[OpenBIOS] [PATCH 1/2] Fix NULL-dereferencing in sunparts_open

Blue Swirl blauwirbel at gmail.com
Sat Apr 6 22:25:13 CEST 2013

On Sat, Apr 6, 2013 at 6:05 PM, Mark Cave-Ayland
<mark.cave-ayland at ilande.co.uk> wrote:
> On 06/04/13 18:42, Artyom Tarasenko wrote:
>>> Thanks - this is a similar bug to the one that was in mac-parts.c so I've
>>> applied it.
>> I've found it after applying the patch preventing mapping of the page
>> 0 and looking what breaks.
>> It may be a good idea not to map the page 0 on other architectures too.
> Yeah I'd be quite tempted to make this the default (and it's probably why
> load-base is often set to 0x4000 so page 0 can be unmapped).
> Blue - what do you think?

IIRC I actually used a similar change earlier to find some bugs, but I
didn't make it permanent because some of the bugs were in Forth and we
had no debugger for it at that time. Probably now it's OK.

> ATB,
> Mark.
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