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Philippe Gerum kirjoitti:
Heikki Lindholm wrote:
Hello,
There is a problem in Fusion (PPC) that enabling ALTIVEC triggers. The
problem is that fusion uses _switch from Linux, which expects to have
"current" task (r2) in valid state. If I'm not horribly mistaken ---
also an option, I know next to nothing about Fusion --- "current" is
not valid when in other domains than root(=Linux). The attached patch
should fix the problem.
Ah. Ok, I definitely thought that r2 would not be altered while
switching domains. I'm going to test this patch asap (likely tomorrow)
and let you know of the outcome here. Thanks.
I didn't care trace exactly where r2 gets toasted, I'd guess the first
domain switch. I thought of this more generally: in a domain other than
Linux, r2 could be anything, so don't trust it there. One could, of
course, copy _switch function over to fusion and take out r2 references,
but that doesn't seem like worth the effort.
-- Heikki Lindholm
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