Re: [ovirt-users] Issue with kernel 2.6.32-573.3.1.el6.x86_64?

[Ernest Beinrohr]

On 23.10.2015 09:47, Giorgio Bersano wrote:

Hi Michael,
if you have the possibility to test with
kernel-2.6.32-504.16.2.el6.x86_64 and
kernel-2.6.32-504.23.4.el6.x86_64 please do it.


I have similar VLAN problems with kernels 573.7.1 and 573.8.1. On 2 of 
my hosts VLANs are not working. I use bonding and VLANs over the bond0. 
The problematic hosts use the "igb" network driver with "Intel 
Corporation I350 Gigabit Network Connection". Other hosts have working 
VLANs.


With .504. kernels everything works.


PS: https://www.centos.org/forums/viewtopic.php?f=16&t=54330
--
Ernest Beinrohr, AXON PRO
Ing , RHCE 
, RHCVA 
, LPIC 
, VCA ,

+421-2-62410360 +421-903-482603
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Re: [ovirt-users] Issue with kernel 2.6.32-573.3.1.el6.x86_64?

[Michael Kleinpaste]

Not an option unfortunately. The system is a production one and we don't
have spare equipment to test that on.

On Fri, Oct 23, 2015, 12:47 AM Giorgio Bersano 
wrote:

> Hi Michael,
> if you have the possibility to test with
> kernel-2.6.32-504.16.2.el6.x86_64 and
> kernel-2.6.32-504.23.4.el6.x86_64 please do it.
>
> I'm expecting that 2.6.32-504.16.2.el6 is the latest correctly working
> kernel. Please tell us if this is your case.
> There are clear signs of misbehaviours due to changes in the VLAN code
> between the two kernels above.
>
> Also take a look at https://bugs.centos.org/view.php?id=9467 and
> https://bugzilla.redhat.com/show_bug.cgi?id=1263561 .
>
> Best regards,
> Giorgio.
>
> P.S. sorry for top posting. I tried to revert this thread but I
> couldn't do it in an effective way :(
>
>
>
> 2015-10-21 23:05 GMT+02:00 Michael Kleinpaste
> :
> > VMs are on different VLANs and use a central Vyos VM as the firewall and
> > default gateway.  The only indication I had that the packets were getting
> > dropped or being sent out of order was by tshark'ing the traffic.  Tons
> and
> > tons of resends.
> >
> > The problem was definitely resolved after I dropped back to the prior
> kernel
> > (2.6.32-504.12.2.el6.x86_64).
> >
> >
> > On Tue, Oct 20, 2015 at 11:51 PM Ido Barkan  wrote:
> >>
> >> Hi Michael,
> >> Can you describe your network architecture for this vm (inside the
> host).
> >> Do you know where are the packets get dropped?
> >> Ido
> >>
> >> On Tue, Sep 22, 2015 at 1:19 AM, Michael Kleinpaste
> >>  wrote:
> >> > Nobody's seen this?
> >> >
> >> > On Wed, Sep 16, 2015 at 9:08 AM Michael Kleinpaste
> >> >  wrote:
> >> >>
> >> >> So I patched my vhosts and updated the kernel to
> >> >> 2.6.32-573.3.1.el6.x86_64.  Afterwards the networking became unstable
> >> >> for my
> >> >> vyatta firewall vm.  Lots of packet loss and out of order packets
> >> >> (based on
> >> >> my tshark at the time).
> >> >>
> >> >> Has anybody else experienced this?
> >> >> --
> >> >> Michael Kleinpaste
>
-- 
*Michael Kleinpaste*
Senior Systems Administrator
SharperLending, LLC.
www.SharperLending.com
michael.kleinpa...@sharperlending.com
(509) 324-1230   Fax: (509) 324-1234
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Re: [ovirt-users] Issue with kernel 2.6.32-573.3.1.el6.x86_64?

[Giorgio Bersano]

Hi Michael,
if you have the possibility to test with
kernel-2.6.32-504.16.2.el6.x86_64 and
kernel-2.6.32-504.23.4.el6.x86_64 please do it.

I'm expecting that 2.6.32-504.16.2.el6 is the latest correctly working
kernel. Please tell us if this is your case.
There are clear signs of misbehaviours due to changes in the VLAN code
between the two kernels above.

Also take a look at https://bugs.centos.org/view.php?id=9467 and
https://bugzilla.redhat.com/show_bug.cgi?id=1263561 .

Best regards,
Giorgio.

