Hackathon/May2013
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When and Where ?
We confirmed the Xen Hackathon for May 16-17, 2013 in Dublin Ireland.
- May 16th: 9AM to 5PM
- May 17th: 9AM to 5PM
More Information
Topics to Discuss, Code, Work on, ... at the Hackathon
Instructions
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Please use the {{Project}} template to add any discussions that you want to have at the Hackathon. Feel free to comment on discussions using {{Comment}} and your support for a specific topic - i.e. you indicate that you want to participate in this topic - by using {{Vote}} or {{VoteNo}} in the Review section of the project. To do this, use the Review section of the {{Project}}.
The code will look like
{{project=Name
...
|Review=
{{comment|~~~~:}} Some text/comment
{{vote|~~~~}} Some explanation
}}
Make sure you read the template documentation of {{Project}}, {{Comment}}, {{Vote}} and {{VoteNo}}. Mark unused fields of {{Project}} with {{N/A}}. |
Topics
| Date of insert: 29/04/2013 |
| Technical contact: Lars Kurth |
| Difficulty: N/A |
| Skills Needed: N/A |
| Description: As we are all together, we should clean up documentation related to Xen 4.3 |
| Outcomes: Good drafts of Xen 4.3 release documentation as well as a draf feature list for press coverage, etc. |
| GSoC: N/A |
Peer Review Comments
Lars.kurth 18:02, 29 April 2013 (UTC): Feel free to make suggestions here
Lars.kurth 18:02, 29 April 2013 (UTC): Will attend
| Date of insert: 02/03/2013 |
| Technical contact: Lars Kurth |
| Difficulty: N/A |
| Skills Needed: N/A |
| Description: As we are all together, the Xen maintainers and committers should discuss Xen 4.4 roadmap items as well as any other items that need coordination. Alternatively we could consider doing this the day before the Hackathon. |
| Outcomes: A rough plan for Xen 4.4 and meeting minutes |
| GSoC: N/A |
Peer Review Comments
Lars.kurth 15:27, 2 March 2013 (UTC): Feel free to make suggestions here
Lars.kurth 15:27, 2 March 2013 (UTC): Will attend
Ijc 14:06, 12 March 2013 (UTC): Will attend
Msw 22:13, 27 April 2013 (UTC): Will attend
| Date of insert: 12/03/2013 |
| Technical contact: Ian Campbell |
| Difficulty: Not too hard if you are familiar with the hardware and have Linux running |
| Skills Needed: Mostly C |
Description: Xen on ARM has reached the point where it is becoming reasonable to port it to a wider set of hardware. The idea of this session would be to take advantage of the presence of the Xen on ARM developers to port Xen to your hardware. In order to participate you will need:
|
| Outcomes: Xen running on some new ARM platforms |
| GSoC: N/A |
| Date of insert: 12/03/2013 |
| Technical contact: Ian Campbell |
| Difficulty: Depends on the complexity of the toolstack which needs modifying |
| Skills Needed: Some C, perhaps knowledge of the C bindings for the language which the toolstack uses. |
| Description: There are various higher-level toolstacks which make direct use of the xend interfaces (either through xm, sxp or XML/RPC). This project offers an opportunity to collaborate on porting toolstacks to use xl or other modern toolstack interfaces.
