PSOD: NMI IPI: Panic requested by another PCPU. RIPOFF(base):RBP:CS [0xaaaaa(0xbbbbbbb):0xcccccccc:0x748] (Src 0x1, CPUx)

Products

• VMware vSphere ESXi 8.0

Issue/Introduction

After patching the ESXi host to 8.0 U2c, the PSOD was observed with the following backtrace.

Information:   Panic Details: Crash at YYYY-MM-DDThh:mm:ssZ on CPU x running world 209xxx. VMK Uptime:7:16:10:56.184
PSOD Message: @BlueScreen: NMI IPI: Panic requested by another PCPU. RIPOFF(base):RBP:CS [0xaaaaa(0xbbbbbbb):0xcccccccc:0x748] (Src 0x1, CPUx)
Backtrace for Current CPU - x:

PanicvPanicInt@vmkernel#nover
Panic_WithBacktrace@vmkernel#nover
IDTNMIWork@vmkernel#nover+0x95
Int2_NMI@vmkernel#nover+0x9 stack
gate_entry@vmkernel#nover+0xa7
Printf_WithFunc@vmkernel#nover
vsnprintf@vmkernel#nover+0x33
vmk_StringVFormat@vmkernel#nover
Log_FormatStringV@vmkernel#nover
LogWarningWithPcpu@vmkernel#nover
_vmk_LogMessage@vmkernel#nover
LogExceptionSignal@(vmw_ahci)#<None>
ahciSignalException@(vmw_ahci)#<None>
CompletionBottomHalf@(vmw_ahci)#<None>
HBAIntrHandler@(vmw_ahci)#<None>+0xb
AHCI_EdgeIntrHandler@(vmw_ahci)#<None>
IntrCookieBH@vmkernel#nover+0x170
BH_DrainAndDisableInterrupts@vmkernel#nover
IntrCookie_VmkernelInterrupt@vmkernel#nover
IDT_IntrHandler@vmkernel#nover
gate_entry@vmkernel#nover
EnablePortInterrupts@(vmw_ahci)#<None>
ExceptionHandlerWorld@(vmw_ahci)#<None>
vmkWorldFunc@vmkernel#nover+0x31
CpuSched_StartWorld@vmkernel#nover
Debug_IsInitialized@vmkernel#nover

 

Environment

VMware vSphere ESXi 8.0U2

Cause

Based on the memory dump log, when the CD-ROM device is connected to the AHCI controller, a storm from the AHCI driver caused the thread to hang, resulting in a PSOD issue on the ESXi host.

Resolution

Please contact the host hardware vendor to verify the health of the media and drivers.