Crash dump has multiple BugChecks

NTDEV
1

I’m trying to do postmortem debugging of a kernel crash. When I do !running -it the stack shows the following on two cores:

nt!KiFreezeTargetExecution
nt!KiPollFreezeExecutionEx
nt!KiPollFreezeExecution
nt!KiYieldWaitForDebugger
nt!KeBugCheck2
nt!KeBugCheckEx
nt!KiSystemServiceHandler
...
nt!HvlArm64SyntheticExceptionVector
...

and then one more core (at a slightly later time):

nt!KeBugCheck2
nt!KeBugCheckEx
nt!KiSystemServiceHandler
...
nt!HvlArm64SyntheticExceptionVector
...

How do you interpret what happened there with the multiple bug checks?

2

What was the bug check code? These are ARM64 machines. Does it crash on x64 machines as well?

3

It means that you crashed in multiple places in the time before the system found a debugger or generated a crash dump. They could be symptoms of the same problem, or independent issues. Ultimately one of these will be selected as ‘the’ exception record, but which one depends on CPU / thread timing and is not deterministic.