Guest

Preview Tool

Cisco Bug: CSCup33853 - CPUHOG @snmp seen at system boot up phase

Last Modified

Jan 30, 2017

Products (1)

  • Cisco uBR10000 Series Universal Broadband Routers

Known Affected Releases

12.2(33.0.3)SCH

Description (partial)

Symptom:
With the image "ubr10k5-k9p6u2-mz.122-32.8.2.SCI" and dual PRE5, below cpuhog is observed during the system boot up phase:

006416: *Jun 12 07:26:13.660: %SYS-3-CPUHOG: Task is running for (2000)msecs, more than (2000)msecs (393/392),process = SNMP ENGINE.
-Traceback= F7678C4 F767A68 E5290C4 F7E3318 10C4A5E8 10C4F474 FC29488 FBFAA0C FBE6BB0 FC181A0 F1465C8 F13B3A0 
006417: *Jun 12 07:26:13.708: %SNMP-3-CPUHOG: Processing GetNext of docsIfCmtsUpChannelCounterEntry.2
%SYS-3-CPUHOG: Task is running for (2000)msecs, more than (2000)msecs (29/28),process = SNMP ENGINE.
-Traceback= 10F62664 F77333C F778794 10FD2A14 F767A4C E5290C4 F7E3318 10C492E0 10C4A5D0 10C4F474 FC29488 FBFAA0C FBE6BB0 FC181A0 F1465C8 F13B3A0

Conditions:
With the image "ubr10k5-k9p6u2-mz.122-32.8.2.SCI" and dual PRE5,
when system bootup with snmp server continue polling all snmp tables ,some times ,this CPU HOG may happen.
when polling several tables such as 
  docsBpi2CmtsIpMulticastMapEntry
  docsBpi2CmtsTEKEntry
  docsIfCmtsUpChannelCounterEntry
may easily reproduce this issue.
Bug details contain sensitive information and therefore require a Cisco.com account to be viewed.

Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
  • Severity
  • Known Fixed Releases
  • Related Community Discussions
  • Number of Related Support Cases
Bug information is viewable for customers and partners who have a service contract. Registered users can view up to 200 bugs per month without a service contract.