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Debugging user mode process exception from kd.

Ak87Ak87 Member Posts: 5

I'm trying to debug user mode ELAM service exception from kernel debugger (windbg).
I've tried to use gflags but I get huge amount of unrelated exceptions.
I've also tried to use .process but I don't get any exceptions from the user mode process.

How can I debug user mode process from kernel debugger, and receive it exceptions ?



  • rod_widdowsonrod_widdowson Member - All Emails Posts: 1,200

    You have set UMEX in bcd?

  • Ak87Ak87 Member Posts: 5
    edited October 2020

    UMEX? No.
    How do I set it ?
    I've used kdnet.

  • rod_widdowsonrod_widdowson Member - All Emails Posts: 1,200
    bcdedit /dbgsettings /?
        /noumex         If specified, this causes the kernel debugger to ignore any
                        user-mode exceptions.

    You'll not see any exceptions in windbg if that it set. As I recall it defaults on. After that I usually see all user mode exceptions (which can be a pain because you often get them from system services on restart.

    Beyond that I cannot help...

  • Ak87Ak87 Member Posts: 5

    Its on..

    Thanks anyway.

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