RE: Convert Physical -> Virtual address to set a bre ak p oint on it

What version of windbg are you running - I just tried this on a dump using
windbg 6.2.13.0 and it worked nicely (well, as nicely as !ptov ever does).

/simgr

-----Original Message-----
From: Monji Jabori [mailto:monji.jabori@hp.com]
Sent: Monday, September 15, 2003 12:31 PM
To: Kernel Debugging Interest List
Subject: [windbg] RE: Convert Physical -> Virtual address to set a break p
oint on it

Windbg won’t let me.
I run !process and get DirBase=00039000. I shave the lower 12 bits and get
39. I then run “!ptov 39”. I get the following:
kd> !ptov 39
c0000094 Exception in kdexts.ptov debugger extension.
PC: 01118128 VA: 7c8d8d00 R/W: 1003f Parameter: 00000000
If I try to run !vtop on a local address in the process, I keep getting
“kd> !vtop 0 80541f50, Cannot find HARDWARE_PTE”.
I load the kdexts.dll via !kdexts.load and it loads fine. I also tried an
older Windbg and failed the same way. I tried another unit and that failed
also. Can somebody point out the obvious??


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I tried this with Windbg 6.2.13.0 and I get the same error messages that you
are getting (!ptov and !vtop).

  • Steve -

-----Original Message-----
From: Monji Jabori [mailto:monji.jabori@hp.com]
Sent: Monday, September 15, 2003 12:31 PM
To: Kernel Debugging Interest List
Subject: [windbg] RE: Convert Physical -> Virtual address to set a break p
oint on it

Windbg won’t let me.
I run !process and get DirBase=00039000. I shave the lower 12 bits and get
39. I then run “!ptov 39”. I get the following:
kd> !ptov 39
c0000094 Exception in kdexts.ptov debugger extension.
PC: 01118128 VA: 7c8d8d00 R/W: 1003f Parameter: 00000000
If I try to run !vtop on a local address in the process, I keep getting
“kd> !vtop 0 80541f50, Cannot find HARDWARE_PTE”.
I load the kdexts.dll via !kdexts.load and it loads fine. I also tried an
older Windbg and failed the same way. I tried another unit and that failed
also. Can somebody point out the obvious??


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