June 2007 - Oberon - mailman3.inf.ethz.ch

New BB release II
by Ulrike Glavitsch 12 Jul '07

12 Jul '07

Dear BB/AOS users here is the test program that I forgot to attach to the previous mail ... Best regards, Ulla Glavitsch -- ETH Zürich Ulrike Glavitsch Eggler Institut für Computersysteme Clausiusstrasse 59 CH-8092 Zürich Tel.: +41 44 632 70 49 Fax : +41 44 632 13 07

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Unix Port of Aos (Linux/Solaris/MacOS)
by Guenter Feldmann 01 Jul '07

01 Jul '07

Hi Oberoners, The second alpha release of UnixAos is now ready for download. It exists in three versions: LinuxAos, SolarisAos and DarwinAos (MacOS X). You will find them in ftp://ftp.informatik.uni-bremen.de/home/fld/oberon/UnixAos/* This release is based on the Bluebottle sources of 21.04.2007 and uses the new object format. Currently the Oberon system is used as user interface. The Bluebottle windowmanager modules are also present but the windowmanager does not get installed yet. Knows problems: - The code for invoking user supplied exception handlers is missing. You get a standard trap view with a corresponding message instead. - The Paco compiler gets slower with every compilation. - Module AosUPD contains mostly dummy routines and is unuseable. It's only there because it was needed for compiling other modules. But the old module NetSystem works and ssh and telnet are usable. -- Guenter

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Unix Port of Aos
by R. Clayton 01 Jul '07

01 Jul '07

On an x86 debian testing system (updated weekly), the second alpha release of UnixAos doesn't find libc.so: $ ~/projects/Aos/package/bin/aos UnixAos Boot Loader 03.04.2007 Unix.dlopen: loading library /lib/libc.so failed Kernel.CallBodies: Initializing Threads Kernel.CallBodies: Initializing Reals [ and so on ] Given that $ locate libc.so /lib/i686/cmov/libc.so.6 /lib/libc.so.6 /usr/lib/libc.so $ poking around in src/x86/Linux/Unix.Mod suggests that replacing libc := Dlopen("/lib/libc.so", 2); with libc := Dlopen("libc.so", 2); should fix it, but I don't know how to incoproate the change into the executable to test it.

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New BB release
by Ulrike Glavitsch 26 Jun '07

26 Jun '07

Dear BB/AOS-users, a new crazy-fresh release of BB/AOS is ready for download under http://www.bluebottle.ethz.ch. After months of development of a new GC that uses meta data for stack inspection a first version of AOS with the new GC is available now. We found that the old GC that uses a heuristic for stack inspection can block the whole system. The test program that causes such a system freeze is attached to this mail (please use the commands Test.TestStack~ to start the test, i.e. creation of 8000 threads with some LONGINT stack values, Test.StartGC 1000 ~ to initiate GC calls and Test.StopGC to stop the GC calls). The system with the old GC will freeze after a few GC calls. The new GC does not have this system freeze problem. A few little things still need to be improved with the new GC. These are mainly: 1) Use of meta data for kernel stacks (kernel stacks are still inspected using the heuristic in the new GC) 2) Inspection of the awaiting queues (solved neither in the old nor in the new GC) Please use this release with caution. If you encounter problems with it please report them to me. Best regards, Ulla Glavitsch -- ETH Zürich Ulrike Glavitsch Eggler Institut für Computersysteme Clausiusstrasse 59 CH-8092 Zürich Tel.: +41 44 632 70 49 Fax : +41 44 632 13 07

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Outlines (Folds) for Wiki
by edgar＠edgarschwarz.de 17 Jun '07

17 Jun '07

Hi, for a long time I liked very much to work with the NO Outline gadgets to structure my notes. That was something I dearly missed in my wiki (MoinMoin) So finally I decided to implement Folds. Just do [[Fold(+This is the title of your closed fold)]] This is the fold contents. [[Fold(=)]] Folds can be nested. '-' gives a fold initially open. For an example see http://www.edgar-schwarz.de/mm/WikiSandBox BTW, I will try to attend the Oberon day at Zürich. Cheers, Edgar

