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Details

Type: Bug
Resolution: Done
Priority: Major
Fix Version/s: 1.0.0.CR2
Affects Version/s: None
Component/s: Qpid Dispatch Router
Labels:
- qpid-dispatch-0.4-10

Target Release:

1.0.0.GA
Steps to Reproduce:
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1) Have connector to qpid broker
2) Link routing "pulp." to qpid broker
3) Start qdrouterd
4) In one terminal, create queues on the broker:

for j in $(seq 0 10); do for i in $(seq 0 50); do qpid-config add queue pulp.pmoravec.${j}.${i}; done; echo $j; done

5) In another terminal, run concurrently script that creates consumers for nodes being concurrently created in qpid broker (and - IMPORTANT - due to heartbeats enabled, the attach frame for the link is followed by close frame due to timeouted connection):

#!/usr/bin/python from time import sleep from uuid import uuid4 from proton import ConnectionException, Timeout from proton import SSLDomain, SSLException from proton.utils import BlockingConnection import random import threading import traceback ROUTER_ADDRESS = "proton+amqp://pmoravec-sat61-rhel7.gsslab.brq.redhat.com:5648" ADDRESS = "pulp.pmoravec" HEARTBEAT = 2 SLEEP_MIN = 1.9 SLEEP_MAX = 2.1 THREADS = 10 class ReceiverThread(threading.Thread): def __init__(self, _id, address=ADDRESS, domain=None): super(ReceiverThread, self).__init__() self._id = _id self.address = address self.domain = domain self.running = True self.nr = 1 def connect(self): self.conn = BlockingConnection(ROUTER_ADDRESS, ssl_domain=self.domain, heartbeat=HEARTBEAT) self.conn.create_receiver('%s.%s' %(self.address, 0), name=str(uuid4()), dynamic=False, options=None) def reconnect(self): print "(%s): something got broken, reconnecting.." % self._id try: self.conn.close() except: print "(%s): receiver thread: failed to close connection" % self._id pass self.connect() def run(self): self.connect() while self.running: sleep(random.uniform(SLEEP_MIN,SLEEP_MAX)) self.nr += 1 try: self.recv = self.conn.create_receiver('%s.%s' %(self.address, self.nr), name=str(uuid4()), dynamic=False, options=None) except Exception as e: print "(%s): receiver failed, retrying.." % self._id self.reconnect() def stop(self): self.running = False threads = [] for i in range(THREADS): threads.append(ReceiverThread(i, '%s.%s' %(ADDRESS, i))) threads[i].start() _in = raw_input("Press Enter to exit:") for i in range(THREADS): threads[i].stop() for i in range(THREADS): threads[i].join()

6) Wait some time, qdrouterd will log "send: Connection reset by peer" and suddenly stop responding
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1) Have connector to qpid broker 2) Link routing "pulp." to qpid broker 3) Start qdrouterd 4) In one terminal, create queues on the broker: for j in $(seq 0 10); do for i in $(seq 0 50); do qpid-config add queue pulp.pmoravec.${j}.${i}; done; echo $j; done 5) In another terminal, run concurrently script that creates consumers for nodes being concurrently created in qpid broker (and - IMPORTANT - due to heartbeats enabled, the attach frame for the link is followed by close frame due to timeouted connection): #!/usr/bin/python from time import sleep from uuid import uuid4 from proton import ConnectionException, Timeout from proton import SSLDomain, SSLException from proton.utils import BlockingConnection import random import threading import traceback ROUTER_ADDRESS = "proton+amqp: //pmoravec-sat61-rhel7.gsslab.brq.redhat.com:5648" ADDRESS = "pulp.pmoravec" HEARTBEAT = 2 SLEEP_MIN = 1.9 SLEEP_MAX = 2.1 THREADS = 10 class ReceiverThread(threading. Thread ): def __init__(self, _id, address=ADDRESS, domain=None): super (ReceiverThread, self).__init__() self._id = _id self.address = address self.domain = domain self.running = True self.nr = 1 def connect(self): self.conn = BlockingConnection(ROUTER_ADDRESS, ssl_domain=self.domain, heartbeat=HEARTBEAT) self.conn.create_receiver( '%s.%s' %(self.address, 0), name=str(uuid4()), dynamic=False, options=None) def reconnect(self): print "(%s): something got broken, reconnecting.." % self._id try : self.conn.close() except: print "(%s): receiver thread: failed to close connection" % self._id pass self.connect() def run(self): self.connect() while self.running: sleep(random.uniform(SLEEP_MIN,SLEEP_MAX)) self.nr += 1 try : self.recv = self.conn.create_receiver( '%s.%s' %(self.address, self.nr), name=str(uuid4()), dynamic=False, options=None) except Exception as e: print "(%s): receiver failed, retrying.." % self._id self.reconnect() def stop(self): self.running = False threads = [] for i in range(THREADS): threads.append(ReceiverThread(i, '%s.%s' %(ADDRESS, i))) threads[i].start() _in = raw_input( "Press Enter to exit:" ) for i in range(THREADS): threads[i].stop() for i in range(THREADS): threads[i].join() 6) Wait some time, qdrouterd will log "send: Connection reset by peer" and suddenly stop responding

