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

Oren Laadan orenl at cs.columbia.edu
Wed Nov 25 12:32:40 PST 2009

Serge E. Hallyn wrote:
> 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

Excellent. Then I'll change the order for v19-rc2.



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