core dump during std::_List_node_base::unhook()

Posted by Ron on Stack Overflow See other posts from Stack Overflow or by Ron
Published on 2010-06-12T03:44:15Z Indexed on 2010/06/12 3:52 UTC
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stdlist

I have a program where std::list is used. The program uses threads which act on the std::list as producers and consumers.

When a message is dealt with by the consumer, it is removed from the list using pop_front(). But, during pop_front, there is a core dump.

The gdb trace is as below. could you help getting me some insights into this issue?

(gdb) bt full

0 0xf7531d7b in std::_List_node_base::unhook () from /usr/lib/libstdc++.so.6

No symbol table info available.

1 0x0805c600 in std::list >::_M_erase (this=0x806b08c,

__position={_M_node = 0x8075308})
at /opt/target/usr/include/c++/4.2.0/bits/stl_list.h:1169
    __n = (class std::_List_node<myMsg> *) 0x0

2 0x0805c6af in std::list >::pop_front (this=0x806b08c)

at /opt/target/usr/include/c++/4.2.0/bits/stl_list.h:750

No locals.

3 0x0805afb6 in Base::run () at ../../src/Base.cc:342

    nSentBytes = 130
    tmpnm = {_vptr.myMsg = 0x80652c0,

m_msg = 0x8075140 "{0130,MSG_TYPE=ND_FUNCTION,ORG_PNAME=P01vm01Ax,FUNCTION=LOG,PARAM_CNT=3,DATETIME=06/12/2010 02:59:26.187,LOGNAME=N,ENTRY=Debug 0 }", m_from = 0x8096ee0 "P01vm01Ax", m_to = 0x0, static m_logged = false, static m_pLogMutex = {_data = {_lock = 0, __count = 0, __owner = 0, __kind = 0, _nusers = 0, {_spins = 0, _list = {_next = 0x0}}}, __size = '\0' , __align = 0}} newMsg = {_vptr.myMsg = 0x80652c0, m_msg = 0x0, m_from = 0x0, m_to = 0x0, static m_logged = false, static m_pLogMutex = {_data = {_lock = 0, __count = 0, __owner = 0, __kind = 0, _nusers = 0, {_spins = 0, _list = {_next = 0x0}}}, __size = '\0' , __align = 0}} strBuffer = "{0440,MSG_TYPE=NG_FUNCTION,ORG_PNAME=mach01./opt/abc/VAvsk/abc/comp/DML/gendrs.pl.17560,DST_PNAME=P01vm01Ax,FUNCTION=DRS_REPLICATE,CAUSE_DML_ERROR=N,CORRUPT_DATA=N,CORRUPT_HEADER=N,DEBUG=Y,EXTENDED_RU"... fds = {{fd = 5, events = 1, revents = 0}} retval = 0 iWaitTime = 0

4 0x0805b277 in startRun () at ../../src/Base.cc:454

No locals.

5 0xf7effe7b in start_thread () from /lib/libpthread.so.0

No symbol table info available.

6 0xf744d82e in clone () from /lib/libc.so.6

No symbol table info available.

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