P.S. sorry for top posting. I tried to revert this thread but I
couldn't do it in an effective way :(



2015-10-21 23:05 GMT+02:00 Michael Kleinpaste
:
> VMs are on different VLANs and use a central Vyos VM as the firewall and
> default gateway.  The only indication I had that the packets were getting
> dropped or being sent out of order was by tshark'ing the traffic.  Tons and
> tons of resends.
>
> The problem was definitely resolved after I dropped back to the prior kernel
> (2.6.32-504.12.2.el6.x86_64).
>
>
> On Tue, Oct 20, 2015 at 11:51 PM Ido Barkan  wrote:
>>
>> Hi Michael,
>> Can you describe your network architecture for this vm (inside the host).
>> Do you know where are the packets get dropped?
>> Ido
>>
>> On Tue, Sep 22, 2015 at 1:19 AM, Michael Kleinpaste
>>  wrote:
>> > Nobody's seen this?
>> >
>> > On Wed, Sep 16, 2015 at 9:08 AM Michael Kleinpaste
>> >  wrote:
>> >>
>> >> So I patched my vhosts and updated the kernel to
>> >> 2.6.32-573.3.1.el6.x86_64.  Afterwards the networking became unstable
>> >> for my
>> >> vyatta firewall vm.  Lots of packet loss and out of order packets
>> >> (based on
>> >> my tshark at the time).
>> >>
>> >> Has anybody else experienced this?
>> >> --
>> >> Michael Kleinpaste
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Re: [ovirt-users] Issue with kernel 2.6.32-573.3.1.el6.x86_64?

[Ido Barkan]

It might help to tcpdump at different points (devices: bridge, vlan device,
physical nic or bond) in order to isolate the evil dropper.
Ido

Thanks,
Ido
On Oct 22, 2015 12:06 AM, "Michael Kleinpaste" <
michael.kleinpa...@sharperlending.com> wrote:

> VMs are on different VLANs and use a central Vyos VM as the firewall and
> default gateway.  The only indication I had that the packets were getting
> dropped or being sent out of order was by tshark'ing the traffic.  Tons and
> tons of resends.
>
> The problem was definitely resolved after I dropped back to the prior
> kernel (2.6.32-504.12.2.el6.x86_64).
>
> On Tue, Oct 20, 2015 at 11:51 PM Ido Barkan  wrote:
>
>> Hi Michael,
>> Can you describe your network architecture for this vm (inside the host).
>> Do you know where are the packets get dropped?
>> Ido
>>
>> On Tue, Sep 22, 2015 at 1:19 AM, Michael Kleinpaste
>>  wrote:
>> > Nobody's seen this?
>> >
>> > On Wed, Sep 16, 2015 at 9:08 AM Michael Kleinpaste
>> >  wrote:
>> >>
>> >> So I patched my vhosts and updated the kernel to
>> >> 2.6.32-573.3.1.el6.x86_64.  Afterwards the networking became unstable
>> for my
>> >> vyatta firewall vm.  Lots of packet loss and out of order packets
>> (based on
>> >> my tshark at the time).
>> >>
>> >> Has anybody else experienced this?
>> >> --
>> >> Michael Kleinpaste
>> >> Senior Systems Administrator
>> >> SharperLending, LLC.
>> >> www.SharperLending.com
>> >> michael.kleinpa...@sharperlending.com
>> >> (509) 324-1230   Fax: (509) 324-1234
>> >
>> > --
>> > Michael Kleinpaste
>> > Senior Systems Administrator
>> > SharperLending, LLC.
>> > www.SharperLending.com
>> > michael.kleinpa...@sharperlending.com
>> > (509) 324-1230   Fax: (509) 324-1234
>> >
>> > ___
>> > Users mailing list
>> > Users@ovirt.org
>> > http://lists.ovirt.org/mailman/listinfo/users
>> >
>>
>>
>>
>> --
>> Thanks,
>> Ido Barkan
>>
> --
> *Michael Kleinpaste*
> Senior Systems Administrator
> SharperLending, LLC.
> www.SharperLending.com
> michael.kleinpa...@sharperlending.com
> (509) 324-1230   Fax: (509) 324-1234
>
> ___
> Users mailing list
> Users@ovirt.org
> http://lists.ovirt.org/mailman/listinfo/users
>
>
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Re: [ovirt-users] Issue with kernel 2.6.32-573.3.1.el6.x86_64?

[Michael Kleinpaste]

VMs are on different VLANs and use a central Vyos VM as the firewall and
default gateway.  The only indication I had that the packets were getting
dropped or being sent out of order was by tshark'ing the traffic.  Tons and
tons of resends.

The problem was definitely resolved after I dropped back to the prior
kernel (2.6.32-504.12.2.el6.x86_64).

