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Cisco Bug: CSCul64514 - Noticed a Traceback for config change from MST to PVRST

Last Modified

May 11, 2018

Products (1)

  • Cisco ASR 9000 Series Aggregation Services Routers

Known Affected Releases


Description (partial)


On Change of config from MST to PVRST  below Trace back is seen.

RP/0/RSP1/CPU0:Nov 22 18:59:53.664 CST: pvstag-io[1112]: %MGBL-SYS-3-

ALREADY_THREADED_MSG : wavl_insert_thread: Attempt to re-add a node to a 

tree  : pkg/bin/pvstag-io : (PID=602437) :  -Traceback= 81f0fcc 4204f9f 

4205023 4210c55 420ea70 420f2d7 824a94f 8248b12 420fdf6 420ff87 4200038


The issue is observed on IOS XR 5.1.0 when trying to change configuration from  MST to PVRST.
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