#0  0xb7a303d5 in std::string::append ()
   from /usr/lib/gcc/i686-pc-linux-gnu/3.4.5/libstdc++.so.6
(gdb) bt
#0  0xb7a303d5 in std::string::append ()
   from /usr/lib/gcc/i686-pc-linux-gnu/3.4.5/libstdc++.so.6
#1  0x08056db7 in std::operator+<char, std::char_traits<char>, std::allocator<char> > (__lhs=@0x8933210, __rhs=@0x8933224) at basic_string.h:2008
#2  0x08164722 in MainWindow::updateTransfer_gui (this=0x89999f0, 
    type=MainWindow::CONNECTION_WAITING, item=0x8778660, status=
        {static npos = 4294967295, _M_dataplus = {<std::allocator<char>> = {<__gnu_cxx::new_allocator<char>> = {<No data fields>}, <No data fields>}, _M_p = 0x8c3b21c "Download finished, idle..."}}, time=
        {static npos = 4294967295, _M_dataplus = {<std::allocator<char>> = {<__gnu_cxx::new_allocator<char>> = {<No data fields>}, <No data fields>}, _M_p = 0x8c3b4bc "Done"}}, speed=-1, file=
        {static npos = 4294967295, _M_dataplus = {<std::allocator<char>> = {<__gnu_cxx::new_allocator<char>> = {<No data fields>}, <No data fields>}, _M_p = 0xb7a75bcc ""}}, size=-1, path=
        {static npos = 4294967295, _M_dataplus = {<std::allocator<char>> = {<__gnu_cxx::new_allocator<char>> = {<No data fields>}, <No data fields>}, _M_p = 0xb7a75bcc ""}}, progress=100) at linux/mainwindow.cc:939
#3  0x0816da56 in Func9<MainWindow, MainWindow::connection_t, ConnectionQueueItem*, std::string, std::string, long long, std::string, long long, std::string, int>::call (this=0x8c3c0d0) at func.hh:329
#4  0x08153e5f in WulforManager::processGuiQueue (this=0x8999818)
    at linux/wulformanager.cc:58
---Type <return> to continue, or q <return> to quit---
#5  0x08153dc9 in WulforManager::threadFunc_gui (data=0x8999818)
    at linux/wulformanager.cc:32
#6  0xb7f9a512 in start_thread () from /lib/libpthread.so.0
#7  0xb79224be in clone () from /lib/libc.so.6