Re: Code Alignment Problem

Tech-Archive recommends: Repair Windows Errors & Optimize Windows Performance

From: cristalink (cristalink_at_nospam.nospam)
Date: 02/04/05 

Date: Sat, 5 Feb 2005 11:19:23 +1300

You were clear enough. A small change in your source code may cause
significant changes in the assembly output, which in turn may cause a bug to
show up.

I also mentioned the possibility of a timing problem. Add
KeDelayExecutionThread with a zero wait interval before your code that
accesses the file system. Check if your code fails. Now increase the
interval to say 5 seconds and see what happens. 

-- 
http://www.firestreamer.com - NTBackup to DVD and DV
"Ken Allen" <kendrhyd@sympatico.ca> wrote in message
news:utnaE5vCFHA.2756@TK2MSFTNGP12.phx.gbl...
> cristalink wrote:
> > The environment does not really matter. The code generated by the
compiler
> > is substantially different in debug and release modes. Most likely you
have
> > a bug in your code, such as an uninitialized variable etc. There's a
chance
> > you encountered a bug in the compiler or a timing problem.
> >
> > Review your code. Run Prefast from the latest DDK on your sources. Try
> > Driver Verifier. Usually, you need to understand the assembly code to
track
> > down such a bug. If you cannot read assembly code, you better hire an
> > expert.
> >
>
> Perhaps I was not clear -- the ability to make the problem disappear and
> reappear by the addition and removal of debug code exists in the debug
> build only. IN one debug build the problem will exist; if I add some
> additional statements, the problem does not manifest itself!
>
> -Ken

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