Archived/Hackathon/April2016: Difference between revisions

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{{InfoLeft|Registration his now open}}

== When and Where ? ==
== When and Where ? ==


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ARM will be hosting this years Xen Project Hackathon on April 18-19, 2016 at their Cambridge Headquarters.
ARM will be hosting this years Xen Project Hackathon on April 18-19, 2016 at their Cambridge Headquarters.


== Session Notes and related pages ==
Address:
* Security : [http://lists.xenproject.org/archives/html/xen-devel/2016-04/msg02350.html Notes from Security Session] covering lightweight QEMU, de-priv of QEMU and x88 emulator, XSplice, XSA's and disaggregation, Enabling XSM By default
: ARM Ltd.
** XSM as Default : [[XSMAsDefault TODO List]]
: 110 Fulbourn Road
* Clarifying Maintainership: [http://lists.xenproject.org/archives/html/xen-devel/2016-04/msg02429.html Notes from "Clarifying Maintainership" discussion]
: Cambridge
* [http://lists.xenproject.org/archives/html/xen-devel/2016-04/msg02430.html Restartable driver domains and restartable dom0 notes]
: CB1 9NJ
* [http://lists.xenproject.org/archives/html/xen-devel/2016-04/msg02570.html Toolstack session]
: United Kingdom
* [http://lists.xenproject.org/archives/html/xen-devel/2016-04/msg02565.html PVH session notes]

* [http://lists.xenproject.org/archives/html/xen-devel/2016-04/msg02564.html libxl refactoring session notes]
'''[https://www.google.co.uk/maps/search/ARM+Ltd.+110+Fulbourn+Road+Cambridge+GB-CB1+9NJ/@52.185975,0.189242,17z/data=!3m1!4b1 Check out the event location on the map]'''
* [http://lists.xenproject.org/archives/html/xen-devel/2016-04/msg02563.html libxl storage plugin session notes]

* [http://lists.xenproject.org/archives/html/xen-devel/2016-04/msg02562.html xSplice session notes]
=== Schedule & Rooms ===
* [http://lists.xenproject.org/archives/html/xen-devel/2016-04/msg02561.html Data path and tapdisk3 session notes]
We will start at 9AM and finish at 5PM each day. There will also be an evening social event on April 18th. More details regarding the schedule and the social event will follow.
* [http://lists.xenproject.org/archives/html/xen-devel/2016-05/msg00475.html Xen - ARM Status notes]

* [http://lists.xenproject.org/archives/html/xen-devel/2016-05/msg00476.html Mini-OS on ARM notes]
== Logistics ==
* [http://lists.xenproject.org/archives/html/xen-devel/2016-05/msg00477.html PCI Passthrough on ARM notes]

=== Getting to Cambridge, UK ===

Cambridge, UK is located approximately 45 minutes North of London by train, with easy access by bus or train to [St. Pancras International - Eurostar (45m rail), London Stansted Airport (40m rail), London Heathrow Airport (LHR - 2h rail), London Gatwick Airport (LGW - 2h rail), Manchester Airport (MIA - 4h rail), London Luton Airport (1h25m bus). European attendees may consider '''Eurostar''' or '''Stansted Airport''' preferred routes due to short transit time to Cambridge and lower prices.

