ESXi occurs PSOD during fnic_rq_clean method

Products

• VMware vSphere ESXi

Issue/Introduction

• ESXi occurs PSOD during fnic_rq_cleanup routine.
• PSOD messaging includes
  
  #PF Exception 14 in world #####:HELPER_MISC_ IP 0x############ addr 0x############
PTEs:0x############;0x############;0x0;
...
0x############:[0x############]fnic_rq_clean@(nfnic)#<None>+0xcf stack: 0x############
0x############:[0x############]cleanup_queue@(nfnic)#<None>+0x70 stack: 0x5
0x############:[0x############]fnic_detach@(nfnic)#<None>+0x28a  stack: 0x############

Environment

VMware vSphere ESXi 7.x

Cause

This issue is caused by fnic_rq_cleanup routine.

Resolution

Engage your driver vendor.

Release Notes for Cisco UCS Virtual Interface Card Drivers, Release 6.0
https://www.cisco.com/c/en/us/td/docs/unified_computing/ucs/release/notes/VIC/6-0/b-release-notes-for-cisco-ucs-vic-drivers-rel-6-0.html#id_125870mrel

Defect ID	Description	First Bundle Affected	Resolved In
CSCwk78247	The ESXi host encounters a PSOD error during fnic_rq_cleanup routine. This issue was seen on the following NFNIC driver versions: 5.0.0.40 5.0.0.42 This issue is now resolved in the NFNIC driver version 5.0.0.46.	NFNIC driver version 5.0.0.40	4.3(6a)