On Tue, Oct 20, 2015 at 11:51 PM Ido Barkan  wrote:

> Hi Michael,
> Can you describe your network architecture for this vm (inside the host).
> Do you know where are the packets get dropped?
> Ido
>
> On Tue, Sep 22, 2015 at 1:19 AM, Michael Kleinpaste
>  wrote:
> > Nobody's seen this?
> >
> > On Wed, Sep 16, 2015 at 9:08 AM Michael Kleinpaste
> >  wrote:
> >>
> >> So I patched my vhosts and updated the kernel to
> >> 2.6.32-573.3.1.el6.x86_64.  Afterwards the networking became unstable
> for my
> >> vyatta firewall vm.  Lots of packet loss and out of order packets
> (based on
> >> my tshark at the time).
> >>
> >> Has anybody else experienced this?
> >> --
> >> Michael Kleinpaste
> >> Senior Systems Administrator
> >> SharperLending, LLC.
> >> www.SharperLending.com
> >> michael.kleinpa...@sharperlending.com
> >> (509) 324-1230   Fax: (509) 324-1234
> >
> > --
> > Michael Kleinpaste
> > Senior Systems Administrator
> > SharperLending, LLC.
> > www.SharperLending.com
> > michael.kleinpa...@sharperlending.com
> > (509) 324-1230   Fax: (509) 324-1234
> >
> > ___
> > Users mailing list
> > Users@ovirt.org
> > http://lists.ovirt.org/mailman/listinfo/users
> >
>
>
>
> --
> Thanks,
> Ido Barkan
>
-- 
*Michael Kleinpaste*
Senior Systems Administrator
SharperLending, LLC.
www.SharperLending.com
michael.kleinpa...@sharperlending.com
(509) 324-1230   Fax: (509) 324-1234
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Re: [ovirt-users] Issue with kernel 2.6.32-573.3.1.el6.x86_64?

[Ido Barkan]

Hi Michael,
Can you describe your network architecture for this vm (inside the host).
Do you know where are the packets get dropped?
Ido

On Tue, Sep 22, 2015 at 1:19 AM, Michael Kleinpaste
 wrote:
> Nobody's seen this?
>
> On Wed, Sep 16, 2015 at 9:08 AM Michael Kleinpaste
>  wrote:
>>
>> So I patched my vhosts and updated the kernel to
>> 2.6.32-573.3.1.el6.x86_64.  Afterwards the networking became unstable for my
>> vyatta firewall vm.  Lots of packet loss and out of order packets (based on
>> my tshark at the time).
>>
>> Has anybody else experienced this?
>> --
>> Michael Kleinpaste
>> Senior Systems Administrator
>> SharperLending, LLC.
>> www.SharperLending.com
>> michael.kleinpa...@sharperlending.com
>> (509) 324-1230   Fax: (509) 324-1234
>
> --
> Michael Kleinpaste
> Senior Systems Administrator
> SharperLending, LLC.
> www.SharperLending.com
> michael.kleinpa...@sharperlending.com
> (509) 324-1230   Fax: (509) 324-1234
>
> ___
> Users mailing list
> Users@ovirt.org
> http://lists.ovirt.org/mailman/listinfo/users
>



-- 
Thanks,
Ido Barkan
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Re: [ovirt-users] Issue with kernel 2.6.32-573.3.1.el6.x86_64?

[Michael Kleinpaste]

Nobody's seen this?

On Wed, Sep 16, 2015 at 9:08 AM Michael Kleinpaste <
michael.kleinpa...@sharperlending.com> wrote:

> So I patched my vhosts and updated the kernel
> to 2.6.32-573.3.1.el6.x86_64.  Afterwards the networking became unstable
> for my vyatta firewall vm.  Lots of packet loss and out of order packets
> (based on my tshark at the time).
>
> Has anybody else experienced this?
> --
> *Michael Kleinpaste*
> Senior Systems Administrator
> SharperLending, LLC.
> www.SharperLending.com
> michael.kleinpa...@sharperlending.com
> (509) 324-1230   Fax: (509) 324-1234
>
-- 
*Michael Kleinpaste*
Senior Systems Administrator
SharperLending, LLC.
www.SharperLending.com
michael.kleinpa...@sharperlending.com
(509) 324-1230   Fax: (509) 324-1234
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[ovirt-users] Issue with kernel 2.6.32-573.3.1.el6.x86_64?

[Michael Kleinpaste]

So I patched my vhosts and updated the kernel
to 2.6.32-573.3.1.el6.x86_64.  Afterwards the networking became unstable
for my vyatta firewall vm.  Lots of packet loss and out of order packets
(based on my tshark at the time).

Has anybody else experienced this?
-- 
*Michael Kleinpaste*
Senior Systems Administrator
SharperLending, LLC.
www.SharperLending.com
michael.kleinpa...@sharperlending.com
(509) 324-1230   Fax: (509) 324-1234
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