Visitors from the US or elsewhere will likely need to travel into one of London's major international airports, such as Heathrow (LHR) or Gatwick (LGW). With the exception of Luton Airport, rail offers a more convenient but more expensive route to Cambridge than bus, but will require using a combination of Heathrow Express/Tube and Rail (cost is approx. GBP 50-60). There are also several car service companies which arrange transfers from London Heathrow to Cambridge. The trip takes about 1.5-2 hours depending on the time of day.
* [http://www.onlineairportcars.com/heathrow/car-service-heathrow-to-cambridge-cabs-lhr-airports-transfers-heathrow-and-other-major-airports.php Online Airport Cars] (GBP 94 one way)
* [http://www.taxicambridge.co.uk/ Taxi Cambridge] (GBP 95 one way)
* [http://www.airporttaxis-uk.co.uk/Transfer/Cambridge-LHR/Heathrow/ Airport Taxis UK] (GBP 103 one way)
* [http://www.cambridgeconnections.co.uk/airport-transfers Cambridge Connections] (quote required)
* Note that Ueber is also available and comes in at around GBP 110-150 one way
Relevant public transport information (from London Heathrow)
* The best way to go from London Heathrow to Cambridge by rail is via ''Heathrow Express'' (cyan), then London Underground via the ''Hammersmith and City line'' (pink) or ''Circle Line'' (yellow) to Kings Cross. The following map outlines [https://thetrainline.files.wordpress.com/2015/07/lhr_train_map.gif train connections from London Heathrow].
* Once you get to Kings Cross the [https://tomhalltravel.files.wordpress.com/2009/12/king-cross-upgrade-map2.gif station map] shows you where to arrive and where the platforms are. Usually trains to Cambridge go from platforms 9-11, but not always. Make sure you check the departure boards in the ticketing hall to get the right platform:
* Note that there are slow and fast trains to Cambridge from Kings Cross (fast trains usually leave at 14 and 44 minutes past the hour - the fast train takes 52 minutes, the slow trains 1h 24 to 1h 34 minutes). You want to take a fast train.
* The Heathrow Express ticket desk can sell you a through ticket from Heathrow to Cambridge which includes the tube
* You can book individual train tickets in advance via the following sites: there are no options to book a through ticket - you have to get tickets separately. If you book timed tickets, you have to catch a specific train.
** Self-print tickets via [http://www.mytrainticket.co.uk/self-print-tickets] (does not include tickets for Heathrow Express or tube tickets)
** You can buy [https://www.heathrowexpress.com Heathrow Express tickets on-line], or from Heathrow Express staff before you get to the baggage hall at Heathrow or at the Heathrow Express entrance
** Payment options for Tube (London Underground) tickets are listed [https://tfl.gov.uk/campaign/ways-to-pay?cid=waystopay here] - the easiest way to pay is via a [https://tfl.gov.uk/fares-and-payments/contactless?intcmp=8257 contactless credit or debit card]

=== Recommended Hotel Options ===
We are identifying suitable hotel options as we speak. We will select a mixture of hotels in the city centre and near the railway station.

<br>
{| class="prettytable"
|-
! Hotel / Booking URL
! Address
! Review
! Distance to venue
! Location
|-
! [http://www3.hilton.com/en/hotels/united-kingdom/hilton-cambridge-city-centre-STNHCHI/index.html Hilton Cambridge City Centre]
| Downing St<br>Cambridge<br>CB2 3DT
| [http://www.tripadvisor.co.uk/Hotel_Review-g186225-d189358-Reviews-Hilton_Cambridge_City_Centre-Cambridge_Cambridgeshire_England.html 4.5]
| 3.7 miles (or 15-25 minutes by taxi)
| City centre
|-
![https://www.travelodge.co.uk/hotels/255/Cambridge-Central-hotel Travelodge Hotel Cambridge Central]
| Cambridge Leisure Park<br>Clifton Way<br> Cambridge<br>CB1 7DY
|[http://www.tripadvisor.co.uk/Hotel_Review-g186225-d446834-Reviews-Travelodge_Cambridge_Central_Hotel-Cambridge_Cambridgeshire_England.html 3.5]
|2.7 miles (or 10 to 20 minutes by taxi)
|Railway station
|-
![http://www.sorrentohotelcambridge.co.uk/ Sorrento Hotel]
|196 Cherry Hinton Rd<br>Cambridge<br>CB1 7AN
|[http://www.tripadvisor.co.uk/Hotel_Review-g186225-d446834-Reviews-Travelodge_Cambridge_Central_Hotel-Cambridge_Cambridgeshire_England.html 3]
|2.2 miles (or 10 to 15 minutes by taxi, <br>12-15 minutes by [https://www.cambridgeshire.gov.uk/site/custom_scripts/bus_timetable_by_service.aspx citi 3 bus] which goes every 10 minutes)
|Railway station
|-
![http://www.expresscambridge.co.uk/ Holiday Inn Express Cambridge]
|15-17 Coldhams Park<br>Norman Way<br>Cambridge<br>CB1 3LH
|[http://www.tripadvisor.co.uk/Hotel_Review-g186225-d291602-Reviews-Holiday_Inn_Express_Cambridge-Cambridge_Cambridgeshire_England.html 4]
|1.5 miles (or 10 to 15 minutes by taxi)
|Suburb
|}
<br>


