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Cisco Bug: CSCvs56218 - ISSUE SEEN : NP Hard Reset Triggered in Lightspeed LC in NP3 with NP Exception "npu_xmit_pkt_fab"

Last Modified

Oct 19, 2020

Products (1)

  • Cisco ASR 9000 Series Aggregation Services Routers

Known Affected Releases

7.0.2.BASE

Description (partial)

Symptom:
ISSUE SEEN : NP Hard Reset Triggered in Lightspeed LC in NP3 with NP Exception "npu_xmit_pkt_fab"

Build : 7.0.2.22I

NPdatalog File Name :  NPdatalog_0_0_CPU0_np3_diagP1_20191223-032328.txt.gz

Logs Path :   /auto/tftp-viking-blr/balagven/702/DEC23_NP_lockup_LS

Trigger :  LC Reload  of Lightspeed LC 


  The 868 exceptions were triggered by the following (src) code file & <function>
  --------------------------------------------------------------------------------------
(src) -   /san2/prod/7.0.2.22I.SIT_IMAGE/asr9k-x64/ws/platforms/common/gdplane/npu/lightspeed/npu_debug.c:298  see <npu_xmit_pkt_fab>
    (src)  >> [SMU] WS couldn't find npu_debug.c, trying base image....
    (src) /auto/iox-ucs-018-san2/prod/7.0.2.22I.SIT_IMAGE/asr9k-x64/ws/platforms/common/gdplane/npu/lightspeed/npu_debug.c (from base image)
    (src)  >> showing lines 288-308 below <<
     288  *   copy logged data to GPM and/or DMEM before triggering an exception
     289  *****/
     290 FORCE_INLINE
     291 void assert_trigger_p2_interrupt (env_t env,
     292                                   uint32_t reason)
     293 {
     294     // copy data out to DMEM or GPM
     295     debug_copy_data_gpm_dmem(env);



Note :  Please refer the enclosure for the Triage Mail

Conditions:
Trigger :  LC Reload  of Lightspeed LC
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