[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib64/libthread_db.so.1".
__lll_robust_lock_wait () at ../sysdeps/unix/sysv/linux/x86_64/lowlevelrobustlock.S:85
85		movl	(%rdi), %eax

Thread 1 (Thread 0x7f8e7ca13800 (LWP 1003)):
#0  __lll_robust_lock_wait () at ../sysdeps/unix/sysv/linux/x86_64/lowlevelrobustlock.S:85
#1  0x00007f8e7c355558 in __pthread_mutex_lock_full (mutex=0x7f8e7ca650a8) at ../nptl/pthread_mutex_lock.c:259
#2  0x00007f8e7c3558b5 in __GI___pthread_mutex_lock (mutex=mutex@entry=0x7f8e7ca650a8) at ../nptl/pthread_mutex_lock.c:73
#3  0x00007f8e7551608d in allrecord_mutex_lock (m=0x7f8e7ca65000, waitflag=<optimized out>) at ../common/mutex.c:201
#4  0x00007f8e75516346 in tdb_mutex_lock (tdb=tdb@entry=0x7f8e7ea80bb0, rw=rw@entry=1, off=off@entry=168, len=len@entry=1, waitflag=waitflag@entry=true, pret=pret@entry=0x7ffdc96d0b20) at ../common/mutex.c:307
#5  0x00007f8e7550eaf6 in fcntl_lock (waitflag=true, len=1, off=168, rw=1, tdb=0x7f8e7ea80bb0) at ../common/lock.c:44
#6  tdb_brlock (tdb=0x7f8e7ea80bb0, rw_type=1, offset=168, len=1, flags=TDB_LOCK_WAIT) at ../common/lock.c:174
#7  0x00007f8e7550efab in tdb_nest_lock (tdb=0x7f8e7ea80bb0, offset=168, ltype=1, flags=<optimized out>) at ../common/lock.c:346
#8  0x00007f8e7550f262 in tdb_lock_list (tdb=0x7f8e7ea80bb0, list=0, ltype=1, waitflag=TDB_LOCK_WAIT) at ../common/lock.c:438
#9  0x00007f8e7550f2fb in tdb_lock (tdb=tdb@entry=0x7f8e7ea80bb0, list=0, ltype=1) at ../common/lock.c:456
#10 0x00007f8e7550e001 in tdb_next_lock (tdb=tdb@entry=0x7f8e7ea80bb0, tlock=tlock@entry=0x7ffdc96d0cd0, rec=rec@entry=0x7ffdc96d0c70) at ../common/traverse.c:76
#11 0x00007f8e7550e2bb in tdb_traverse_internal (tdb=tdb@entry=0x7f8e7ea80bb0, fn=fn@entry=0x7f8e77b2fe20 <gencache_iterate_blobs_fn>, private_data=private_data@entry=0x7ffdc96d0d10, tl=tl@entry=0x7ffdc96d0cd0) at ../common/traverse.c:161
#12 0x00007f8e7550e497 in tdb_traverse (tdb=0x7f8e7ea80bb0, fn=fn@entry=0x7f8e77b2fe20 <gencache_iterate_blobs_fn>, private_data=private_data@entry=0x7ffdc96d0d10) at ../common/traverse.c:260
#13 0x00007f8e77b30ed5 in gencache_iterate_blobs (fn=0x7f8e77b2f880 <gencache_iterate_fn>, private_data=0x7ffdc96d0d50, pattern=0x7f8e7eac3090 "NEG_CONN_CACHE/GER,*") at ../source3/lib/gencache.c:914
#14 0x00007f8e77b30f71 in gencache_iterate (fn=fn@entry=0x7f8e76cc4260 <delete_matches>, private_data=private_data@entry=0x0, pattern=pattern@entry=0x7f8e7eac3090 "NEG_CONN_CACHE/GER,*") at ../source3/lib/gencache.c:978
#15 0x00007f8e76cc469e in flush_negative_conn_cache_for_domain (domain=0x7f8e7ea80d40 "GER") at ../source3/libsmb/conncache.c:219
#16 0x00007f8e7c7e4b9c in winbindd_flush_negative_conn_cache (domain=0x7f8e7ea81260) at ../source3/winbindd/winbindd_dual.c:562
#17 0x00007f8e7c7e51cc in winbind_msg_online (msg_ctx=0x7f8e7ea7b580, private_data=<optimized out>, msg_type=<optimized out>, server_id=..., data=<optimized out>) at ../source3/winbindd/winbindd_dual.c:687
#18 0x00007f8e77b25173 in messaging_dispatch_rec (msg_ctx=0x7f8e7ea7b580, rec=rec@entry=0x7ffdc96d0ed0) at ../source3/lib/messages.c:915
#19 0x00007f8e77b25656 in messaging_recv_cb (msg=0x7f8e7ea7ba98 "\003\004", msg_len=56, fds=0x0, num_fds=0, private_data=<optimized out>) at ../source3/lib/messages.c:265
#20 0x00007f8e77b42bb5 in unix_dgram_recv_handler (w=<optimized out>, fd=<optimized out>, events=<optimized out>, private_data=0x7f8e7ea7ba20) at ../source3/lib/unix_msg/unix_msg.c:340
#21 0x00007f8e750f7363 in epoll_event_loop (tvalp=0x7ffdc96d1270, epoll_ev=0x7f8e7ea7b4f0) at ../tevent_epoll.c:728
#22 epoll_event_loop_once (ev=<optimized out>, location=<optimized out>) at ../tevent_epoll.c:926
#23 0x00007f8e750f58a7 in std_event_loop_once (ev=0x7f8e7ea7b2b0, location=0x7f8e7c838ee8 "../source3/winbindd/winbindd.c:1702") at ../tevent_standard.c:114
#24 0x00007f8e750f20cd in _tevent_loop_once (ev=0x7f8e7ea7b2b0, location=0x7f8e7c838ee8 "../source3/winbindd/winbindd.c:1702") at ../tevent.c:533
#25 0x00007f8e7c7af6ac in main (argc=<optimized out>, argv=<optimized out>) at ../source3/winbindd/winbindd.c:1702