=== Transport in Cambridge ===
The following taxi companies operate in Cambridge
* [http://www.panthertaxis.co.uk/ Panther Taxis] (+44 (0)1223 715715)
* [http://www.taxicambridge.co.uk/ Taxi Cambridge] (+44 (0) 1223 929 026)
* Note that Uber does '''not''' operate in Cambridge and that it is nearly impossible to hail taxis on the street
* The Citi Bus 3 has a stop directly at the ARM campus ("Cherry Hinton Limedale Close", the stop after the "Robin Hood Eating Inn" restaurant). The bus goes along Newmarket Street, through the city centre and past the station. Please plan for some extra time, as the bus can take a bit longer due to traffic in the morning. A single ticket is about 2 £, but a "Dayrider" is 4.10 £ and is valid for the whole day.
* Cambridge is slightly too large to be convenient to walk everywhere, but small enough to be ideal for a bicycle. If you have a car, please be aware that you will not be able to drive in the city centre. If you feel adventurous, you could hire a bicycle. [http://stationcycles.co.uk/ Station Cycles] (confusingly located in the middle of town, nowhere near the station) rents bicycles at a reasonable rate. Please book with them directly. You can probably just turn up and get a bike but it's better to send them an email to make sure that they're not going to be surprised when 30 people turn up at once.
<br>

=== Visa Invitation Letters ===
If you require an invitation, please send an e-mail to community dot manager at xenproject dot org. You should make sure that you have at least 2 weeks to organise a visa. Please provide the following information. You may want to send this as GPG encrypted mail, in which case you should send the mail to lars dot kurth dot xen at gmail dot com. You can look up my public GPG key from the hkps://hkps.pool.sks-keyservers.net keyserver.

==== Personal Information ====
* Name (needs to be your full name as written in your passport, including middle names)
* Gender
* Date of birth
* Nationality
* Passport number
* Full name of the company which you work for
* Job title


== Topics to Discuss, Code, Work on, ... at the Hackathon ==
== Topics to Discuss, Code, Work on, ... at the Hackathon ==
Line 241: Line 160:
are at [http://wiki.xen.org/wiki/XSplice http://wiki.xen.org/wiki/XSplice].
are at [http://wiki.xen.org/wiki/XSplice http://wiki.xen.org/wiki/XSplice].



|Review=
{{comment| Feel free to make suggestions here}}<br>
{{vote|And whether you intend to attend}}
}}


{{project
|Project=Client/Endpoint Virtualization
|Date=April 17 2016
|Contact=Rich Persaud, Ross Philipson, Eric Chanudet, Christopher Clark
|Desc=Discuss topics related to endpoint virtualization and security, including https://www.qubes-os.org and http://openxt.org:
* Can OpenXT provide test data or sample policies to help XSM to be enabled by default in upstream Xen?
* There are two independent PV USB efforts, one focused on Linux and an OpenXT implementation for Windows (used in production for several years) and Linux (relatively new). Can code be shared between them? If not, can a common USB test framework be used to validate both sets of drivers?
* OpenXT is moving closer to upstream OpenEmbedded for dom0, driver VMs and service VMs. What benefits does OpenEmbedded offer to Xen developers?
* How can Xen-based projects reuse common code for measured launch and measured upgrade? Implementations exist in XenServer, Qubes and OpenXT.
* Current status of interactions between libxl and garbage-collected languages like Ocaml & Haskell. Options for moving Ocaml/Haskell toolstacks to service VMs while keeping libxl in dom0.
* Display manager and input virtualization techniques for client use cases, including graphics composition and multi-touch.
* VHD encryption and blktap2/3.
* If uXen source code becomes public, is there Xen Project interest in maintaining uXen for use as a Xen Type-2 VMM in native Windows, and as a nested hypervisor within Windows guests on Xen?
* Is there work in the NFV telco community on standardized packaging of network driver/service VMs that could be used in client virtualization?
* Is there community interest in collaborating on the implementation of Virtual TPM and Secure Boot support for Xen Windows guests? Windows requires early boot (emulated) access to the Virtual TPM, before PV drivers can be loaded.