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Description

qdrouterd becomes unresponsive (qdstat timeouts, any connection frozen,..) when trying to link route to a destination just being created on other side. See reproducer for details.

Coredump (gcore generated) available on 10.34.84.149 (root/redhat) as core.24217 (big to attach), backtraces are:

Thread 8 (Thread 0x7f8f42e171c0 (LWP 24217)):
#0  __lll_lock_wait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:135
#1  0x00007f8f42570d32 in _L_lock_791 () from /lib64/libpthread.so.0
#2  0x00007f8f42570c38 in __GI___pthread_mutex_lock (mutex=0x143cb20) at pthread_mutex_lock.c:64
#3  0x00007f8f429f3715 in sys_mutex_lock (mutex=<optimized out>) at /usr/src/debug/qpid-dispatch-0.4/src/posix/threading.c:62
#4  0x00007f8f429f6b50 in router_writable_link_handler (context=0x13d4030, link=0x7f8f1c034130)
    at /usr/src/debug/qpid-dispatch-0.4/src/router_node.c:460
#5  0x00007f8f429ea4d6 in do_writable (pn_link=0x7f8f1c042fb0) at /usr/src/debug/qpid-dispatch-0.4/src/container.c:215
#6  process_handler (unused=<optimized out>, qd_conn=<optimized out>, container=0x13b8650)
    at /usr/src/debug/qpid-dispatch-0.4/src/container.c:446
#7  handler (handler_context=0x13b8650, conn_context=<optimized out>, event=event@entry=QD_CONN_EVENT_PROCESS, 
    qd_conn=<optimized out>) at /usr/src/debug/qpid-dispatch-0.4/src/container.c:496
#8  0x00007f8f429fc9ac in process_connector (cxtr=0x7f8f14048e30, qd_server=0x13dd5d0)
    at /usr/src/debug/qpid-dispatch-0.4/src/server.c:398
#9  thread_run (arg=<optimized out>) at /usr/src/debug/qpid-dispatch-0.4/src/server.c:626
#10 0x00007f8f429fd5c0 in qd_server_run (qd=0x119f030) at /usr/src/debug/qpid-dispatch-0.4/src/server.c:959
#11 0x0000000000401cd8 in main_process (config_path=config_path@entry=0x7ffff625a6be "/etc/qpid-dispatch/qdrouterd.conf", 
    python_pkgdir=python_pkgdir@entry=0x402401 "/usr/lib/qpid-dispatch/python", fd=fd@entry=2)
    at /usr/src/debug/qpid-dispatch-0.4/router/src/main.c:135
#12 0x0000000000401950 in main (argc=3, argv=0x7ffff62594a8) at /usr/src/debug/qpid-dispatch-0.4/router/src/main.c:335

