there is ASSERT bug in <decodeAudioForBusCreation() "Source/WebCore/platform/audio/gstreamer/AudioFileReaderGStreamer.cpp:283">. the code is below. GRefPtr<GstBus> bus = adoptGRef(gst_pipeline_get_bus(GST_PIPELINE(m_pipeline))); gst_pipeline_get_bus() returns FLOATING GstBus object. i think it's sane. but in adoptGRef, ASSERT(!GST_OBJECT_IS_FLOATING(GST_OBJECT(ptr))) then always i meet the segfault. [O/S] Linux 3.2.0-19-generic #30-Ubuntu SMP Fri Mar 16 16:27:15 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux [Build Option] '--gtk --debug --web-audio --fullscreen-api --no-svg' [command] GtkLauncher --enable-webaudio=true --enable-webgl=true http://chromium.googlecode.com/svn/trunk/samples/audio/shiny-drum-machine.html [Result] ASSERTION FAILED: !GST_OBJECT_IS_FLOATING(GST_OBJECT(ptr)) ../../Source/WebCore/platform/graphics/gstreamer/GRefPtrGStreamer.cpp(130) : WTF::GRefPtr<T> WTF::adoptGRef(T*) [with T = _GstBus] 1 0x7fd8d28aff69 /o/WebKit/WebKitBuild/Debug/.libs/libwebkitgtk-3.0.so.0(+0x1c6cf69) [0x7fd8d28aff69] 2 0x7fd8d24ddcf6 /o/WebKit/WebKitBuild/Debug/.libs/libwebkitgtk-3.0.so.0(+0x189acf6) [0x7fd8d24ddcf6] 3 0x7fd8d24dd3c7 /o/WebKit/WebKitBuild/Debug/.libs/libwebkitgtk-3.0.so.0(+0x189a3c7) [0x7fd8d24dd3c7] 4 0x7fd8cfb6e53b /o/WebKit/WebKitBuild/Dependencies/Root/lib64/libglib-2.0.so.0(+0x4753b) [0x7fd8cfb6e53b] 5 0x7fd8cfb6d8fa /o/WebKit/WebKitBuild/Dependencies/Root/lib64/libglib-2.0.so.0(g_main_context_dispatch+0x16a) [0x7fd8cfb6d8fa] 6 0x7fd8cfb6dcc0 /o/WebKit/WebKitBuild/Dependencies/Root/lib64/libglib-2.0.so.0(+0x46cc0) [0x7fd8cfb6dcc0] 7 0x7fd8cfb6e0ba /o/WebKit/WebKitBuild/Dependencies/Root/lib64/libglib-2.0.so.0(g_main_loop_run+0x6a) [0x7fd8cfb6e0ba] 8 0x7fd8d24de0c4 /o/WebKit/WebKitBuild/Debug/.libs/libwebkitgtk-3.0.so.0(+0x189b0c4) [0x7fd8d24de0c4] 9 0x7fd8d24de447 /o/WebKit/WebKitBuild/Debug/.libs/libwebkitgtk-3.0.so.0(+0x189b447) [0x7fd8d24de447] 10 0x7fd8d24e0950 /o/WebKit/WebKitBuild/Debug/.libs/libwebkitgtk-3.0.so.0(+0x189d950) [0x7fd8d24e0950] 11 0x7fd8d24cf718 /o/WebKit/WebKitBuild/Debug/.libs/libwebkitgtk-3.0.so.0(+0x188c718) [0x7fd8d24cf718] 12 0x7fd8d24cfbfc /o/WebKit/WebKitBuild/Debug/.libs/libwebkitgtk-3.0.so.0(+0x188cbfc) [0x7fd8d24cfbfc] 13 0x7fd8d24d00ce /o/WebKit/WebKitBuild/Debug/.libs/libwebkitgtk-3.0.so.0(+0x188d0ce) [0x7fd8d24d00ce] 14 0x7fd8d24cdeca /o/WebKit/WebKitBuild/Debug/.libs/libwebkitgtk-3.0.so.0(+0x188aeca) [0x7fd8d24cdeca] 15 0x7fd8d24cde04 /o/WebKit/WebKitBuild/Debug/.libs/libwebkitgtk-3.0.so.0(+0x188ae04) [0x7fd8d24cde04] 16 0x7fd8d24cf1e1 /o/WebKit/WebKitBuild/Debug/.libs/libwebkitgtk-3.0.so.0(+0x188c1e1) [0x7fd8d24cf1e1] 17 0x7fd8d24cf160 /o/WebKit/WebKitBuild/Debug/.libs/libwebkitgtk-3.0.so.0(+0x188c160) [0x7fd8d24cf160] 18 0x7fd8cf0029fd /o/WebKit/WebKitBuild/Debug/.libs/libjavascriptcoregtk-3.0.so.0(+0x68d9fd) [0x7fd8cf0029fd] 19 0x7fd8cf003063 /o/WebKit/WebKitBuild/Debug/.libs/libjavascriptcoregtk-3.0.so.0(+0x68e063) [0x7fd8cf003063] 20 0x7fd8cf911e9a /lib/x86_64-linux-gnu/libpthread.so.0(+0x7e9a) [0x7fd8cf911e9a] 21 0x7fd8cf63f74d /lib/x86_64-linux-gnu/libc.so.6(clone+0x6d) [0x7fd8cf63f74d]
Hum, yeah I indeed didn't test a Debug build before landing the nested-loop-support patch of the AudioFileReader. I'll look into this issue, thanks for reporting!
Created attachment 133270 [details] Patch
Committed r111706: <http://trac.webkit.org/changeset/111706>