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systemd: prctl: add PR_{SET, GET}_CHILD_SUBREAPER was Re: Did I buy the wrong network card? (RTL8812AE)
by Russell 18 May '17

18 May '17

I've changed the subject to indicate that I have changed my own system by following the instructions to initialize ifup-wait-all-auto.service and this sub initialization feature seems to have fixed my npdate issue. On my box, I still have a minor memory allocation problem. Although the USB error showing the HID description (usually only one physical Endpoint on a human interface device) is gone. The system.slice also links this error to wpa_supplicant. However, today cron.daily executed ntpdate correctly. root@HECTOR:~# systemctl status ntp.service ● ntp.service - LSB: Start NTP daemon Loaded: loaded (/etc/init.d/ntp) Active: active (running) since Sun 2017-05-14 09:31:35 EDT; 22h ago CGroup: /system.slice/ntp.service └─22736 /usr/sbin/ntpd -p /var/run/ntpd.pid -g -u 120:127 https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… I've added this to my .bashrc as the authors of systemd recommend for further core troubleshooting. alias psc='ps xawf -eo pid,user,cgroup,args' On Sun, May 14, 2017 at 4:14 PM, Russell Reiter <rreiter91(a)gmail.com> wrote: > On Sat, May 13, 2017 at 1:55 PM, Stewart C. Russell via talk > <talk(a)gtalug.org> wrote: >> On 2017-05-13 12:24 PM, Russell wrote: >>> >>> This might be an ILP (Instruction Level Parallelisim) feature of systemd >>> init. >>> >>> Take a look at how systemd deals with IVP routing tables using >>> network.target here. >>> >>> https://www.freedesktop.org/wiki/Software/systemd/NetworkTarget/ >> >> Thanks, but I'm getting network, then it's periodically cutting out. >> This seems to be more waiting for systemd to say "No, really, we've got >> a network available" to services, rather than the network giving out. We >> get to answer a lot of questions about systemd and network on the >> Raspberry Pi forum, mostly about @reboot cron jobs not finding the >> network. > > For now, perhaps you could help me out? Are you getting this following > usbhid endpoint error? > > usbhid 1-2:1.0: couldn't find an input interrupt endpoint > > Also sorry I wasn't clear in my earlier post. The page link I provided was > to the page NetworkTarget. network.target itself only indicates that the > network management stack is up after it has been reached, It was the stuff > below the "Cut the crap! How do I make network.target work for me", that I > was referring to. > > The reason I ask is that, here on my stock Debian, I seem to have some > confusion as an endpoint buffer, which firstly needs an endpoint descriptor, > doesn't get one. If a service doesn't return NAK or STALL, the result seems > to be a missing link beat. > > Once a core system acquires the target, you should be able to track that > target by its Endpoint device description tables, in theory anyway. > > However, when something tries to shove a big endian bit into a little endian > bucket, stuff is bound to spill over and mux something up. > > So far, I was able to sort out my own printer/scanner and a non-persistent > scanner, by defining /lib/systemd/system > - saned@.service > -saned.socket > > Right now for a NTP issue I'm studying > - After=network-online.target > -Wants=network-online.target > > I dont have network dropping issue but some people who are dropping networks > after the initial poll might have luck with. > > systemctl enable ifup-wait-all-auto.service > > Below is a quote from another link which also contains the suggested > contents of ifup-wait-all-auto.service. > > https://unix.stackexchange.com/questions/209832/debian-systemd-network-onli… > > "Throw that beauty in /etc/systemd/system/ifup-wait-all-auto.service, > install it with sudo systemctl enable ifup-wait-all-auto.service, and then > actually have the network-online.target references in your systemd unit > definitions work properly." > > >> >> Thanks, though. I suspect I'll have to make do with a very basic USB >> wifi adapter (I bought Far Too Many for Raspberry Pis) until Scott's >> suggested mPCIe adapter arrives. >> >> cheers, >> Stewart >> >> --- >> Talk Mailing List >> talk(a)gtalug.org >> https://gtalug.org/mailman/listinfo/talk -- Russell Sent by K-9 Mail

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The ultimate Linux Trojan horse: Windows Subsystem for Linux | Network World
by James Knott 17 May '17

