[Webkit-unassigned] [Bug 219277] New: [GStreamer] Crash in gst_gl_insert_debug_marker

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=219277

            Bug ID: 219277
           Summary: [GStreamer] Crash in gst_gl_insert_debug_marker
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Media
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: mcatanzaro at gnome.org

I hit this crash on https://www.vox.com/policy-and-politics/21562986/president-joe-biden-health-care-plan-obamacare-medicaid using Tech Preview with 2.30.2. Sadly it's not reproducible.

#0  gst_gl_insert_debug_marker (context=0x0, 
    format=format at entry=0x7f8080f43e82 "starting element %s")
    at ../gst-libs/gst/gl/gstgldebug.c:387
387       const GstGLFuncs *gl = context->gl_vtable;
[Current thread is 1 (Thread 0x7f7e89ffb700 (LWP 196))]
(gdb) bt full
#0  gst_gl_insert_debug_marker
    (context=0x0, format=format at entry=0x7f8080f43e82 "starting element %s")
    at ../gst-libs/gst/gl/gstgldebug.c:387
        gl = <optimized out>
        string = 0x7f7e400c6f28 ""
        len = <optimized out>
        args = 
            {{gp_offset = 1074259696, fp_offset = 32638, overflow_arg_area = 0x76373da359000e00, reg_save_area = 0x7f7e400c6b70}}
#1  0x00007f8080f0fcca in gst_gl_base_filter_gl_start
    (context=<optimized out>, data=<optimized out>)
    at ../gst-libs/gst/gl/gstglbasefilter.c:283
        filter = 0x564cd4391580 [GstGLUploadElement]
        filter_class = 0x564cd438c740
#2  0x00007f8080f387f7 in _run_message_sync (message=0x7f7e4f7fb590)
    at ../gst-libs/gst/gl/gstglwindow.c:573
#3  0x00007f8080f38796 in _run_message_async (message=0x7f7df86d05a0)
    at ../gst-libs/gst/gl/gstglwindow.c:640
#4  0x00007f808373518f in g_main_dispatch (context=0x7f7e480024a0)
    at ../glib/gmain.c:3325
        dispatch = 0x7f80837313b0 <g_idle_dispatch>
        prev_source = 0x0
        begin_time_nsec = 0
        was_in_call = 0
        user_data = 0x7f7df86d05a0
        callback = 0x7f8080f38780 <_run_message_async>
        cb_funcs = <optimized out>
        cb_data = 0x7f7df86d3f40
        need_destroy = <optimized out>
        source = 0x7f7df8004c70
        current = 0x7f7e4004ef40
        i = 0
        __func__ = "g_main_dispatch"
#5  g_main_context_dispatch (context=0x7f7e480024a0) at ../glib/gmain.c:4043
#6  0x00007f8083735538 in g_main_context_iterate (context=0x7f7e480024a0, block=block at entry=1, dispatch=dispatch at entry=1, self=<optimized out>) at ../glib/gmain.c:4119
        max_priority = 2147483647
        timeout = -1
        some_ready = 1
        nfds = <optimized out>
        allocated_nfds = <optimized out>
        fds = 0x7f7e480021e0
#7  0x00007f8083735853 in g_main_loop_run (loop=0x7f7e4800dae0) at ../glib/gmain.c:4317
        __func__ = "g_main_loop_run"
#8  0x00007f8080f38889 in gst_gl_window_default_run (window=0x7f7e1c0061a0 [GstGLDummyWindow]) at ../gst-libs/gst/gl/gstglwindow.c:499
        priv = 0x7f7e1c006170
#9  0x00007f8080f1aba8 in gst_gl_context_create_thread (context=0x564cd3b01700 [GstGLContextEGL]) at ../gst-libs/gst/gl/gstglcontext.c:1305
        context_class = 0x7f7e6800c020
        window_class = 0x7f7e6800ee90
        compiled_api = 65539
        user_api = <optimized out>
        gl_api = <optimized out>
        display_api = <optimized out>
        api_string = <optimized out>
        compiled_api_s = 0x7f7e4800ff00 "gl_CurrentAttribVertMESA"
        user_api_s = 0x7f7e480021e0 "9"
        display_api_s = 0x7f7e40007760 "bvec2"
        user_choice = <optimized out>
        error = 0x7f7e8a7f9c80
        other_context = 0x564cd3b62190 [GstGLWrappedContext]
        __func__ = "gst_gl_context_create_thread"
#10 0x00007f808375f251 in g_thread_proxy (data=0x7f7e680124c0) at ../glib/gthread.c:820
        thread = 0x7f7e680124c0
        __func__ = "g_thread_proxy"
#11 0x00007f80817524d2 in start_thread (arg=<optimized out>) at pthread_create.c:477
        ret = <optimized out>
        pd = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140181457843968, -399663332442784368, 140181466225358, 140181466225359, 140181457841472, 8396800, 326809689419398544, 393254332188704144}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = 0
#12 0x00007f8083c5f2a3 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

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