(gdb) bt full
#0  __lll_lock_wait_private () at ../nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:95
No locals.
#1  0x00007efc60d27cba in _L_lock_12808 () from /lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#2  0x00007efc60d256b5 in __GI___libc_malloc (bytes=15) at malloc.c:2887
        ar_ptr = 0x7efc61061760 <main_arena>
        victim = 0x4000
        __func__ = "__libc_malloc"
#3  0x00007efc60d2b72a in __GI___strdup (s=0x7efc60e20dd8 "/etc/localtime") at strdup.c:42
        len = 15
        new = <optimized out>
#4  0x00007efc60d54f51 in tzset_internal (always=<optimized out>, explicit=explicit@entry=1) at tzset.c:444
        is_initialized = 1
        tz = 0x7efc60e20dd8 "/etc/localtime"
#5  0x00007efc60d55913 in __tz_convert (timer=0x7ffcc8ff5d78, use_localtime=1, tp=0x7efc61066de0 <_tmbuf>) at tzset.c:632
        leap_correction = 139622519803072
        leap_extra_secs = -922788576
#6  0x00007efc60aa18dc in timeval_str_buf (tp=0x7ffcc8ff5e50, rfc5424=false, hires=true, dst=0x7ffcc8ff5e60) at ../lib/util/time_basic.c:52
        t = 1474072803
        tm = 0x7efc6554feb0
        len = 0
#7  0x00007efc61c6c74b in dbghdrclass (level=0, cls=0, location=0x7efc637d9395 "../source4/smbd/server.c:120", func=0x7efc637d9d81 <__FUNCTION__.25385> "sig_term") at ../lib/util/debug.c:1274
        old_errno = 0
        verbose = false
        header_str = "\000$0f\374~\000\000 \302Ke\374~\000\000@_\377\310\374\177\000\000\000\026\304[\000\000\000\000\300kJf\374~\000\000PTBe\374~\000\000P\227\334f\374~\000\000\200\323\343f\374~\000\000PTBe\374~\000\000\230_\377\310\374\177\000\000\200j\271K\374~\000\000\000$0f\374~\000\000\340_\377\310\374\177\000\000\372^\271K\374~\000\000@\b\336f\374~\000\000\300\f\262f\374~\000\000\200\323\343f\374~\000\000jY\271K\374~\000\000\340j5f\374~\000\000jY\271K\374~\000\000\340j5f\374~\000\000p\274Ke\374~\000\000\060\000\000\000\000\000\000\000\000$0f\374~\000\000@\b\336f\374~\000\000\000\000\000\000\000\000\000\000"...
        hs_len = 139622519803072
        tv = {tv_sec = 1474072803, tv_usec = 876049}
        tvbuf = {
          buf = "\000$0f\374~\000\000\000$0f\374~\000\000\000$0f\374~\000\000 \302Ke\374~\000\000\300^\377\310\000\000\000\000 \352`e\374~\000\000\300kJf\374~\000\000\000\000\000\000\000\000\000\000PTBe\374~\000\000\000FLe\374~\000\000\000\000\000\000\000\000\000\000\360\360\320f\374~\000\000\360^\377\310\374\177\000\000\060\246^f\374~\000\000@_\377\310\374\177\000\000\336\025\302[\374~\000"}
#8  0x00007efc637d7aa9 in sig_term (sig=15) at ../source4/smbd/server.c:120
        done_sigterm = 0
        __FUNCTION__ = "sig_term"
#9  <signal handler called>
No locals.
#10 0x00007efc60d22ca5 in _int_malloc (av=<optimized out>, bytes=101) at malloc.c:3806
        nb = <optimized out>
        idx = <optimized out>
        bin = <optimized out>
        victim = <optimized out>
        size = <optimized out>
        victim_index = <optimized out>
        remainder = <optimized out>
        remainder_size = <optimized out>
        block = <optimized out>
        bit = <optimized out>
        map = <optimized out>
        fwd = <optimized out>
        bck = <optimized out>
        errstr = <optimized out>
        __func__ = "_int_malloc"
#11 0x00007efc60d256c0 in __GI___libc_malloc (bytes=101) at malloc.c:2891
        ar_ptr = 0x7efc61061760 <main_arena>
        victim = 0x7efc61061790 <main_arena+48>
        __func__ = "__libc_malloc"
#12 0x00007efc624a6b7e in __talloc_with_prefix (context=0x7efc66e723f0, size=5, prefix_len=0, tc_ret=0x7ffcc8ff65c0) at ../lib/talloc/talloc.c:675
        ptr = 0x7efc66302320 "0!\032\350\374~"
        tc = 0x0
        limit = 0x0
        total_len = 101
        parent = 0x7efc66e72390
#13 0x00007efc624a6d10 in __talloc (context=0x7efc66e723f0, size=5, tc=0x7ffcc8ff65c0) at ../lib/talloc/talloc.c:716
No locals.
#14 0x00007efc624a70a2 in _talloc_named_const (context=0x7efc66e723f0, size=5, name=0x7efc5bc462b0 "../lib/ldb/common/ldb_pack.c:383") at ../lib/talloc/talloc.c:873
        ptr = 0x7efc66302380
---Type <return> to continue, or q <return> to quit---