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  • Blog Post: Determining The Interrupt Line For A Particular PCI-E Slot

    Hi debuggers, this is Graham McIntyre again. These days I’m working more closely with hardware so I thought I’d share some hardware related debugging tips.  I recently debugged an issue where a PCI-E storage device failed to work after hot swapping it from one slot to another slot on the system...
  • Blog Post: Interpreting a WHEA error for a MCA fault

    Howdy fellow debuggers! This is Graham McIntyre, I am an Escalation Engineer in Platforms Global Escalation Services.   We get questions from time to time from customers who experience a WHEA bugcheck 0x124, or system event, for help in interpreting the error record. The information applies to Windows...
  • Blog Post: Data Execution Protection in Action

    Hello, my name is Graham, and I’m an escalation engineer on the Platforms Global Escalation Team. I recently worked a case where a group of Windows XP machines were hitting a bugcheck on boot, error 0xC000021A . This error occurs when a critical usermode process such as winlogon or csrss crashes. I had...
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