2015 Cambridge DevSummit ('BSDCam')

The 2015 Cambridge DevSummit was scheduled for 17–19 August. You can also find a city map, building floor plans, and overall schedule at bsdcam.cl.cam.ac.uk. When registering, please also add yourself to the attendee list below, and be sure to add potential discussion/presentation topics for sessions you might be interested in participating in. The event is run "un-conference style" in that we brainstorm the actual session schedule on the first morning, with a focus on interactive topics that reflect the interests and exploit the knowledge of the attendees -- but there's also room for traditional talks, etc. There are plenty of break-out rooms for small groups to meet as they see fit.

Contents

2015 Cambridge DevSummit ('BSDCam')

Group Photo

201508DevSummitGroupPhoto.jpg

Schedule

The rough schedule was on the on the DevSummit website.

The main Devsummit room is FW11 (First floor, Northwest corner of the building); other rooms are available for break-out sessions and working groups. Coffee will be provided prior to events starting at 10:00; lunch is at roughly 12:00 each day; we plan to conclude technical sessions at 17:00(ish). Lunch has been arranged (and is included in registration), and dinner bookings will be made (not included in your registration, except for the formal dinner). We will confirm dinner head counts each morning in order to size reservations suitably. Note that the Tuesday-night dinner required an advanced RSVP, and no further seats are available. William Gates Building floor maps can be found below.

	Sunday	Monday	Tuesday	Wednesday
Morning		FW11: Brainstorming / FW11: Storage	FW11: Tracing / FW26: ABIs/emulation	FW11: Testing / FW26: Power
Lunch
After lunch		FW11: Networking / FW26: Packaging	FW11: Capsicum	FW11: Teaching / FW26: More packages
Break
Afternoon		FW11: ARMv8	FW11: Toolchain/LLVM / FW26: Cloudy things	FW11: RISC-V / FW26: Security/crypto
Break
Evening	7pm: The Maypole	7pm: Wildwood	7pn: Murray Edwards	6:30pm: Cafe Rouge

Short Talks

We will have a couple of slots for short talks, to present your current work, brainstorm or ask for feedback on smaller items. Must not overlap with working groups. Please add your talk suggestions here:

Title	Speaker	Description	Slides, Notes
Introduction to bhye-on-arm	MihaiCarabas	Current work of running a VM with bhyve on ARM platforms	Slides
Hardware trace for software analysis	Al Grant	Explains how the trace features on many ARM processors can be used for deep performance analysis and post-mortem debugging	Slides
x86 ISA formal model	WarrenHunt	In-progress formal modelling of the x86 ISA and potential implications for FreeBSD QA
Towards Power Management for FreeBSD	Robin Randhawa	An overview of ARM's Energy Aware Scheduling - aiming to kickstart discussions to get an implementation of EAS for FreeBSD	Slides

Working Groups

If you would like to run a working group, please add your name below:

Title	Organiser	Preferred day(s)	Brief description
Capsicum and CloudABI	rwatson, ed, et al		Discussion of ongoing Capsicum model enhancements, the implementation, and applications
Teaching with FreeBSD	rwatson, gnn		Cambridge's L41 masters course; undergraduate material; making FreeBSD a better platform for teaching
Random Number Generator	markm		Discussion of future direction of random(4) and random(9)
arm{,64}	andrew	Monday	Status, what's needed for Tier 1, how to play nicely with Linux, etc.
Toolchain and runtimes for 11.0	emaste		Clang, LLVM, LLDB, ELF Tool Chain, csu, unwinder
FreeBSD/RISC-V port	emaste, br		Sketch out a FreeBSD port to the RISC-V ISA from Berkeley
Securing Software Build and Distribution	emaste		Source traceability, build reproducibility, binary artifact transparency and related topics
Universal Config Files with libUCL	allanjude		Converting many one-off config files to a single universal format
ABI emulation	allanjude, ed, xmj	Tuesday	State of the art of ABI emulation on FreeBSD (Linuxulator, CloudABI, Cheri), identifying things to do
Cloudy Things	cperciva		Things related to FreeBSD and clouds
Tracing	rwatson, gnn		All things tracing, including DTrace and its interaction with the rest of our systems
Networking	gnn		New features and planning for the network stack
Testing	benno		Discussion of testing of FreeBSD

Maps

Map of Cambridge, with the Computer Lab, accommodation, and pub to meet at on the first day, marked.

