[Webkit-unassigned] [Bug 210800] New: REGRESSION(r260380): [GTK] fast/mediastream/MediaStream-video-element-remove-track.html is crashing

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=210800

            Bug ID: 210800
           Summary: REGRESSION(r260380): [GTK]
                    fast/mediastream/MediaStream-video-element-remove-trac
                    k.html is crashing
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Media
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: dpino at igalia.com

The test started crashing since:

[r260379-r260382]             UNKNOWN
r260383                       CRASH (Expected: FAIL)
[r260384-r260399]             UNKNOWN

Likely due to r260380 (MediaPlayerPrivateMediaStreamAVFObjC should start play a newly added audio track if it is playing).

Stacktrace: https://build.webkit.org/results/GTK%20Linux%2064-bit%20Release%20(Tests)/r260383%20(13411)/fast/mediastream/MediaStream-video-element-remove-track-crash-log.txt

Thread 1 (Thread 0x7faa687b09c0 (LWP 95220)):
#0  _g_log_abort () at ../../Source/glib-2.58.1/glib/gmessages.c:557
#1  0x00007faa6aecf559 in g_logv () at ../../Source/glib-2.58.1/glib/gmessages.c:1371
#2  0x00007faa6aecf712 in g_log () at ../../Source/glib-2.58.1/glib/gmessages.c:1413
#3  0x00007faa6afadc53 in g_object_unref () at ../../Source/glib-2.58.1/gobject/gobject.c:3309
#4  g_object_unref () at ../../Source/glib-2.58.1/gobject/gobject.c:3238
#5  0x00007faa6cff569a in _gst_message_free () at ../../Source/gstreamer-1.16.1/gst/gstmessage.c:212
#6  0x00007faa6cfce317 in gst_message_unref () at ../../Source/gstreamer-1.16.1/gst/gstmessage.h:382
#7  gst_bus_source_dispatch () at ../../Source/gstreamer-1.16.1/gst/gstbus.c:840
#8  0x00007faa6aec86b8 in g_main_dispatch () at ../../Source/glib-2.58.1/glib/gmain.c:3182
#9  g_main_context_dispatch () at ../../Source/glib-2.58.1/glib/gmain.c:3847
#10 0x00007faa6aec8a78 in g_main_context_iterate () at ../../Source/glib-2.58.1/glib/gmain.c:3920
#11 0x00007faa6aec8d62 in g_main_loop_run () at ../../Source/glib-2.58.1/glib/gmain.c:4116
#12 0x00007faa70c2dbc0 in WTF::RunLoop::run() () from /home/slave/webkitgtk/gtk-linux-64-release/build/WebKitBuild/Release/lib/libjavascriptcoregtk-4.0.so.18
#13 0x00007faa7355a34d in int WebKit::AuxiliaryProcessMain<WebKit::WebProcess, WebKit::WebProcessMainGtk>(int, char**) () from /home/slave/webkitgtk/gtk-linux-64-release/build/WebKitBuild/Release/lib/libwebkit2gtk-4.0.so.37
#14 0x00007faa6a27809b in __libc_start_main (main=0x5581020a4c10 <main>, argc=4, argv=0x7fffc626ebf8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffc626ebe8) at ../csu/libc-start.c:308
#15 0x00005581020a4c8a in _start ()

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