Re: [MiNT] Qfunk bug found? (fwd)

[Mario Becroft <mb@tos.pl.net>]

On Sun, 16 May 1999, kellis wrote:

> I was playing around with MiNTsetter CPU caches.
> 
> Then I noticed that my screen was all messed up If the cache:
> "Data Write Allocate" was off.
[...]
> But then, I was talking to Lonny Pursel (airc developer) who has a TT with
> nvdi 5.1, crazydot g.card and latest official miint kernel.
> I asked him to see if the vdi would be messed up if this cache was off.
> 
> He tries so, and boom, big freeze.
> 
> Reboot, and tries again, same freeze.
[...]
> People, Please try to mess with the CPU caches with MiNTsetter (3.9) and
> latest Official Kernel.

Using mint setter version 3.9 and mint version 1.15.1 beta 1.1, the
symptoms are as described, about one second after disabling the "data
write allocate" option, the machine freezes, and only a reboot enables it
to operate again. I have just obtained the "official" version of freemint
1.15.1, but I have not yet tried disabling this cache with it. I want to
see, first, whether I still get the freezes and the crashes which were
bothering me before.

You may recall that I noted one of the programs which commonly crashed
under the new version was apache, however I'm not using that now that I
have ip masquerading, so it is will be less obvious if the problem is
still occuring. However I'm still using smail (the other problematic
program), so presumably if the problem is there smail will crash at some
point, so I will keep an eye on it. And then of course there was the
freezes.

I seem to remember that the recent official versions of freemint did not
show any messages when programs crashed. If this is still the case, is
there a way that I can turn this on without recompiling the kernel (I
don't really have room to do this at the moment as my hard disc is very
full).

-- 
+-----------------------------------------------------------------------+
| Mario Becroft                * Tariland, New Zealand Atari User Group |
| mb@tos.pl.net                * Atari Hardware Developments            |
| http://www.ak.planet.gen.nz/~mario/ * Atari Serial Mouse Interface    |
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