ESXi Host experiences PSOD with "fdls_tport_timer_callback@(nfnic)" message

Products

• VMware vSphere ESXi

Issue/Introduction

Backtrace:
  0x###########:[0x###########]fdls_tport_timer_callback@(nfnic)#<None>+0x18 stack: 0x###########, 0x###########, 0x0, 0x0, 0x###########
  0x###########:[0x###########]VmkTimerQueueWorldFunc@vmkernel#nover+0x38f stack: 0x0, 0x3e, 0x3e, 0x###########, 0x###########
  0x###########:[0x###########]CpuSched_StartWorld@vmkernel#nover+0xbf stack: 0x0, 0x###########, 0x0, 0x0, 0x0
  0x###########:[0x###########]Debug_IsInitialized@vmkernel#nover+0xc stack: 0x0, 0x0, 0x0, 0x0, 0x0

From vmkernel.log

YYYY-MM-DDTHH:MM:SS cpu66:########)nfnic: <1>: INFO: fdls_process_tgt_plogi_rsp: ####:: PLOGI returned FC_LS_REJ from target: 0xc#####
YYYY-MM-DDTHH:MM:SS cpu66:########)nfnic: <1>: INFO: fnic_tport_exch_reset: 4564: Tport exch reset: target id: 1#### tport->fcid: 0xc#####
YYYY-MM-DDTHH:MM:SS cpu66:########)nfnic: <1>: INFO: fnic_fdls_remove_tport: 381: Removed tport from deleted list tid:1####
YYYY-MM-DDTHH:MM:SS cpu66:########)nfnic: <1>: INFO: fdls_process_tgt_plogi_rsp: ####::: PLOGI returned FC_LS_REJ from target: 0xc#####
YYYY-MM-DDTHH:MM:SS cpu77:########)nfnic: <1>: INFO: fnic_delete_destroyed_paths: ###: Releasing resource tport: 1####

Environment

• ESXi 7.x
• ESXi 8.x

Cause

A race condition due to nfnic driver, resulting in ESXi host failing with a purple diagnostic screen (PSOD)

Resolution

Update the Cisco "nfnic" driver to version "5.0.0.45"  or above

To download nfnic driver go to Drivers & Tools at VMware vSphere ESX Drivers

For additional assistance, contact Cisco Support: Cisco Support Assistant