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Cisco Bug: CSCup33393 - Pifibm_server_lc crashes continuously on CPAK LC after applying MPP

Last Modified

Sep 20, 2018

Products (18)

  • Cisco Network Convergence System 6000 Series Routers
  • Cisco CRS-1 Line Card Chassis (Dual)
  • Cisco CRS-X 8-Slot Single-Shelf System
  • Cisco CRS-1 Line Card Chassis (Multi)
  • Cisco CRS-1 16-Slot Line Card Chassis
  • Cisco CRS-X Multishelf System
  • Cisco CRS-3 Multishelf System
  • Cisco IOS XR Software
  • Cisco CRS-1 4-Slot Single-Shelf System
  • Cisco CRS-3 16-Slot Single-Shelf System
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Known Affected Releases


Description (partial)

pifibm_server_lc process ( LPTS process) will crash continuously on LC.

In MPP config if more than one entry is present with same IP address but different subnet mask, there will be conflicting entries in the LPTS table.
When the config is getting applied, first entry will get added to the table.
When the second entry comes for addition to the LPTS table, the key lengths are compared.
If the keys are same, a comparison is done for the data. Here we have assert in the code to check if the sata is same.

In this case data will be different and hence the lpts process will crash.
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