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Cisco Bug: CSCum57489 - Run a clear counters will cause a tracback with the HWIC-1DSU-56K4

Last Modified

Jan 28, 2017

Products (74)

  • Cisco 1900 Series Integrated Services Routers
  • Cisco 819 Hardened Integrated Services Router
  • Cisco C897VA Integrated Services Router
  • Cisco 2951 Integrated Services Router
  • Cisco 892W Integrated Services Router
  • Cisco 888W Integrated Services Router
  • Cisco 861W Integrated Services Router
  • Cisco 886VAG 3G Integrated Services Router
  • Cisco 1905 Serial Integrated Services Router
  • Cisco C892FSP Integrated Services Router
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Known Affected Releases

15.3(3)M

Description (partial)

Symptom:
When running clear counters command on a 1921 with the HWIC-1DSU installed we are seeing traceback events on the 15.3.3M1 code release. When the clear counters command is issued you will see the below.

lab-r01# clear counters
Clear "show interface" counters on all interfaces [confirm]lab-r01#
000098: Jan 14 06:54:51.688 CENTRAL: %SERVICE_MODULE-4-INTERBYTETIMEOUT: Unit Serial0/0/0 - timed out while reading byte 1 of 2 length register 13
-Traceback= 21665388z 21661484z 21661B44z 215F95ACz 227A5DCCz 227AC808z 227BD528z 2409B9DCz 2409B9C0z
000099: Jan 14 06:54:51.688 CENTRAL: %SERVICE_MODULE-4-ALARMFAILURE: Unit Serial0/0/0 - Could not access alarm status - disabling alarm processing
mnlabF7-4G2-aar01#
000100: Jan 14 06:54:51.688 CENTRAL: %CLEAR-5-COUNTERS: Clear counter on all interfaces by johns52 on console

Traceback decode:
0x21000000 : start                            (+)
0x21665388 : sw56_alarm_processor             (+0x44)
0x21661484 : csu_dsu_alarm_processor_routine  (+0x44)
0x21661B44 : csu_dsu_clear_counters           (+0x30)
0x215F95AC : uidb_clear_counters              (+0x264)
0x227A5DCC : parse_call_action_func           (+0xa8)
0x227AC808 : parse_cmd                        (+0x15b0)
0x227BD528 : exec                             (+0x11d8)
0x2409B9DC : r4k_process_dispatch             (+0x1c)
0x2409B9C0 : r4k_process_dispatch             (+0x0)

Conditions:
ISRG2 running 15.3.3M1
Installed HWIC-1DSU
Issue clear counters command.

Does not appear to impact the card but may if seen enough times,
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