[Users] Bonding - VMs Network performance problem

Ricardo Esteves maverick.pt at gmail.com
Tue Jul 30 16:39:48 UTC 2013 

Hi Antoni,

The problem is LRO activated on bnx2x driver.

After the reboot the LRO comes activated, after reconfiguring the bond
the LRO is deactivated.

So i created /etc/modprobe.d/bnx2x.conf with: options bnx2x
disable_tpa=1

and everythink is ok now after reboot.

There was a previous bug open for RHEL5 about this problem
https://bugzilla.redhat.com/show_bug.cgi?id=518531 should i reopen this
for RHEL6?

This problem only happens when bnx2x is used with bonds... should this
be considered as a bug?

Best regards,
Ricardo Esteves.

-----Original Message-----
From: Antoni Segura Puimedon <asegurap at redhat.com>
To: Users at ovirt.org
Subject: Re: [Users] Bonding - VMs Network performance problem
Date: Tue, 30 Jul 2013 12:23:36 -0400 (EDT)


Hi Ricardo,

Thanks a lot for the extra and very relevant info. Could you please create a
bug in bugzilla so we can better track it?

Best,

Toni

----- Original Message -----
> From: "Ricardo Esteves" gmail.com>
> To: Users at ovirt.org
> Sent: Tuesday, July 30, 2013 5:58:44 PM
> Subject: Re: [Users] Bonding - VMs Network performance problem
> 
> Hi,
> 
> I also noticed this on /var/log/messages while the problem was happening (i
> was downloading a file in the VM from the web):
> 
> Jul 30 16:55:55 blade5 kernel: bond0.1: received packets cannot be forwarded
> while LRO is enabled
> Jul 30 16:55:56 blade5 kernel: bond0.1: received packets cannot be forwarded
> while LRO is enabled
> Jul 30 16:55:56 blade5 kernel: bond0.1: received packets cannot be forwarded
> while LRO is enabled
> Jul 30 16:55:56 blade5 kernel: bond0.1: received packets cannot be forwarded
> while LRO is enabled
> Jul 30 16:55:56 blade5 kernel: bond0.1: received packets cannot be forwarded
> while LRO is enabled
> Jul 30 16:55:56 blade5 kernel: bond0.1: received packets cannot be forwarded
> while LRO is enabled
> Jul 30 16:55:57 blade5 kernel: bond0.1: received packets cannot be forwarded
> while LRO is enabled
> Jul 30 16:55:57 blade5 kernel: bond0.1: received packets cannot be forwarded
> while LRO is enabled
> Jul 30 16:55:57 blade5 kernel: bond0.1: received packets cannot be forwarded
> while LRO is enabled
> Jul 30 16:55:57 blade5 kernel: bond0.1: received packets cannot be forwarded
> while LRO is enabled
> 
> Best regards,
> Ricardo Esteves.
> 
> -----Original Message-----
> From : Ricardo Esteves < maverick.pt at gmail.com >
> To : Users at ovirt.org
> Cc : Itamar Heim < iheim at redhat.com >, Mike Kolesnik < mkolesni at redhat.com >
> Subject : Re: [Users] Bonding - VMs Network performance problem
> Date : Tue, 30 Jul 2013 15:10:24 +0100
> 
> Good afternoon,
> 
> In attachment the result of vdsClient -s 0 getVdsCaps during problem and
> after problem resolved.
> 
> Best regards,
> Ricardo Esteves.
> 
> -----Original Message-----
> From : Mike Kolesnik < mkolesni at redhat.com >
> To : Ricardo Esteves < maverick.pt at gmail.com >
> Cc : Users at ovirt.org , Itamar Heim < iheim at redhat.com >
> Subject : Re: [Users] Bonding - VMs Network performance problem
> Date : Tue, 16 Jul 2013 10:01:31 -0400 (EDT)
> 
> ----- Original Message ----- > On 07/16/2013 04:09 PM, Ricardo Esteves wrote:
> > > Hi, > > > > Not really. > > > > I can resolve temporally, unconfiguring
> the bond and then configure it > > again. > > > > But when i reboot the
> server the problem comes back. > > can you compare the network configuration
> before and after you change it > the setup network? Perhaps you can send
> pastebin of a 'vdsClient 0 getVdsCaps' (or 'vdsClient -s 0 getVdsCaps' if
> the first doesn't work)
> from the host when the bond is slow, and one after you break and create it
> again?
> 
> if you don't have vdsClient command you can 'yum install vdsm-cli' and it
> should be available. > > > > > > > -----Original Message----- > > *From*:
