![]() ![]() If we dump the device object from the second parameter: 0: kd> !devobj ffff800579662060Ĭannot read info offset from nt!ObpInfoMaskToOffset ![]() There doesn’t appear to be anything particularly interesting occurring apart from the watchdog object which is responsible for triggering the bugcheck. Let’s examine the call stack of the thread. DRIVER_POWER_STATE_FAILURE (9f)Ī driver has failed to complete a power IRP within a specific time.Īrg1: 000000000000000 5, The device failed to complete a directed power transition within the requiredĪrg2: ffff800579662060, Physical Device Object of the stackĪrg3: ffff80059215d8a0, The POP_FX_DEVICE objectĪs we can see from the first parameter, the driver has hasn’t completed a power IRP within the allotted amount of time. ![]() ![]() Here is another variation of the Stop 0x9F bugcheck which only occurs on Windows 8 and later operating systems, due to the introduction of the new power management framework for drivers. ![]()
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