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Oberon Day 2007, 29th June 2007
by Felix Friedrich 11 Jun '07

11 Jun '07

Dear Oberon/Aos users, dear readers, the ETH Zurich organizes an Oberon Day, which will take place soon, at June 29, 2007 in Zurich. This year the Oberon day is directed towards implementation in industry and promises to be a very interesting event. Everybody is highly welcome to participate. We are very much looking forward to meeting you all here! More information on http://www.oberon-industry.ethz.ch, please find a textual form of the invitation flyer below. Felix --------------------- Invitation to the Oberon Day June 29, 2007 Custom-made Software in Industry and Science VisDome ETH Main Building J Floor ETH Zurich Rämistrasse 101 CH-8092 Zurich, Switzerland Contact Ruth Hidalgo ETH Zurich Institute of Computer Systems Clausiusstrasse 59 CH-8092 Zurich, Switzerland E-Mail: hiruth(a)inf.ethz.ch Phone +41 44 632 7233 General Information and Registration: www.oberon-industry.ethz.ch Welcome to the Oberon Day 2007! The Oberon Day welcomes delegates from industry and academia who are interested in developing highest quality software in terms of reliability, safety and efficiency. Participants will get an insight into highly advanced custom systems that have emerged from the long-term collaboration of experts from science and industry. The Oberon Day is, in particular, a platform where Oberon users and developers can share their experiences. A series of talks discuss custom-made applications based on Oberon and its successors, provide a glance behind the scenes, demonstrate the power of simplicity and exemplify the benefits of custom-made software. Live demonstrations will be presented. Technical engineers and everybody else interested in a unique symbiosis of programming language, compiler and runtime system will particularly benefit from attending this event. About Oberon Oberon is the name of both a programming language in the tradition of Pascal/Modula-2 and a lean multi-tasking operating system. The Oberon project was launched in 1985 by Prof. em. Niklaus Wirth and Prof. Jürg Gutknecht at the Institute of Computer Systems at ETH Zurich and is still subject to active further development in different forward-looking directions. Oberon – both language and system – combines the effectiveness and safety of programming on a high abstraction level with the efficiency of optimized machine code. Oberon is used in various fields both in industry and scientific research. Program 8.30-8.45 Reception 8.45-9.00 Introduction Prof. Jürg Gutknecht, ETH Zurich 9.00-9.30 Oberon in Industrial Automatic Control Technology Marcel Rohr, Ralf Schneider Group, DEU 9.30-10.00 Oberon in Real-Time Control Applications Michael McGaw, McGaw Technology Inc., USA 10.00-10.15 Questions and Answers ----- 10.15-11.00 Coffee Break / Live Demonstrations ----- 11.00-11.30 Medical Simulation and Control Based on Oberon PD Dr. Patrick Hunziker, University Hospital Basel, CHE 11.30-12.00 Medical Device Engineering with Oberon Christian Büchel, IMT Information Management Technology AG, CHE 12.00-12.15 Questions and Answers ----- 12.15-13.15 Lunch Break ----- 13.15-13.30 Oberon 20 Years Ago and Today Prof. em. Niklaus Wirth, ETH Zurich 13.30-14.00 Oberon-based Autopilots for Unmanned Aerial Vehicles Jacques Chapuis, weControl AG, CHE 14.00-14.30 A Math Platform in Zonnon Al Freed, NASA, USA 14.30-14.45 Questions and Answers ----- 14.45-15.30 Coffee Break / Live Demonstrations ----- 15.30-16.00 Oberon Script - A Lightweight Compiler and Runtime System for the Web Ralph Sommerer, Independent Software Architect, CHE 16.00-16.30 Test Automation for the Oberon and Minos Systems Brian Kirk, Robinson Associates, GBR

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SMTP tunnel and VPN.
by peasthope＠cablelan.net 10 Jun '07

