[Devel] Re: [PATCH RFC] powerpc: catch 32/64bit mix

[Serge E. Hallyn]

Quoting Oren Laadan (orenl at cs.columbia.edu):
> 
> I can't recall a convincing reason why restore_{thread,cpu}() should
> run so late, or in particular after restore_task_objs().
> 
> I think the original motivation was to avoid the point-of-no-return
> at a very early stage. However this is only useful for self-restart.
> 
> If we ever want self-restart to fail gracefully should something go
> wrong, we should be prepared to undo any changes to the process -
> on the error path. While not beyond reach, it isn't a top priority.
> 
> Does calling restore_{thread,cpu}() earlier solve the problem ?

Yes, it does.

> BTW, this is also relevant for x86-64...

and also 31-bit s390

-serge
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