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Jon Corbet wrote a piece yesterday that will be in next week's Linux Weekly News entitled, "Some numbers and thoughts on the stable kernels". The point of the article is to review the last five years of stable mainline kernel releases and the updates to them.

As you may know, Parallels / OpenVZ has a 2.6.32 "devel" branch and a goal of making it the next "stable" branch. They have had several 2.6.32 releases and have been putting a lot of work into it. This work has also lead to 29 patches so far that have made their way into the mainline 2.6.32 kernel updates. This ranks Parallels the 9th top updates contributor (or 11th if you count "None" and "Unknown"). It should be noted that these mainline contributions benefit everyone and are not OpenVZ specific... just in case someone were to get confused and wrongly think the patches were an attempt to get OpenVZ into the mainline.

Want to read about it for yourself? It is currently subscriber-only content that should becoming freely available on September 9th. I've been an LWN reader since the beginning and a paying subscriber since they went to a subscription model. I can provide a "subscriber-link" that will allow non-subscribers to read the article as an enticement to become a subscriber. Once it is freely released, I'll try and remember to update this post with a new link.

To the Parallels / OpenVZ developers I say... Thanks for the continuing hard work on 2.6.32, your contributions are appreciated... and I look forward to the upcoming "stable" 2.6.32 OpenVZ kernel.

Comments

( 5 comments — Leave a comment )
(Anonymous)
Sep. 1st, 2010 04:02 pm (UTC)
and no patches for 2.6.34?
I would really love to see more work on the latest kernel. Else OpenVZ always stays behind one (or several) step.
dowdle
Sep. 1st, 2010 07:13 pm (UTC)
Re: and no patches for 2.6.34?
Don't expect an OpenVZ branch for every new kernel that comes out. That would be a lot of work for nothing. The mainline development cycle produces a new kernel every 3 months. The most rapid distro release cycle is 6 months (Ubuntu and Fedora) with average being much longer than that (12 - 18 months perhaps). There are many mainline releases that hardly get used by anyone... and only a few mainline branches get extended update support... like 2.6.27 and 2.6.32.

I have no say in what branches get chosen... but if I did... I'd recommend only those that have extended support from mainline or those from the "enterprise" distros. To the best of my knowledge, 2.6.34 doesn't fall into that category.
(Anonymous)
Sep. 2nd, 2010 08:49 am (UTC)
By the way, yes, I saw that a lot of patches from the OpenVZ-Team. Perhaps soon OpenVZ flow into upstream? :)
I now use openvz in Ubuntu 8.04 LTS. Even though the real estate development status, the kernel is working fine. Write good code, thanks. And his place in the upstream.
dowdle
Sep. 2nd, 2010 02:56 pm (UTC)
OpenVZ going into mainline?
No, OpenVZ won't be going into mainline. It is too big, too mature, and too disruptive... and touches too many subsystems. That's my understanding anyway. OpenVZ is the present but LXC is the possible future.
dowdle
Sep. 10th, 2010 05:54 pm (UTC)
Article freely available now
Hmm, I can't seem to edit the original post... so I'm leaving this comment with the link to the freely available article that just opened up yesterday:

Some numbers and thoughts on the stable kernels
http://lwn.net/Articles/402512/
( 5 comments — Leave a comment )

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