> Itamar Heim < iheim at redhat.com > > <
> mailto:Itamar%20Heim%20%3ciheim at redhat.com %3e>> > > *To*: Ricardo Esteves <
> maverick.pt at gmail.com > > <
> mailto:Ricardo%20Esteves%20%3cmaverick.pt at gmail.com %3e>> > > *Subject*: Re:
> [Users] Bonding - VMs Network performance problem > > *Date*: Tue, 16 Jul
> 2013 15:38:10 +0300 > > > > On 07/01/2013 03:12 PM, Ricardo Esteves wrote: >
> >> Hi, > >> > >> Yes, i'm still experiencing this problem, in fact just
> happened a few > >> minutes ago. :) > >> > >> All MTUs are 1500. > > > > was
> this resolved? > > > >> > >> -----Original Message----- > >> *From*: Livnat
> Peer < lpeer at redhat.com < mailto:lpeer at redhat.com > > >> <
> mailto:Livnat%20Peer%20%3clpeer at redhat.com %3e>> > >> *To*: Ricardo Esteves
> < maverick.pt at gmail.com > >> < mailto:maverick.pt at gmail.com > > >> <
> mailto:Ricardo%20Esteves%20%3cmaverick.pt at gmail.com %3e>> > >> *Subject*:
> Re: [Users] Bonding - VMs Network performance problem > >> *Date*: Sun, 23
> Jun 2013 11:33:58 +0300 > >> > >> Hi Ricardo, > >> Are you still
> experiencing the problem described below? > >> Are you configuring MTU (to
> something other than default or 1500) for > >> one of the networks on the
> bond? > >> > >> Thanks, Livnat > >> > >> On 06/18/2013 05:36 PM, Ricardo
> Esteves wrote: > >>> Good afternoon, > >>> > >>> Yes, the "Save network
> configuration" is checked, configurations are > >>> persistent across boots.
> > >>> > >>> The problem is not the persistence of the configurations, the
> problem is > >>> that after a reboot the network performance on the VMs is
> very bad, and > >>> to fix it i need to remove the bonding and add it again.
> > >>> > >>> In attachment, the screenshots of my network configuration. >
> >>> > >>> Best regards, > >>> Ricardo Esteves. > >>> > >>> -----Original
> Message----- > >>> *From*: Mike Kolesnik < mkolesni at redhat.com <
> mailto:mkolesni at redhat.com > > >>> < mailto:mkolesni at redhat.com > > >>> <
> mailto:Mike%20Kolesnik%20%3cmkolesni at redhat.com %3e>> > >>> *To*: Ricardo
> Esteves < maverick.pt at gmail.com > >>> < mailto:maverick.pt at gmail.com >   <
> mailto:maverick.pt at gmail.com > > >>> <
> mailto:Ricardo%20Esteves%20%3cmaverick.pt at gmail.com %3e>> > >>> *Cc*:
> Users at ovirt.org < mailto:Users at ovirt.org >   < mailto:Users at ovirt.org > >
> >>> < mailto:Users at ovirt.org > > >>> *Subject*: Re: [Users] Bonding - VMs
> Network performance problem > >>> *Date*: Sun, 26 May 2013 04:57:43 -0400
> (EDT) > >>> > >>> > >>> > >>>
> ------------------------------------------------------------------------ >
> >>> > >>> > >>>     Hi, > >>> > >>>     I've got ovirt installed on 2 HP
> BL460c G6 blades, and my VMs have > >>>     very poor network performance
> (around 7,01K/s). > >>> > >>>     On the servers itselfs there is no
> problem, i can download a file > >>>     with wget at around 99 M/s. > >>> >
> >>>     Then i go to ovirt network configuration remove the bonding and then
> > >>>     make the bonding again and the problem gets fixed (i have to do
> this > >>>     everytime i reboot my blades). > >>> > >>> Have you tried to
> check the "Save network configuration" check box, or > >>> clicking the
> button from the host's NICs  sub-tab? > >>> > >>> This should persist the
> configuration that you set on the host across > >>> reboots.. > >>> > >>> >
> >>>     SERVER' s Software: > >>>     CentOS 6.4 (64 bits) -
> 2.6.32-358.6.2.el6.x86_64 > >>>     Ovirt EL6 official rpms. > >>> > >>>
> Anyone experienced this kind of problems? > >>> > >>>     Best regards,
> > >>>     Ricardo Esteves. > >>> > >>> > >>> > >>>
> _______________________________________________ > >>>     Users mailing
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> mailto:Users at ovirt.org > > >>> http://lists.ovirt.org/mailman/listinfo/users
> > >>> > >>> > >>> > >>> > >>> > >>>
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