Thread 7 (Thread 0x7f8f2effd700 (LWP 24224)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f8f429fc819 in thread_run (arg=<optimized out>) at /usr/src/debug/qpid-dispatch-0.4/src/server.c:508
#2  0x00007f8f4256edf5 in start_thread (arg=0x7f8f2effd700) at pthread_create.c:308
#3  0x00007f8f41aca1ad in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 6 (Thread 0x7f8f2f7fe700 (LWP 24223)):
#0  __lll_lock_wait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:135
#1  0x00007f8f42570d32 in _L_lock_791 () from /lib64/libpthread.so.0
#2  0x00007f8f42570c38 in __GI___pthread_mutex_lock (mutex=0x143cb20) at pthread_mutex_lock.c:64
#3  0x00007f8f429f3715 in sys_mutex_lock (mutex=<optimized out>) at /usr/src/debug/qpid-dispatch-0.4/src/posix/threading.c:62
#4  0x00007f8f429fa1c2 in qd_router_send (qd=qd@entry=0x119f030, address=address@entry=0x7f8f2000c0a0, msg=msg@entry=0x7f8f2000faa0)
    at /usr/src/debug/qpid-dispatch-0.4/src/router_node.c:2140
#5  0x00007f8f429fa438 in qd_router_send2 (qd=0x119f030, address=<optimized out>, msg=msg@entry=0x7f8f2000faa0)
    at /usr/src/debug/qpid-dispatch-0.4/src/router_node.c:2208
#6  0x00007f8f429f4425 in qd_python_send (self=<dispatch.IoAdapter at remote 0x7f8f36265ee0>, args=<optimized out>)
    at /usr/src/debug/qpid-dispatch-0.4/src/python_embedded.c:608
#7  0x00007f8f41e75b94 in call_function (oparg=<optimized out>, pp_stack=0x7f8f2f7fcc90)
    at /usr/src/debug/Python-2.7.5/Python/ceval.c:4098
#8  PyEval_EvalFrameEx (
    f=f@entry=Frame 0x7f8f240010b0, for file /usr/lib/qpid-dispatch/python/qpid_dispatch_internal/router/engine.py, line 234, in send (self=<RouterEngine(node_tracker=<NodeTracker(neighbor_max_age=3, next_maskbit=1, container=<...>, nodes_by_link_id={}, maskbits=[True, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, ...(truncated), 
    throwflag=throwflag@entry=0) at /usr/src/debug/Python-2.7.5/Python/ceval.c:2740
#9  0x00007f8f41e75950 in fast_function (nk=<optimized out>, na=3, n=3, pp_stack=0x7f8f2f7fcdf0, 
    func=<function at remote 0x7f8f42cb3848>) at /usr/src/debug/Python-2.7.5/Python/ceval.c:4184
#10 call_function (oparg=<optimized out>, pp_stack=0x7f8f2f7fcdf0) at /usr/src/debug/Python-2.7.5/Python/ceval.c:4119
#11 PyEval_EvalFrameEx (
    f=f@entry=Frame 0x7f8f24000ad0, for file /usr/lib/qpid-dispatch/python/qpid_dispatch_internal/router/hello.py, line 42, in tick (self=<HelloProtocol(container=<RouterEngine(node_tracker=<NodeTracker(neighbor_max_age=3, next_maskbit=1, container=<...>, nodes_by_link_id={}, maskbits=[True, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, N...(truncated), 
    throwflag=throwflag@entry=0) at /usr/src/debug/Python-2.7.5/Python/ceval.c:2740
#12 0x00007f8f41e75950 in fast_function (nk=<optimized out>, na=2, n=2, pp_stack=0x7f8f2f7fcf50, 
    func=<function at remote 0x7f8f42d1dde8>) at /usr/src/debug/Python-2.7.5/Python/ceval.c:4184
#13 call_function (oparg=<optimized out>, pp_stack=0x7f8f2f7fcf50) at /usr/src/debug/Python-2.7.5/Python/ceval.c:4119
#14 PyEval_EvalFrameEx (
