We recently reinstalled Intel S2600WFT server from linux to Windows Server 2016 OS and hosted several VMs using Hyper-V.
After few weeks it started to restart randomly approximately once a week.
After restart from minidump file i see this -
HYPERVISOR_ERROR (20001)
The hypervisor has encountered a fatal error.
Arguments:
Arg1: 0000000000000006
Arg2: 0000000000000004
Arg3: ffffe80300206690
Arg4: 0000000000001012
Debugging Details:
------------------
KEY_VALUES_STRING: 1
Key : Analysis.CPU.mSec
Value: 1687
Key : Analysis.DebugAnalysisManager
Value: Create
Key : Analysis.Elapsed.mSec
Value: 12497
Key : Analysis.Init.CPU.mSec
Value: 1499
Key : Analysis.Init.Elapsed.mSec
Value: 21015
Key : Analysis.Memory.CommitPeak.Mb
Value: 75
Key : Bugcheck.Code.DumpHeader
Value: 0x20001
Key : Bugcheck.Code.Register
Value: 0x20001
Key : WER.OS.Branch
Value: rs1_release
Key : WER.OS.Timestamp
Value: 2022-07-01T17:44:00Z
Key : WER.OS.Version
Value: 10.0.14393.5246
FILE_IN_CAB: 090922-8859-01.dmp
BUGCHECK_CODE: 20001
BUGCHECK_P1: 6
BUGCHECK_P2: 4
BUGCHECK_P3: ffffe80300206690
BUGCHECK_P4: 1012
CUSTOMER_CRASH_COUNT: 1
PROCESS_NAME: System
STACK_TEXT:
ffff870059035598 fffff800
bf63b853 : 0000000000020001 00000000
00000006 0000000000000004 ffffe803
00206690 : nt!KeBugCheckEx
ffff8700590355a0 fffff800
bf551390 : 0000000000000000 00000000
00000000 000001199bda104d fffff800
bf551888 : nt!HvlSkNmiCallbackRoutine+0x5f
ffff8700590355e0 fffff800
bf5e5342 : 0000000000000000 ffff8700
590357f0 0000000000000000 00000000
00000000 : nt!KiProcessNMI+0xb8
ffff870059035630 fffff800
bf5e5143 : 0000000000000000 00000000
00000000 0000000000000000 00000000
00000000 : nt!KxNmiInterrupt+0x82
ffff870059035770 fffff800
bf687d5f : 0000000000000000 00000000
00000000 0000000000000000 00000000
00000000 : nt!KiNmiInterrupt+0x1c3
ffff870058f87180 00000000
00000000 : 0000000000000000 00000000
00000000 0000000000000000 00000000
00000000 : nt!PpmIdleGuestExecute+0x17
SYMBOL_NAME: nt!HvlSkNmiCallbackRoutine+5f
MODULE_NAME: nt
IMAGE_NAME: ntkrnlmp.exe
IMAGE_VERSION: 10.0.14393.5246
STACK_COMMAND: .cxr; .ecxr ; kb
BUCKET_ID_FUNC_OFFSET: 5f
FAILURE_BUCKET_ID: 0x20001_6_4_nt!HvlSkNmiCallbackRoutine
OS_VERSION: 10.0.14393.5246
BUILDLAB_STR: rs1_release
OSPLATFORM_TYPE: x64
OSNAME: Windows 10
FAILURE_ID_HASH: {206f3d59-1d66-1123-10c9-6296cd49c968}
What could be the cause of this issue?