WARNING - OLD ARCHIVES

This is an archived copy of the Xen.org mailing list, which we have preserved to ensure that existing links to archives are not broken. The live archive, which contains the latest emails, can be found at http://lists.xen.org/
   
 
 
Xen 
 
Home Products Support Community News
 
   
 

xen-users

Re: [Xen-users] xenU/glibc/nptl on RHEL 4/Centos 4.1

To: Ted Kaczmarek <tedkaz@xxxxxxxxxxxxx>
Subject: Re: [Xen-users] xenU/glibc/nptl on RHEL 4/Centos 4.1
From: The Smoking Man <datashark@xxxxxxxxx>
Date: Wed, 12 Oct 2005 01:32:36 +0100
Cc: xen users mailing list <xen-users@xxxxxxxxxxxxxxxxxxx>, Jeb Campbell <jebc@xxxxxxxxxxxxxxx>
Delivery-date: Wed, 12 Oct 2005 00:30:02 +0000
Domainkey-signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:references; b=pIiZJOREud5TyJ5+p6VygoZ3R8wkcb1qbMJN8uVLADx9paAkqGWmNT+R1SygD50ph6RbyxU3QTYzkQEnIYfyix2yv5eGkg2W5vUQuEIsRlFvQgYIHN0au0xPSWaS8jkNthAh8SR2cGsSTi18l+8n5vSaRdDJIlSoJdJex6WVJag=
Envelope-to: www-data@xxxxxxxxxxxxxxxxxxx
In-reply-to: <1129076835.16017.65.camel@xxxxxxxxxxxxxxxxxxxxxx>
List-help: <mailto:xen-users-request@lists.xensource.com?subject=help>
List-id: Xen user discussion <xen-users.lists.xensource.com>
List-post: <mailto:xen-users@lists.xensource.com>
List-subscribe: <http://lists.xensource.com/cgi-bin/mailman/listinfo/xen-users>, <mailto:xen-users-request@lists.xensource.com?subject=subscribe>
List-unsubscribe: <http://lists.xensource.com/cgi-bin/mailman/listinfo/xen-users>, <mailto:xen-users-request@lists.xensource.com?subject=unsubscribe>
References: <b84baaac0510110603y669d2c3bi7a42ceb50e5326f3@xxxxxxxxxxxxxx> <434BC1C4.9070604@xxxxxxxxxxxxxxx> <1129076835.16017.65.camel@xxxxxxxxxxxxxxxxxxxxxx>
Sender: xen-users-bounces@xxxxxxxxxxxxxxxxxxx
The jailtime.org images disable NPTL  (by moving /lib/tls –> /lib/tls.disabled). Some apps b0rk with this. With NPTL enabled xenU are slower *except* if the glibc is recompiled with a special gcc flag (-mno-tls-direct-seg-refs). Centos/RHEL is no gentoo and rebuilding glibc proved to be tricky, so i 'm  in search of a kinda soul with  the same needs as i am that was able to rebuild glibc (with -mno-tls-direct-seg-refs) and kinda enough to share the new rpms...


All the Best...

António.

On 10/12/05, Ted Kaczmarek <tedkaz@xxxxxxxxxxxxx> wrote:
On Tue, 2005-10-11 at 08:44 -0500, Jeb Campbell wrote:
> The Smoking Man wrote:
> > Anyone have rebuilt glibc (x86/32) rpms for RHEL 4/Centos 4.1 with the
> > gcc's -mno-tls-direct-seg-refs flag available around ? (to avoid
> > performance drop on top of a NPTL based Dom0). Unfortunatelly we have
> > around a closed source app that breaks if i disable NPTL...
>
> I would be willing to test if you can get a hold of them.  Too busy to
> rebuild myself (and haven't used rpms in a while).
>
> As a side note, I used the great images at http://jailtime.org to
> jumpstart a centos 4.1 and zimbra install, but had all kinds of problems
> until I re-enabled /lib/tls.  I would love to see if this would help and
> get rid of all the warning messages from xen.
>

Always nice when someone beats you to a todo list item :-)

With the jailtime images what do you mean by renabling tls?
I have been using them with no issues( that I am aware of yet ) and the
tls libs are moved in my setup.

Regards,
Ted


_______________________________________________
Xen-users mailing list
Xen-users@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-users

_______________________________________________
Xen-users mailing list
Xen-users@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-users