Re: [Xen-users] xen build and tls

[John Haxby <john.haxby@xxxxxxxxxx>]

Tim Post wrote:
> On Wed, 2008-11-26 at 10:31 +0000, John Haxby wrote:
>
>   
> > Also ignore people telling you that modprobe and init are statically 
> > linked on CentOS, they're not.
> >     
> Which version of CentOS? 
>
>   
The OP says "centos 5.2" which closely matches what I had.  And I had 
exactly the same experience: the OS seemed very sluggish and that was 
fixed when I added the nosegneg stuff.
> > But for anyone else reading this in the archives -- remember that all of 
> > the above is CentOS/RHEL/Fedora specific: different distros do things 
> > differently.
> >     
> And everyone uses RHEL/CentOS? Nobody uses Slackware? Search the
> archives and you will find that this was indeed the case. Or must I boot
> every distro since Xen 3.x and paste the output of ldd?
>
>   
No, of course not.   I do know, though that I had a lot of trouble 
tracking down the right solution to the problem for CentOS because the 
majority of the advice in the lists is to rename the /lib/tls directory 
or to get a special version of glibc.   I knew that wasn't the case 
because, as luck would have it, I had a Fedora 8 machine with Xen 
installed on it and I hadn't had any of the problems that I was seeing 
with my build on CentOS 5.2.   But, of course, the OP was (is) using 
CentOS 5.2.
> The fact remains, the warning is safe to ignore.
>   
That's quite true, although it is quite a nasty performance hit, at 
least on CentOS 5.2.
jch

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