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Cisco Bug: CSCvu37853 - Cisco Nexus 9000 TAHUSD crash with a HAP failure on Cisco NX-OS 9.2(3)

Last Modified

Jul 09, 2020

Products (1)

  • Cisco Nexus 9000 Series Switches

Known Affected Releases

9.2(3) 9.2(4) 9.3(4) 9.3(4.79)

Description (partial)

Symptom:
1/ inside the module level executing -  "show hardware internal tah mcast l2ptr hashindex 40972 asic 0" (or with a non valid hashindex or non valid asic unit)

2/  show cores 
VDC  Module  Instance  Process-name     PID       Date(Year-Month-Day Time)
---  ------  --------  ---------------  --------  -------------------------

1    3       1         tahusd           9187      2020-05-25 13:18:41
1    1       1         tahusd           9186      2020-05-25 13:19:59

3/ Module crash with the following reason

********* Exception info for module 1 ********

exception information --- exception instance 1 ----
Module Slot Number: 1
Device Id         : 134
Device Name       : System Manager
Device Errorcode  : 0x0000054c
Device ID         : 00 (0x00)
Device Instance   : 00 (0x00)
Dev Type (HW/SW)  : 05 (0x05)
ErrNum (devInfo)  : 76 (0x4c)
System Errorcode  : 0x401e008a Service on linecard had a hap-reset
Error Type        : FATAL error
PhyPortLayer      : 0x0
Port(s) Affected  :
Error Description : tahusd hap reset
DSAP              : 0 (0x0)
UUID              : 1 (0x1)
Time              : Mon May 25 13:20:04 2020
                    (Ticks: 5ECB9BD4 jiffies)

4/ I/O modules models : N9K-X9732C-EX and N9K-X97160YC-EX

Conditions:
Executing module level command "show hardware internal tah mcast l2ptr hashindex 40972 asic 0"
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