Skip to main content
NetApp Knowledge Base

Panic during HW upgrade from FAS8040 to A800 when transitioning to switchless

Last Updated:

Applies to

  • AFF A800 onboard T6 ports e0a and e0b
  • X1146A T6 NIC
  • ONTAP 9


  • HW upgrade from FAS8040 two-node switchless cluster to AFF A800 two-node switchless cluster
  • Temporary cluster network switches (Cisco Nexus C3232 at 40GbE speeds) used to add the AFF A800 HA pair to the cluster
  • Panic triggered when transitioning back to switchless connections using 100GbE cables.
  • Panic message example:
PANIC: page fault (supervisor read data, page not present) on VA 0 cs:rip 0x20:0xffffffff8d5eb4e7 rflags 0x10a07 in process NwkThd_02 on release 9.8P14 (C) on ...
version: 9.8P14: Tue Aug 23 11:33:04 EDT 2022

Sign in to view the entire content of this KB article.

New to NetApp?

Learn more about our award-winning Support

NetApp provides no representations or warranties regarding the accuracy or reliability or serviceability of any information or recommendations provided in this publication or with respect to any results that may be obtained by the use of the information or observance of any recommendations provided herein. The information in this document is distributed AS IS and the use of this information or the implementation of any recommendations or techniques herein is a customer's responsibility and depends on the customer's ability to evaluate and integrate them into the customer's operational environment. This document and the information contained herein may be used solely in connection with the NetApp products discussed in this document.