    f=f@entry=Frame 0x7f8f240008e0, for file /usr/lib/qpid-dispatch/python/qpid_dispatch_internal/router/engine.py, line 121, in handleTimerTick (self=<RouterEngine(node_tracker=<NodeTracker(neighbor_max_age=3, next_maskbit=1, container=<...>, nodes_by_link_id={}, maskbits=[True, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, N...(truncated), 
    throwflag=throwflag@entry=0) at /usr/src/debug/Python-2.7.5/Python/ceval.c:2740
#15 0x00007f8f41e771ad in PyEval_EvalCodeEx (co=<optimized out>, globals=<optimized out>, locals=locals@entry=0x0, 
    args=args@entry=0x7f8f369ecf28, argcount=1, kws=kws@entry=0x0, kwcount=kwcount@entry=0, defs=defs@entry=0x0, 
    defcount=defcount@entry=0, closure=0x0) at /usr/src/debug/Python-2.7.5/Python/ceval.c:3330
#16 0x00007f8f41e04098 in function_call (func=<function at remote 0x7f8f42cb3488>, 
    arg=(<RouterEngine(node_tracker=<NodeTracker(neighbor_max_age=3, next_maskbit=1, container=<...>, nodes_by_link_id={}, maskbits=[True, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None,...(truncated), kw=0x0)
    at /usr/src/debug/Python-2.7.5/Objects/funcobject.c:526
#17 0x00007f8f41ddf073 in PyObject_Call (func=func@entry=<function at remote 0x7f8f42cb3488>, 
    arg=arg@entry=(<RouterEngine(node_tracker=<NodeTracker(neighbor_max_age=3, next_maskbit=1, container=<...>, nodes_by_link_id={}, maskbits=[True, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None,...(truncated), kw=kw@entry=0x0)
    at /usr/src/debug/Python-2.7.5/Objects/abstract.c:2529
#18 0x00007f8f41dee085 in instancemethod_call (func=<function at remote 0x7f8f42cb3488>, 
    arg=(<RouterEngine(node_tracker=<NodeTracker(neighbor_max_age=3, next_maskbit=1, container=<...>, nodes_by_link_id={}, maskbits=[True, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None,...(truncated), kw=0x0)
    at /usr/src/debug/Python-2.7.5/Objects/classobject.c:2602
#19 0x00007f8f41ddf073 in PyObject_Call (func=func@entry=<instancemethod at remote 0x7f8f369f0af0>, arg=arg@entry=(), 
    kw=<optimized out>) at /usr/src/debug/Python-2.7.5/Objects/abstract.c:2529
#20 0x00007f8f41e70ff7 in PyEval_CallObjectWithKeywords (func=<instancemethod at remote 0x7f8f369f0af0>, arg=arg@entry=(), 
    kw=kw@entry=0x0) at /usr/src/debug/Python-2.7.5/Python/ceval.c:3967
#21 0x00007f8f41ddf027 in PyObject_CallObject (o=<optimized out>, a=a@entry=()) at /usr/src/debug/Python-2.7.5/Objects/abstract.c:2517
#22 0x00007f8f429fb601 in qd_pyrouter_tick (router=router@entry=0x13d4030) at /usr/src/debug/qpid-dispatch-0.4/src/router_pynode.c:706
#23 0x00007f8f429f5ed9 in qd_router_timer_handler (context=0x13d4030) at /usr/src/debug/qpid-dispatch-0.4/src/router_node.c:1913
#24 0x00007f8f429fc337 in thread_run (arg=<optimized out>) at /usr/src/debug/qpid-dispatch-0.4/src/server.c:490
#25 0x00007f8f4256edf5 in start_thread (arg=0x7f8f2f7fe700) at pthread_create.c:308
#26 0x00007f8f41aca1ad in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 5 (Thread 0x7f8f2ffff700 (LWP 24222)):
#0  __lll_lock_wait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:135
#1  0x00007f8f42570d32 in _L_lock_791 () from /lib64/libpthread.so.0
#2  0x00007f8f42570c38 in __GI___pthread_mutex_lock (mutex=0x143cb20) at pthread_mutex_lock.c:64
