virt May 2015

virt@lists.centos.org

14 participants
18 discussions

The future of blktap in Xen4CentOS
by George Dunlap 11 May '15

11 May '15

On Tue, May 5, 2015 at 2:07 PM, Johnny Hughes <johnny(a)centos.org> wrote: > WRT a new kernel .. the 3.18.x kernel has been selected to be maintained > as an LTS until Jan 2017. I think we should start work on rebuilding > this kernel and using it in the x4c projects. > > https://lwn.net/Articles/636289/ > > Thoughts? > > I will grab this kernel and try to roll in all the patches, etc. and see > if I can make it work. I did a little bit of work on building the 3.18 kernel a couple of weeks ago, but it looks like the blktap2.5 kernel code we were using before has totally bitrotted. I see three ways forward: 1. Try to do a "deep port" of the functionality, continuing to maintain it going forward. 2. Start using the blktap3 code, which requires no kernel driver. 3. Drop blktap support, and ask people to use qdisk for vhd. Re #1, I'm not really excited about the idea of trying to keep porting those patches forward (and finding and fixing bugs in the forward-port each time). Re #2, this would require getting the blktap3 stuff working upstream and then backporting it. #3 would be by far the easiest. In parallel to the Xen for C7 work I've been doing, I've been working on getting upstream Xen to build against XenServer's blktap code, with then aim of moving to blktap3. If we want to go with #2, then a major kernel update will have to wait until that work is done. -George

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iTunes
by ToddAndMargo 10 May '15

10 May '15

Hi All, I am putting together a high end workstation quote for a customer. He is going to want a Virtual Machine, specifically so he can run iTunes (his wife buys music through iTunes and sync's them to her iPod). So which VM would you guys use? KVM or Virtual Box? I am very familiar with KVM and adore it. It's USB support is kind of weird though (iPod). I have been seriously burned by Virtual Box before and do not care much for the way Oracle does things, so I would have to bite my pride if Virtual Box would be better to run iTunes. (Who knows, maybe Virtual Box has gotten better.) What do you guys think? Many thanks, -T -- ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Computers are like air conditioners. They malfunction when you open windows ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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Experimental 3.18.12 Kernel for Xen4CentOS 6
by Johnny Hughes 08 May '15

08 May '15

All, I have compiled an experimental 3.18.12 kernel from the 3.18 LTS kernel branch from kernel.org for the Xen4Centos 6 tree. http://people.centos.org/hughesjr/xen-kernel/x86_64/ This should be considered extremely experimental at this point and is unsigned. I have tested it on 2 generic servers and it worked fine on both of those with sata and gigabit ethernet. Please test this and provide feedback on this list and George can get this into the virt6-testing tree and I'll release it along with the xen-4.4.2 rpms from there. I would think this is the logical LTS kernel to use moving forward as the 3.10.x LTS will be discontinued soon (in September 2015), and it has the longest lifetime of all the LTAS choices: https://www.kernel.org/category/releases.html Thanks, Johnny Hughes

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Any movement of Coherence?
by ToddAndMargo 08 May '15

08 May '15

Hi All, Anyone know if there has been any movement on Coherence (floating windows) yet with KVM? Would help with the no Wine 32 on RHEL 7. https://bugs.freedesktop.org/show_bug.cgi?id=39238 -T -- ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Computers are like air conditioners. They malfunction when you open windows ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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Xen 4.4.2 (with XSA-132) in virt6-testing
by George Dunlap 06 May '15

06 May '15

I've got Xen 4.4.2 in virt6-testing. I haven't had a chance to test it, and won't for another week or two; but if some volunteers can put it through its paces, I can ask Johnny to push it to the public repo sometome early next week. Thanks, -George

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kubernetes 0.16.2 in virt7-testing
by Navid Shaikh 06 May '15

06 May '15

Hi, kubernetes 0.16.2 is in virt7-testing repo. Please test and feedback. -- Regards, Navid

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Re: [CentOS-virt] Xen 4.4.2 (with XSA-132) in virt6-testing
by Karl Johnson 05 May '15

05 May '15

On Fri, Apr 24, 2015 at 4:32 AM, Pasi Kärkkäinen <pasik(a)iki.fi> wrote: > On Thu, Apr 23, 2015 at 05:09:56PM +0100, George Dunlap wrote: > > I've got Xen 4.4.2 in virt6-testing. I haven't had a chance to test > > it, and won't for another week or two; but if some volunteers can put > > it through its paces, I can ask Johnny to push it to the public repo > > sometome early next week. > > > > Great! Thanks a lot. > > I'll do some testing during the weekend. > > > Thanks, > > -George > > > -- Pasi > I've upgraded to Xen 4.4.2 and everything went fine. I've tested save/restore and few basic stuff, all good. [root@dev1 ~]# uname -r && xl info|grep xen_version 4.0.1-1.el6.elrepo.x86_64 xen_version : 4.4.2-1.el6 [root@dev1 ~]# Note; I'm using kernel-ml from elrepo because x4c kernel is too old LTS for me. Karl

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Viet SIG meeting at 14:00 today
by Lars Kurth 05 May '15

05 May '15

Note that George is on vacation Lars

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virt May 2015