10 Jun '07

At Mon, 26 Mar 2007 04:54:06 +0800 W B Hacker wrote, > It could, for example, be failing because you have no cert in place. Yes, /var/sys/exim4/mainlog confirmed, 2007-05-17 08:38:28 TLS error on connection from [137.82.26.91] (no TLS server certificate is specified) . According to my understanding of the Wikipedia article on OpenVPN Infrastructure, a tunnel is a special case of a VPN. In the simplest VPN case, a shared static key is used for symmetrical encryption. An authentication certificate is not required. For this VPN I need to make a key on the server and tell exim to use it. Then transport the key to the Oberon and have Guenther's software use it. Probably I can make a 3DES key in Debian. Get exim4 to use it--maybe. Oberon SSH.Tool doesn't mention how to use a given key. Any hints? Thanks, ... Peter E. Desktops.OpenDoc http://carnot.pathology.ubc.ca/

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Re: AW: [Oberon] USB usage
by Easthope 08 Jun '07

08 Jun '07

Sven, While I think of it, System Reboot in the menu has the same effect as System Shutdown. Both leave a blue screen with a mouse arrow. In Oberon / PC Native 05.01.2003 System.Reboot works. > ... output of AosPCITools.Scan? Call error: AosPCITools.Scan not found But AOS:AosPCITools.Obj exists. So a problem deeper than just USB exists. > ... contents of the kernel log ... Aos 3.4.07 Single-processor AosATADisks: Scanning PCI bus for IDE & SATA class devices ... AosATADisks: Found PCI device on bus 0, device 1, function 1 AosATADisks: Adding controller 01F0, 03F0, FCF0, IRQ: 14: IDE0..1, Bus-master enabled, DMA not supported, Compact Flash AosATADisks: Adding controller 0170, 0370, FCF8, IRQ: 15: IDE2..3, Bus-master enabled IDE0: 11497MB, LBA, ATA/ATAPI-4, Ultra DMA 2, QUANTUM Bigfoot TX12.0AT, ver 4.17 IDE1: 497MB, LBA, CompactFlash, removable, no DMA, SAMSUNG CF/ATA IDE2: ATAPI direct access device, removable (RMSN), no DMA, IOMEGA ZIP 100 ATAPI IDE3: ATAPI cd-rom device, removable, MW DMA 2, CD-524EA-B AosDiskVolumes: IDE0#3 AosDiskFS: 58996K of 119968K available on IDE0#3 AosDiskVolumes: IDE0#2 AosDiskFS: 84492K of 119968K available on IDE0#2 AosDiskVolumes: IDE1#3 AosDiskFS: 185100K of 302892K available on IDE1#3 {P0 AosDisplayLinear: GlobalSetCacheProperties = 1505} AosDriverDatabase: Enabled driver lookup service. {P0 AosUsb: USB driver loaded.} AosUsb: Driver UsbHub (USB Hub Driver) has been added. AosUsbOhci: Busmastering is disabled. AosUsb: Driver UsbStorage (USB Mass Storage Driver) has been added. Default font installedOpenType 0.45 BBPort /3.12.2004 eos, pl WindowManager: Manager.New finished WindowManager: Disp.format = 2 {P0 Bottom up...New background-->Mouse Cursor-->NIL } {P0 ETH Oberon / Aos 3.4.07} Regards, ... Peter E.

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USB usage
by Easthope 07 Jun '07

07 Jun '07

Sven & others, AosUsb.Text is very useful ... but I found it only by "accident". Can you cite it in AosTools.Tool or a more prominent location? I checked that the USB controller is not disabled in the system setup. After executing AosPCITools.DetectHardware ~ and AosDriverDatabase.Enable ~ the USBViewer still reports "No USB host controller drivers installed." OK, I miss something which is obvious to others. Someone please give a hint. With appropriate use of AosPCITools.DetectHardware can the long Boot1 parameter in Aos.Par be simplified? Thanks, ... Peter E.

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AMD 64 Port
by Søren Renner 05 Jun '07

05 Jun '07

Any word on this? The upcoming quadcore chips are tempting. Also, when is the next crazy-fresh release planned? I will contribute a new demo if this is desired. By the way, when I was learning how to distribute work among multiple threads I looked at the code for the Mandelbrot demo. Gosh. I couldn't follow it at all. Something about workunits.

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