Unexpected exception to CPU: vector 1400 CISCO2951/K9

[pasha-life]

Hi everyone, need help with router CISCO2951/K9  IOS : boot system flash0:c2951-universalk9-mz.SPA.155-3.M2.bin  with telephony service. it is reload itself periodically crash info showing 

"Unexpected exception to CPU: vector 1400, PC = 0x9AD2C34 , LR = 0x9A71208"

last info says "%DIALPEER_DB-3-ADDPEER_MEM_THRESHOLD: Addition of dial-peers limited by available memory"

is this a CPU memory problem ? 

Thanks 

[Leo Laohoo]

Post the complete output to the following commands:

1.  sh version; 

2.  dir

[pasha-life]

Cisco IOS Software, C2951 Software (C2951-UNIVERSALK9-M), Version 15.5(3)M2, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2016 by Cisco Systems, Inc.
Compiled Sun 07-Feb-16 05:26 by prod_rel_team

ROM: System Bootstrap, Version 15.0(1r)M16, RELEASE SOFTWARE (fc1)

Pasha-router uptime is 4 hours, 27 minutes
System returned to ROM by reload at 16:05:22 Baku Fri Jul 8 2016
System restarted at 16:07:57 Baku Fri Jul 8 2016
System image file is "flash0:c2951-universalk9-mz.SPA.155-3.M2.bin"
Last reload type: Normal Reload
Last reload reason: Reload Command

Cisco CISCO2951/K9 (revision 1.1) with 483328K/40960K bytes of memory.
Processor board ID 
3 Gigabit Ethernet interfaces
28 Serial interfaces
1 terminal line
1 Channelized E1/PRI port
4 Voice FXO interfaces
DRAM configuration is 72 bits wide with parity enabled.
255K bytes of non-volatile configuration memory.
3649520K bytes of USB Flash usbflash0 (Read/Write)
250880K bytes of ATA System CompactFlash 0 (Read/Write)

License Info:

License UDI:

-------------------------------------------------
Device# PID SN
-------------------------------------------------
*1 CISCO2951/K9 

Suite License Information for Module:'c2951'

--------------------------------------------------------------------------------
Suite Suite Current Type Suite Next reboot
--------------------------------------------------------------------------------
FoundationSuiteK9 None None None
securityk9
datak9

AdvUCSuiteK9 None None None
uck9
cme-srst
cube

Technology Package License Information for Module:'c2951'

------------------------------------------------------------------------
Technology Technology-package Technology-package
Current Type Next reboot
------------------------------------------------------------------------
ipbase ipbasek9 Permanent ipbasek9
security None None None
uc uck9 Permanent uck9
data None None None

