Bug 483

I am writting an application-level port of the Pastry DHT. The Application main class (properly registered as an NS3 object) has a pointer to a "Pinger" class that handles the distance metric functionality between the nodes. Upon initialization of the Pinger class, a Ptr to the node the application resides on (fetched by GetNode()) is passed to the pinger, and later on used as the "node" argument when creating a socket, inside the pinger, as follows:

Ptr<Socket> currentSocket = Socket::CreateSocket(m_node, TypeId::LookupByName ("ns3::UdpSocketFactory"));


However, upon execution, and when trying to request a socket from the node stack, a "Corrupted double-linked list" error pops up. The GDB backtrace is the following:

(gdb) backtrace
#0  0xb7f77410 in __kernel_vsyscall ()
#1  0xb74da085 in raise () from /lib/tls/i686/cmov/libc.so.6
#2  0xb74dba01 in abort () from /lib/tls/i686/cmov/libc.so.6
#3  0xb7512b7c in ?? () from /lib/tls/i686/cmov/libc.so.6
#4  0xb7519149 in ?? () from /lib/tls/i686/cmov/libc.so.6
#5  0xb751aedd in ?? () from /lib/tls/i686/cmov/libc.so.6
#6  0xb751ccad in malloc () from /lib/tls/i686/cmov/libc.so.6
#7  0xb76e7447 in operator new () from /usr/lib/libstdc++.so.6
#8  0xb7b83868 in __gnu_cxx::new_allocator<ns3::Ptr<ns3::Packet> >::allocate (this=0xbfc02020, __n=128) at /usr/include/c++/4.2/ext/new_allocator.h:91
#9  0xb7b838a5 in std::_Deque_base<ns3::Ptr<ns3::Packet>, std::allocator<ns3::Ptr<ns3::Packet> > >::_M_allocate_node (this=0xbfc02020)
    at /usr/include/c++/4.2/bits/stl_deque.h:430
#10 0xb7b83a72 in std::_Deque_base<ns3::Ptr<ns3::Packet>, std::allocator<ns3::Ptr<ns3::Packet> > >::_M_create_nodes (this=0xbfc02020, __nstart=0x8284404, 
    __nfinish=0x8284408) at /usr/include/c++/4.2/bits/stl_deque.h:526
#11 0xb7b83b8b in std::_Deque_base<ns3::Ptr<ns3::Packet>, std::allocator<ns3::Ptr<ns3::Packet> > >::_M_initialize_map (this=0xbfc02020, __num_elements=0)
    at /usr/include/c++/4.2/bits/stl_deque.h:500
#12 0xb7b83c8f in _Deque_base (this=0xbfc02020, __a=@0xbfc0204f, __num_elements=0) at /usr/include/c++/4.2/bits/stl_deque.h:385
#13 0xb7b83ce4 in deque (this=0xbfc02020, __a=@0xbfc0204f) at /usr/include/c++/4.2/bits/stl_deque.h:684
#14 0xb7c0f9d6 in UdpSocketImpl (this=0x82873e8) at ../src/internet-stack/udp-socket-impl.cc:64
#15 0xb7bdbd2b in ns3::CreateObject<ns3::UdpSocketImpl> (attributes=@0xbfc020cc) at debug/ns3/object.h:398
#16 0xb7bdc3eb in ns3::CreateObject<ns3::UdpSocketImpl> (n1=@0xbfc021e8, v1=@0xbfc021b8, n2=@0xbfc021e4, v2=@0xbfc021b0, n3=@0xbfc021e0, v3=@0xbfc021a8, 
    n4=@0xbfc021dc, v4=@0xbfc021a0, n5=@0xbfc021d8, v5=@0xbfc02198, n6=@0xbfc021d4, v6=@0xbfc02190, n7=@0xbfc021d0, v7=@0xbfc02188, n8=@0xbfc021cc, 
    v8=@0xbfc02180, n9=@0xbfc021c8, v9=@0xbfc02178) at debug/ns3/object.h:463
#17 0xb7bda2bb in ns3::UdpL4Protocol::CreateSocket (this=0x806ee68) at ../src/internet-stack/udp-l4-protocol.cc:99
#18 0xb7c380e3 in ns3::UdpSocketFactoryImpl::CreateSocket (this=0x806eea8) at ../src/internet-stack/udp-socket-factory-impl.cc:44
#19 0xb7b8c4a1 in ns3::Socket::CreateSocket (node=@0xbfc0234c, tid=@0xbfc02360) at ../src/node/socket.cc:49
#20 0xb7ca5669 in ns3::NS3PastryNodePinger::MeasureDistance (this=0x807da00, handleIn=@0x828a2e0)
    at ../src/applications/NS3PastryNode/NS3PastryNodePinger.cc:43
#21 0xb7ca9b00 in ns3::NS3PastryNode::PingAllNodes (this=0x807a188) at ../src/applications/NS3PastryNode/NS3PastryNode.cc:364
#22 0xb7ca9832 in Notify (this=0x808e468) at debug/ns3/make-event.h:88
#23 0xb7acee62 in ns3::EventImpl::Invoke (this=0x808e468) at ../src/simulator/event-impl.cc:39
#24 0xb7ae94cd in ns3::DefaultSimulatorImpl::ProcessOneEvent (this=0x8067c20) at ../src/simulator/default-simulator-impl.cc:120
#25 0xb7ae9523 in ns3::DefaultSimulatorImpl::Run (this=0x8067c20) at ../src/simulator/default-simulator-impl.cc:150
#26 0xb7ad7bf3 in ns3::Simulator::Run () at ../src/simulator/simulator.cc:151
#27 0x0804e310 in RunSimulation () at ../scratch/PastryTesting.cc:274
#28 0x0804e4d2 in main () at ../scratch/PastryTesting.cc:286

If there is any other info required, feel free to contact me!