g_assertion_message (domain=domain@entry=0xb39ec914 "GLib-GIO", file=file@entry=0xb3a10600 "/build/buildd/glib2.0-2.41.5/./gio/gdbusmessage.c", line=line@entry=2326, func=0x1 , func@entry=0xb3a0fd28 <__FUNCTION__.26275> "append_value_to_blob", message=, message@entry=0x2969370 "assertion failed: (g_utf8_validate (v, -1, &end) && (end == v + len))") at /build/buildd/glib2.0-2.41.5/./glib/gtestutils.c:2291 g_assertion_message_expr (domain=0xb39ec914 "GLib-GIO", file=0xb3a10600 "/build/buildd/glib2.0-2.41.5/./gio/gdbusmessage.c", line=line@entry=2326, func=0xb3a0fd28 <__FUNCTION__.26275> "append_value_to_blob", expr=0xb3a106cc "g_utf8_validate (v, -1, &end) && (end == v + len)") at /build/buildd/glib2.0-2.41.5/./glib/gtestutils.c:2306 append_value_to_blob (value=value@entry=0xb1302100, type=0xb5ddd806 , mbuf=0x2969370, mbuf@entry=0xbecc8e40, out_padding_added=0xb3a10600, out_padding_added@entry=0x0, error=error@entry=0x0) at /build/buildd/glib2.0-2.41.5/./gio/gdbusmessage.c:2326 append_body_to_blob (error=0x0, mbuf=0xbecc8e40, value=) at /build/buildd/glib2.0-2.41.5/./gio/gdbusmessage.c:2553 g_dbus_message_to_blob (message=message@entry=0x1f902c0, out_size=out_size@entry=0xbecc8f20, capabilities=, error=error@entry=0x0) at /build/buildd/glib2.0-2.41.5/./gio/gdbusmessage.c:2722