|Review=
|Review=
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{{Anchor|Request}}
{{Anchor|Request}}


=== Request invitation ===

Add your name and org here:

<!-- You can use one of the following syntax patterns
* Name, Org
{{Invite|Name|Org|IRC handle}}
{{Invite|Name|Org|IRC handle|arrival date|leave date|lodging}}

-->


=== Confirmed attendees ===
=== Confirmed attendees ===

Latest revision as of 18:07, 15 March 2019

When and Where ?

ARM Cambridge, UK, April 18-19

ARM will be hosting this years Xen Project Hackathon on April 18-19, 2016 at their Cambridge Headquarters.

Session Notes and related pages

Topics to Discuss, Code, Work on, ... at the Hackathon

Instructions

Topics

Please add topics you want to discuss in this section as described above


Project Governance

Date of insert: Feb 26 2016; Verified: Not updated in 2020; GSoC: Unknown
Technical contact: Lars Kurth
Mailing list/forum for project: xen-devel@
IRC channel for project: #xen-devel
Difficulty: Unknown
Skills Needed: Unknown
Description: We do have a number of concrete issues regarding governance that we need to discuss
  • Project Leadership : will we go for a committee or project lead based approach, if the former how does it look
  • Review roles in the community : clarify boundaries and responsibilities
  • Decision making
    • Clarify Lazy Consensus and scope it (when does, does it not apply)
    • Clarify voting: scope, how +2 ... -2 and do votes have to be unanimous
  • Add some criteria for roles lapsing (right now, people retain their status forever, unless they formally step down)
  • Etc
Outcomes: Not specified, project outcomes
Peer Review Comments
Pictogram voting comment 15px.png  Feel free to make suggestions here

Pictogram vote 15px.png And whether you intend to attend:


Code Review Dashboard (Demo and next steps)

Date of insert: Apr 7 2016; Verified: Not updated in 2020; GSoC: Unknown
Technical contact: Lars Kurth
Mailing list/forum for project: xen-devel@
IRC channel for project: #xen-devel
Difficulty: Unknown
Skills Needed: Unknown
Description: The Advisory Board has funded the creation of a quite sophisticated dashboard that should help both contribitors and reviewers of patches to better understand and manage code reviews within the project

What I wanted to do is

  • Walk through the fundamentals
  • Demo some core use-cases
  • Get some feedback on next steps
  • Do a bit of hands-on / interactive usage with interested people
Outcomes: Not specified, project outcomes
Peer Review Comments
Pictogram voting comment 15px.png  Feel free to make suggestions here

Pictogram vote 15px.png And whether you intend to attend:


Security

Date of insert: Jan 19 2016; Verified: Not updated in 2020; GSoC: Unknown
Technical contact: Konrad Rzeszutek Wilk
Mailing list/forum for project: xen-devel@
IRC channel for project: #xen-devel
Difficulty: Unknown
Skills Needed: Unknown
Description: Discuss our multiple approaches to security and further goals:
  • Deprivileged of QEMU - and the leftover TODO (PCI passthrough?)
  • xSplice for patching hypervisor with XSA updates (should xen-security send out instructions on how to build binaries)? Make sure that the patches function nicely with xSplice tool?
  • Instruction parser in Xen hypervisor? Existing approaches to depriv it - other means to lower the performance impact?
  • Spell out limits of security support for qemu-xen and/or make QEMU an external dependency to Xen (also see [1]
  • Hypervisor defence in depth
  • Other security related improvements
Outcomes: Not specified, project outcomes
Peer Review Comments
Pictogram voting comment 15px.png  Feel free to make suggestions here

Pictogram vote 15px.png And whether you intend to attend:


