ESXi host might crash with PSOD during shutdown with IPv6 and MLDv1 in physical network

Products

• VMware vSphere ESXi

Issue/Introduction

Symptoms:

• If you are using an IPv6 address type on an ESXi host
• If you are using Multicast Listener Discovery version 1 (MLDv1) in physical network
• ESXi host may crash with PSOD while shutting down.
• You may observe PSOD screen with a trace similar to:

VMware ESXi 6.7.0 [Releasebuild-8169922 x86_64]
#PF Exception 14 in world 2098376:vmk0-rx-0 IP 0x41802e62abc1 addr 0x40
PIEs:0x12f026023;0x12f027023;0x12f028023;0x0;
cr0=0x8001003d cr2=0x40 cr3=0x185f000 cr4=0x10216c
frame=0x451a1b81b910 ip=0x41802e62abc1 err=0 rflags=0x10206
rax=0x30 rbx=0x430e05998030 rcx=0x100
rdx=0x430e059b8d70 rbp=0x30 rsi=0x45a242966d30
rdi=0x0 r8=0x0 r9=0x4
r10=0x8 r11=0x430e0532eca8 r12=0x430e0532ff60
r13=0x430e0593c9c0 r14=0x45a24298a08e r15=0x18
*PCPU46:2098376/vmk0-rx-0
PCPU  0: SSUSUSSSSSSISISIISSSSSSSSSUSUSSSIISSISSISSSIUSSSSISIIISSIIISIIIS
PCPU 64: IIIISIIUSIIIIIUIIISIIII
Code start: 0x41802d800000 VMK uptime: 0:00:02:05.257
0x451a1b81b9d0:[0x41802e62abc1]mld_set_version@(tcpip4)#<None>+0x161 stack: 0x430e0593c9e8
0x451a1b81ba20:[0x41802e62bb57]mld_input@(tcpip4)#<None>+0x7fc stack: 0x30
0x451a1b81bb20:[0x41802e60d7f8]icmp6_input@(tcpip4)#<None>+0xbe1 stack: 0x30
0x451a1b81bcf0:[0x41802e621d3b]ip6_input@(tcpip4)#<None>+0x770 stack: 0x451a00000000
0x451a1b81be20:[0x41802e59259a]netisr_dispatch@(tcpip4)#<None>+0x1b stack: 0x100000000
0x451a1b81be30:[0x41802e5ba510]ether_demux@(tcpip4)#<None>+0x215 stack: 0x430e0593c9c0
0x451a1b81be60:[0x41802e5ba750]ether_input@(tcpip4)#<None>+0x18d stack: 0x45a24298a000
0x451a1b81bea0:[0x41802e58dab3]if_vmk_rx@(tcpip4)#<None>+0xfc stack: 0x91b823780
0x451a1b81bef0:[0x41802e57ccaf]TcpipRx@(tcpip4)#<None>+0x140 stack: 0x2d
0x451a1b81bf70:[0x41802e57b3ec]TcpipRxDispatch@(tcpip4)#<None>+0x61 stack: 0xc7
0x451a1b81bfa0:[0x41802e57b0ce]TcpipDispatchWorld@(tcpip4)#<None>+0xcf stack: 0x0
0x451a1b81bfe0:[0x41802db081f2]CpuSched_StartWorld@vmkernel#nover+0x77 stack: 0x0
base fs=0x0 gs=0x41804b800000 Kgs=0x0
Failed to verify signatures of the following vib(s): [emulex-esx-brcmfcoecli emulex-esx-elxnetcli brcm-cim-provider brcmfcoe elxiscsi elxnet]. All tardisks validated
Coredump to disk. Slot 1 of 1 on devece naa.60030057026a0ab0227474920b4c17a6:9.
finalized dump header (14/14) DiskDump: Successful.
No port for remote debugger. "Escape" for local debugger.
 

Note: The preceding log excerpts are only examples. Date, time, and environmental variables may vary depending on your environment.

Resolution

This issue is resolved in ESXi 6.7 Update 1 , available at VMware Downloads
In  ESXi 6.5 it is resolved in  ESXi 6.5 Patch ESXi650-201811002, available at Customer Connect Patch Downloads
In ESXi 6.0, it is resolved in ESXi 6.0 Patch ESXi600-201909001.

Workaround:
To workaround this issue,

• Disable IPv6 or Disable MLDv1 from the network switch.

Additional Information

For patch download refer to VMware KB : How to Download ESXi, vCenter Server Patches in Customer Connect