#0  _M_lower_bound (this=0x7f5f301664e0, __k=@0x7f5fce776b40: 1632944, __y=<optimized out>, __x=0x100500000003b)
    at /usr/include/c++/4.8/bits/stl_tree.h:1157
1157            if (!_M_impl._M_key_compare(_S_key(__x), __k))
(gdb) bt full
#0  _M_lower_bound (this=0x7f5f301664e0, __k=@0x7f5fce776b40: 1632944, __y=<optimized out>, __x=0x100500000003b)
    at /usr/include/c++/4.8/bits/stl_tree.h:1157
No locals.
#1  std::_Rb_tree<unsigned long, std::pair<unsigned long const, Channel::PlayerInfo>, std::_Select1st<std::pair<unsigned long const, Channel::PlayerInfo> >, std::less<unsigned long>, std::allocator<std::pair<unsigned long const, Channel::PlayerInfo> > >::find (this=0x7f5f301664e0, __k=@0x7f5fce776b40: 1632944) at /usr/include/c++/4.8/bits/stl_tree.h:1805
        __j = <optimized out>
#2  0x0000000001096926 in find (__x=@0x7f5fce776b40: 1632944, this=<optimized out>)
    at /usr/include/c++/4.8/bits/stl_map.h:837
No locals.
#3  IsOn (who=1632944, this=<optimized out>) at /server/wow/source/icc/src/server/game/Chat/Channels/Channel.h:244
No locals.
#4  Channel::LeaveChannel (this=this@entry=0x7f5f301664b8, player=player@entry=0x7f5e3afe3940, send=send@entry=false)
    at /server/wow/source/icc/src/server/game/Chat/Channels/Channel.cpp:303
        guid = 1632944
#5  0x0000000000c4b751 in Player::CleanupChannels (this=0x7f5e3afe3940)
    at /server/wow/source/icc/src/server/game/Entities/Player/Player.cpp:5928
        ch = 0x7f5f301664b8
#6  0x0000000000eeb50f in WorldSession::LogoutPlayer (this=this@entry=0x7f5f755b8180, Save=Save@entry=true)
    at /server/wow/source/icc/src/server/game/Server/WorldSession.cpp:656
        data = {<ByteBuffer> = {static DEFAULT_SIZE = 4096, _rpos = 101, _wpos = 140047967551872,
            _storage = std::vector of length -6769161088, capacity -1489069616 = {0 '\000', 0 '\000', 0 '\000',
              0 '\000', 0 '\000', 0 '\000', 0 '\000', 0 '\000', 5 '\005', 0 '\000', 0 '\000', 0 '\000', 0 '\000',
              0 '\000', 0 '\000', 0 '\000', 160 '\240', 115 's', 33 '!', 65 'A', 94 '^', 127 '\177', 0 '\000',
              0 '\000', 165 '\245', 115 's', 33 '!', 65 'A', 94 '^', 127 '\177', 0 '\000', 0 '\000', 165 '\245',
              115 's', 33 '!', 65 'A', 94 '^', 127 '\177', 0 '\000', 0 '\000', 76 'L', 0 '\000', 91 '[', 117 'u',
              95 '_', 127 '\177', 0 '\000', 0 '\000', 128 '\200', 129 '\201', 91 '[', 117 'u', 95 '_', 127 '\177',
              0 '\000', 0 '\000', 200 '\310', 131 '\203', 91 '[', 117 'u', 95 '_', 127 '\177', 0 '\000', 0 '\000',
              24 '\030', 33 '!', 36 '$', 2 '\002', 0 '\000', 0 '\000', 0 '\000', 0 '\000', 174 '\256', 197 '\305',
              238 '\356', 0 '\000', 0 '\000', 0 '\000', 0 '\000', 0 '\000', 112 'p', 157 '\235', 37 '%', 2 '\002',
              0 '\000', 0 '\000', 0 '\000', 0 '\000', 48 '0', 35 '#', 176 '\260', 117 'u', 95 '_', 127 '\177',
              0 '\000', 0 '\000', 0 '\000', 0 '\000', 0 '\000', 0 '\000', 0 '\000', 0 '\000', 0 '\000', 0 '\000',
              192 '\300', 109 'm', 119 'w', 206 '\316', 95 '_', 127 '\177', 0 '\000', 0 '\000', 0 '\000', 206 '\316',
              1 '\001', 0 '\000', 62 '>', 0 '\000', 0 '\000', 0 '\000', 160 '\240', 115 's', 33 '!', 65 'A', 94 '^',
              127 '\177', 0 '\000', 0 '\000', 244 '\364', 98 'b', 90 'Z', 0 '\000', 0 '\000', 0 '\000', 0 '\000',
              0 '\000', 158 '\236', 146 '\222', 112 'p', 20 '\024', 112 'p', 7 '\a', 250 '\372', 2 '\002', 101 'e',
              0 '\000', 0 '\000', 0 '\000', 0 '\000', 0 '\000', 0 '\000', 0 '\000', 66 'B', 113 'q', 249 '\371',
              0 '\000', 0 '\000', 0 '\000', 0 '\000', 0 '\000', 144 '\220', 75 'K', 41 ')', 103 'g', 0 '\000',
