Marc's Public Blog - Linux Hacking


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This page has a few of my blog entries about linux, but my main linux page is here
Picture of Linus

Here is a list of older linux event reports I made before my blog was started, then the rest are below
1996/11/18-21:Linux Pavillion Comdex Fall 1996 (photos only). I've been going since then to help at the linux pavillion.
1997/11/18-21: Linux Pavillion Comdex Fall 1997 (photos only)
1998/05/28-30: Linuxexpo 1998 (photos only)
1998/11/16-20: Linux Pavillion Comdex Fall 1998 (full report)
1998/11/11: Silicon Valley Tea Party (report with pictures)
1999/02/15: Windows Refund Day (report with pictures)
1999/03/20: SVLUG KTEH night (photos only)
1999/03/01-04: LinuxWorld Expo Winter 99 (complete report with many pictures)
1999/03/31: Mozilla Party one year anniversary (photos only)
1999/05/18-22: Linuxexpo 1999 (complete report with many pictures)
1999/06/07: June 99 Balug meeting with Linus
1999/08/09-12: LinuxWorld Expo Summer 99 (complete report with many pictures)
1999/11/15-19: Linux Business Show at Comdex Fall 1999 (full report with pictures)
2000/08/14-17: LinuxWorld Expo Summer 2000 (complete report with many pictures)
2001/01/17-20: Linux.conf.au/LCA 2001 (complete report with pictures)
2001/07/25-28: OLS 2001 (photos only)
2001/08/25: Linux 10th Anniversary (report with pictures)
2001/09/27-30: LinuxWorld Expo Summer 2001 report with pictures)
2001/11/05-10: ALS 2001 (photos only)
2002/06/26-29: OLS 2002 (photos only)
2003/01/20-25: LCA 2003 (photos only)
2003/07/23-26: OLS 2003 (photos only)
2004/01/12-17: LCA 2004 (photos only)
2004/07/21-24: OLS 2004 (photos only)
2005/04/18-23: LCA 2005 (photos only)
2006/01/24-28: LCA 2006 (photos only)
2007/01/17-21: LCA 2007 (photos only)

Here is a list of all the talks I've given:

And below are my blog posts:



Table of Content for linux:

More pages: February 2004 March 2004 November 2004 April 2005 August 2005 January 2006 July 2006 August 2007 November 2007 January 2008 October 2008 November 2008 December 2008 January 2009 May 2009 July 2009 August 2009 September 2009 November 2009 December 2009 January 2010 March 2010 April 2010 June 2010 August 2010 October 2010 January 2011 July 2011 August 2011 December 2011 January 2012 March 2012 May 2012 August 2012 December 2012 January 2013 March 2013 May 2013 September 2013 November 2013 January 2014 March 2014 April 2014 May 2014 October 2014 January 2015 March 2015 May 2015 January 2016 February 2016 March 2016 June 2016 July 2016 August 2016 October 2016 January 2017 September 2017 January 2018 March 2018 December 2018 January 2019 January 2020 May 2020 September 2021 March 2023 April 2023



2020/01/13 Linux.Conf.au 2020 in the Gold Coast
π 2020-01-13 01:01 in Linux
LCA had been nearby twice, in Brisbane, but this was the first time in the Gold Coast. I had been there twice in the past though, so there were fewer things left to see, I went to check them

I gave a couple of talks this year:

  • Planning for and Handling Failures from Open Hardware, Aviation, to Production at Google
  • ESP32 Memory Management, Neopixels and RGBPanels
  • I also had fun at the Open Hardware Miniconf 2020: Dingo Car with Tensorflow Video Analysis v2

    I met Chris and Jon for dinner before the conference:


    Chris had a fancy wheelchair enhanced with Jon's improvements
    Chris had a fancy wheelchair enhanced with Jon's improvements

    Then came time for the conference:





