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Cisco Bug: CSCuj66521 - sessmgr Assertion mme-app/app/mme_emm_fsm.c:5291 mme_emm_fsm_map_event()

Last Modified

Jan 28, 2017

Products (1)

  • Cisco ASR 5000 Series

Known Affected Releases

12.0(35) 14.0(43)

Description (partial)

Symptom:
Assertion failure at sess/mme/mme-app/app/mme_emm_fsm.c:5291
Function: mme_emm_fsm_map_event()
Expression: ue_ctxt->muc_mpl[MME_PROCEDURE_CLASS_HO]
Proclet: sessmgr (f=66000,i=61)
Process: card=6 cpu=0 arch=X pid=15460 cpu=~32% argv0=sessmgr
Crash time: 2013-Sep-17+17:08:31 UTC
Recent errno: 11 Resource temporarily unavailable
Last Bounce:
Src: sessmgr (f=66000,i=61)
Dst: (f=2000,i=8031084,m=214749)
ID: 0x3c640600559aec44
Input: smgr_req_notify_call_trace_match
Output: smgr_rsp_notify_call_trace_match
Callback: [ aa73100/X] sessmgr_process_trace_rsp()
Class: HIGH
Flavour: NONBLOCKING REMOTE UNICAST
TCP: connct=0 elapsed=0ms code=NS_MISSING (Peer is not present)
Nameservice: valid=0 age=0 card=0 cpu=0 pid=0 debug=0
Registers:
gs fs es ds
00000000 00000000 0000007b c010007b
edi esi ebp esp
00000000 00000000 bfff40c8 bfff40ac
ebx edx ecx eax
00003c64 b7f07958 00000006 00000000
trap err eip cs
00000000 00000000 b7e2a491 00000073
efl uesp ss
00000207 bfff40ac 0000007b
Stack (48216@0xbfff4000):
[b7e2a491/X] kill() sp=0xbfff40c8
[10455361/X] sn_assert() sp=0xbfff40f8
[ da51f9b/X] mme_emm_fsm_map_event() sp=0xbfff4148
[ da56eb3/X] mme_disp_handle_emm_evt() sp=0xbfff4228
[ da5a725/X] mme_disp_ncall_answered_handle_s11_msg() sp=0xbfff42b8
[ da24069/X] mme_fsm_event_handler() sp=0xbfff4718
[ da9c734/X] mme_app_handle_events_from_egtpc_app() sp=0xbfff47d8
[ d83d09e/X] egtpc_sap_dispatch_routine() sp=0xbfff4808
[ d8046f0/X] egtpc_send_ind_evt() sp=0xbfff4da8
[ d81d4a5/X] egtpc_handle_delete_bearer_req_msg() sp=0xbfff4f78
[ d7ea432/X] egtpc_handle_tun_n_mob_mgmt_message() sp=0xbfff50a8
[ d7e6ce4/X] egtpc_handle_gtp_message() sp=0xbfffcfe8
[ afc89da/X] sessmgr_egtp_handle_gtpc_message() sp=0xbfffd718
[ c9368fc/X] sessmgr_med_data_receive() sp=0xbffff678
[104c5b53/X] sn_loop_run() sp=0xbffffc08
[102fa994/X] main() sp=0xbffffc48

Conditions:
Collision between a 3G->4G TAU-based relocation from an SGSN and a Delete Bearer Request from the PGW/SGW.
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