About once a week my laptop crashes with a bugcheck 9F when restoring from hibernate.
I have examined the dumps with windbg and they all seem related to hyper-V
The FAULTING_MODULE is always
vmswitch and the bugcheck analysis looks like
DRIVER_POWER_STATE_FAILURE (9f) A driver has failed to complete a power IRP within a specific time.
Arg1: 0000000000000003, A device object has been blocking an Irp for too long a time
Arg2: ffffe0000061cb70, Physical Device Object of the stack
Arg3: fffff80105328840, nt!TRIAGE_9F_POWER on Win7 and higher, otherwise the Functional Device Object of the stack
Arg4: ffffe0000bac02c0, The blocked IRP
I sometimes use Hyper-V but no VMs are running when the computer is hibernated.
The Dell laptop runs Windows 8.1 and all updates are installed.
I can live with a crash once a week but if there is a simple solution I'd like to try it.