Comment 2 for bug 1371961

StacktraceTop:
 __libc_message (do_abort=do_abort@entry=1, fmt=fmt@entry=0x7f05c2f68a40 "*** Error in `%s': %s: 0x%s ***\n") at ../sysdeps/posix/libc_fatal.c:175
 malloc_printerr (ptr=<optimized out>, str=0x7f05c2f68c08 "double free or corruption (fasttop)", action=1) at malloc.c:4996
 _int_free (av=<optimized out>, p=<optimized out>, have_lock=0) at malloc.c:3840
 _dbus_pending_call_last_unref (pending=0x7f05a000a780) at ../../dbus/dbus-pending-call.c:437
 _dbus_pending_call_unref_and_unlock (pending=<optimized out>) at ../../dbus/dbus-pending-call.c:469