how to get memory dump after blue screen

Question

I'm getting a lovely BSOD on bootup (STOP: 0x0000007E) from a driver I'm writing, and would like to load up the memory dump for analysis. However, it's not getting dumped anywhere. Everything is setup correctly in the Startup and Recovery settings, but I get no dump file, and nothing in the event log stating a dump has taken place. It looks like a dump is not even occurring...

I know the exact line of code causing it (a call to IoAttachDevice()), but am not sure why, and would like to view the DbgPrint output to see where exactly it's failing. Could Windows possibly be crashing before the dumping functionality is set up? If so, how do I get access to the state of the machine when the failure occurs?

UPDATE: Other possibly useful information: I'm running Windows XP through VirtualBox on a Linux host.

Answer 1

I don't know why you're not getting a dump file, but if you have ready access to the machine, attach a kernel debugger to it an repro the error - you'll be left with the machine sitting in the debugger, ready to go (you can have the debugger produce the dumpfile for you if you want to debug offline as well).

Answer 2

Right-click on "my computer" select "Advanced", under "startup and recovery" click "settings". select "kernel memory dump" or "complete memory dump".