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

On 23 Jun 2006 Jeremy C B Nicoll <Jeremy@xxxxxxxxxxxxxxxx> wrote:
> Has everyone having this problem been running !Variations?  Maybe it's
> just a bug in that app - presumably some indirected memory access
> targeting the wrong place.  If for example the code was trying to
> manipulate contents of a DA and an operation went past the end of the
> DA into some adjacent area of memory, might that have this effect?

No. This is application memory of the pinboard which is affected. There are
only three likely causes, order of decreasing likelihood matching known
events:-

1) Incorrect page mapping while LTS is active
2) Corruption by priveledged code, either OS or module SVC code while the
   pinboard task is paged in
3) Corruption by another task using Wimp_TransferBlock

Cheers
---Dave

-- 
____________________________________________________________________________

  David J. Ruck    Phone: +44- (0)7974 108301    Email: druck@xxxxxxxxxxxx
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