(gdb) backtrace
#0  0x00007f03923abd70 in QMetaObject::indexOfClassInfo(char const*) const () from /usr/lib/libQt5Core.so.5
#1  0x00007f039bec40a8 in XmlSerializer::GetContentName(QString const&, QMetaObject const*, QMetaProperty const*) () from /usr/lib/libmythupnp-0.28.so.0
#2  0x00007f039bec3624 in XmlSerializer::AddProperty(QString const&, QVariant const&, QMetaObject const*, QMetaProperty const*) () from /usr/lib/libmythupnp-0.28.so.0
#3  0x00007f039bec2935 in Serializer::Serialize(QVariant const&, QString const&) () from /usr/lib/libmythupnp-0.28.so.0
#4  0x00007f039be9f96f in ServiceHost::FormatResponse(HTTPRequest*, QVariant) () from /usr/lib/libmythupnp-0.28.so.0
#5  0x00007f039be9ed1f in ServiceHost::ProcessRequest(HTTPRequest*) () from /usr/lib/libmythupnp-0.28.so.0
#6  0x00007f039be53e4d in HttpServer::DelegateRequest(HTTPRequest*) () from /usr/lib/libmythupnp-0.28.so.0
#7  0x00007f039be55077 in ?? () from /usr/lib/libmythupnp-0.28.so.0
#8  0x00007f039ba313f8 in ?? () from /usr/lib/libmythbase-0.28.so.0
#9  0x00007f039ba2ddcd in ?? () from /usr/lib/libmythbase-0.28.so.0
#10 0x00007f03921cc1d8 in ?? () from /usr/lib/libQt5Core.so.5
#11 0x00007f03946ec474 in start_thread () from /usr/lib/libpthread.so.0
#12 0x00007f03915c669d in clone () from /usr/lib/libc.so.6