    I much enjoyed a very cool talk on emulating old game consoles in an FPGA



    took a lot to run those video consoles back then, lots of it was RAM
    took a lot to run those video consoles back then, lots of it was RAM

    there was no framebuffer, sprites and backgrounds were rendered real time during CRT gun scans
    there was no framebuffer, sprites and backgrounds were rendered real time during CRT gun scans

    backgrounds were rendered fro a bunch of tiles to same RAM
    backgrounds were rendered fro a bunch of tiles to same RAM

    Random talk slides:










    great to have Bunnie back
    great to have Bunnie back



    Nice to see the usual people again:


    of course I 'need' an ESP32 watch :)
    of course I 'need' an ESP32 watch :)

    this one is cute too
    this one is cute too



    Nice dinners as usual:






    I brought my new LED outfit
    I brought my new LED outfit


    And just like this, it was conference close, where we we told to guess where the next conference would be:



    it'll be back in Canberra a 3rd time
    it'll be back in Canberra a 3rd time

    Jon Oxer won the Rusty Wrench award this year, and it was well deserved
    Jon Oxer won the Rusty Wrench award this year, and it was well deserved


    After an ice cream social, the conference was over.

    2020/01/14 Linux.conf.au Open Hardware Miniconf 2020: Dingo Car with Tensorflow Video Analysis v2
    π 2020-01-14 01:01 in Arduino, Electronics, Linux
    Another LCA, another Open Hardware Miniconf. This year was an improved version of the Dingo Car from last year.

    Jon, presenting the miniconf as per how many
    Jon, presenting the miniconf as per how many





    Raspberry Pi running the car
    Raspberry Pi running the car



    This year's dingo car, controlled by the rPi
    This year's dingo car, controlled by the rPi

    All done
    All done

    Andy presenting the software side of the car
    Andy presenting the software side of the car

    We then trained our cars' neural network by manually driving them arount the track:


    and before long, I got my car to drive around on its own
    and before long, I got my car to drive around on its own

    Here is a video of my car driving on its own, including how it learned to drive:

    During the miniconf, I also gave a talk on my recent LED panel/ESP32 work and brought my recent RGBPanels:


    2020/01/15 Linux.conf.au 2020 Main Talk: Planning for and Handling Failures from Open Hardware, Aviation, to Production at Google
    π 2020-01-15 01:01 in Google, Linux, Public
    As part of Linux.conf.au 2020, I gave my main talk Planning for and handling failures from open hardware, aviation, to production at Google.

    The talk focussed on failures I've encountered in multiple fields, and what I learned from reading from other people's failures, a common practise in aviation that has saved countless lives in not re-creating failures and accidents out of ignorance.
    As they say in aviation "experience is a cruel teacher: she gives you the test first, and if you survive, then you get to learn the lesson".

    After looking at examples of failures we experienced at Google, I give a fair amount of examples from aviation, from AF447, QF32, and the Boeing 737 Max disaster which is so many failures in so many ways that it takes a while to describe in details. My hope is that engineers in a similar situation where they know they are getting overruled, can use other escallation steps to avoid disaster for others.

    You can get the talk PDF or openoffice source from here. Otherwise, you can read the slides below and watch the video recording:





    More pages: February 2004 March 2004 November 2004 April 2005 August 2005 January 2006 July 2006 August 2007 November 2007 January 2008 October 2008 November 2008 December 2008 January 2009 May 2009 July 2009 August 2009 September 2009 November 2009 December 2009 January 2010 March 2010 April 2010 June 2010 August 2010 October 2010 January 2011 July 2011 August 2011 December 2011 January 2012 March 2012 May 2012 August 2012 December 2012 January 2013 March 2013 May 2013 September 2013 November 2013 January 2014 March 2014 April 2014 May 2014 October 2014 January 2015 March 2015 May 2015 January 2016 February 2016 March 2016 June 2016 July 2016 August 2016 October 2016 January 2017 September 2017 January 2018 March 2018 December 2018 January 2019 January 2020 May 2020 September 2021 March 2023 April 2023

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