Configuration register is 0x2102

DIR

router#dir
Directory of flash0:/

1 -rw- 109620556 Apr 10 2016 13:24:06 +04:00 c2951-universalk9-mz.SPA.155-3.M2.bin
2 -rw- 3064 Oct 2 2013 21:25:06 +04:00 cpconfig-29xx.cfg
3 drw- 0 Dec 24 2013 10:41:16 +04:00 its
151 drw- 0 Jun 22 2016 15:43:04 +04:00 ccpexp
606 -rw- 6215680 Jun 22 2016 15:39:44 +04:00 ccpexpressAdmin_3_1_2_en.tar
607 drw- 0 Oct 2 2013 21:25:26 +04:00 ccpexp2
843 -rw- 4639974 Dec 24 2013 12:42:40 +04:00 apps45.9-2-1TH1-13.sbn
844 -rw- 575590 Dec 24 2013 12:42:40 +04:00 cnu45.9-2-1TH1-13.sbn
845 -rw- 2211969 Dec 24 2013 12:42:44 +04:00 cvm45sccp.9-2-1TH1-13.sbn
846 -rw- 356907 Dec 24 2013 12:42:46 +04:00 dsp45.9-2-1TH1-13.sbn
847 -rw- 1886651 Dec 24 2013 12:42:48 +04:00 jar45sccp.9-2-1TH1-13.sbn
848 -rw- 656 Dec 24 2013 12:42:48 +04:00 SCCP45.9-2-1S.loads
849 -rw- 662 Dec 25 2013 14:16:00 +04:00 term45.default.loads
850 -rw- 662 Dec 25 2013 14:15:32 +04:00 term65.default.loads
851 -rw- 167936 Dec 25 2013 11:39:18 +04:00 CMTERM-7916.1-0-4.tar
852 -rw- 166179 Dec 25 2013 11:39:58 +04:00 B016-1-0-4.SBN
853 -rw- 2885 Jun 22 2016 15:46:48 +04:00 home.shtml
854 -rw- 443192 Jun 24 2016 09:48:00 +04:00 crashinfo_20160624-094800-Baku
855 -rw- 402670 Jun 28 2016 17:32:22 +04:00 crashinfo_20160628-173222-Baku
856 -rw- 372370 Jun 29 2016 10:53:48 +04:00 crashinfo_20160629-105349-Baku
857 -rw- 371271 Jun 29 2016 18:09:28 +04:00 crashinfo_20160629-180928-Baku
858 -rw- 419286 Jul 5 2016 11:49:06 +04:00 crashinfo_20160705-114907-Baku
859 -rw- 2215430 Dec 25 2013 14:11:54 +04:00 cvm45sccp.9-3-1ES8.sbn
860 -rw- 1890899 Dec 25 2013 14:12:46 +04:00 jar45sccp.9-3-1ES8.sbn
861 -rw- 363095 Dec 25 2013 14:13:24 +04:00 dsp45.9-3-1ES8.sbn
862 -rw- 4665621 Dec 25 2013 14:14:10 +04:00 apps45.9-3-1ES8.sbn
863 -rw- 581096 Dec 25 2013 14:14:50 +04:00 cnu45.9-3-1ES8.sbn
864 -rw- 666 Dec 25 2013 14:16:30 +04:00 SCCP45.9-3-1SR1-1S.loads
865 drw- 0 Apr 15 2016 11:29:28 +04:00 Desktops
872 -rw- 1105 Apr 22 2016 23:44:50 +04:00 Ringlist.xml
873 -rw- 299302 May 30 2014 12:43:24 +04:00 tzupdater.jar
874 -rw- 391800 Jul 8 2016 15:55:38 +04:00 crashinfo_20160708-155539-Baku
875 -rw- 80457 Apr 22 2016 23:10:44 +04:00 Sunrise.raw
876 -rw- 9705 Apr 22 2016 23:10:56 +04:00 TF200ring1.raw
877 -rw- 123335 Apr 22 2016 23:40:44 +04:00 Ripples.raw
878 -rw- 877672 Mar 12 2015 16:14:08 +04:00 Qarayev.au
879 -rw- 125183 Apr 22 2016 23:40:56 +04:00 Ascent.raw
880 -rw- 655 Nov 19 2014 14:31:12 +04:00 term31.default.loads
881 -rw- 123215 Apr 22 2016 23:41:06 +04:00 Delight.raw
882 -rw- 127154 Apr 22 2016 23:41:18 +04:00 Mellow.raw
883 -rw- 127952 Apr 22 2016 23:41:28 +04:00 Mischief.raw
884 -rw- 370898 Apr 21 2016 17:48:56 +04:00 crashinfo_20160421-174857-Baku
885 -rw- 33088 Apr 22 2016 23:41:36 +04:00 Nokia.raw
886 -rw- 80457 Apr 22 2016 23:41:46 +04:00 Reflections.raw
887 -rw- 48692 Apr 22 2016 23:41:56 +04:00 Ringer.raw

256507904 bytes total (105369600 bytes free)

[Leo Laohoo]

Kindly attach the file "crashinfo_20160708-155539-Baku" & "crashinfo_20160705-114907-Baku" to the thread.

[pasha-life]

"crashinfo_20160708-155539-Baku" & "crashinfo_20160705-114907-Baku"

Attached

[Leo Laohoo · Accepted solution]

Currently the appliance has a default DRAM value of 512 Mb and it sounds like not enough DRAM.  The crash is possibly caused by MORE dial-peers trying to join the call manager and the appliance keeps pushing them back due to lack of memory.