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SubjectRe: Compat 32-bit syscall entry from 64-bit task!?
On 01/18/2012 01:04 PM, H. Peter Anvin wrote:
> On 01/18/2012 01:01 PM, Linus Torvalds wrote:
>> On Wed, Jan 18, 2012 at 12:55 PM, H. Peter Anvin <hpa@zytor.com> wrote:
>>>
>>> If we're going to use bits in an existing register field I would be
>>> happier if we used bits [31:16] of CS, which are unlikely to ever be
>>> used for anything.
>>
>> See my note about that: I would have preferred CS or ORIG_AX myself,
>> but that breaks existing binaries. So that isn't really an option.
>>
>
> Fair enough. Sigh. I still think an actual pseudo-register would be
> better.
>

Roland, could you refresh my memory what your objection to this was?

-hpa



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