17 May '17

Fedora, openSUSE and Ubuntu are now available in the Windows Store, making life easier for Windows-dominant organizations to run open source software http://www.networkworld.com/article/3197264/open-source-tools/the-ultimate-… Linux/Open Source Alert 2017-05-17&utm_term=networkworld_linux_open_source_alert <http://www.networkworld.com/article/3197264/open-source-tools/the-ultimate-…>

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Did I buy the wrong network card? (RTL8812AE)
by Stewart C. Russell 16 May '17

16 May '17

Hi - For the new computer I just built, I bought a D-Link DWA-582 802.11ac PCIe adapter. It's based on the Realtek RTL8812AE chipset. Does anyone know the particular magic to get these going, please? >From the start on Ubuntu Gnome, the card would work for about 15 minutes, then disassociate itself from the router. It might occasionally spring back to life for a few minutes, but there didn't seem to be anything special I was doing to get it reconnected. I've updated the firmware blob(s) from the Realtek linux maintainer's site. Older posts about this chipset say it's a power management problem, but the newest firmware supposedly fixes this. Should I have bought a different card? What 802.11ac cards work for people here? I'm not super keen on drilling holes in the floor to snake an ethernet cable up from the basement. cheers, Stewart

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[GTALUG-Announce] [SPEAKER CHANGE] Meeting on 13 June at 7:30pm - Intelligent Availability; The evolution of High Availability with Alex Bruneau
by hi＠gtalug.org 15 May '17

15 May '17

<http://gtalug.org/meeting/2017-06/> # Intelligent Availability; The evolution of High Availability with Alex Bruneau Alex will discuss the tenants of and concepts behind "Intelligent Availability" and how it provides "next gen" availability. The "Anvil!" platform is the first full IA platform, combining a fully redundant architecture along with the 100% open source Striker UI and ScanCore "decision engine". A live demonstration of this platform will be used to show IA in action. Various faults will be induced, showing how the Anvil! autonomously reacts to mitigate these changing risks. Attendees will be learn how to apply these IA techniques and concepts, allowing them to make their own IT environments more resilient. Alex Bruneau is the head of customer support at Alteeve. Alteeve is the company of Esteemed Community Member, Madison Kelly. ## Location George Vari Engineering and Computing Centre 245 Church Street, Room 203 Ryerson University <http://goo.gl/maps/16oJ2> <http://www.openstreetmap.org/way/23447525> ## Schedule * 6:00 pm - Please discuss on the general mailing list (i.e. <talk(a)gtalug.org>) where you want to go for dinner. * 7:30 pm - Meeting and presentation. * 9:00 pm - After each meeting, a group of GTALUGers move to The Imperial Pub (54 Dundas St East) for refreshments and more socialising. # Code of Conduct We want a productive happy community that can welcome new ideas, improve every process every year, and foster collaboration between individuals with differing needs, interests and skills. We gain strength from diversity, and actively seek participation from those who enhance it. This code of conduct exists to ensure that diverse groups collaborate to mutual advantage and enjoyment. We will challenge prejudice that could jeopardise the participation of any person in the community. The Code of Conduct governs how we behave in public or in private whenever the Linux community will be judged by our actions. We expect it to be honoured by everyone who represents the community officially or informally, claims affiliation or participates directly. It applies to activities online or offline. We invite anybody to participate. Our community is open. Please read more about the GTALUG Code of Conduct here: <http://gtalug.org/about/code-of-conduct/>. If you have any questions, comments, or concerns about the GTALUG Code of Conduct please contact the GTALUG Board @ <board(a)gtalug.org>. --- GTALUG Announce mailing list announce(a)gtalug.org https://gtalug.org/mailman/listinfo/announce

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new computer (+ thanks to Scott S.)
by Stewart C. Russell 13 May '17

