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Cisco Bug: CSCur87539 - SCI1:PXF crashed w/ End of Descriptor Before Cmd Byte Length Exhausted

Last Modified

Feb 01, 2017

Products (1)

  • Cisco uBR10000 Series Universal Broadband Routers

Known Affected Releases

12.2SCH

Description (partial)

This is a corner case, which happens only when sending intercepted traffic during PRE SO under some special configuration.

Symptom:
PXF crashed with below error message:

.Nov 25 22:24:05.652 CST: %C10KEVENTMGR-1-MAJOR_FAULT: PXF DMA Error - End of Descriptor Before Cmd Byte Length Exhausted

Conditions:
this issue happens in such case:
1. Configure LI/SII with MD's IP address routed through the GRE tunnel interface
2. continues traffic from intercepted CM/CPE going through GRE tunnel interface 
3. trigger PRE HA
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