char const*, bool, float)
STDERR: 10  0x7fd7d38baad7 WebCore::AudioBus::loadPlatformResource(char const*, float)
STDERR: 11  0x7fd7d2d92589
STDERR: 12  0x7fd7d2d92a6e WebCore::HRTFElevation::calculateKernelsForAzimuthElevation(int, int, float, WTF::String const&, WTF::RefPtr<WebCore::HRTFKernel>&, WTF::RefPtr<WebCore::HRTFKernel>&)
STDERR: 13  0x7fd7d2d92f3c WebCore::HRTFElevation::createForSubject(WTF::String const&, int, float)
STDERR: 14  0x7fd7d2d8fd54 WebCore::HRTFDatabase::HRTFDatabase(float)
STDERR: 15  0x7fd7d2d8fc8e WebCore::HRTFDatabase::create(float)
STDERR: 16  0x7fd7d2d91b31 WebCore::HRTFDatabaseLoader::load()
STDERR: 17  0x7fd7d2d91ab0
STDERR: 18  0x7fd7d39682f5
STDERR: 19  0x7fd7d398fdea
STDERR: 20  0x7fd7ccfffe9a
STDERR: 21  0x7fd7d643dcbd clone

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