Re: Finding cause of heap corruption

[Andreas Mohr]

On Wed, May 22, 2002 at 05:32:17PM +0200, Uwe Bonnes wrote:
> > > > > > "Uwe" == Uwe Bonnes  writes:
> Uwe> "invalid in-use arena magic" is an indicator for a corrupy
> Uwe> heap. Right?
>
> Uwe> On each RtlAllocateHeap(), the heap is checked. As the call to
> Uwe> RtlAllocateHeap() on line 133196 succeeds, the trashing must have
> Uwe> happend between line 133201 and 133203. Right?
>
> Looking I thinks we have some problem somewhere. Even running calc.exe on a
> clean tree I get 
> ( wine /dosc/win95/calc.exe  --debugmsg +relay,+snoop,+heap,+bitmap,+dib,+x11drv,+bitblt,+cursor > & /tmp/wine.debug"):

[...]
> 3756 warn:heap:HEAP_IsRealArena Heap 0x40ba0000: block 0x40790a42 is not inside heap
>                                                                   ^^^^^^^^^^^^^^^^^^ 

Note that it's called with the WARN case here only !!
Might be a problem, or maybe it isn't.