Author Archives: Lars Kurth

About Lars Kurth

Lars Kurth is a highly effective, passionate community manager with strong experience of working with open source communities (Symbian, Symbian DevCo, Eclipse, GNU) and currently is community manager for xen.org. Lars has 9 years of experience building and leading engineering teams and a track record of executing several change programs impacting 1000 users. Lars has 16 years of industry experience in the tools and mobile sector working at ARM, Symbian Ltd, Symbian Foundation and Nokia. Lars has strong analytical, communication, influencing and presentation skills, good knowledge of marketing and product management and extensive background in C/C , Java and software development practices which he learned working as community manager, product manager, chief architect, engineering manager and software developer. If you want to know more, check out uk.linkedin.com/in/larskurth. Personally, Lars has a wide range of interests such as literature, theatre, cinema, cooking and gardening. He is particularly fascinated by orchids and carnivorous plants and has built a rather large collection of plants from all over the world. His love for plants extends into a passion for travel, in particular to see plants grow in their native habitats.

Announcing the Xen Project 4.10 RC and Test Day Schedules

On Monday, we created Xen 4.10 RC1 and will release a new release candidate every MONDAY, until we declare a release candidate as the final candidate and cut the Xen 4.10 release. We will also hold a Test Day every WEDNESDAY for the release candidate that was released the week prior to the Test Day starting from RC2. Note that RC’s are announced on the following mailing lists: xen-announce, xen-devel and xen-users. This means we will have Test Days on October 25th, Nov 1st, 8th, 15th and 22nd. Your testing is still valuable on other days, so please feel free to send Test Reports as outlined below at any time.

Getting, Building and Installing a Release Candidate

Release candidates are available from our git repository at

git://xenbits.xenproject.org/xen.git (tag 4.10.0-<rc>)

where <rc> is rc1, rc2, rc3, etc. and as tarball from

https://downloads.xenproject.org/release/xen/4.10.0-<rc>/xen-4.10.0-<rc>.tar.gz
https://downloads.xenproject.org/release/xen/4.10.0-<rc>/xen-4.10.0-<rc>.tar.gz.sig

Detailed build and Install instructions can be found on the Test Day Wiki. Make sure you check the known issues section of the instructions before trying to download an RC.

Testing new Features, Test and Bug Reports

You can find Test Instructions for new features on our Test Day Wiki and instructions for general tests on Testing Xen. The following pages provide information on how to report successful tests and how to report bugs and issues.

Happy Testing!

Recap of LinuxCon China and Xen Project’s Growth in the Region

It’s been a very busy month or so for the Xen Project. During mid-June, I was lucky to attend and speak at LinuxCon + ContainerCon China held in Beijing. There I spoke on the topic of securing embedded systems with the hypervisor and live patching, virtual machine introspection and vulnerability management alongside my colleague Cheng Zhang of Citrix.

Open source has grown tremendously in China over the last few years, with Xen Project technology being a key enabler for cloud computing. Most recently, the Xen Project announced Huawei joining the Project’s advisory board. Huawei is one of a growing number of Chinese companies leveraging and contributing to the Xen Project’s software. Other organizations include Alibaba, Fujitsu (China), Intel (China), Tencent, Inspur, and more.

The Xen Project hypervisor currently powers Alibaba Cloud, which is growing at a massive rate with incredible potential.

Many ask why is this growth happening in China and why now? There are many different reasons, but I think the main point is: As key technologies are increasingly built collaboratively, more and more Chinese companies are using open source to leapfrog competitors. By joining Linux Foundation projects, in-country organizations are helping to drive further growth and development.

Collaboration in China and at the Conference

Contributions with the Xen Project have greatly expanded over the last few years, especially in contributions and membership coming from China. In our latest release, Xen Project 4.9, we had 25% more contributors to the core hypervisor, and an increase of 17% of contributions coming from the hypervisor, tests, and other components. We received several contributions from individuals based in China as well as Fujitsu (China), Huawei Technologies, and Intel (China).

