Program received signal SIGINT, Interrupt.
0x00007ffff6e8b22d in recvmsg () from /lib/x86_64-linux-gnu/libpthread.so.0
(gdb) info threads
  Id   Target Id         Frame 
  2    Thread 0x7ffff4ab1700 (LWP 16049) "simple-egl" 0x00007ffff6e8a89c in __lll_lock_wait () from /lib/x86_64-linux-gnu/libpthread.so.0
* 1    Thread 0x7ffff4ab3700 (LWP 16046) "simple-egl" 0x00007ffff6e8b22d in recvmsg () from /lib/x86_64-linux-gnu/libpthread.so.0
(gdb) bt full
#0  0x00007ffff6e8b22d in recvmsg () from /lib/x86_64-linux-gnu/libpthread.so.0
No symbol table info available.
#1  0x00007ffff77a6d44 in wl_os_recvmsg_cloexec (sockfd=7, msg=0x7fffffffdd60, flags=0) at wayland-os.c:123
        len = <optimized out>
#2  0x00007ffff77a4ec3 in wl_connection_read (connection=0x605150) at connection.c:333
        iov = {{iov_base = 0x6053cc, iov_len = 3460}, {iov_base = 0x605150, iov_len = 636}}
        msg = {msg_name = 0x0, msg_namelen = 0, msg_iov = 0x7fffffffdd40, msg_iovlen = 2, msg_control = 0x7fffffffdda0, msg_controllen = 128, msg_flags = 0}
        cmsg = "\000 @\000\000\000\000\000\\\336\377\377\377\177\000\000\260fa\000\000\000\000\000\220\334\377\377\377\177\000\000\000\000\000\000\005\000\000\000(\000\000\000\000\000\000\000\003\000\000\000\000\000\000\000\001\000\000\000\000\000\000\000\002\000\000\000\377\377\377\377\250ga\000\000\000\000\000\060uz\367\377\177\000\000\000\006T\030\202v\250r \225\232\367\377\177\000\000\020ka", '\000' <repeats 17 times>, "\001\000\000"
        len = <optimized out>
        count = <optimized out>
#3  0x00007ffff77a3aa4 in dispatch_queue (display=0x605010, queue=0x605098, block=block@entry=1) at wayland-client.c:868
        len = <optimized out>
        count = <optimized out>
        ret = <optimized out>
#4  0x00007ffff77a45a2 in wl_display_dispatch (display=<optimized out>) at wayland-client.c:979
No locals.
#5  0x0000000000401d5f in main (argc=<optimized out>, argv=<optimized out>) at simple-egl.c:676
        thread1 = 140737298241280
        sigint = {__sigaction_handler = {sa_handler = 0x402050 <signal_int>, sa_sigaction = 0x402050 <signal_int>}, sa_mask = {__val = {0 <repeats 16 times>}}, sa_flags = -2147483648, sa_restorer = 0x0}
        display = {display = 0x605010, registry = 0x609180, compositor = 0x6091f0, shell = 0x632430, seat = 0x632500, pointer = 0x632e80, keyboard = 0x616b10, shm = 0x609230, cursor_theme = 0x6092c0, default_cursor = 0x6142e0, 
          cursor_surface = 0x632db0, egl = {dpy = 0x7ffff00008c0, ctx = 0x0, conf = 0x0}, window = 0x7fffffffdf30}
        window = {display = 0x7fffffffdf90, geometry = {width = 0, height = 0}, window_size = {width = 250, height = 250}, gl = {rotation_uniform = 0, pos = 0, col = 0}, native = 0x0, surface = 0x0, shell_surface = 0x0, 
          egl_surface = 0x0, callback = 0x0, fullscreen = 0, configured = 0, opaque = 0}
        i = <optimized out>
        ret = <optimized out>
        __PRETTY_FUNCTION__ = "main"
(gdb) thread 2
[Switching to thread 2 (Thread 0x7ffff4ab1700 (LWP 16049))]
#0  0x00007ffff6e8a89c in __lll_lock_wait () from /lib/x86_64-linux-gnu/libpthread.so.0
(gdb) bt full
#0  0x00007ffff6e8a89c in __lll_lock_wait () from /lib/x86_64-linux-gnu/libpthread.so.0
No symbol table info available.
#1  0x00007ffff6e86065 in _L_lock_858 () from /lib/x86_64-linux-gnu/libpthread.so.0
No symbol table info available.
#2  0x00007ffff6e85eba in pthread_mutex_lock () from /lib/x86_64-linux-gnu/libpthread.so.0
No symbol table info available.
#3  0x00007ffff77a3e1f in wl_display_create_queue (display=0x605010) at wayland-client.c:185
        queue = 0x7ffff00092d0
#4  0x00007fffeed5a0c0 in wayland_drm_display_init_screen (ndpy=0x7ffff00091f0) at wayland/native_drm.c:204
No locals.
#5  0x00007fffeed53806 in egl_g3d_initialize (drv=0x7ffff0008fd0, dpy=0x7ffff00008c0) at common/egl_g3d.c:546
        gdpy = 0x7ffff00091d0
        nplat = 0x7fffefd84e30 <wayland_platform>
#6  0x00007ffff7bc60fb in _eglMatchAndInitialize (dpy=<optimized out>) at egldriver.c:608
        mod = 0x7ffff0001600
        drv = <optimized out>
        i = 0
#7  _eglMatchAndInitialize (dpy=0x7ffff00008c0) at egldriver.c:581
        drv = 0x0
#8  0x00007ffff7bc6433 in _eglMatchDriver (dpy=dpy@entry=0x7ffff00008c0, test_only=test_only@entry=0) at egldriver.c:639
        best_drv = <optimized out>
        __PRETTY_FUNCTION__ = "_eglMatchDriver"
#9  0x00007ffff7bc13e2 in eglInitialize (dpy=0x7ffff00008c0, major=major@entry=0x7ffff4ab0e74, minor=minor@entry=0x7ffff4ab0e78) at eglapi.c:317
        __FUNCTION__ = "eglInitialize"
#10 0x0000000000402b12 in init_egl (data=0x7fffffffdf90) at simple-egl.c:141
        display = 0x7fffffffdf90
        window = 0x7fffffffdf30
        opaque = <optimized out>
        context_attribs = {12440, 2, 12344}
        config_attribs = {12339, 4, 12324, 1, 12323, 1, 12322, 1, 12321, 1, 12352, 4, 12344}
        major = 0
        minor = 1
        n = <optimized out>
        ret = <optimized out>
        __PRETTY_FUNCTION__ = "init_egl"
#11 0x00007ffff6e83e9a in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
No symbol table info available.
#12 0x00007ffff6bb0ccd in clone () from /lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#13 0x0000000000000000 in ?? ()
No symbol table info available.