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Cisco Bug: CSCuo66968 - CLC crashed @ chunk_free_with_pc during LC switchover

Last Modified

Sep 06, 2018

Products (1)

  • Cisco uBR10000 Series Universal Broadband Routers

Known Affected Releases

12.2(33)SCH 12.2(33.0.2)SCH 12.2(33.0.3)SCH

Description (partial)

Slot 5/1 got crashed during LC switchover.

1. Boot up cmts.
2. Generate lots of messages(either open debug or doing SO or anything that can cause lots of messages in a short time)
3. When logger process cannot handle all these messages, causing queue full, crash can be observed in some cases.

Queue full is one requirement, it also hit some packet get from buffer with one pointer didn't set to NULL, which is quite random.

The crash will seen every time with certain configuration, it may cause not only LC, but also RP crash in some condition.
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