UNEXPECTED_KERNEL_MODE_TRAP (7f)
This means a trap occurred in kernel mode, and it's a trap of a kind
that the kernel isn't allowed to have/catch (bound trap) or that
is always instant death (double fault). The first number in the
BugCheck params is the number of the trap (8 = double fault, etc)
Consult an Intel x86 family manual to learn more about what these
traps are. Here is a *portion* of those codes:
If kv shows a taskGate
use .tss on the part before the colon, then kv.
Else if kv shows a trapframe
use .trap on that value
Else
.trap on the appropriate frame will show where the trap was taken
(on x86, this will be the ebp that goes with the procedure KiTrap)
Endif
kb will then show the corrected stack.
Arguments:
Arg1: 0000000000000008, EXCEPTION_DOUBLE_FAULT
Arg2: fffff80727f2ce50
Arg3: fffff80727f12000
Arg4: fffff80720d10dde
Debugging Details:
------------------
*** WARNING: Unable to verify timestamp for vgk.sys
*** WARNING: Unable to verify timestamp for win32k.sys
KEY_VALUES_STRING: 1
Key : Analysis.CPU.mSec
Value: 5827
Key : Analysis.DebugAnalysisManager
Value: Create
Key : Analysis.Elapsed.mSec
Value: 12577
Key : Analysis.Init.CPU.mSec
Value: 1030
Key : Analysis.Init.Elapsed.mSec
Value: 3959
Key : Analysis.Memory.CommitPeak.Mb
Value: 73
Key : WER.OS.Branch
Value: vb_release
Key : WER.OS.Timestamp
Value: 2019-12-06T14:06:00Z
Key : WER.OS.Version
Value: 10.0.19041.1
BUGCHECK_CODE: 7f
BUGCHECK_P1: 8
BUGCHECK_P2: fffff80727f2ce50
BUGCHECK_P3: fffff80727f12000
BUGCHECK_P4: fffff80720d10dde
TRAP_FRAME: fffff80727f2ce50 -- (.trap 0xfffff80727f2ce50)
NOTE: The trap frame does not contain all registers.
Some register values may be zeroed or incorrect.
rax=0000000000000000 rbx=0000000000000000 rcx=fffff807299ea338
rdx=fffff80729980000 rsi=0000000000000000 rdi=0000000000000000
rip=fffff80720d10dde rsp=fffff80727f12000 rbp=fffff80727f120c0
r8=ffffac06885793c8 r9=0000000000000001 r10=0000000000000001
r11=ffffc1fbb2a00000 r12=0000000000000000 r13=0000000000000000
r14=0000000000000000 r15=0000000000000000
iopl=0 nv up ei pl nz na pe nc
nt!KiAcquireSpinLockInstrumented+0x12:
fffff807`20d10dde 4157 push r15
Resetting default scope
BLACKBOXBSD: 1 (!blackboxbsd)
BLACKBOXNTFS: 1 (!blackboxntfs)
BLACKBOXPNP: 1 (!blackboxpnp)
BLACKBOXWINLOGON: 1
CUSTOMER_CRASH_COUNT: 1
PROCESS_NAME: System
DPC_STACK_BASE: FFFFF80727F17FB0
STACK_TEXT:
fffff807`27f2cd08 fffff807`20c07d69 : 00000000`0000007f 00000000`00000008 fffff807`27f2ce50 fffff807`27f12000 : nt!KeBugCheckEx
fffff807`27f2cd10 fffff807`20c02b83 : 00000000`00000000 00000000`00000000 00000000`00000000 00000000`00000000 : nt!KiBugCheckDispatch+0x69
fffff807`27f2ce50 fffff807`20d10dde : fffff807`299d0610 ffffac06`88579200 fffff807`20a77403 fffff807`299ea338 : nt!KiDoubleFaultAbort+0x2c3
fffff807`27f12000 fffff807`20a77403 : fffff807`299ea338 fffff807`27f120c0 ffffac06`885793c8 00000000`00000000 : nt!KiAcquireSpinLockInstrumented+0x12
fffff807`27f12018 fffff807`299cf9a7 : 00000000`00000000 00000000`00000000 00000000`00000000 00000000`00000000 : nt!KeAcquireSpinLockAtDpcLevel+0x63
fffff807`27f12048 00000000`00000000 : 00000000`00000000 00000000`00000000 00000000`00000000 00000000`00000000 : vgk+0x4f9a7
SYMBOL_NAME: vgk+4f9a7
MODULE_NAME: vgk
IMAGE_NAME: vgk.sys
STACK_COMMAND: .thread ; .cxr ; kb
BUCKET_ID_FUNC_OFFSET: 4f9a7
FAILURE_BUCKET_ID: 0x7f_8_vgk!unknown_function
OS_VERSION: 10.0.19041.1
BUILDLAB_STR: vb_release
OSPLATFORM_TYPE: x64
OSNAME: Windows 10
FAILURE_ID_HASH: {f193a86d-725d-78d9-0658-b663a375a755}
Followup: MachineOwner
---------
