StacktraceTop: _int_free (av=0x7faa8c00001f, p=0x7faa8c612470) at malloc.c:4892 __libc_free (mem=<value optimized out>) at malloc.c:3738 g_value_unset (value=0x3651718) at /build/buildd/glib2.0-2.28.4/./gobject/gvalue.c:275 g_signal_emit_valist (instance=<value optimized out>, signal_id=<value optimized out>, detail=<value optimized out>, var_args=<value optimized out>) at /build/buildd/glib2.0-2.28.4/./gobject/gsignal.c:3012 g_signal_emit (instance=<value optimized out>, signal_id=<value optimized out>, detail=<value optimized out>) at /build/buildd/glib2.0-2.28.4/./gobject/gsignal.c:3040
StacktraceTop: buildd/ glib2.0- 2.28.4/ ./gobject/ gvalue. c:275 emit_valist (instance=<value optimized out>, signal_id=<value optimized out>, detail=<value optimized out>, var_args=<value optimized out>) at /build/ buildd/ glib2.0- 2.28.4/ ./gobject/ gsignal. c:3012 buildd/ glib2.0- 2.28.4/ ./gobject/ gsignal. c:3040
_int_free (av=0x7faa8c00001f, p=0x7faa8c612470) at malloc.c:4892
__libc_free (mem=<value optimized out>) at malloc.c:3738
g_value_unset (value=0x3651718) at /build/
g_signal_
g_signal_emit (instance=<value optimized out>, signal_id=<value optimized out>, detail=<value optimized out>) at /build/