Something

Index: pbx/pbx_dundi.c
===================================================================
--- pbx/pbx_dundi.c     (revision 9587)
+++ pbx/pbx_dundi.c     (working copy)
@@ -4726,6 +4726,7 @@
        ast_unregister_switch(&dundi_switch);
        ast_custom_function_unregister(&dundi_function);
        res = ast_unregister_application(app);
+       sched_context_destroy(sched);
        return res;
 }

Index: channels/chan_sip.c
===================================================================
--- channels/chan_sip.c (revision 9587)
+++ channels/chan_sip.c (working copy)
@@ -13219,6 +13219,7 @@
        clear_realm_authentication(authl);
        clear_sip_domains();
        close(sipsock);
+       sched_context_destroy(sched);

        return 0;
 }
Index: channels/chan_iax2.c
===================================================================
--- channels/chan_iax2.c        (revision 9587)
+++ channels/chan_iax2.c        (working copy)
@@ -9506,6 +9506,7 @@
        ast_channel_unregister(&iax2_tech);
        delete_users();
        iax_provision_unload();
+       sched_context_destroy(sched);
        return 0;
 }

Index: channels/chan_mgcp.c
===================================================================
--- channels/chan_mgcp.c        (revision 9587)
+++ channels/chan_mgcp.c        (working copy)
@@ -4388,6 +4388,7 @@
        ast_cli_unregister(&cli_debug);
        ast_cli_unregister(&cli_no_debug);
        ast_cli_unregister(&cli_mgcp_reload);
+       sched_context_destroy(sched);

        return 0;
 }