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Re: Testing Xen. Some quick questions.



On Thu, 2006-02-09 at 01:20 +0100, Jos Vos wrote:
> On Thu, Feb 09, 2006 at 01:06:15AM +0100, Paul Wouters wrote:
> > mv /mnt/lib/tls /mnt/lib/tls-disabled
> 
> Unless you use a glibc compiled with "-mno-tls-direct-seg-refs"
> (added to BuildFlags in the glibc spec file), recommended, AFAIK.
> B.t.w., what are the drawbacks of this?

You lose decent threading (NPTL).  Also, you can't do this with fc5 as
glibc is always built for NPTL.  But, there's the nosegneg glibc
binaries included which get used automatically with Xen kernels so that
you can get TLS without the downsides.  This should work on FC4, too

Jeremy


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