This project also covers those who wish to use libxl directly to implement their own toolstack or to port an existing toolstack from other lower-level interface (such as libxc) to libxl. It is expected that participants will be familiar with the internals of the toolstack the wish to port to libxl/xl |
| Outcomes: More toolstacks using xl or libxl. |
| GSoC: N/A |
| Date of insert: 12/03/2013 |
| Technical contact: Konrad Rzeszutek Wilk |
| Difficulty: Need to read dense Intel docs. |
| Skills Needed: Wielding a sharpie. |
| Description: Intel has released a new VMX type operations that allows one guest to switch in another guest page-tables. We could utilize this for a backend guest to
switch in the page-tables that the frontend has provided via the ring. Along with the Intel QuickData engine we could keep the contents of these pages (aka grefs) in the LLC. This is all handwaving at this point and I am hoping to brain-storm the problem and issues we will face. |
| Outcomes: Faster performance. |
| GSoC: N/A |
| Date of insert: 12/03/2013 |
| Technical contact: Wei Liu |
| Difficulty: |
| Skills Needed: |
| Description: There have been many ideas with regard to improving Xen network performance. Several are in the process of upstreaming. But there are still many open questions. Discussing benchmark result, identifying bottlenecks and decide what is worth prototyping would be very useful. |
| Outcomes: Faster performance. |
| GSoC: N/A |
Close Security Vulnerability Process Changes as well as discuss possible mods to the Governance Process
| Date of insert: 29/03/2013 |
| Technical contact: Lars Kurth |
| Difficulty: N/A |
| Skills Needed: N/A |
| Description: We should take the opportunity of core developers present to close down the proposed Security Vulnerability Process discussion as much as possible. Also, I wanted to discuss whether we can be a little bit more open about membership of the Security Response team (i.e. who is on it, and what the process/mechanism is of becoming a member of the team). And maybe any other security related questions. I would also like to take the opportunity of discussing possible changes to the governance process. |
| Outcomes: Not specified, project outcomes |
| GSoC: N/A |
Peer Review Comments
Msw 22:15, 27 April 2013 (UTC): Will attend
Lars.kurth 13:14, 28 April 2013 (UTC): Will attend
| Date of insert: 11/04/2013 |
| Technical contact: Javi Fontan |
| Difficulty: Depends on how much code we can reuse from previous integration |
| Skills Needed: Bash and Ruby knowledge and perhaps some C++ to change deployment file generation. |
| Description: OpenNebula is a Cloud Computing Manager that has drivers to create and manage Xen VMs. The integration with Xen was done some time ago for version 3.x and even we are continuously bug fixing and updating it still uses xm command to perform all management. We want to change the way of interacting with Xen to new versions (libxl, xl) and explore new features that can be added. |
| Outcomes: OpenNebula is properly integrated with Xen 4.x |
| GSoC: N/A |
| Date of insert: 18/04/2013 |
| Technical contact: Constantinos Venetsanopoulos |
| Difficulty: Not too hard if you are familiar with Ganeti internals wrt the hypervisor layer |
| Skills Needed: Python, knowledge of Ganeti internals and Xen networking |
| Description: Synnefo is open source cloud software. It is a complete cloud stack (Compute/Network/Storage/Image/Identity Service) with a unique design approach that keeps clear separation between the cloud and cluster layers. It exposes the OpenStack REST APIs to the outside world, but in the same time uses Ganeti for the low-level VM management part. Currently, Synnefo supports only KVM, but because of the fact that it uses Ganeti at the backend, it is easy to port it to also use Xen as the underlying hypervisor. The only part of Synnefo that needs to be ported is the networking component (snf-network). However, for this to happen, we first need to implement the corresponding feature in Ganeti, to be able to run a custom script with information in its environment every time a vif gets created. |
| Outcomes: Synnefo running with Xen as the underlying hypervisor |
| GSoC: N/A |
| Date of insert: 19/04/2013 |
| Technical contact: Michele Tartara |
| Difficulty: ? |
