(gdb) bt full
#0  0x00000000 in ?? ()
No symbol table info available.
#1  0xb7c6e8e7 in wxTimerBase::Notify (this=0x8d1f520) at timercmn.cpp:61
        event = {<wxEvent> = {<wxObject> = {_vptr.wxObject = 0x841ba50, static ms_classInfo = {m_className = 0xb794b880, m_objectSize = 8,
        m_objectConstructor = 0, m_baseInfo1 = 0x0, m_baseInfo2 = 0x0, static sm_first = 0x841d03c, m_next = 0xb79aec6c,
        static sm_classTable = 0x860a050}, m_refData = 0x0}, m_eventObject = 0x8d1f520, m_eventType = 10085, m_timeStamp = 0, m_id = 6130,
    m_callbackUserData = 0x0, m_propagationLevel = 0, m_skipped = false, m_isCommandEvent = false, static ms_classInfo = {
      m_className = 0xb79607a0, m_objectSize = 36, m_objectConstructor = 0, m_baseInfo1 = 0xb79aec30, m_baseInfo2 = 0x0,
      static sm_first = 0x841d03c, m_next = 0xb79aef98, static sm_classTable = 0x860a050}}, m_interval = 100, static ms_classInfo = {
    m_className = 0xb7cfed60, m_objectSize = 40, m_objectConstructor = 0xb7c6e6ee <wxTimerEvent::wxCreateObject()>,
    m_baseInfo1 = 0xb79aefb0, m_baseInfo2 = 0x0, static sm_first = 0x841d03c, m_next = 0xb7d952e8, static sm_classTable = 0x860a050}}
#2  0xb7b5a5ca in timeout_callback (data=0x8d1f520) at timer.cpp:48
        timer = (wxTimer *) 0x8d1f520
#3  0xb6ff7d5f in g_main_context_wakeup () from /usr/lib/libglib-2.0.so.0
No symbol table info available.
#4  0x08d1f520 in ?? ()
No symbol table info available.
#5  0x08639a04 in ?? ()
No symbol table info available.
#6  0x00000001 in ?? ()
No symbol table info available.
#7  0x0869abd0 in ?? ()
No symbol table info available.
#8  0xb70508c0 in g_idle_funcs () from /usr/lib/libglib-2.0.so.0
No symbol table info available.
#9  0x00000002 in ?? ()
No symbol table info available.
#10 0xb70505c0 in ?? () from /usr/lib/libglib-2.0.so.0
No symbol table info available.
#11 0x0869abd0 in ?? ()
No symbol table info available.
#12 0xb70508c0 in g_idle_funcs () from /usr/lib/libglib-2.0.so.0
No symbol table info available.
#13 0xb6ff57aa in g_main_depth () from /usr/lib/libglib-2.0.so.0
No symbol table info available.
#14 0x0869abd0 in ?? ()
No symbol table info available.
#15 0xb7b5a57a in wxTimer::GetClassInfo (this=0x80d8b65) at timer.cpp:28
No locals.