Lost+found Patches

Date of insert: Feb 15 2016; Verified: Not updated in 2020; GSoC: Unknown
Technical contact: Konrad Rzeszutek Wilk
Mailing list/forum for project: xen-devel@
IRC channel for project: #xen-devel
Difficulty: Unknown
Skills Needed: Unknown
Description: Discuss "lost patches" that have floated around and haven't been addressed:
  • TLB flushing on grant table unmmap?
  • Memory scrubbing workers?
  • Various "worker" functions we want to run from cpu_idle
  • Other distros patches?
  • per-cpu tasklets to lessen the tasklet spinlock contention

Some of these had been posted 2 years ago and while the authors are still around they have a huge TODO list that. Brainstorm:

  • Can we put all of those in a 'outstanding' patch queue?
  • Could we put some of those on an GSOC or Outreachy internships?
  • Other ideas?
Outcomes: Not specified, project outcomes
Peer Review Comments
Pictogram voting comment 15px.png  Feel free to make suggestions here

Pictogram vote 15px.png And whether you intend to attend:


Fate of qemu stubdom

Date of insert: March 17 2016; Verified: Not updated in 2020; GSoC: Unknown
Technical contact: Wei Liu
Mailing list/forum for project: xen-devel@
IRC channel for project: #xen-devel
Difficulty: Unknown
Skills Needed: Unknown
Description: Discuss what to do with stubdom
  • Mini-os based qemu-trad stubdom starts to bitrot.
  • Rumpkernel based qemu stubdom is not yet ready.
  • Need to clarify support status.
Outcomes: Not specified, project outcomes
Peer Review Comments
Pictogram voting comment 15px.png  Feel free to make suggestions here

Pictogram vote 15px.png And whether you intend to attend:


HVMlite/PVHv2 roadmap

Date of insert: April 9 2016; Verified: Not updated in 2020; GSoC: Unknown
Technical contact: Boris Ostrovsky, Andrew Cooper, Roger Pau Monné
Mailing list/forum for project: xen-devel@
IRC channel for project: #xen-devel
Difficulty: Unknown
Skills Needed: Unknown
Description: Discuss what's missing for HVMlite/PVHv2:
  • ACPI.
  • Dom0 support.
  • PCI-passthrough.
  • Missing ABI bits?
And the roadmap to implement them.
Outcomes: Not specified, project outcomes
Peer Review Comments
Pictogram voting comment 15px.png  Feel free to make suggestions here

Pictogram vote 15px.png And whether you intend to attend:



xSplice

Date of insert: Apr 15 2016; Verified: Not updated in 2020; GSoC: Unknown
Technical contact: Konrad Rzeszutek Wilk
Mailing list/forum for project: xen-devel@
IRC channel for project: #xen-devel
Difficulty: Unknown
Skills Needed: Unknown
Description: Discuss "xSplice' and what priorities we want for the remaining work. The current TODOs are at http://wiki.xen.org/wiki/XSplice.
Outcomes: Not specified, project outcomes
Peer Review Comments
Pictogram voting comment 15px.png  Feel free to make suggestions here

Pictogram vote 15px.png And whether you intend to attend:


