(gdb) bt
#0  0x0000003a9200e45b in recv () from /lib64/libpthread.so.0
#1  0x00007f6b6c9cca37 in weston_launcher_drm_set_master (compositor=0x14b3d30, drm_fd=15, master=0 '\000') at launcher-util.c:155
#2  0x00007f6b6c9c4f5f in drm_destroy (ec=0x14b3d30) at compositor-drm.c:2267
#3  0x0000000000412281 in main (argc=1, argv=0x7fff344dd908) at compositor.c:3478
(gdb) bt full
#0  0x0000003a9200e45b in recv () from /lib64/libpthread.so.0
No symbol table info available.
#1  0x00007f6b6c9cca37 in weston_launcher_drm_set_master (compositor=0x14b3d30, drm_fd=15, master=0 '\000') at launcher-util.c:155
        msg = {msg_name = 0x0, msg_namelen = 0, msg_iov = 0x7fff344dd600, msg_iovlen = 1, msg_control = 0x7fff344dd5e0, msg_controllen = 20, msg_flags = 0}
        cmsg = 0x7fff344dd5e0
        control = "\024\000\000\000\000\000\000\000\001\000\000\000\001\000\000\000\017\000\000\000\377\177\000"
        ret = 0
        len = 8
        message = {header = {opcode = 1}, set_master = 0}
        data = 0x7fff344dd5f0
        iov = {iov_base = 0x7fff344dd5d0, iov_len = 8}
#2  0x00007f6b6c9c4f5f in drm_destroy (ec=0x14b3d30) at compositor-drm.c:2267
        d = 0x14b3d30
#3  0x0000000000412281 in main (argc=1, argv=0x7fff344dd908) at compositor.c:3478
        config_fd = 10
        help = 0
        backend = 0x4315cb "drm-backend.so"
        config = 0x14b0d40
        signals = {0x14b0cf0, 0x14b15c0, 0x14b1610, 0x14b1660}
        backend_init = 0x7f6b6c9c626e <backend_init>
        shell = 0x14b6180 "desktop-shell.so"
        modules = 0x14b16b0 ""
        log = 0x0
        idle_time = 300
        section = 0x14b18f0
        ret = 0
        ec = 0x14b3d30
        loop = 0x14b0c60
        i = 0
        version = 0
        core_options = {{type = WESTON_OPTION_STRING, name = 0x431475 "backend", short_name = 66, data = 0x7fff344dd7d8}, {type = WESTON_OPTION_STRING, name = 0x43147d "shell", short_name = 0, data = 0x7fff344dd7d0}, {
            type = WESTON_OPTION_STRING, name = 0x431483 "socket", short_name = 83, data = 0x7fff344dd7a8}, {type = WESTON_OPTION_INTEGER, name = 0x43148a "idle-time", short_name = 105, data = 0x7fff344dd7b4}, {
            type = WESTON_OPTION_STRING, name = 0x431494 "modules", short_name = 0, data = 0x7fff344dd7c0}, {type = WESTON_OPTION_STRING, name = 0x43149c "log", short_name = 0, data = 0x7fff344dd7b8}, {
            type = WESTON_OPTION_BOOLEAN, name = 0x4314a0 "help", short_name = 104, data = 0x7fff344dd7b0}, {type = WESTON_OPTION_BOOLEAN, name = 0x4314a5 "version", short_name = 0, data = 0x7fff344dd7a4}}
---Type <return> to continue, or q <return> to quit---
        display = 0x14b0bd0
        option_modules = 0x0
        socket_name = 0x43146b "wayland-0"
(gdb)