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

[Hittner, D. T. <dav...@ng...>]

Drat. It did go away after a 'Rebuild'.
I guess Visual Studio is a bit too overoptimistic with the 'Build'
command.

Sorry for wasting time..

> -----Original Message-----
> From: es4...@li... 
> [mailto:es4...@li...] On 
> Behalf Of Camiel Vanderhoeven
> Sent: Monday, February 18, 2008 11:24 AM
> To: ES40 Developer Discussions
> Subject: Re: [ES40-developers] Warning: device structures clobbered
> 
> Right, that could be it; I have seen weird unexplainable 
> things on both Linux and Windows (with Visual C++) that went 
> away after a make clean or a full rebuild. David, could you 
> try that and let us know?
> 
> Camiel.
> 
> On Feb 18, 2008 5:17 PM, Brian Wheeler <bdw...@in...> wrote:
> > I've seen similar things (like segfaults and random crashes) after 
> > rebuilding part of the binary if the .h files had changed and other 
> > files that depended on them didn't get rebuilt.
> >
> > If you're on unix do a "make clean; make depend" and it shouldn't 
> > happen after that...
> >
> > Brian
> >
> >
> > On Mon, 2008-02-18 at 10:14 -0600, Hittner, David T. 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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