From mboxrd@z Thu Jan 1 00:00:00 1970 From: Francisco Barrera Subject: Re: Network problem after updates Date: Tue, 25 May 2010 17:04:56 +0200 Message-ID: <1274799896.11522.5.camel@portatil-1> References: <1274696442.6507.2.camel@portatil-1> Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============0186236113==" Return-path: In-Reply-To: <1274696442.6507.2.camel@portatil-1> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-users-bounces@lists.xensource.com Errors-To: xen-users-bounces@lists.xensource.com To: xen-tools@lists.xensource.com Cc: xen-devel@lists.xensource.com, xen-bugs@lists.xensource.com, xen-users@lists.xensource.com List-Id: xen-devel@lists.xenproject.org --===============0186236113== Content-Type: multipart/alternative; boundary="=-BvixEQ+qK9hiU4TI3kWV" --=-BvixEQ+qK9hiU4TI3kWV Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Can anybody help me with this problem? El lun, 24-05-2010 a las 12:20 +0200, Francisco Barrera escribi=C3=B3: > Hi all, >=20 > I've a serious problem with my dom0 xen installation, that's why I'm > blocked to daily work. > I come to describe my virtualization scenary and the arised problem. >=20 > Hardware is a Dell server with 3 physicall ethernet network cards and > 16 GB RAM. > Initially installed CentOS-5.2 with Xen-3.0.3 and 2.6.18-128.el5xen > kernel. > Dom0 with 7 domU paravirtuallized (they have CentOS like os also). > One domU is configured like a Firewall, using one of the physicall > NICs through pciback, that directly connect with the ISP modem-router. > Until here all worked ok and I was happy :) >=20 > Later, I was made the next updates through "yum update/upgrade" and > "yum install Virtualization": Xen 3.4.1 version, CentOS-5.4 and > 2.6.18-164.el5xen kernel. > Initially all worked fine, except some stuffs related to bridge name > (it came to xenbr0 to eth0). > The problem arise when from certain day, the network was freezed, > collapsed. > Anything of the domUs can answer to ping command, except dom0 that is > the only I can access via ssh. > Testing some issues, the network recovers if I shutdown the domU > Firewall. >=20 > I guess that the source of the problem must be pciback kernel module > or some incompatibillity with network card driver. > I've configured the xend-pci-permissive.sxp file to fix some messages > that appears in the boot of the dom0. >=20 > The conclusions that I've get analyzing the situation are the next: > - at the begining, Firewall works ok since it's overloaded by net > traffic > - from this moment, exactly 1 hour later from boot/reboot of dom0, the > network is blocked...always > - once the network is blocked, if I've shutdown the Firewall, the > network recovers > - when much time the network is blocked, more time the Firewall takes > to shutdown >=20 > Any suggestion? > Thanks in advance. >=20 >=20 >=20 >=20 > _______________________________________________ > Xen-users mailing list > Xen-users@lists.xensource.com > http://lists.xensource.com/xen-users -------------------------------------------- empelt Francisco Barrera M=C3=B3vil - +34 659253221 francisco.barrera@empelt.es http://www.empelt.es ________________________________________________________________________ Antes de imprimir este e-mail piense en su responsabilidad compromiso con el medio ambiente AVISO LEGAL Este mensaje y los documentos anexos que pudiera incluir se dirige exclusivamente a su/s destinatario/s y puede contener informaci=C3=B3n privilegiada o confidencial. 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Your e-mail and personal information can be included in a file for treatment. In any moment you can exercise their rigths of access, rectification, cancellation and oposition by sending and e-mail or written communication. --=-BvixEQ+qK9hiU4TI3kWV Content-Type: text/html; charset="utf-8" Content-Transfer-Encoding: 7bit Can anybody help me with this problem?


El lun, 24-05-2010 a las 12:20 +0200, Francisco Barrera escribió:
Hi all,

I've a serious problem with my dom0 xen installation, that's why I'm blocked to daily work.
I come to describe my virtualization scenary and the arised problem.

Hardware is a Dell server with 3 physicall ethernet network cards and 16 GB RAM.
Initially installed CentOS-5.2 with Xen-3.0.3 and 2.6.18-128.el5xen kernel.
Dom0 with 7 domU paravirtuallized (they have CentOS like os also).
One domU is configured like a Firewall, using one of the physicall NICs through pciback, that directly connect with the ISP modem-router.
Until here all worked ok and I was happy :)

Later, I was made the next updates through "yum update/upgrade" and "yum install Virtualization": Xen 3.4.1 version, CentOS-5.4 and 2.6.18-164.el5xen kernel.
Initially all worked fine, except some stuffs related to bridge name (it came to xenbr0 to eth0).
The problem arise when from certain day, the network was freezed, collapsed.
Anything of the domUs can answer to ping command, except dom0 that is the only I can access via ssh.
Testing some issues, the network recovers if I shutdown the domU Firewall.

I guess that the source of the problem must be pciback kernel module or some incompatibillity with network card driver.
I've configured the xend-pci-permissive.sxp file to fix some messages that appears in the boot of the dom0.

The conclusions that I've get analyzing the situation are the next:
- at the begining, Firewall works ok since it's overloaded by net traffic
- from this moment, exactly 1 hour later from boot/reboot of dom0, the network is blocked...always
- once the network is blocked, if I've shutdown the Firewall, the network recovers
- when much time the network is blocked, more time the Firewall takes to shutdown

Any suggestion?
Thanks in advance.



 
_______________________________________________
Xen-users mailing list
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--------------------------------------------
empelt
Francisco Barrera

Móvil - +34 659253221
francisco.barrera@empelt.es
http://www.empelt.es






Antes de imprimir este e-mail piense en su responsabilidad compromiso con el medio ambiente

AVISO LEGAL
Este mensaje y los documentos anexos que pudiera incluir se dirige exclusivamente a su/s destinatario/s y puede contener información privilegiada o confidencial. Si no es ud. el destinatario del mensaje, le rogamos que lo comunique inmediatamente al remitente y proceda a su destrucción. La utilización, grabación, divulgación, copia o cualquier otro uso de la información sin el consentimiento de EMPELT está prohibida en virtud de la legislación vigente.

EMPELT cumple la Ley Orgánica 15/99 de 14 de Diciembre de Protección de Datos de Carácter Personal. Su e-mail y datos personales pueden estar incluidos en un fichero para su tratamiento. En cualquier momento puede ejercer sus derechos de acceso, rectificación, cancelación y oposición, mediante el envío de un e-mail o comunicación por escrito.




Before printing think about your responsability and commitment with the environment

DISCLAIMER
This message and all its attached documents is intended exclusively for its addressee(s) and may contain information that is confidential and protected by a professional privilege or whose disclosure is prohibited by law. If this message has been received by mistake, please we require to notify the sender immediately via e-mail and delete it. Any dissemination, copy, disclosure or, in any other way, using any of the information without the EMPELT consent is strictly prohibited by law.

EMPELT meets the Organica Law 15/99 of December 14 for the Protection of Personal Data. Your e-mail and personal information can be included in a file for treatment. In any moment you can exercise their rigths of access, rectification, cancellation and oposition by sending and e-mail or written communication.
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