Re: [Xen-devel] xen and tls (fwd)

[Himanshu Raj <rhim@xxxxxxxxxxxxx>]

I believe it is due to the use of both +ve and -ve offsets by TLS. It becomes
a nightmare to manage it with segmentation, and system has to emulate -ve
offsets by converting to +ve ones etc. I am still learning more on this.

Himanshu
On Mon, Feb 14, 2005 at 10:05:00AM -0600, Anthony Liguori wrote:
> Ronald G. Minnich wrote:
> 
> >I forget the reason, can somebody fill me in?
> > 
> >
> http://www.cl.cam.ac.uk/Research/SRG/netos/xen/readmes/user/user.html#SECTION02243000000000000000
> 
> It has to do with segmentation.  I'm not sure exactly what the problem 
> is although I can imagine a few problems that could occur with 
> segmentation..  I'd be curious to know the exact reason myself.
> 
> Regards,
> 
> >thanks
> >
> >ron
> >
> >---------- Forwarded message ----------
> >Date: Mon, 14 Feb 2005 10:50:56 -0500
> >To: rminnich@xxxxxxxx
> >Subject: xen and tls
> >
> >do you know why, when i booted xen, i was told to
> >mv /lib/tls /lib/tls.disabled
> >otherwise it would be very slow and may cause instability
> >(i.e. programmes would fault)?
> >
> >
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> 
> -- 
> Anthony Liguori
> anthony@xxxxxxxxxxxxx
> 
> 
> 
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Himanshu Raj
PhD Student, GaTech (www.cc.gatech.edu/~rhim)
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