gdb에서 나온 걸 결과를 토대로 해봣는데 어디가 문제인지 잘 모르겠네요...

#0  0xb7edc408 in std::__default_alloc_template<true, 0>::allocate () from /usr/lib/libstdc++.so.5
#1  0x0805cab8 in std::__simple_alloc<std::_Rb_tree_node<std::pair<std::string const, GamePlayer*> >, std::__default_alloc_template<true, 0> >::allocate (__n=1)
    at /usr/include/c++/3.3.5/bits/stl_alloc.h:232
#2  0x0805ca86 in std::_Rb_tree_alloc_base<std::pair<std::string const, GamePlayer*>, std::allocator<std::pair<std::string const, GamePlayer*> >, true>::_M_get_node (this=0x8075344)
    at /usr/include/c++/3.3.5/bits/stl_tree.h:564
#3  0x0805da34 in std::_Rb_tree<std::string, std::pair<std::string const, GamePlayer*>, std::_Select1st<std::pair<std::string const, GamePlayer*> >, std::less<std::string>, std::allocator<std::pair<std::string const, GamePlayer*> > >::_M_create_node (this=0x8075344, __x=@0xb72298d0)
    at /usr/include/c++/3.3.5/bits/stl_tree.h:616
#4  0x0805d85e in std::_Rb_tree<std::string, std::pair<std::string const, GamePlayer*>, std::_Select1st<std::pair<std::string const, GamePlayer*> >, std::less<std::string>, std::allocator<std::pair<std::string const, GamePlayer*> > >::_M_insert (this=0x8075344, __x_=0x0, __y_=0x808bc00,
    __v=@0xb72298d0) at /usr/include/c++/3.3.5/bits/stl_tree.h:998
#5  0x0805ce43 in std::_Rb_tree<std::string, std::pair<std::string const, GamePlayer*>, std::_Select1st<std::pair<std::string const, GamePlayer*> >, std::less<std::string>, std::allocator<std::pair<std::string const, GamePlayer*> > >::insert_unique (this=0x8075344, __position=
        {<std::_Rb_tree_base_iterator> = {_M_node = 0x8076148}, <No data fields>},
    __v=@0xb72298d0) at /usr/include/c++/3.3.5/bits/stl_tree.h:1077
#6  0x0805c6a3 in std::map<std::string, GamePlayer*, std::less<std::string>, std::allocator<std::pair<std::string const, GamePlayer*> > >::insert (this=0x8075344, position=Cannot access memory at address 0x0
)
    at /usr/include/c++/3.3.5/bits/stl_map.h:364
#7  0x0805c5c9 in std::map<std::string, GamePlayer*, std::less<std::string>, std::allocator<std::pair<std::string const, GamePlayer*> > >::operator[] (this=0x8075344, __k=@0xb72299f0)
    at /usr/include/c++/3.3.5/bits/stl_map.h:319
---Type <return> to continue, or q <return> to quit---
#8  0x0805b7d7 in PlayerControler::Login (this=0xb7229b20, forMap=
        {static npos = 4294967295, _M_dataplus = {<std::allocator<char>> = {<No data fields>}, _M_p = 0x8076cbc "?\t\b훝\a\b0\034\t\b\b"}, static _S_empty_rep_storage = {0, 0, 20, 0}},
    gameServerID=4294967295, account=0xb7229ab0 "\203W\203F\203h\203X", ip=0xb7229af0 "d11e814b",
    charname=0xb7229ad0 "\b\203W\203F\203h\203X") at ../user.cpp:163
#9  0x0805baf8 in PlayerControler::Announce (this=0xb7229b20, forMap=
        {static npos = 4294967295, _M_dataplus = {<std::allocator<char>> = {<No data fields>}, _M_p = 0x8076cbc "?\t\b훝\a\b0\034\t\b\b"}, static _S_empty_rep_storage = {0, 0, 20, 0}},
    gameServerID=4294967295, account=0xb7229ab0 "\203W\203F\203h\203X", ip=0xb7229af0 "d11e814b",
    charname=0xb7229ad0 "\b\203W\203F\203h\203X") at ../user.cpp:251
#10 0x080516ba in NoticeListener::Run (this=0x806e3e0) at ../NoticeListener.cpp:226
#11 0x08051d5e in _BaseThreadProc_ (lpParameter=0x806e3e0) at ../base_thread.cpp:7
#12 0xb7e1e112 in start_thread () from /lib/libpthread.so.0
#13 0xb7d832ee in clone () from /lib/libc.so.6

void PlayerControler::Login
(std::string forMap, dword gameServerID, const char* account, const char* ip, const char* charname)
{
	isOnline = true;
 
	std::map<std::string, GamePlayer*>::iterator it = m_acctMap.find(account);
 
	if (it != m_acctMap.end())
	{
		GamePlayer* player;
		player = it->second;
	}	
 
	else
	{
		// 새로운 유저일  경우
		this->m_mutex.Lock();
 
		GamePlayer* player = new GamePlayer();
 
		m_acctMap[account] = player;
		player->m_account = account;
		player->m_charname = charname;
 
		//player->m_mutex.Lock();
		this->m_mutex.Unlock();
 
		isOnline = false;
 
		player->LineOn(forMap, gameServerID, ip);
		m_map[forMap] = player;				
	}
 
	if (!isOnline)
	{
		std::map<std::string, GamePlayer*>::iterator that = m_map.find(forMap);
 
		if (that == m_map.end())
		{
			isOnline = true;
		}
		else
		{
			isOnline = false;
		}
	}
 
	if (isOnline)
	{
		Logout(forMap);
	}		
	m_playerCount += 1;
}