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Cisco Bug: CSCup78975 - MALLOC_FAILED errors generated with 'mcastfwd' process

Last Modified

Sep 09, 2019

Products (6)

  • Cisco Nexus 5000 Series Switches
  • Cisco Nexus 5548P Switch
  • Cisco Nexus 5596UP Switch
  • Cisco Nexus 5020 Switch
  • Cisco Nexus 5548UP Switch
  • Cisco Nexus 5010 Switch

Known Affected Releases

5.1(3)N2(1)

Description (partial) 

Symptom:
A Nexus switch may exhibit MALLOC_FAILED errors in the 'mcastfwd' process similar to the following -

%MCASTFWD-4-SYSLOG_SL_MSG_WARNING: MCASTFWD-3-MALLOC_FAILED: message repeated 18 times in last 10 sec 
%MCASTFWD-3-MALLOC_FAILED:  mcastfwd [3427]  m_copyin failed in mfwd_ip_main()

Conditions:
There are generated within the process while memory and IGMP statistics may not show any issues.
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Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
  • Severity
  • Known Fixed Releases
  • Related Community Discussions
  • Number of Related Support Cases
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