How to access member variables

ron.eddy

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Jun 16, 2008, 2:14:07 PM6/16/08

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I have a full crash dump and am currently in a thread within a class where I
would like to see the value of its member variables. When I do !clrstack I
get the following (editied to only contain the line of interest):

Child-SP RetAddr Call Site
000000000080ef60 000006427f67d4a2 AVOStartup.AVO.Main(System.String[])

I would like to get into the "AVOStartup.AVO" class and look at its member
variables! How can I accomplish this with WinDbg? I have tried all the
various !Dump* commands but maybe I am missing something fundamental here.
Thanks for your help!!!

Marc Sherman

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Jun 17, 2008, 9:23:52 AM6/17/08

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"ron.eddy" <ron....@discussions.microsoft.com> wrote in message
news:E9991A64-6D3F-4582...@microsoft.com...

Try setting a breakpoint with !bpmd in an instance method (I'm guessing
AVO.Main() is a static method). Once your breakpoint hits, try to find the
"this" reference. For x86, it's either at esp+8 or ecx. For x64, it's at
rcx. Try !do (dump object) on those locations.

Marc

ron.eddy

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Jun 17, 2008, 10:13:01 AM6/17/08

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I appreciate your advice, and I have wrote that into my little debugging
notebook (I am just learning the art of debugging) but in this case I don't
have the ability to breakpoint. This is a crash dump from a production
machine, and I want to see the state of AVOStartup.AVO if possible. I can
set a break point for the future and hope I get the same exception, but this
crash dump took many days to acquire due to the nature of the bug I am trying
to track down. So is there any way to access the variables in the dump I
have? If not I will definately go the breakpoint route.

Thanks!
--
Ron
.NET Developer

Marc Sherman

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Jun 17, 2008, 10:12:08 AM6/17/08

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"Marc Sherman" <masher...@yahoo.com> wrote in message
news:%231f5m1H...@TK2MSFTNGP06.phx.gbl...

Sorry, just realized you're faced with a crash dump and not doing live
debugging.

Marc

Marc Sherman

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Jun 17, 2008, 1:09:10 PM6/17/08

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"ron.eddy" <ron...@discussions.microsoft.com> wrote in message
news:7EC1828A-044C-48F2...@microsoft.com...

>I appreciate your advice, and I have wrote that into my little debugging
> notebook (I am just learning the art of debugging) but in this case I
> don't
> have the ability to breakpoint. This is a crash dump from a production
> machine, and I want to see the state of AVOStartup.AVO if possible. I can
> set a break point for the future and hope I get the same exception, but
> this
> crash dump took many days to acquire due to the nature of the bug I am
> trying
> to track down. So is there any way to access the variables in the dump I
> have? If not I will definately go the breakpoint route.

I don't know but this blog is a good resource for managed debugging with the
SOS extension:
http://blogs.msdn.com/tess/default.aspx

good luck,
Marc

Kjell Gunnar

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Jun 18, 2008, 4:52:25 AM6/18/08

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Since it's a class, it shuld be on the heap somewhere, maybe something
like this will work ?
!DumpHeap -type AVOStartup.AVO
and then
!do on the address displayed from the previous.

Regards
Kjell Gunnar

On Jun 16, 8:14 pm, ron.eddy <ron.e...@discussions.microsoft.com>
wrote: