[iyonix-support] Re: Lazy Task Swapping on Iyonix/RISC OS 5.11

On Sun 25 Jun, Adrian Lees wrote:
> 
> On Sun, 25 Jun 2006 you wrote:
> 
> > In article <449E72D6.8000902@xxxxxx>,
> >    David O'Shea <djkoshea@xxxxxx> wrote:
> > > Maybe a daft question, but have you tried turning on LTS again
> > > afterwards to see if the corruption re-appears?
> > 
> > No it doesn't reappear. I have turned it back on again, sometimes straight
> > away. Nothing visible happens and the backdrop is still restored.
> 
> Okay, that's worth knowing; and one thing I regret not thinking of on
> the single occasion that I've seen the problem.
> 
> Re comparing the corrupted pixels with the other applications'
> WimpSlots, I suspect that what's happening is the incorrectly mapped
> page(s) remain mapped in for all running applications, so it will
> appear in the saved application memory of all tasks that have been
> allocated a large enough wimpslot.
> 
> Note also that by increasing the WimpSlot of OvationPro to 3000KB
> it's possible that you've just moved the problem to a higher address,
> such that it..
> 
>      (i) it appears lower down on the screen

Rather than change the wimpslot to 3000Kb how about upping it from 1648K to
1656K!

If the backdrop corruption position is identifiable this could be useful info
 
>  This problem has never been reported on pre-Iyonix/RO5 machines,
>  what's changed (if anything)?

I believe it is only used in RISC OS 4.02 and later and then only when Rev T
StrongARM is detected!
Given the forking of the OS before then many other things are different I
believe.


Chris Evans

-- 
CJE Micro's / 4D                'RISC OS Specialists'
Telephone: 01903 523222             Fax: 01903 523679
chris@xxxxxxxxxxxxxxx     http://www.cjemicros.co.uk/
78 Brighton Road, Worthing, West Sussex,     BN11 2EN
The most beautiful thing anyone can wear, is a smile!


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