Client/Endpoint Virtualization

Date of insert: April 17 2016; Verified: Not updated in 2020; GSoC: Unknown
Technical contact: Rich Persaud, Ross Philipson, Eric Chanudet, Christopher Clark
Mailing list/forum for project: xen-devel@
IRC channel for project: #xen-devel
Difficulty: Unknown
Skills Needed: Unknown
Description: Discuss topics related to endpoint virtualization and security, including https://www.qubes-os.org and http://openxt.org:
  • Can OpenXT provide test data or sample policies to help XSM to be enabled by default in upstream Xen?
  • There are two independent PV USB efforts, one focused on Linux and an OpenXT implementation for Windows (used in production for several years) and Linux (relatively new). Can code be shared between them? If not, can a common USB test framework be used to validate both sets of drivers?
  • OpenXT is moving closer to upstream OpenEmbedded for dom0, driver VMs and service VMs. What benefits does OpenEmbedded offer to Xen developers?
  • How can Xen-based projects reuse common code for measured launch and measured upgrade? Implementations exist in XenServer, Qubes and OpenXT.
  • Current status of interactions between libxl and garbage-collected languages like Ocaml & Haskell. Options for moving Ocaml/Haskell toolstacks to service VMs while keeping libxl in dom0.
  • Display manager and input virtualization techniques for client use cases, including graphics composition and multi-touch.
  • VHD encryption and blktap2/3.
  • If uXen source code becomes public, is there Xen Project interest in maintaining uXen for use as a Xen Type-2 VMM in native Windows, and as a nested hypervisor within Windows guests on Xen?
  • Is there work in the NFV telco community on standardized packaging of network driver/service VMs that could be used in client virtualization?
  • Is there community interest in collaborating on the implementation of Virtual TPM and Secure Boot support for Xen Windows guests? Windows requires early boot (emulated) access to the Virtual TPM, before PV drivers can be loaded.
Outcomes: Not specified, project outcomes
Peer Review Comments
Pictogram voting comment 15px.png  Feel free to make suggestions here

Pictogram vote 15px.png And whether you intend to attend:

I want to attend

Request an Invitation

In previous years we have requested for attendees to fill out a form and request an invitation. This was overly complicated, so we will revert back to a simpler approach. Please add your name to the list below.

  • If you are a maintainer or otherwise a core member of the community, just add yourself to the Confirmed Attendees section stating your name and
  • If you are not a maintainer add yourself the Request invitation. If your email address is not known in the Xen Community, please also add the name of your employer and send your e-mail address to community dot manager at xenproject dot org using "Request for Hackathon 2016 Invite" as subject line. This is important, such that we can e-mail more information to you. We will monitor this page and confirm whether we have space for you to attend.

You can use ...

* Name, Org

Or

{{Invite|Name|Org|IRC handle}}

Or to be able to co-ordinate travel and find people staying in the same place as you, ...

{{Invite|Name|Org|IRC handle|arrival date|leave date|lodging}}

IMPORTANT: The cut-off date for registrations is April 8th.

Please read the text in the warning box below: it contains more detailed instructions.

Icon Ambox.png To edit this page and thus to Request an Invitation, you need to be added to the wiki's editors group. To be added to that group:
  • If you do not have a wiki account, please create one by using this link. Write down your user name (we cannot look up user names from e-mail addresses)
  • Please fill out this form (note: this form does not work in China)
  • If you cannot access the form, please send an email to community.manager at xenproject.org requesting that you need wiki access.


Confirmed attendees

Icon Info.png Important note:
  • We have a maximum of 43 spaces
  • The cut-off for registration is April the 8th, as we need to organise security passes, etc.


If you are a maintainer or otherwise known in the Xen Project community please add your name below,


