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Cisco Bug: CSCuw50050 - Sessmgr going to WARN/OVER State due to memory leak of SGS-AP messages

Last Modified

Dec 25, 2016

Products (1)

  • Cisco ASR 5000 Series

Known Affected Releases

17.3.1 19.2.d0 20.0.0 20.0.v0

Description (partial)

Symptom:
[local]MAG-MME-2# show task memory max | grep -E "sessmgr.*13|faci"
Thursday September 24 16:12:03 AST 2015
cpu facility      inst     max          max  alloc          max  alloc  status
3/0 sessmgr          1   1.33G  113%  1.35G  1.19G   43%  1.74G  4.00G  warn
3/0 sessmgr         13   1.31G  112%  1.34G  1.19G   43%  1.73G  4.00G  warn
 
 [local]MAG-MME-2# show task resources |grep -v good
Thursday September 24 16:08:56 AST 2015
                   task   cputime        memory     files      sessions
cpu facility      inst used allc   used  alloc used allc  used  allc S status
----------------------- --------- ------------- --------- ------------- ------
3/0 sessmgr          1 9.9% 100%  1.35G  1.19G   54  500  3399 21120 I   warn
3/0 sessmgr          4 8.3% 100%  1.33G  1.19G   50  500  3814 21120 I   warn
3/0 sessmgr          7  10% 100%  1.33G  1.19G   49  500  3812 21120 I   warn
3/0 sessmgr         10 7.9% 100%  1.34G  1.19G   49  500  3846 21120 I   warn
3/0 sessmgr         13  10% 100%  1.34G  1.19G   52  500  3636 21120 I   warn
3/0 sessmgr         16 9.2% 100%  1.33G  1.19G   53  500  3735 21120 I   warn
Total               340 909.60%   62.61G        10466      570k
 
[local]MAG-MME-2# show logs | more
Thursday September 24 16:09:04 AST 2015
2015-Sep-24+16:09:04.043 [sessmgr 10018 error] [3/0/30441 <sessmgr:13> sessmgr_func.c:48408] [software internal system syslog] Sessmgr-13 full (26400 effective number of calls, 3717 calllines in use, 52902 free flows, 12783 free aaa_sessions, 3717 used-mem-credits, 3717 used-sess-credits, 1403784 mem-usage, 1249280 mem-limit, 0 ecs-queue-usage, 52800 ecs-queue-limit, 0 ecs-num-flows, 0 ecs-max-flows, 0 ecs-mem-limit[ecs-flow/mem-values:ignore], 0x86 limit-flags) - call rejected
 
[local]MAG-MME-2# show session subsystem facility sessmgr instance 13
...
Pilot Packet Statistics: n/a
 
    3709 In-progress calls
     689 In-progress active calls
    3020 In-progress dormant calls
...
 
	The task sessmgr-10 is way over its memory limit! Allocated 1249280K, Using 1375560K	1	2015 Sep 24+04:45:07.888	2015 Sep 24+04:45:07.888
	The task sessmgr-13 is way over its memory limit! Allocated 1249280K, Using 1375020K	1	2015 Sep 23+22:45:07.890	2015 Sep 23+22:45:07.890
	The task sessmgr-16 is way over its memory limit! Allocated 1249280K, Using 1376068K	1	2015 Sep 24+09:30:07.901	2015 Sep 24+09:30:07.901
	The task sessmgr-4 is way over its memory limit! Allocated 1249280K, Using 1376188K	1	2015 Sep 24+09:00:07.935	2015 Sep 24+09:00:07.935
	The task sessmgr-7 is way over its memory limit! Allocated 1249280K, Using 1375968K
 	1	2015 Sep 24+08:45:07.898	2015 Sep 24+08:45:07.898

Conditions:
NA
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