PSOD in an NSX-T environment using DFW

Products

• VMware NSX Networking

Issue/Introduction

Symptoms:

• NSX-T 2.5.x versions can be affected.
• The PSOD backtrace includes a reference to "pfr_kif_ktbp", similar to the example below however backtraces may differ. If in doubt, please open an SR with VMware GSS for clarification.

Panic Details: Crash at 2020-02-11T01:10:08.915Z on CPU 43 running world 71501 - netcpa. VMK Uptime:0:08:53:27.923
Panic Message: @BlueScreen: #GP Exception 13 in world 71501:netcpa @ 0x418037615ffe
Backtrace:
  0x43923a69abc0:[0x418037615ffe][email protected]#1.0.6.5+0x16 stack: 0x430f87bdebb8, 0x430f8835b688, 0x430ffa083130, 0x8, 0x 430f87c74b40
  0x43923a69abc8:[0x418037617ca5][email protected]#1.0.6.5+0x55 stack: 0x430f8835b688, 0x430ffa083130, 0x8, 0x430f87c74b40, 0x0
  0x43923a69ac38:[0x4180376183b7][email protected]#1.0.6.5+0x113 stack: 0x430ff8b64a30, 0x430f87bdebb8, 0x430f8835b7d8, 0x4180375a62 6e, 0x430ff8b649d0
  0x43923a69ac68:[0x4180375a626e][email protected]#1.0.6.5+0x1a stack: 0x430f8835b7d8, 0x430f87bdebb8, 0x1, 0x43923a69ae1c, 0x430f8835 b7d8

Environment

VMware NSX-T Data Center 2.x
VMware NSX-T Data Center

Cause

This PSOD is caused by a software issue with DFW which can happen randomly after an NSGroup or IPset is deleted.

Resolution

This issue is resolved in VMware NSX-T Data Center 3.0, available at VMware Downloads.

Workaround:
Currently, there is no workaround.