(gdb) bt full
#0  0xb6c32cb7 in pthread_mutex_lock () from /lib/i386-linux-gnu/libpthread.so.0
No symbol table info available.
#1  0xb6d41864 in pthread_mutex_lock () from /lib/i386-linux-gnu/libc.so.6
No symbol table info available.
#2  0xb76c90fe in lock (this=0x2ec) at /home/xbmc/dev/xbmc/xbmc/threads/platform/pthreads/CriticalSection.h:49
No locals.
#3  lock (this=0x2ec) at /home/xbmc/dev/xbmc/xbmc/threads/Lockables.h:59
No locals.
#4  UniqueLock (this=0xb30ff1e4, lockable=...) at /home/xbmc/dev/xbmc/xbmc/threads/Lockables.h:116
No locals.
#5  CSingleLock (cs=..., this=0xb30ff1e4) at /home/xbmc/dev/xbmc/xbmc/threads/SingleLock.h:37
No locals.
#6  CGUIDialogExtendedProgressBar::GetHandle (this=0x0, strTitle=...) at GUIDialogExtendedProgressBar.cpp:75
        lock = {<XbmcThreads::UniqueLock<CCriticalSection>> = {<XbmcThreads::NonCopyable> = {<No data fields>}, mutex = @0x2ec, owns = true}, <No data fields>}
        handle = 0xb3100610
#7  0xb7419abc in VIDEO::CVideoInfoScanner::Process (this=0x808abe8) at VideoInfoScanner.cpp:89
        dialog = 0x0
        msg = {_vptr.CGUIMessage = 0x808d090, m_strLabel = {static npos = <optimized out>, _M_dataplus = {<std::allocator<char>> = {<__gnu_cxx::new_allocator<char>> = {<No data fields>}, <No data fields>},
              _M_p = 0xb6eed950 ""}}, m_params = {<std::_Vector_base<CStdStr<char>, std::allocator<CStdStr<char> > >> = {
              _M_impl = {<std::allocator<CStdStr<char> >> = {<__gnu_cxx::new_allocator<CStdStr<char> >> = {<No data fields>}, <No data fields>}, _M_start = 0xb6c33c39, _M_finish = 0x0,
                _M_end_of_storage = 0xb3105460}}, <No data fields>}, m_senderID = -1222001527, m_controlID = -1226919948, m_message = -1226919948, m_pointer = 0x808ad54, m_param1 = -1225860784, m_param2 = -1227614044,
          m_item = {px = 0x808acfc, pn = {pi_ = 0xb7cabfc4}}, static empty_string = {<std::basic_string<char, std::char_traits<char>, std::allocator<char> >> = {static npos = <optimized out>,
              _M_dataplus = {<std::allocator<char>> = {<__gnu_cxx::new_allocator<char>> = {<No data fields>}, <No data fields>}, _M_p = 0xb6eed95c ""}}, <No data fields>}}
#8  0xb7c9762e in CThread::Action (this=0x808abe8) at Thread.cpp:218
        __FUNCTION__ = "Action"
#9  0xb7c978f6 in CThread::staticThread (data=0x808abe8) at Thread.cpp:128
        autodelete = false
        __FUNCTION__ = "staticThread"
        pThread = 0x808abe8
        name = {static npos = <optimized out>, _M_dataplus = {<std::allocator<char>> = {<__gnu_cxx::new_allocator<char>> = {<No data fields>}, <No data fields>}, _M_p = 0x808ae74 "CVideoInfoScanner"}}
        id = 3004169024
        lock = {<XbmcThreads::UniqueLock<CCriticalSection>> = {<XbmcThreads::NonCopyable> = {<No data fields>}, mutex = @0x0, owns = false}, <No data fields>}
#10 0xb6c30d4c in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
No symbol table info available.
#11 0xb6d33d3e in clone () from /lib/i386-linux-gnu/libc.so.6
No symbol table info available.