Re: [BLACKBOX] Illegal Memory Access with Windows 7 - Update

From: [at]} <Wojtek>
Date: Fri, 16 Aug 2013 10:05:57 -0400

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> Good allocations 4907
> Failed allocations 97493

It means that memory allocation succeeds in 5% of the cases. Anybody knows
why it fails in the remaining 95%? What conditions are causing the
allocation to either fail or succeed?

W.



> Maximum allocation 1608641506
>  
> Windows 8 - 64 as admin:
> Iteration 97
> Iteration 98
> Iteration 99
> Iteration 100
> Good allocations 4907
> Failed allocations 97493
> Maximum allocation 1608641506
>
> Regards
> Philipp
>  
>  
>  
> ________________________________
> From: "Campbell, Robert (Selex ES, UK)" <robert.d.campbell{([at]})nowhere.xy
> To: BLACKBOX{([at]})nowhere.xy
> Sent: Thursday, 15 August 2013 10:07 PM
> Subject: [BLACKBOX] Illegal Memory Access with Windows 7 - Update
>
>
>
>
> I have just returned to this issue after being busy on other topics ….
>
> I have installed the patches previously discussed, and no longer
> experience the avalanches of low-level trap windows.
>
> However, under Windows 7 (64 bit), when my application tries to allocate
> new Heap memory there is a limit. When the limit is exceeded a NIL
> Pointer is returned, which is detected in the usual way, by opening a
> single Trap Window with active blue diamonds.  Ok so far.
>
> But the limit seems to be about 802 million bytes.
>
> When I copy the entire BlackBox directory, with NO changes, back to XP
> (64-bit), the limit is over 1590 million bytes; TWICE as much.
>
> I shall try to create a  (*simple*) test programme to see if it behaves
> in the same way.
>
>
> Selex ES Ltd
> Registered Office: Sigma House, Christopher Martin Road, Basildon, Essex
> SS14 3EL
> A company registered in England & Wales.  Company no. 02426132
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Received on Fri Aug 16 2013 - 16:05:57 UTC