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Cisco Bug: CSCut16234 - High CPU every 10min by process SFF8472

Last Modified

Oct 15, 2018

Products (97)

  • Cisco Catalyst 2960-XR Series Switches
  • Cisco Catalyst 2960X-24PS-L Switch
  • Cisco Catalyst 3560X-48U-S Switch
  • Cisco Catalyst 3560X-48P-S Switch
  • Cisco Catalyst 3560X-48T-E Switch
  • Cisco Catalyst 2960X-24PD-L Switch
  • Cisco Catalyst 2960C-12PC-L Switch
  • Cisco Catalyst 2960C-8TC-S Switch
  • Cisco Catalyst 2960X-48LPS-L Switch
  • Cisco Catalyst 4948E-F Ethernet Switch
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Known Affected Releases

15.2(3)E

Description (partial)

Symptom:
process SFF8472 causes CPU spikes every 10 minutes 

OR

Switch crash preceded by CPU hog messages for the SFF8472 process:
Nov 12 17:14:26.228: %SYS-3-CPUHOG: Task is running for (2097)msecs, more than (2000)msecs (0/0),process = SFF8472.
-Traceback= 0x2120D90z 0x2216DC0z 0x2262B70z 0x2264150z 0x1E0B620z 0x1E04548z 0x2227E70z 0x1D21734z 0x1D26A74z 0x2246E3Cz 0x2246FE0z 0x1C9D488z 0x1C9EE1Cz 0x2225900z 0x2225E64z 0x2226088z 
Nov 12 17:24:26.352: %SYS-3-CPUHOG: Task is running for (2098)msecs, more than (2000)msecs (0/0),process = SFF8472.
-Traceback= 0x216D09Cz 0x216D124z 0x2262DA0z 0x2264150z 0x1E0B620z 0x1E04548z 0x2227E70z 0x1D21734z 0x1D26A74z 0x2246E3Cz 0x2246FE0z 0x1C9D488z 0x1C9EE1Cz 0x2225900z 0x2225E64z 0x2226088z 
Nov 12 17:34:26.484: %SYS-3-CPUHOG: Task is running for (2098)msecs, more than (2000)msecs (1/0),process = SFF8472.
-Traceback= 0x216D0C8z 0x216D0A0z 0x2262DA0z 0x2264150z 0x1E0B620z 0x1E04548z 0x2227E70z 0x1D21734z 0x1D26A74z 0x2246E3Cz 0x2246FE0z 0x1C9D488z 0x1C9EE1Cz 0x2225900z 0x2225E64z 0x2226088z 
Nov 12 17:44:26.600: %SYS-3-CPUHOG: Task is running for (2097)msecs, more than (2000)msecs (0/0),process = SFF8472.
-Traceback= 0x216D0C4z 0x216D0A0z 0x2262DA0z 0x226417Cz 0x2264288z 0x2225974z 0x2225E64z 0x2226088z 0x2227690z 0x2246E64z 0x2246FE0z 0x1C9D488z 0x1C9FC98z 0x2227DF4z 0x1D24408z 0x1D26CDCz 
Nov 12 17:54:26.723: %SYS-3-CPUHOG: Task is running for (2097)msecs, more than (2000)msecs (0/0),process = SFF8472.

Conditions:
multiple DOM enabled SFPs installed in the switch
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