> I went through the manual again and I think you are right. I'll run this
> patch through our regression tests so as to make sure nothing break,
> though it is surprising that no one experienced this problem before. This
> might also mean that our regression tests do not actually make use of this
> instruction. Can you provide more details about where you found this code
> snippet?
> 
> --
> Nilay

I think it was not noted before because this instruction is rarely used since 
nobody uses segmentation any more. In this case its just used as a hack to 
reload the CS register. 

The code snippet is part of the Fiasco.OC kernel I'm trying to run on gem5 
(http://os.inf.tu-dresden.de/fiasco/). If you want to have a closer look at the 
code, it's located in src/boot/amd64/boot_cpu.cc.

Thanks
Christian
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