13 May '17

I'd like to send a note of appreciation to Scott Sullivan for taking a couple of hours to spec out a new computer for me, and thinking of issues I wouldn't have even known were things to avoid. Without Scott's help, I'd likely have made some costly mistakes. I needed a fairly CPU-strong desktop on a budget. Though I mostly work in desktop graphics applications, my 3D graphics needs are pretty limited. I need gobs of RAM, mostly because I attempt stuff in OpenSCAD that wiser folks would give up on. Scott noted that with DDR4 being mainstream, there are still some DDR3-based systems available that provide a fair bit of processing power for a good price. Here's what I bought and built: * CPU: Intel i7-4790K at 4 GHz * Motherboard: Asus H97M-E/CSM * SSD: Intel 600p M.2 NVMe PCIe 500 GB * RAM: Adata DDR3, 32 GB (“carefully burn-in tested”, aka secondhand) * PSU: Corsair CX450 (again, “carefully burn-in tested” …) * Monitor: Asus VP247H (on special last weekend at Canada Computers) * Case: Cooler Master micro ATX * Other bits: LG DVD drive, Apple USB keyboard (my own, previously), wired USB "Blade Runner" mouse (surprisingly ergonomic, cheap, and unlike most gamer mice, doesn't look as if I'm trying to push Deadmau5's Nyan Cat Ferrari about the desk). * Distro: Ubuntu Gnome (sorry, Scott …) Observations: * There are fewer retailers selling a smaller range of cases than you might expect in the GTA. NCIX still has its warehouse outlet at Birchmount and 14th in Markham, but moved to the south side of 14th. It's not well advertised, and the building itself looks mostly empty. You'll also need to know exactly what you want, as you order by SKU and their showroom is mostly re-stock special offers. Which is fine if you do actually want a slightly scratched banana-yellow gamer case the size of a beer fridge. * I hadn't built a desktop since 2005. My eyesight hasn't got any better and trying to locate black pin headers inside a flat-black case is somewhat challenging. * The M.2 NVMe PCIe SSD is outrageously fast. Note that there are many (incompatible) M.2 form factors and there are even sneaky SATA ones that offer no real speed increase. The motherboard shipped with a very old BIOS that didn't have M.2 support, which was fun. * You'll note a complete lack of graphics card. Yup, Intel integrated graphics is fine for me, for now. * The Asus motherboard still has AT-style keyboard and mouse ports! These were ‘legacy’ the last time I built a PC. For even more retroness, it has a 16550-based serial port. Bet it doesn't have a FDC, tho. * I think there's some tweaking required to the SATA DVD transport, as I can rip a CD slightly faster on a Raspberry Pi 3 with external USB DVD drive than I can on this new machine. This should not be so! While MP3 encoding is almost instantaneous on the i7, the CD rip process is pedestrian. * I finally tracked down how to make Gnome Tracker desktop search useful again. As I said in my talk in April, I can't operate without desktop search any more. It seems that a couple of Toronto Hydro smart meter data spreadsheets would cause Tracker's indexer to blow up. Re-saving them, excluding them or deleting them did the trick. Details on diagnosing/fixing here: https://askubuntu.com/questions/914581/no-progress-updates-from-gnome-track… * Gnome has gone perhaps a bit too minimalist. It has a top bar, but you can't really add anything to it. I need my Character Map! * Gnome location services are a bit crap. The computer insists I'm operating from Christie Pits Park. * The Apple keyboard will need a bit of configuration because of course it has no Print Screen Key. Gnome's keyboard thingy assumes a PC layout, even if you select a Macintosh keyboard. Again, thanks to Scott for the help. Any other software/hardware decisions are my own fault. cheers, Stewart

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Some jobs at Kobo, here and in the EU
by David Collier-Brown 12 May '17

12 May '17

Courtesy of Jim Mercer: - one Dev/Ops person in Toronto, in my team - six Dev.Ops in Darmstadt and Dublin There are also quite a number of developer and related position, posted at https://www.kobo.com/ca/en/p/openpositions --dave -- David Collier-Brown, | Always do right. This will gratify System Programmer and Author | some people and astonish the rest davecb(a)spamcop.net | -- Mark Twain

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[GTALUG-Announce] Meeting on 13 June at 7:30pm - Intelligent Availability; The evolution of High Availability with Madison Kelly
by hi＠gtalug.org 10 May '17

