Comment 2 for bug 1236612

StacktraceTop:
 __libc_message (do_abort=do_abort@entry=2, fmt=fmt@entry=0x7f5138936740 "*** Error in `%s': %s: 0x%s ***\n") at ../sysdeps/unix/sysv/linux/libc_fatal.c:199
 malloc_printerr (action=3, str=0x7f5138936ab8 "munmap_chunk(): invalid pointer", ptr=<optimized out>) at malloc.c:4923
 update_theme (chooser=0x3384db0) at gvc-sound-theme-chooser.c:674
 g_cclosure_marshal_VOID__STRINGv (closure=0x33991f0, return_value=<optimized out>, instance=<optimized out>, args=<optimized out>, marshal_data=<optimized out>, n_params=<optimized out>, param_types=0x3307560) at /build/buildd/glib2.0-2.38.0/./gobject/gmarshal.c:1004
 _g_closure_invoke_va (closure=0x33991f0, return_value=0x0, instance=0x32f4f00, args=0x7fff487c6438, n_params=1, param_types=0x3307560) at /build/buildd/glib2.0-2.38.0/./gobject/gclosure.c:840