(gdb) c
Continuing.

Program received signal SIGHUP, Hangup.
0x0000003762e13c50 in _dl_close_worker () from /lib64/ld-linux-x86-64.so.2
(gdb) bt
#0  0x0000003762e13c50 in _dl_close_worker () from /lib64/ld-linux-x86-64.so.2
#1  0x0000003762e1487e in _dl_close () from /lib64/ld-linux-x86-64.so.2
#2  0x0000003762e0eca6 in _dl_catch_error () from /lib64/ld-linux-x86-64.so.2
#3  0x0000003763a0162c in _dlerror_run () from /lib64/libdl.so.2
#4  0x0000003763a010ff in dlclose () from /lib64/libdl.so.2
#5  0x0000003775605cab in ?? () from /lib64/libpam.so.0
#6  0x0000003775603513 in pam_end () from /lib64/libpam.so.0
#7  0x0000000000402e7a in quit (wl=0x7fff1e63f200, status=0) at weston-launch.c:414
#8  0x0000000000403067 in handle_signal (wl=0x7fff1e63f200) at weston-launch.c:447
#9  0x0000000000403f71 in main (argc=3, argv=0x7fff1e63f4e8) at weston-launch.c:667
(gdb) bt full
#0  0x0000003762e13c50 in _dl_close_worker () from /lib64/ld-linux-x86-64.so.2
No symbol table info available.
#1  0x0000003762e1487e in _dl_close () from /lib64/ld-linux-x86-64.so.2
No symbol table info available.
#2  0x0000003762e0eca6 in _dl_catch_error () from /lib64/ld-linux-x86-64.so.2
No symbol table info available.
#3  0x0000003763a0162c in _dlerror_run () from /lib64/libdl.so.2
No symbol table info available.
#4  0x0000003763a010ff in dlclose () from /lib64/libdl.so.2
No symbol table info available.
#5  0x0000003775605cab in ?? () from /lib64/libpam.so.0
No symbol table info available.
#6  0x0000003775603513 in pam_end () from /lib64/libpam.so.0
No symbol table info available.
#7  0x0000000000402e7a in quit (wl=0x7fff1e63f200, status=0) at weston-launch.c:414
        err = 0
#8  0x0000000000403067 in handle_signal (wl=0x7fff1e63f200) at weston-launch.c:447
        cov_s1_ = 0
        sig = {ssi_signo = 17, ssi_errno = 0, ssi_code = 1, ssi_pid = 19225, ssi_uid = 1000, ssi_fd = 0, ssi_tid = 0, ssi_band = 0, ssi_overrun = 0, ssi_trapno = 0, ssi_status = 0, ssi_int = 0, ssi_ptr = 0, ssi_utime = 38,
          ssi_stime = 34, ssi_addr = 0, __pad = '\000' <repeats 47 times>}
        pid = 19225
        status = 0
        ret = 0
#9  0x0000000000403f71 in main (argc=3, argv=0x7fff1e63f4e8) at weston-launch.c:667
        ev = {events = 1, data = {ptr = 0x9, fd = 9, u32 = 9, u64 = 9}}
        n = 1
        cov_s3_ = 2
        env = 0xca0000
---Type <return> to continue, or q <return> to quit---
        i = 55
        c = -1
        tty = 0x0
        new_user = 0x0
        sleep_fork = 0
        opts = {{name = 0x407ad5 "user", has_arg = 1, flag = 0x0, val = 117}, {name = 0x407ada "tty", has_arg = 1, flag = 0x0, val = 116}, {name = 0x407ade "verbose", has_arg = 0, flag = 0x0, val = 118}, {name = 0x407ae6 "sleep",
            has_arg = 2, flag = 0x0, val = 115}, {name = 0x407aec "help", has_arg = 0, flag = 0x0, val = 104}, {name = 0x0, has_arg = 0, flag = 0x0, val = 0}}
        wl = {pc = {conv = 0x40218a <pam_conversation_fn>, appdata_ptr = 0x7fff1e63f200}, ph = 0x1c4aa00, tty = 4, ttynr = 2, sock = {7, 8}, pw = 0x37635b33c0, epollfd = 5, signalfd = 9, child = 0, verbose = 0}
        child_argv = 0x7fff1e63f4f0
(gdb)