How to interpret bug code number 5 - Invalid Ke Process Attach a ttempt

Hi All,

As per the bug code 5, I find that the this could happen —

if the thd we are trying to attach is already attached to a
different process, or
if the thd is running a DPC.

Then the 4th arg says - a flag indicating whether the thread is
executing a DPC.

Here in 4th arg I get something like - ed427ff8. WHAT DOES IT MEAN ?
Should it be
zero if the thread is not executing a DPC ???