Program received signal SIGSEGV, Segmentation fault.
0x00007fa102a117aa in handle_output_move_layer (shell=0x203ee20, 
    layer=0x219fc30, data=0x214e580) at desktop-shell/shell.c:5823
5823			if (view->output != output)
(gdb) bt
#0  0x00007fa102a117aa in handle_output_move_layer (shell=0x203ee20, 
    layer=0x219fc30, data=0x214e580) at desktop-shell/shell.c:5823
#1  0x00007fa102a114ea in shell_for_each_layer (shell=0x203ee20, 
    func=0x7fa102a11759 <handle_output_move_layer>, data=0x214e580)
    at desktop-shell/shell.c:5752
#2  0x00007fa102a118a9 in handle_output_move (listener=0x203f1d0, 
    data=0x214e580) at desktop-shell/shell.c:5840
#3  0x0000000000407b3f in wl_signal_emit (signal=0x203bf10, data=0x214e580)
    at /home/test/wld/sandybridge-f20-64-stable-next-wayland/install/include/wayland-server.h:260
#4  0x00000000004115b4 in weston_output_move (output=0x214e580, x=0, y=0)
    at src/compositor.c:3277
#5  0x0000000000410cac in weston_compositor_remove_output (
    compositor=0x203bde0, remove_output=0x20e08a0) at src/compositor.c:3103
#6  0x0000000000410d3b in weston_output_destroy (output=0x20e08a0)
    at src/compositor.c:3115
#7  0x00007fa108ded9af in drm_output_destroy (output_base=0x20e08a0)
    at src/compositor-drm.c:1151
#8  0x0000000000412974 in weston_compositor_shutdown (ec=0x203bde0)
    at src/compositor.c:3728
#9  0x00007fa108df18c1 in drm_destroy (ec=0x203bde0)
    at src/compositor-drm.c:2383
#10 0x0000000000413d55 in main (argc=1, argv=0x7fff0eca0c38)
---Type <return> to continue, or q <return> to quit---
    at src/compositor.c:4309
(gdb) 
(gdb) bt full
#0  0x00007fa102a117aa in handle_output_move_layer (shell=0x203ee20, 
    layer=0x219fc30, data=0x214e580) at desktop-shell/shell.c:5823
        output = 0x214e580
        view = 0xffffffffffffffe9
        x = 4.57846247e-41
        y = 2.37159205e-37
#1  0x00007fa102a114ea in shell_for_each_layer (shell=0x203ee20, 
    func=0x7fa102a11759 <handle_output_move_layer>, data=0x214e580)
    at desktop-shell/shell.c:5752
        ws = 0x20d94a0
#2  0x00007fa102a118a9 in handle_output_move (listener=0x203f1d0, 
    data=0x214e580) at desktop-shell/shell.c:5840
        shell = 0x203ee20
#3  0x0000000000407b3f in wl_signal_emit (signal=0x203bf10, data=0x214e580)
    at /home/test/wld/sandybridge-f20-64-stable-next-wayland/install/include/wayland-server.h:260
        l = 0x203f1d0
        next = 0x203bf10
#4  0x00000000004115b4 in weston_output_move (output=0x214e580, x=0, y=0)
    at src/compositor.c:3277
        old_region = {extents = {x1 = 1920, y1 = 0, x2 = 3840, y2 = 1080}, 
          data = 0x0}
        resource = 0x0
---Type <return> to continue, or q <return> to quit---
#5  0x0000000000410cac in weston_compositor_remove_output (
    compositor=0x203bde0, remove_output=0x20e08a0) at src/compositor.c:3103
        output = 0x214e580
        offset = 1920
#6  0x0000000000410d3b in weston_output_destroy (output=0x20e08a0)
    at src/compositor.c:3115
No locals.
#7  0x00007fa108ded9af in drm_output_destroy (output_base=0x20e08a0)
    at src/compositor-drm.c:1151
        output = 0x20e08a0
        c = 0x203bde0
        origcrtc = 0x20b62e0
#8  0x0000000000412974 in weston_compositor_shutdown (ec=0x203bde0)
    at src/compositor.c:3728
        output = 0x20e08a0
        next = 0x214e580
#9  0x00007fa108df18c1 in drm_destroy (ec=0x203bde0)
    at src/compositor-drm.c:2383
        d = 0x203bde0
#10 0x0000000000413d55 in main (argc=1, argv=0x7fff0eca0c38)
    at src/compositor.c:4309
        loop = 0x2031ec0
        option_shell = 0x0
---Type <return> to continue, or q <return> to quit---
        end = 0x7fff0eca0af0 ""
        section = 0x2031fa0
        primary_client = 0x202f010
        display = 0x2031e30
        shell = 0x203e2e0 "`c\f\002"
        help = 0
        ec = 0x203bde0
        i = 0
        server_socket = 0x0
        socket_name = 0x42f11a "wayland-0"
        config = 0x2032800
        core_options = {{type = WESTON_OPTION_STRING, 
            name = 0x42f124 "backend", short_name = 66, 
            data = 0x7fff0eca0af0}, {type = WESTON_OPTION_STRING, 
            name = 0x42f12c "shell", short_name = 0, data = 0x7fff0eca0ae0}, {
            type = WESTON_OPTION_STRING, name = 0x42f132 "socket", 
            short_name = 83, data = 0x7fff0eca0ab0}, {
            type = WESTON_OPTION_INTEGER, name = 0x42f139 "idle-time", 
            short_name = 105, data = 0x7fff0eca0abc}, {
            type = WESTON_OPTION_STRING, name = 0x42f143 "modules", 
            short_name = 0, data = 0x7fff0eca0ad0}, {
            type = WESTON_OPTION_STRING, name = 0x42f14b "log", 
            short_name = 0, data = 0x7fff0eca0ac8}, {
---Type <return> to continue, or q <return> to quit---
            type = WESTON_OPTION_BOOLEAN, name = 0x42f14f "help", 
            short_name = 104, data = 0x7fff0eca0ab8}, {
            type = WESTON_OPTION_BOOLEAN, name = 0x42f154 "version", 
            short_name = 0, data = 0x7fff0eca0aac}}
        backend = 0x2033820 "0Y\r\002"
        ret = 0
        signals = {0x2031f50, 0x2032710, 0x2032760, 0x20327b0}
        fd = -1
        option_backend = 0x0
        modules = 0x203e2e0 "`c\f\002"
        primary_client_destroyed = {link = {prev = 0x7fff00000082, 
            next = 0x20}, notify = 0x7fff00000050}
        backend_init = 0x7fa108df2d16 <backend_init>
        option_modules = 0x0
        log = 0x20319e0 "weston.log"
        idle_time = 300
        version = 0