  1. Lars Kurth, Citrix (IRC: lars_kurth, arriving: April 17, leaving: April 20, lodging: TBD)
  2. David Vrabel, Citrix (IRC: dvrabel, arriving: -, leaving: -, lodging: Home)
  3. Paul Durrant, Citrix (IRC: xadimgnik, arriving: April 17, leaving: April 20, lodging: Home)
  4. Andrew Cooper, Citrix (IRC: andyhhp, arriving: -, leaving: -, lodging: Home)
  5. Rich Persaud, OpenXT, BAE Systems (IRC: -, arriving: April 17, leaving: April 19, lodging: TBD)
  6. Stefano Stabellini, N/A (IRC: stefanos, arriving: April 17, leaving: April 19, lodging: TBD)
  7. Julian Chesterfield, OnApp (IRC: -, arriving: April 17, leaving: April 19, lodging: TBD)
  8. Michail Flouris, OnApp (IRC: -, arriving: April 17, leaving: April 19, lodging: TBD)
  9. Anastassios Nanos, OnApp (IRC: -, arriving: April 17, leaving: April 19, lodging: TBD)
  10. Anthony PERARD, Citrix (IRC: anthonyper, arriving: N/A, leaving: N/A, lodging: N/A)
  11. Dario Faggioli, Citrix (IRC: dariof, arriving: April 17, leaving: April 21, lodging: Victoria Guesthouse (Arbury Road 57))
  12. Wei Liu, Citrix (IRC: -, arriving: -, leaving: -, lodging: TBD)
  13. Roger Pau Monné, Citrix (IRC: royger, arriving: -, leaving: -, lodging: TBD)
  14. Jan Beulich, SUSE (IRC: jbeulich, arriving: April 17, leaving: April 20, lodging: Sorrento)
  15. Max FERGER, KOSTAL Automotive Electrical Systems (IRC: -, arriving: April 18, leaving: April 19, lodging: Cambridge Central Travelodge)
  16. Boris Ostrovsky, Oracle (IRC: ostr, arriving: April 17, leaving: April 20, lodging: TBD)
  17. Daniel Kiper, Oracle (IRC: dkiper, arriving: April 17, leaving: April 20, lodging: TBD)
  18. Joao Martins, Oracle (IRC: -, arriving: April 17, leaving: April 20, lodging: TBD)
  19. Konrad Rzeszutek Wilk, Oracle (IRC: konrad, arriving: April 17, leaving: April 20, lodging: TBD)
  20. Olivier Lambert, Vates (IRC: Plam, arriving: April 17, leaving: April 20, lodging: TBD)
  21. Julien Fontanet, Vates (IRC: julien_f, arriving: April 17, leaving: April 20, lodging: TBD)
  22. Ross Lagerwall, Citrix (IRC: rosslagerwall, arriving: -, leaving: -, lodging: Home)
  23. Iurii Konovalenko, GlobalLogic (IRC: iurii.konovalenko, arriving: April 17, leaving: April 19, lodging: TBD)
  24. Juergen Gross, SUSE (IRC: juergen_gross, arriving: April 17, leaving: April 20, lodging: Sorrento)
  25. Han Yongfei, Onets (IRC: -, arriving: April 17, leaving: April 20, lodging: TBD)
  26. Ross Philipson, Assured Information Security (IRC: rphilipson, arriving: N/A, leaving: N/A, lodging: N/A)
  27. Doug Goldstein, Star Lab (IRC: cardoe, arriving: April 17th, leaving: April 20th, lodging: Holiday Inn Express Cambridge)
  28. Ian Jackson, Citrix (IRC: Diziet, arriving: April 18th 17:08 at CBG station , leaving: n/a , lodging: home)
  29. Julien Grall, ARM (IRC: julieng, arriving: N/A, leaving: N/A, lodging: N/A)
  30. Steve Capper, ARM (IRC: SteveCapper, arriving: N/A, leaving: N/A, lodging: N/A)
  31. Andre Przywara, ARM (IRC: apritzel, arriving: N/A, leaving: N/A, lodging: N/A)
  32. Olaf Hering, SUSE (IRC: N/A, arriving: N/A, leaving: N/A, lodging: N/A)
  33. James McKenzie, Bromium Inc (IRC: jmm, arriving: - , leaving: - , lodging: home)
  34. Eric Chanudet, Assured Information Security (IRC: ericch, arriving: - , leaving: - , lodging: -)
  35. George Dunlap, Citrix (IRC: gwd, arriving: April 17, leaving: April 19, lodging: home)
  36. Christopher Clark, BAE Systems, OpenXT (IRC: -, arriving: April 17, leaving: April 20, lodging: - )
  37. Matt Fleming, upstream Linux kernel EFI maintainer (SUSE) (IRC: -, arriving: -, leaving: -, lodging: - )
  38. Luis Rodriguez, SUSE (IRC: mcgrof, arriving: April 17, leaving: April 20, lodging: Holiday Inn Express Cambridge)
  39. Anshul Makkar, Citrix (IRC: anshul_m, arriving: N/A, leaving: N/A, lodging: home)
  40. Jennifer Herbert, Citrix (IRC: xenifer, arriving: - , leaving: - , lodging: home)
  41. Jacus de Beer, Citrix (IRC: , arriving: Apr 19, leaving: Apr 19, lodging: home)
  42. Jon Ludlam, Citrix (IRC: jonludlam, arriving: - , leaving: - , lodging: home)