StacktraceTop: __libc_free (mem=0x21) at malloc.c:3709 g_closure_unref (closure=0x4000000) at /build/buildd/glib2.0-2.28.3/./gobject/gclosure.c:595 signal_emit_unlocked_R (node=<value optimized out>, detail=0, instance=0x269d4f0, emission_return=0x0, instance_and_params=0x546c2a0) at /build/buildd/glib2.0-2.28.3/./gobject/gsignal.c:3252 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/glib2.0-2.28.3/./gobject/gsignal.c:2983 g_signal_emit (instance=<value optimized out>, signal_id=<value optimized out>, detail=<value optimized out>) at /build/buildd/glib2.0-2.28.3/./gobject/gsignal.c:3040
StacktraceTop: buildd/ glib2.0- 2.28.3/ ./gobject/ gclosure. c:595 emit_unlocked_ R (node=<value optimized out>, detail=0, instance=0x269d4f0, emission_ return= 0x0, instance_ and_params= 0x546c2a0) at /build/ buildd/ glib2.0- 2.28.3/ ./gobject/ gsignal. c:3252 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- 2.28.3/ ./gobject/ gsignal. c:2983 buildd/ glib2.0- 2.28.3/ ./gobject/ gsignal. c:3040
__libc_free (mem=0x21) at malloc.c:3709
g_closure_unref (closure=0x4000000) at /build/
signal_
g_signal_
g_signal_emit (instance=<value optimized out>, signal_id=<value optimized out>, detail=<value optimized out>) at /build/