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Cisco Bug: CSCvi14745 - EPA-10X10GE or EPA-18X1GE - Memory leak with input mac-address accounting

Last Modified

Oct 30, 2019

Products (161)

  • Cisco ASR 1000 Series Aggregation Services Routers
  • Cisco Catalyst 9300-48U-A Switch
  • Cisco Catalyst 3850-16XS-S Switch
  • Cisco Catalyst 3650-24PD-E Switch
  • Cisco Catalyst 3650-48TQ-L Switch
  • Cisco 4221 Integrated Services Router
  • Cisco Catalyst 3650-48FS-S Switch
  • Cisco Catalyst 3850-24U-L Switch
  • Cisco Catalyst 3650-12X48UQ-L Switch
  • Cisco Catalyst 9300-48P-A Switch
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Known Affected Releases

Denali-16.3.5 Everest-16.6.1 Fuji-16.7.1

Description (partial)

Symptom:
Memory leak is seen under processes *MallocLite* or "IOSD ipc task" on EPA-10X10GE or EPA-18X1GE. This can eventually causes the EPA to crash and generate a SIP_0_mcpcc-lc-ms core file.

Conditions:
MAC address accounting in ingress direction is configured on EPA-10X10GE or EPA-18X1GE

For example:
interface TenGigabitEthernet0/0/0
ip accounting mac-address input

"ip accounting mac-address output" does not cause this issue.

Another known trigger is when the sender HW Address count is not same as the Sender Protocol Address count. In other words, the number of source mac addresses is not same as the number of source IP addresses which cause duplicate mac assignment.
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Bug Details Include

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