We are generally seeing more companies (in China and beyond) participating in the project with an eye toward automotive, embedded, security, and native-cloud computing.

During the conference, I was able to meet up with community members from Alibaba, Huawei, Hyper_, Intel and others.. Key highlights and conversations for me included:

  • In the last year, we have seen very rapid adoption of Xen Project based products in government (e.g. China State Grid), industry (e.g. CTCI), telecoms (e.g. China Mobile), banking/financial (e.g. ICBC, People’s Insurance Company of China) and are starting to see adoption in High Performance Computing. One surprising factor that is leading to rapid adoption of open source in China is that many industries are required to perform code audits on software with the aim of strengthening cybersecurity, which gives open source software a significant edge.
  • I had lots of discussions on the “ins and outs” of Virtual Machine Introspection, after I highlighted that VMI defeated WannaCry/EternalBlue a priori mentioned in my live patching, virtual machine introspection and vulnerability management talk. As I learned most WannaCry victims were based in China including a number of companies such as the China National Petroleum Corporation, which led to 20% of petrol stations across the mainland going offline.
  • Live Patching, and its potential limitations and the complexities of how to build and validate them, were also high on the list of discussions which came up several times.
  • Another highlight was a discussion around the proposed Shared coprocessor framework for Xen, whose design is currently being finalized and will support sharing of GPUs, DSPs, FPGs and security once the prototype has been completed and upstreamed. I had originally assumed that co-processor sharing was mainly of interested either in embedded or for niche cloud use-cases, but was surprised to learn that there may be much more market pull than anticipated.

I’m looking forward for continued collaboration and innovation in this region.

Download server change for Xen releases

The official way to get the Xen hypervisor and other Xen Project downloads is via the the https://www.xenproject.org/ website. If you get Xen via the links on the website, you do not need to read the rest of this message.

We are aware that some users have been visiting the download server directly. That download server is changing.

In the past, the Xen Project has hosted its releases on space kindly provided on bits.xensource.com by Citrix (and, previously, XenSource). For some time now, we have in parallel made available downloads on the Xen Project’s server at https://downloads.xenproject.org/release/xen/.

Starting right away, Xen Project releases will appear only on the Xen Project’s server.

The directory structure remains unchanged. So, you can replace
http://bits.xensource.com/oss-xen/release/
at the start of all urls, with
https://downloads.xenproject.org/release/xen/
in all scripts, bookmarks, etc.

Previously published files will remain on bits.xensource.com, but new releases will not appear there.

Announcing Xen Project 4.9 RC and Test Day Schedule

Today, we created Xen 4.9 RC1 and will release a new release candidate every week, until we declare a release candidate as the final candidate and cut the Xen 4.9 release. We will also hold a Test Day every TUESDAY for the release candidate that was released the week prior to the Test Day starting from RC2. Note that RC’s are announced on the following mailing lists: xen-announce, xen-devel and xen-users. This means we will have Test Days on April 25th, May 2nd, 9th and 16th. Your testing is still valuable on other days, so please feel free to send Test Reports as outlined below at any time.

Getting, Building and Installing a Release Candidate

Release candidates are available from our git repository at

git://xenbits.xenproject.org/xen.git (tag 4.9.0-<rc>)

where <rc> is rc1, rc2, rc3, etc. and as tarball from

https://downloads.xenproject.org/release/xen/4.9.0-<rc>/xen-4.9.0-<rc>.tar.gz
https://downloads.xenproject.org/release/xen/4.9.0-<rc>/xen-4.9.0-<rc>.tar.gz.sig

Detailed build and Install instructions can be found on the Test Day Wiki. Make sure you check the known issues section of the instructions before trying to download an RC.

Testing new Features, Test and Bug Reports

You can find Test Instructions for new features on our Test Day Wiki and instructions for general tests on Testing Xen. The following pages provide information on how to report successful tests and how to report bugs and issues.