William Gates Building

Floor plans are available here: Maps of the William Gates Building and surrounding area.

You are specially interested in the 1st floor (EU/UK counting: ground, 1st, 2nd), WGB 1st floor room map

Logistics

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 or Gatwick. With the exception of Luton Airport, rail offers a more convenient but more expensive route to Cambridge than bus.

Please note: during the summer, rail service in and out of Cambridge is sometimes disrupted on Sundays due to rail works on the track between London Kings Cross and Cambridge. Attendees are encouraged to avoid the need to travel by rail on Sundays.

Lodging

Please book accommodation via University Rooms. We have reserved some rooms in St. Catherine's College (£69/night B&B), for which we have a group code (instructions for booking these are in the announcement email), but feel free to pick any of the nearby colleges. Murray Edwards, Fitzwilliam, and Churchill are all within easy walking distance (10-15 minutes) of the DevSummit and the city centre. Cycling from any of the city centre colleges to the computer lab should take around 10 minutes, possibly 15 if you have to dodge pedestrians as you cross the centre.

Currently, Churchill has some cheap rooms with shared bathrooms, so would be a good choice for people wishing to reduce costs. Avoid Homerton, unless getting fit by cycling long distances is one of your goals for the DevSummit.

Bike Hire and Collection

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 and you probably won't want to drive near Cambridge. The roads were designed for horses and have adapted well to bicycles, but not to anything larger.

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.

Network access

We will hand out "Lapwing tickets" during the opening session; these are preferred to the open WGB access point due to using JANET rather than a commercial DSL line. See http://www.ucs.cam.ac.uk/network/rules for University network access rules (AUP). Plan on bringing an Ethernet cable for possible wired access in your room (depending on accommodation).

Using eduroam (UniOfCam) with tickets on FreeBSD

I am not sure if you need the CA cert but I downloaded it following UCS instructions from: http://www.ucs.cam.ac.uk/mobiledevices/certificate-conversion.html
The main trick was that UCS requires the outer (anonymous) identity to either be your real user name (which you normally do not want) or be empty.
The identity (UniOfCam Ticket-Id) can be supplied with both the three dashes or without, so keeping it in seemed natural.
The main thing pb helped me to find was that the Realm needs to be @wireless.cam.ac.uk:  http://www.ucs.cam.ac.uk/network/other/radius#lapwing-tickets

So here's a wpa_supplicant.conf that (once) worked for me.

network={
      ssid="eduroam"
      key_mgmt=WPA-EAP
      eap=TTLS PEAP
      phase1="peaplabel=0"
      phase2="auth=MSCHAPV2"
      anonymous_identity="@wireless.cam.ac.uk"
      identity="xxx-xxx-xxx@wireless.cam.ac.uk"
      password="xxxxxxxx"
      ca_cert="/tmp/AddTrustExternalCARoot.crt"
}

Note:  in case you previously were using "lapwing" you want to change that, as the system was renamed mid-2014.  /bz

This is what cperciva needed to get eduroam working using his credentials from a Canadian university; allegedly all Canadian universities do eduroam the same way, so this may be useful for members of other Canadian universities:

network={
        ssid="eduroam"
        proto=WPA WPA2
        key_mgmt=WPA-EAP
        eap=PEAP
        group=CCMP TKIP
        identity="cperciva@sfu.ca"
        password="XXXXXXXX"
}

Travel coordination

Registration is on the Cambridge Computer Laboratory website. The fee is £75, which covers the costs of lunches, badges, shirts, etc.