10 May '17

<http://gtalug.org/meeting/2017-06/> # Intelligent Availability; The evolution of High Availability with Madison Kelly Madison will discuss the tenants of and concepts behind “Intelligent Availability” and how it provides “next gen” availability. The “Anvil!” platform is the first full IA platform, combining a fully redundant architecture along with the 100% open source Striker UI and ScanCore “decision engine”. A live demonstration of this platform will be used to show IA in action. Various faults will be induced, showing how the Anvil! autonomously reacts to mitigate these changing risks. Attendees will be learn how to apply these IA techniques and concepts, allowing them to make their own IT environments more resilient. ## Location George Vari Engineering and Computing Centre 245 Church Street, Room 203 Ryerson University <http://goo.gl/maps/16oJ2> <http://www.openstreetmap.org/way/23447525> ## Schedule * 6:00 pm - Please discuss on the general mailing list (i.e. <talk(a)gtalug.org>) where you want to go for dinner. * 7:30 pm - Meeting and presentation. * 9:00 pm - After each meeting, a group of GTALUGers move to The Imperial Pub (54 Dundas St East) for refreshments and more socialising. # Code of Conduct We want a productive happy community that can welcome new ideas, improve every process every year, and foster collaboration between individuals with differing needs, interests and skills. We gain strength from diversity, and actively seek participation from those who enhance it. This code of conduct exists to ensure that diverse groups collaborate to mutual advantage and enjoyment. We will challenge prejudice that could jeopardise the participation of any person in the community. The Code of Conduct governs how we behave in public or in private whenever the Linux community will be judged by our actions. We expect it to be honoured by everyone who represents the community officially or informally, claims affiliation or participates directly. It applies to activities online or offline. We invite anybody to participate. Our community is open. Please read more about the GTALUG Code of Conduct here: <http://gtalug.org/about/code-of-conduct/>. If you have any questions, comments, or concerns about the GTALUG Code of Conduct please contact the GTALUG Board @ <board(a)gtalug.org>. --- GTALUG Announce mailing list announce(a)gtalug.org https://gtalug.org/mailman/listinfo/announce

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Contributor Covenant: A Code of Conduct for Open Source Projects
by Evan Leibovitch 09 May '17

09 May '17

As mentioned in tonight's talk... http://contributor-covenant.org/ ⁣- Evan (via mobile)

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[GTALUG-Announce] Meeting Tomorrow at 7:30pm
by hi＠gtalug.org 09 May '17

09 May '17

<http://gtalug.org/meeting/2017-05/> # Lessons learnt as a maintainer with Dhaval Giani I have been an upstream maintainer of libcgroup. As a maintainer, I have had varied experiences which have taught me important lessons. This talk goes over some anecdotes, and hopefully they provide some humour and some lessons. ## Location George Vari Engineering and Computing Centre 245 Church Street, Room 203 Ryerson University <http://goo.gl/maps/16oJ2> <http://www.openstreetmap.org/way/23447525> ## Schedule * 6:00 pm - Please discuss on the general mailing list (i.e. <talk(a)gtalug.org>) where you want to go for dinner. * 7:30 pm - Meeting and presentation. * 9:00 pm - After each meeting, a group of GTALUGers move to The Imperial Pub (54 Dundas St East) for refreshments and more socialising. # Code of Conduct We want a productive happy community that can welcome new ideas, improve every process every year, and foster collaboration between individuals with differing needs, interests and skills. We gain strength from diversity, and actively seek participation from those who enhance it. This code of conduct exists to ensure that diverse groups collaborate to mutual advantage and enjoyment. We will challenge prejudice that could jeopardise the participation of any person in the community. The Code of Conduct governs how we behave in public or in private whenever the Linux community will be judged by our actions. We expect it to be honoured by everyone who represents the community officially or informally, claims affiliation or participates directly. It applies to activities online or offline. We invite anybody to participate. Our community is open. Please read more about the GTALUG Code of Conduct here: <http://gtalug.org/about/code-of-conduct/>. If you have any questions, comments, or concerns about the GTALUG Code of Conduct please contact the GTALUG Board @ <board(a)gtalug.org>. --- GTALUG Announce mailing list announce(a)gtalug.org https://gtalug.org/mailman/listinfo/announce

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Instantly better presentation with Damian Conway
by Alex Volkov 09 May '17

09 May '17

Hello everyone, I just came across a talk by Damian Conway on how to give better technical presentations, and I thought it would be of interest not just for me. https://www.youtube.com/watch?v=W_i_DrWic88 Thanks, Alex.

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