[CentOS-virt] New 4.9.11-22 kernels and linux-firmware packages to test in xen-testing for CentOS-6 and CentOS-7

Mon Feb 27 22:43:57 UTC 2017
T.Weyergraf <T.Weyergraf at virtfinity.de>

No, don't get that confused. As of lately, Fedora 25 has updated to 
kernel 4.9.11 as well. But this is just coincidence. This is not the 
Xen4CentOS Dom0 testing-kernel, but the package from Fedora's update 
repos. That testing kernel is used on the guest along with Xen4CentOS 
Xen hypervisor packages to make a Xen4CentOS (7) virtualization host as 
guest on kvm.

I just happen to run my workstation with Fedora+KVM. For any 
virtualization testing, I use nested virt and create Xen virtualization 
hosts as kvm guests for testing puposes.


On 02/27/2017 11:21 PM, FeldHost Admin wrote:
> Hello, is this kernel is also for KVM hosts? If not, will be? I use 
> elrepo now...
>
> T.Weyergraf wrote:
>>
>> Hi
>>
>> So far, I did some preliminary testing using nested virt:
>>
>> host(L0): Fedora 25, kernel-4.9.11-200, kvm+qemu
>>
>> Guest(L1): CentOS 7 Xen-4.6.3-7, kernel-4.9.11-22
>>
>> So far, at least the L1 setup had no issues. I'll need to pull L1
>> guest-storage from backup to test some L2 guests.
>>
>> Likewise, I try to allocate two blades at work for tests on real
>> metal. Our standard-tests include starting CentOS-5/6/7 guests and
>> migrate them around. I hope to get this done next week, but I need
>> company approval for that, which seems doable, as we use Xen4CentOS in
>> production :)
>> Running diverse CentOS versions and some Windows Server guests and
>> being capable of migrating the whole shebang around from machine to
>> machine is our daily use case. That includes PV, HVM+PV and PVHVM
>> guest types, which is pretty comprehensive to me.
>>
>> Let me know, if you are interested in more detailed
>> settings/setup/tests and I will see, what I can run.
>>
>> Rest assured, that this work is much needed and appreciated. We run
>> almost 1000 virtual machines on about 70 blades using Xen4CentOS since
>> day 1. This new kernel gives us the latest drivers in Dom0, something
>> which is highly desired, as we are seeing issues occasionally, like
>> bnx2x oops-ing on broadcom 10G interfaces.
>>
>> Regards,
>> Thomas
>>
>> On 02/27/2017 02:00 PM, Johnny Hughes wrote:
>>>
>>> On 02/21/2017 11:40 AM, Johnny Hughes wrote:
>>>>
>>>> I have pushed some new kernels and linux-firmware packages to the
>>>> xen-testing repos for both CentOS-6 and CentOS-7.  The CentOS-7 
>>>> packages
>>>> may take a few hours to make it to the repo.
>>>>
>>>> The CentOS-6 repo also contains a newer xfsprogs as that is required
>>>> with newer kernels 
>>>> (https://bugzilla.redhat.com/show_bug.cgi?id=1314605).
>>>>
>>>> This kernel (and supplementary xfsprogs, linux-firmware) are scheduled
>>>> to be the replacements for the 3.18.x LTS tree that has gone EOL from
>>>> Kernel.org.  We can maintain the 4.9 LTS tree until January 2019
>>>> (https://www.kernel.org/category/releases.html).
>>>>
>>>> We have added in blktap2 support to this kernel, please test that
>>>> functionality if you need it, it seems to be working to me.
>>>>
>>>> We really need people to test this kernel and associated packages
>>>> thoroughly so we can find and fix issues before release.
>>>>
>>>> Please post any issues or questions on this list.
>>>
>>>
>>> OK, just tagged 4.9.13-22.el7 (and .el6) to the testing repos for xen on
>>> c6 and c7 as this fixes the new dccp kernel issue.
>>>
>>> Only have one person reporting good tests so far.  We need more testing
>>> or we risk to breaking people's systems when we release later.
>>>
>>>
>>>
>>>
>>> _______________________________________________
>>> CentOS-virt mailing list
>>> CentOS-virt at centos.org
>>> https://lists.centos.org/mailman/listinfo/centos-virt
>>
>>
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>
>
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