You can co-ordinate travel and find people staying in the same place as you here:

Name	FreeBSD.org login	Arrival Date	Departure Date	Lodging
MathieuArnold	mat	2015-08-15	2015-08-20	St. Caths
GavinAtkinson	gavin	2015-08-17	2015-08-20	Churchill College
SofianBrabez	sbz	2015-08-16	2015-08-20	Sidney Sussex
RuslanBukin	br	local	local	Home
MihaiCarabas	mihai	2015-08-17(W6 3001)	2015-08-20	Westminster College
DavidChisnall	theraven	local	local	Home
BaptisteDaroussin	bapt	2015-08-16	2015-08-20	Sidney Sussex
BradDavis	brd	2015-08-15	2015-08-20	Sidney Sussex
BrooksDavis	brooks	2015-08-10	2015-08-22	Westminster College
AllanJude	allanjude	2015-08-16 (AC858)	2015-08-20 (AC849)	St. Caths
ScottLong	scottl	2015-08-17	2015-08-17	London (SIGCOMM)
EdMaste	emaste	2015-08-16 (AC848)	2015-08-21 (AC857)	Westminster College
JohannesMeixner	xmj	2015-08-16	2016-08-20
MarkMurray	markm	local	local	Home
GeorgeNevilleNeil	gnn	local(ish)	local(ish)	HAFH
ColinPercival	cperciva	2015-08-15 (BA835)	2015-08-20 (AC865)	St. Caths
BennoRice	benno	2015-08-16 (VS108)	2015-08-20 (DL36)	Westminster College
EdSchouten	ed	2015-08-16 (FR294)	2015-08-20 (FR9273)	Murray Edwards College
MatthewSeaman	matthew	2015-08-16	2015-08-20	St. Caths
DagErlingSmørgrav	des	2015-08-16	2015-08-20	Westminster College
VsevolodStakhov	vsevolod	local	local	Home
AndrewTurner	andrew	local	local	Home
RobertWatson	rwatson	local	local	Home
MariuszZaborski	oshogbo	2015-08-16	2015-08-20
BjoernZeeb	bz	local	local	Home

Developers are welcome to invite guests to attend the developer summit, subject to their tolerance for ceaseless hours of kernel-hacking, and availability of space at the venue.

Name	Host	Arrival Date	Departure Date	Lodging
EricLeBlan	DavidChisnall	-	-	-
PieteBrooks	RobertWatson	local	local	local
MichaelBrinke-Engel	DavidChisnall	local	local	local
AndreasFiessler	DavidChisnall	-	-	-
Al Grant	GeorgeNevilleNeil	local	local	local
KhilanGudka	RobertWatson	local	local	local
WarrenHunt	RobertWatson	local	local	local
SevanJaniyan	RobertWatson	2015-08-16	2015-08-20	Jesus College
Milosz Kaniewski	MariuszZaborski	2015-08-16	2015-08-20
VassilisLaganakos	RobertWatson	local	local	local
TheoMarkettos	RobertWatson	local	local	local
DimitrisPapastamos	RobinRandhawa	local	local	local
DanielPeyrolon	GeorgeNevilleNeil	2015-08-16 (FR9015)	2015-08-20 (FR9014)	Clare College
RobinRandhawa	RobertWatson	local	local	local
AlexanderRichardson	RobertWatson	local	local	local
PhilippeRobin	DavidChisnall	local	local	local
MarkRutland	AndrewTurner	-	-	-
PeterSmith	MarkMurray	local	local	local
ArunThomas	RobertWatson	2015-08-16	2015-08-22	Westminster College
KonradWitaszczyk	MariuszZaborski	2015-08-16	2015-08-20
MarcinWojcik	DavidChisnall	-	-	-

CategoryHistorical