#3  0x00007f8f429f3715 in sys_mutex_lock (mutex=<optimized out>) at /usr/src/debug/qpid-dispatch-0.4/src/posix/threading.c:62
#4  0x00007f8f429f8f2e in router_outgoing_link_handler (context=0x13d4030, link=0x7f8f1c034230)
    at /usr/src/debug/qpid-dispatch-0.4/src/router_node.c:1508
#5  0x00007f8f429ea1a0 in setup_outgoing_link (pn_link=0x7f8f1c032f50, container=0x13b8650)
    at /usr/src/debug/qpid-dispatch-0.4/src/container.c:144
#6  process_handler (unused=<optimized out>, qd_conn=0x7f8f20028ea0, container=0x13b8650)
    at /usr/src/debug/qpid-dispatch-0.4/src/container.c:385
#7  handler (handler_context=0x13b8650, conn_context=<optimized out>, event=event@entry=QD_CONN_EVENT_PROCESS, qd_conn=0x7f8f20028ea0)
    at /usr/src/debug/qpid-dispatch-0.4/src/container.c:496
#8  0x00007f8f429fc9ac in process_connector (cxtr=0x7f8f2001bfa0, qd_server=0x13dd5d0)
    at /usr/src/debug/qpid-dispatch-0.4/src/server.c:398
#9  thread_run (arg=<optimized out>) at /usr/src/debug/qpid-dispatch-0.4/src/server.c:626
#10 0x00007f8f4256edf5 in start_thread (arg=0x7f8f2ffff700) at pthread_create.c:308
#11 0x00007f8f41aca1ad in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 4 (Thread 0x7f8f34807700 (LWP 24221)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f8f429fc819 in thread_run (arg=<optimized out>) at /usr/src/debug/qpid-dispatch-0.4/src/server.c:508
#2  0x00007f8f4256edf5 in start_thread (arg=0x7f8f34807700) at pthread_create.c:308
#3  0x00007f8f41aca1ad in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 3 (Thread 0x7f8f35008700 (LWP 24220)):
#0  __lll_lock_wait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:135
#1  0x00007f8f42570d32 in _L_lock_791 () from /lib64/libpthread.so.0
#2  0x00007f8f42570c38 in __GI___pthread_mutex_lock (mutex=0x143cb20) at pthread_mutex_lock.c:64
#3  0x00007f8f429f3715 in sys_mutex_lock (mutex=<optimized out>) at /usr/src/debug/qpid-dispatch-0.4/src/posix/threading.c:62
#4  0x00007f8f429f6b50 in router_writable_link_handler (context=0x13d4030, link=0x7f8f3001bdd0)
    at /usr/src/debug/qpid-dispatch-0.4/src/router_node.c:460
#5  0x00007f8f429ea4d6 in do_writable (pn_link=0x7f8f3002d7c0) at /usr/src/debug/qpid-dispatch-0.4/src/container.c:215
#6  process_handler (unused=<optimized out>, qd_conn=<optimized out>, container=0x13b8650)
    at /usr/src/debug/qpid-dispatch-0.4/src/container.c:446
#7  handler (handler_context=0x13b8650, conn_context=<optimized out>, event=event@entry=QD_CONN_EVENT_PROCESS, 
    qd_conn=<optimized out>) at /usr/src/debug/qpid-dispatch-0.4/src/container.c:496
#8  0x00007f8f429fc9ac in process_connector (cxtr=0x7f8f1c012f30, qd_server=0x13dd5d0)
    at /usr/src/debug/qpid-dispatch-0.4/src/server.c:398
#9  thread_run (arg=<optimized out>) at /usr/src/debug/qpid-dispatch-0.4/src/server.c:626
#10 0x00007f8f4256edf5 in start_thread (arg=0x7f8f35008700) at pthread_create.c:308
#11 0x00007f8f41aca1ad in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 2 (Thread 0x7f8f35809700 (LWP 24219)):
#0  __lll_lock_wait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:135
#1  0x00007f8f42570d32 in _L_lock_791 () from /lib64/libpthread.so.0
