[Coco] 2 Meg memory problem

[Christopher R. Hawks]

On Wed, 1 Jan 2020 01:04:50 +0000 (UTC)
Mark Marlette <mmarlette at frontiernet.net> wrote:

> Thanks Henry!
> Mark Marlette
>  http://www.cloud9tech.com
> mark at cloud9tech.com
> mark at gamecamaddict.com 
> 
>     On Tuesday, December 31, 2019, 06:44:44 PM CST, rietveld rietveld
> <rietveldh at hotmail.com> wrote: 
>  I have the cloud9 2mb test. Dsk on my desktop. I just sent you a copy
> 
> Sent from my BlackBerry
>   Original Message
> From: Christopher R. Hawks
> Sent: Tuesday, December 31, 2019 7:37 PM
> To: coco at maltedmedia.com
> Reply To: CoCoList for Color Computer Enthusiasts
> Subject: Re: [Coco] 2 Meg memory problem
> 
> 
> On Wed, 1 Jan 2020 00:18:17 +0000 (UTC)
> Mark Marlette <mmarlette at frontiernet.net> wrote:
> 
> > Chris,
> > Using your example, my current setup is EOU beta3.
> > No issues
> > using wcreate /w3 -s=8 0 0 40 24 1 0 0 shell i=/w3&
> > can clear and do a dir and it operates fine
> > do the above but with /w4 and -s=6
> > same works fine here.
> > Have you run stress12.bin to verify memory / mmu integrity?
> > Regards,
> > Mark Marlette
> >  http://www.cloud9tech.com
> > mark at cloud9tech.com
> > mark at gamecamaddict.com
> >
> >    On Tuesday, December 31, 2019, 05:50:26 PM CST, Christopher R.
> > Hawks <chawks at dls.net> wrote:
> >  On Tue, 31 Dec 2019 21:46:40 +0000 (UTC)
> > Mark Marlette <mmarlette at frontiernet.net> wrote:
> >
> > > Chris
> > > Can you please provide the exact test case and I will try and
> > > duplicate it here. Thanks
> > > Mark
> > >
> > > Sent from Frontier Yahoo Mail on Android
> > > 
> > >  On Tue, Dec 31, 2019 at 3:10 PM, Christopher R.
> > > Hawks<chawks at dls.net> wrote: I'm seeing a strange problem with my
> > > CoCo3 running a Cloud9 2 Meg memory board.
> > >
> > >    When I searched online for similar problems, I found a message
> > > in the CoCo facebook group describing something similar. BUT, the
> > > problem I'm seeing is only with screen types 7 and 8 running under
> > > NitrOS9 (at double speed). (NitrOS-9 updated yesterday) I can
> > > create and use screens up to type 6 (16k of memory), but screen
> > > types 7 and 8 (32k of memory) crash the system. Even a
> > > 'wcreate /w1 -s=8 0 0 40 24 1 0 0' from the command line crashes
> > > the system.
> > >
> > >    If I POKE &HFF9B,&H80 (disable 2 meg) before booting, the
> > >bigger
> > > screens work fine.
> > >
> > >    Any ideas, suggestions, or guesses? I need 320x240 in 8 colors.
> > >
> > > Thanks!!
> > >
> > > Christopher R. Hawks
> > > HAWKSoft
> >
> > Mark (and all):
> >
> >    Simplest case:
> >
> > 1) boot NitrOS-9
> > 2) enter 'wcreate /w1 -s=8 0 0 40 24 1 0 0' at the command prompt.
> > 3) NitrOS-9 crashes.
> >
> >    If you use -s=6 or less for the screen type, NitrOS-9 doesn't
> > crash and you can start a shell (or program) in the window named
> > (/w1).
> >
> >    Happens with an old version of NitrOS-9 (3.3.0 beta from 2014),
> > the latest HG pull of NitrOS-9, and the latest EOU (use /w3, /w1
> > and /w2 are already in use).
> >
> >
> > Christopher R. Hawks
> > HAWKSoft
> 
>     I'm reasonably sure that I did. I'd run it again if I knew where
> to find it. It took 2 weeks of looking in boxes to find my SDC after
> the move. Is it available somewhere?
> 
> 
> Christopher R. Hawks
> HAWKSoft
> --

stress12.bin has run thru the memory 10 times
(2048KB RAM, 00020MB Tested, 00000 Errors)

    Anything else to check??


Christopher R. Hawks
HAWKSoft
-- 
Commit suicide. A hundred thousand lemmings can't be wrong.
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