#0  shutdown_subscriptions (sub=0x0) at res_pjsip_pubsub.c:1145
1145		if (AST_VECTOR_SIZE(&sub->children) > 0) {
(gdb) bt
#0  shutdown_subscriptions (sub=0x0) at res_pjsip_pubsub.c:1145
#1  0x00007fbcbc0115cd in subscription_tree_destructor (obj=0x7fbcc448d2b8) at res_pjsip_pubsub.c:1171
#2  0x000000000045ff0c in internal_ao2_ref (user_data=0x7fbcc448d2b8, delta=-1, file=0x615494 "astobj2.c", line=513, func=0x615720 <__FUNCTION__.8363> "__ao2_ref")
    at astobj2.c:442
#3  0x0000000000460230 in __ao2_ref (user_data=0x7fbcc448d2b8, delta=-1) at astobj2.c:513
#4  0x00007fbcbc00fcfb in create_subscription_tree (handler=handler@entry=0x7fbca7563380 <presence_handler>, endpoint=endpoint@entry=0x2ad08c0, 
    rdata=rdata@entry=0x7fbcfc180840, resource=resource@entry=0x7fbcfc1807f0 "1001", generator=generator@entry=0x7fbcaf390180 <pidf_body_generator>, 
    tree=tree@entry=0x7fbcfc180830) at res_pjsip_pubsub.c:1249
#5  0x00007fbcbc01086b in subscription_persistence_recreate (obj=0x7fbcc46cd6d0, arg=<optimized out>, flags=<optimized out>) at res_pjsip_pubsub.c:1359
#6  0x000000000046121b in internal_ao2_traverse (self=0x7fbcc454a0c0, flags=OBJ_NODATA, cb_fn=0x7fbcbc0104e0 <subscription_persistence_recreate>, arg=0x7fbcc4275530, 
    data=0x0, type=AO2_CALLBACK_DEFAULT, tag=0x0, file=0x0, line=0, func=0x0) at astobj2_container.c:351
#7  0x0000000000461538 in __ao2_callback (c=0x7fbcc454a0c0, flags=OBJ_NODATA, cb_fn=0x7fbcbc0104e0 <subscription_persistence_recreate>, arg=0x7fbcc4275530)
    at astobj2_container.c:452
#8  0x00007fbcbc00f551 in subscription_persistence_load (data=<optimized out>) at res_pjsip_pubsub.c:1384
#9  0x00000000005e9ee1 in ast_taskprocessor_execute (tps=0x17b0358) at taskprocessor.c:766
#10 0x00000000005f150d in threadpool_execute (pool=0x1667bb8) at threadpool.c:351
#11 0x00000000005f2b47 in worker_active (worker=0x17b98e8) at threadpool.c:1072
#12 0x00000000005f28e3 in worker_start (arg=0x17b98e8) at threadpool.c:992
#13 0x00000000005fe89b in dummy_start (data=0x16b8e30) at utils.c:1201
#14 0x00007fbcffa16182 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#15 0x00007fbcfecd1fbd in clone () from /lib/x86_64-linux-gnu/libc.so.6


[Sep 29 03:30:57] ERROR[8069]: res_pjsip.c:2190 ast_sip_create_dialog_uas: Could not create dialog with endpoint 2001. Invalid URI (PJSIP_EINVALIDURI)
[Sep 29 03:30:57] WARNING[8069]: res_pjsip_pubsub.c:1252 create_subscription_tree: Unable to create dialog for SIP subscription
[Sep 29 03:30:57] ERROR[8069]: res_pjsip_pubsub.c:1366 subscription_persistence_recreate: FAILED to re-create subscription
[Sep 29 03:30:57] ERROR[8069]: res_pjsip.c:2190 ast_sip_create_dialog_uas: Could not create dialog with endpoint 2001. Invalid URI (PJSIP_EINVALIDURI)
[Sep 29 03:30:57] WARNING[8069]: res_pjsip_pubsub.c:1252 create_subscription_tree: Unable to create dialog for SIP subscription
[Sep 29 03:30:57] ERROR[8069]: res_pjsip_pubsub.c:1366 subscription_persistence_recreate: FAILED to re-create subscription
[Sep 29 03:30:57] ERROR[8069]: res_pjsip.c:2190 ast_sip_create_dialog_uas: Could not create dialog with endpoint 2001. Invalid URI (PJSIP_EINVALIDURI)
[Sep 29 03:30:57] WARNING[8069]: res_pjsip_pubsub.c:1252 create_subscription_tree: Unable to create dialog for SIP subscription
[Sep 29 03:30:57] ERROR[8069]: res_pjsip_pubsub.c:1366 subscription_persistence_recreate: FAILED to re-create subscription