| Skills Needed: C and some knowledge of the codebase to find the proper place where to implement this |
| Description: Currently, Xen is aware of the reason why an instance was shutdown or rebooted (as described in http://zhigang.org/wiki/XenVirtualMachineShutdown), but it only makes it externally available in its log file, which is extremely long and therefore inefficient to parse. External tools can be interested in obtaining such information. This project aims to find and implement the proper way to export it (for example, by invoking an optional external callback script and passing the name of the instance, the shutdown reason and some other useful information, such as the timestamp). A partial implementation was already proposed previously in http://lists.xen.org/archives/html/xen-devel/2012-03/msg02602.html and can be used as a starting point. |
| Outcomes: Xen provides externally the state change reason of instances. |
| GSoC: N/A |
| Date of insert: 25/04/2013 |
| Technical contact: Karanbir Singh |
| Difficulty: N/A |
| Skills Needed: N/A |
| Description: Better integration of Xen4 and xl tools with CentOS. A better understanding of the challenges around xapi/xen/centos and what that means for people migrating from CentOS-5/xen to Xen4CentOS. |
| Outcomes: N/A |
| GSoC: N/A |
Peer Review Comments
Lars.kurth 13:14, 28 April 2013 (UTC): Will attend
| Date of insert: 25/04/2013 |
| Technical contact: John Garbutt |
| Difficulty: N/A |
| Skills Needed: N/A |
| Description: Work out the story for XAPI, CentOS, Ubuntu and OpenStack . |
| Outcomes: N/A |
| GSoC: N/A |
Peer Review Comments
Lars.kurth 13:14, 28 April 2013 (UTC): Will attend
| Date of insert: 25/04/2013 |
| Technical contact: John Garbutt, Mike McClurg (or other reps from the XAPI team) |
| Difficulty: N/A |
| Skills Needed: N/A |
Description: Currently there are gaps in the XAPI development process. Work with the XAPI team on:
|
| Outcomes: N/A |
| GSoC: N/A |
Peer Review Comments
Lars.kurth 13:14, 28 April 2013 (UTC): Will attend
| Date of insert: 25/04/2013 |
| Technical contact: Jim Fehlig |
| Difficulty: N/A |
| Skills Needed: N/A |
| Description: Also hack on some new features in the libxl driver! |
| Outcomes: N/A |
| GSoC: N/A |
Peer Review Comments
Lars.kurth 13:14, 28 April 2013 (UTC): Will attend
| Date of insert: 13/05/2013 |
| Technical contact: Boris Ostrovsky |
| Difficulty: Not too difficult |
| Skills Needed: Knowledge of perf is helpful. |
| Description: Talk about what needs to be done to provide proper perf support for dom0 (and non-privileged PV guests). While the first cut of this seems to be semi-working, there is a number of open issues that I'd like to discuss |
| Outcomes: Better understanding of system behavior |
| GSoC: N/A |
| Date of insert: 15/05/2013 |
| Technical contact: Daniel Kiper |
| Difficulty: Not too difficult |
| Skills Needed: Knowledge of EFI/ACPI/multiboot/GRUB/GRUB2 stuff |
| Description: Currently Xen itself has EFI support, however, it does not work in all cases. For example Xen on EFI platform could be started only directly from EFI boot loader or EFI shell. It means that EFI + GRUB + Xen does not work. Support for this config was requested many times and I stepped in to solve this issue. Preliminary R&D work is done and some ideas are outlined. Now I would like to discuss them. |
| Outcomes: Verification of ideas |
| GSoC: N/A |
Confirmed Attendees
- Ian Campbell,Citrix
- Dario Faggioli, Citrix
- Javier Fontan, OpenNebula
- Fabian Geisberger, Google
- Daniel Kiper, Oracle
- Lars Kurth, Citrix
- Olivier Lambert, Vates
- Balazs Lecz, Google
- Boris Ostrovsky, Oracle
- Michele Tartara, Google
- Patrick Tobin, University College Dublin
- Guido Trotter, Google
- Helga Velroyen, Google
- Konrad Wilk, Oracle
- Julien Grall, Citrix
- Stefano Stabellini, Citrix
- Andre Przywara, Calxeda/Linaro
- Julien Fontanet, Vates
- Jonathan Fraser, Broadcom
- Andrew Cooper
- Malcolm Crossley
- David Vrabel
- Dimitris Aragiorgis, GRNET
- Stratos Psomadakis, GRNET
- Karanbir Singh, CentOS
- Anthony Perard
- John Garbutt, Rackspace
- George Dunlap, Citrix
- Matt Wilson, Amazon Web Services
- Jim Fehlig, Suse
- Anil Madhavapeddy, Cambridge University
- Jonathan Ludlam
- Rob Hoes
- Dave Scott
- Wei Liu, Citrix
- Roger Pau Monné, Citrix
People that have been granted an invite but have not yet confirmed
- Kelly Kingsley
- Frank Fowley, DCU