              0 '\000', 0 '\000', 0 '\000', 128 '\200', 129 '\201', 91 '[', 117 'u', 95 '_', 127 '\177', 0 '\000',
---Type <return> to continue, or q <return> to quit---
              0 '\000', 248 '\370', 111 'o', 21 '\025', 4 '\004', 0 '\000', 0 '\000', 0 '\000', 0 '\000', 80 'P',
              249 '\371', 85 'U', 62 '>', 95 '_', 127 '\177', 0 '\000', 0 '\000', 208 '\320', 182 '\266', 224 '\340',
              98 'b', 94 '^', 127 '\177', 0 '\000', 0 '\000'...}}, m_opcode = 375}
#7  0x0000000000e171e5 in WorldSession::HandleLogoutRequestOpcode (this=0x7f5f755b8180)
    at /server/wow/source/icc/src/server/game/Handlers/MiscHandler.cpp:396
        data = {<ByteBuffer> = {static DEFAULT_SIZE = 4096, _rpos = 0, _wpos = 5,
            _storage = std::vector of length 5, capacity 5 = {0 '\000', 0 '\000', 0 '\000', 0 '\000', 1 '\001'}},
          m_opcode = 76}
        reason = 0 '\000'
        data = {<ByteBuffer> = {static DEFAULT_SIZE = 4096, _rpos = 0, _wpos = 5,
            _storage = std::vector of length 5, capacity 5 = {0 '\000', 0 '\000', 0 '\000', 0 '\000', 1 '\001'}},
          m_opcode = 76}
#8  0x0000000000eec5ae in WorldSession::Update (this=0x7f5f755b8180, diff=62, updater=...)
    at /server/wow/source/icc/src/server/game/Server/WorldSession.cpp:409
        opHandle = @0x2242118: {name = 0x1ac36bb "CMSG_LOGOUT_REQUEST", status = STATUS_LOGGEDIN,
          packetProcessing = PROCESS_THREADUNSAFE, handler = (void (WorldSession::*)(WorldSession * const,
    WorldPacket &)) 0xe16fd0 <WorldSession::HandleLogoutRequestOpcode(WorldPacket&)>, needToRedirect = true}
        localDiff = 49940336
        packet = 0x7f5f75b60690
        deletePacket = true
        firstDelayedPacket = 0x0
#9  0x0000000000fbad66 in World::UpdateSessions (this=this@entry=0x4156ff8, diff=diff@entry=62)
    at /server/wow/source/icc/src/server/game/World/World.cpp:3305
        updater = {<PacketFilter> = {_vptr.PacketFilter = 0x1a76570 <vtable for WorldSessionFilter+16>,
            m_pSession = 0x7f5f755b8180}, <No data fields>}
        itr = {<std::__detail::_Node_iterator_base<std::pair<unsigned int const, std::shared_ptr<WorldSession> >, false>> = {_M_cur = 0x7f5f3e55f950}, <No data fields>}
        next = {<std::__detail::_Node_iterator_base<std::pair<unsigned int const, std::shared_ptr<WorldSession> >, false>> = {_M_cur = 0x7f5e62e0b6d0}, <No data fields>}
        sess = std::shared_ptr (empty) 0x0
        __PRETTY_FUNCTION__ = "void World::UpdateSessions(uint32)"
#10 0x0000000000fc34a5 in World::Update (this=0x4156ff8, diff=diff@entry=62)
    at /server/wow/source/icc/src/server/game/World/World.cpp:2469
No locals.
#11 0x0000000000ae616d in WorldRunnable::run (this=<optimized out>)
    at /server/wow/source/icc/src/server/worldserver/WorldThread/WorldRunnable.cpp:51
        realCurrTime = <optimized out>
        realPrevTime = 49940235
        prevSleepTime = 24
---Type <return> to continue, or q <return> to quit---
#12 0x0000000001282b7a in ACE_Based::Thread::ThreadTask (param=0x52ad2670)
    at /server/wow/source/icc/src/server/shared/Threading/Threading.cpp:186
        _task = 0x52ad2670
#13 0x00007f5fe70f3376 in ACE_OS_Thread_Adapter::invoke() () from /usr/lib/libACE-6.2.8.so
No symbol table info available.
#14 0x00007f5fe55eb064 in start_thread (arg=0x7f5fce777700) at pthread_create.c:309
        __res = <optimized out>
        pd = 0x7f5fce777700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140049462556416, -5821555960977423862, 1, 140049887060064,
                1651168432, 140049462556416, 5875562936476500490, 5875621981901554186}, mask_was_saved = 0}}, priv = {
            pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#15 0x00007f5fe532062d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111
No locals.