[Users] Debian: recommended kernel

[Kir Kolyshkin]

On 05/09/2012 11:33 AM, Roman Haefeli wrote:
> On Fri, 2012-05-04 at 11:58 +0200, Roman Haefeli wrote:
>> Thanks for all the responses!
>>
>> On Thu, 2012-05-03 at 09:14 +0400, Kir Kolyshkin wrote:
>>> On 05/02/2012 09:39 PM, Timh B wrote:
>>>> This was linked earlier this week;
>>>> https://github.com/CoolCold/tools/blob/master/openvz/kernel/create-ovz-kernel-for-debian.sh
>>>>
>>>> Might be useful for you if you wish to get a debianized openvz-kernel.
>>> Yet another solution is to use alien:
>>> http://wiki.openvz.org/Install_kernel_from_RPM_on_Debian_6.0
>>>
>>> The bad thing about it is it's not a "native" way. The good thing is you
>>> have the same bit-by-bit binary kernel which we test a lot.
>> In the meanwhile I have tried two of the suggested solutions:
>>
>> * RHEL6-kernel (debianized with alien)
>> * proxmox-kernel from their repository (which for the 2.6.32 version
>> says it is based on RHEL6)
>>
>> (I haven't looked yet into building my own with CoolCold's script)
>>
>> I didn't have troubles to install either of those. However, both expose
>> the exact same problem. The network bridges vzbr0 and vzbr1 do not work
>> correctly and I need those for the veth devices of the containers.
>> Networking without those bridges seem to work fine, but when the bridges
>> are active, TCP connections fail to work. UDP seems to be not affected,
>> both inbound and outbound connections work. However, with TCP I can only
>> establish outbound connections, but as soon as the connection is
>> established, nothing is received on the other end anymore. Nor can I
>> send from outside to the machine with vzbr0.
> Our problem looks very similar to the one described here:
> https://bugzilla.redhat.com/show_bug.cgi?id=623199
>
> Could it be that current stable OpenVZ suffers from the same issue? Or
> asked differently: Is the current stable OpenVZ kernel based on RHEL 6.0
> which does not contain the fixes as described in:
> http://rhn.redhat.com/errata/RHSA-2011-0542.html

If you go to http://wiki.openvz.org and put RHSA 2011 0542 into a search 
box you will get an answer,
which is kernel 042stab013.1 released a bit less than a year ago, end of 
May 2011.

So I am pretty sure the bug you are referring to is fixed.

Anyway, please file a new bug to bugzilla.openvz.org, and provide a 
simple scenario of how to reproduce it (please write a complete report).