About INT 1

WINDBG
1

Hello All,

How to intercept INT 1? What should change in WinDbg settings ?

–
Best regards,
Al

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2

Try setting a breakpoint in the interrupt handler. I just looked at the
IDT (I use !kdex2x86.idt to dump the full table) and it is still
nt!KiTrap01 (the interrupt routines are pretty easy - KiTrapXX in
general.)

So set a breakpoint in KiTrap01 (“bp KiTrap01”) and it should stop when
you hit the INT 1 handler. If it throws an exception, you can also
change the debugger to stop on the exception instead (that’s how it
catches breakpoints, for example.) See the “sx*” command documentation
for the debugger on how to set it to catch specific exceptions.

Regards,

Tony

Tony Mason
Consulting Partner
OSR Open Systems Resources, Inc.
http://www.osr.com

-----Original Message-----
From: xxxxx@lists.osr.com
[mailto:xxxxx@lists.osr.com] On Behalf Of Al Shatilo
Sent: Thursday, March 25, 2004 6:31 AM
To: Kernel Debugging Interest List
Subject: [windbg] About INT 1

Hello All,

How to intercept INT 1? What should change in WinDbg settings ?

–
Best regards,
Al

Do you Yahoo!?
Yahoo! Finance Tax Center - File online. File on time.
http://taxes.yahoo.com/filing.html

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