#2  0x00007f8f42570c38 in __GI___pthread_mutex_lock (mutex=0x7f8f1c033b80) at pthread_mutex_lock.c:64
#3  0x00007f8f429f3715 in sys_mutex_lock (mutex=<optimized out>) at /usr/src/debug/qpid-dispatch-0.4/src/posix/threading.c:62
#4  0x00007f8f429fda0e in qd_connection_invoke_deferred (conn=conn@entry=0x7f8f1c0208a0, call=call@entry=
    0x7f8f429f8a00 <qd_router_open_routed_link>, context=0x7f8f2001d600) at /usr/src/debug/qpid-dispatch-0.4/src/server.c:1135
#5  0x00007f8f429f8943 in router_link_attach_handler (context=0x13d4030, link=<optimized out>)
    at /usr/src/debug/qpid-dispatch-0.4/src/router_node.c:1632
#6  0x00007f8f429ea395 in handle_link_open (container=<optimized out>, pn_link=0x7f8f1c043990)
    at /usr/src/debug/qpid-dispatch-0.4/src/container.c:201
#7  process_handler (unused=<optimized out>, qd_conn=0x7f8f3000cb10, container=0x13b8650)
    at /usr/src/debug/qpid-dispatch-0.4/src/container.c:389
#8  handler (handler_context=0x13b8650, conn_context=<optimized out>, event=event@entry=QD_CONN_EVENT_PROCESS, qd_conn=0x7f8f3000cb10)
    at /usr/src/debug/qpid-dispatch-0.4/src/container.c:496
#9  0x00007f8f429fc9ac in process_connector (cxtr=0x7f8f30010250, qd_server=0x13dd5d0)
    at /usr/src/debug/qpid-dispatch-0.4/src/server.c:398
#10 thread_run (arg=<optimized out>) at /usr/src/debug/qpid-dispatch-0.4/src/server.c:626
#11 0x00007f8f4256edf5 in start_thread (arg=0x7f8f35809700) at pthread_create.c:308
#12 0x00007f8f41aca1ad in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 1 (Thread 0x7f8f3600a700 (LWP 24218)):
#0  __lll_lock_wait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:135
#1  0x00007f8f42570d32 in _L_lock_791 () from /lib64/libpthread.so.0
#2  0x00007f8f42570c38 in __GI___pthread_mutex_lock (mutex=0x143cb20) at pthread_mutex_lock.c:64
#3  0x00007f8f429f3715 in sys_mutex_lock (mutex=<optimized out>) at /usr/src/debug/qpid-dispatch-0.4/src/posix/threading.c:62
#4  0x00007f8f429f8f2e in router_outgoing_link_handler (context=0x13d4030, link=0x7f8f280419a0)
    at /usr/src/debug/qpid-dispatch-0.4/src/router_node.c:1508
#5  0x00007f8f429ea1a0 in setup_outgoing_link (pn_link=0x7f8f28040380, container=0x13b8650)
    at /usr/src/debug/qpid-dispatch-0.4/src/container.c:144
#6  process_handler (unused=<optimized out>, qd_conn=0x7f8f20028dd0, container=0x13b8650)
    at /usr/src/debug/qpid-dispatch-0.4/src/container.c:385
#7  handler (handler_context=0x13b8650, conn_context=<optimized out>, event=event@entry=QD_CONN_EVENT_PROCESS, qd_conn=0x7f8f20028dd0)
    at /usr/src/debug/qpid-dispatch-0.4/src/container.c:496
#8  0x00007f8f429fc9ac in process_connector (cxtr=0x7f8f2001be10, qd_server=0x13dd5d0)
    at /usr/src/debug/qpid-dispatch-0.4/src/server.c:398
#9  thread_run (arg=<optimized out>) at /usr/src/debug/qpid-dispatch-0.4/src/server.c:626
#10 0x00007f8f4256edf5 in start_thread (arg=0x7f8f3600a700) at pthread_create.c:308
#11 0x00007f8f41aca1ad in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

deadlock in qdrouterd when link routing to just created destinations

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