ah thanks, i just did it
then saw your message
(gdb) bt
#0 0x00000000 in ?? ()
#1 0xb744fa82 in ?? () from /lib/i386-linux-gnu/libdbus-1.so.3
#2 0xb745457f in dbus_message_iter_recurse ()
from /lib/i386-linux-gnu/libdbus-1.so.3
#3 0x0834f35f in GetVariant(DBusMessage*, int, void const*) ()
#4 0x083512f7 in guMPRIS2::HandleMessages(guDBusMessage*, guDBusMessage*) ()
#5 0x0834a5f6 in guDBusServer::HandleMessages(guDBusMessage*, guDBusMessage*)
()
#6 0x0834b3c9 in Handle_Messages(DBusConnection*, DBusMessage*, void*) ()
#7 0xb74493ab in dbus_connection_dispatch ()
from /lib/i386-linux-gnu/libdbus-1.so.3
#8 0xb74496ed in ?? () from /lib/i386-linux-gnu/libdbus-1.so.3
#9 0x0834a536 in guDBusThread::Entry() ()
#10 0xb7f55330 in wxThreadInternal::PthreadStart(wxThread*) ()
from /usr/lib/libwx_baseu-2.8.so.0
#11 0xb7f5539d in wxPthreadStart () from /usr/lib/libwx_baseu-2.8.so.0
#12 0xb7427e99 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#13 0xb70d773e in clone () from /lib/i386-linux-gnu/libc.so.6
(gdb)