Re: [ES40-developers] Warning: device structures clobbered

[Camiel V. <iam...@gm...>]

Hi David,

That sounds like a pretty nasty thing is happening somewhere, and I
sure don't like the sound of it. Perhaps we could use a debugger to
try and pinpoint where this comes from...

Camiel.

On Feb 18, 2008 5:14 PM, Hittner, David T. <dav...@ng...> wrote:
> I had added a pointer variable to the very beginning of the DEC21143
> object,
> and was trying to figure out why I was getting a crash in some queing
> code that I had added,
> which was dereferencing the pointer.
>
> It turns out that my pointer variable was getting clobbered somewhere
> during program execution;
> however, I had no code (other than the device constructor) which
> modified the variable.
>
> When I moved the pointer variable further down into the DEC21143
> structure, the crashes ceased.
> I didn't try to debug where the pointer was being overwritten, just the
> fact that it was being modified.
>
> It's possible that the base CPCIDevice stucture is being rewritten, and
> is overwriting
> into the derived device structure. I don't know if this has any
> relevance regarding various
> pci device errata that we have seen, but I thought I'd let everyone know
> that this happened.
>
> Dave
>
>
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