Happy Testing!

Now Accepting Submissions for Xen Project Developer and Design Summit 2017

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We’re excited to announce that registration and the call for proposals is open for Xen Project Developer and Design Summit 2017, which will be held in Budapest, Hungary from July 11-13, 2017. The Xen Project Developer and Design Summit combines the formats of Xen Project Developer Summits with Xen Project Hackathons, and brings together the Xen Project’s community of developers and power users.

Submit a Talk

Do you have an interesting use case around Xen Project technology or best practices around the community? There’s a wide variety of topics we are looking for, including security, embedded environments, network function virtualization (NFV), and more. You can find all the suggested topics for presentations and panels here (make sure you select the Topics tab).

Several formats are being accepted for speaking proposals, including:

  • Presentations and Panels
  • Interactive design and problem solving sessions. These sessions can be submitted as part of the CFP, but we will reserve a number of design sessions to be allocated during the event. Proposers of design sessions are expected to host and moderate design sessions following the format we have used at Xen Project Hackathons. If you have not participated in these in the past, check out past event reports from 2016, 2015 and 2013.

Never talked at a conference before? Don’t worry! We encourage new speakers to submit for our events and have plenty of resources to help you prepare for your presentation.

Here are some dates to remember for submissions and in general:

  • CFP Close: April 14, 2017 (correction: was extended to April 21)
  • CFP Notifications: May 5, 2017
  • Schedule Announced: May 16, 2017
  • Event: July 11-13, 2017

Registration

Come join us for this event, and if you register by May 19, you’ll get an early bird discount :) Travel stipends are available for students or individuals that are not associated with a company. If you have any questions, please send a note to community.manager@xenproject.org.

Xen Project Participates in Google Summer of Code and Outreachy

This is a quick announcement that the Xen Project is again participating in Google Summer of Code (GSoC), a program that awards three-month paid stipends to University students to work on open source projects, with the goal to get open source experience. The Xen Project will also again participate in Outreachy, which is an internship program that organises three-month paid internships with free and open-source software projects for people who are typically underrepresented in the technology industry. Outreachy has been helping women (cis and trans), trans men, genderqueer people and people from other discriminated backgrounds get involved in free and open source software for several years. The Xen Project is proud that it has participated continually in Outreachy (and its predecessor OPW) for 4 years.

I want to participate, how do I get started?

If you are not at all familiar with programs such as GSoC and Outreachy, have a quick look at our introduction. In a nutshell, both programs go through several stages:

  • Check eligibility requirements.
  • Now until application period: Preparation by working on small tasks (also called micro-tasks) within our community to identify a suitable project and to familiarise yourself with the technology.
  • Application Period (aka paperwork): For GSoC, the application system is open from March 20 to Apr 3, 2017; however you should work on micro-tasks before and prepare your application together with a mentor as early as possible. For Outreachy, the application system is already open and will close March 30, 2017 (but you can edit and modify proposals submitted in agreement with your mentor until April 28th).
  • Selection Period: After applying to participate, our mentors will chose the most promising candidates. Successful candidates will be announced on the following dates: April 28 (Outreachy), May 4 (GSoC).
  • Internship Duration: May 30 to August 29 (GSoC) and August 30 (Outreachy).

For a list of projects for participants and more information on how to apply, check our Xen Project 2017 Summer Internship Portal. We have many different projects in many different areas: from Hypervisor work, projects in Mirage OS, to tools and test related tasks. Note that we will be adding extra projects to this page in the coming weeks and that applicants can suggest projects on their own.

You may also want to check out the pages of GSoC mentoring organisations which we collaborate with. Sometimes, you will find Xen related projects there: FreeBSD (currently 2 projects), QEMU, Libvirt.

Learn about the Experience of past Participants

At a past Xen Project Developer Summit, we ran a panel discussion that included Outreachy interns, GSoC students as well as mentors.


You may also want to read Women interns rocking open source at Xen Project.