| === Muhammad is now known as OERIAS | ||
| === Azelphur_ is now known as Azelphur | ||
| knightwise | morning | 07:20 |
|---|---|---|
| mapp | mornin knightwise | 07:21 |
| knightwise | hey mapp , how are you doing | 07:25 |
| mapp | not bad mate | 07:28 |
| mapp | you? | 07:28 |
| mapp | just got up for work? | 07:28 |
| knightwise | doin ok | 07:28 |
| knightwise | same here | 07:28 |
| knightwise | been up a couple of hours | 07:29 |
| knightwise | installed ubuntu on a mac mini in the house here | 07:30 |
| knightwise | going to be using it as a server for some vm"s and files | 07:30 |
| knightwise | looking for the best way to remote into it | 07:35 |
| knightwise | into the gui | 07:35 |
| mapp | what time did u get up if u been up a few hours! | 07:36 |
| knightwise | 5.30 | 07:37 |
| knightwise | already did some digging in the yard before I start working from home | 07:37 |
| mapp | thats early:) | 07:37 |
| knightwise | used to it | 07:38 |
| knightwise | working from home this month because my co-workers are all on holiday | 07:39 |
| knightwise | i have the extra hours to do some work on the house and stuff | 07:39 |
| mapp | aha | 07:41 |
| knightwise | and run my own company :) (i'm an it consultant) | 07:41 |
| Gargoyle | knightwise: snap! (Also at home) | 07:42 |
| Gargoyle | taming the beast that is cloud-init. :) | 07:42 |
| knightwise | hey Gargoyle | 07:42 |
| knightwise | hmmm. . gonna try to get that mac mini up and running as a side project | 07:45 |
| Gargoyle | What you connecting from? | 07:45 |
| knightwise | Inside the network I would like to be able to connect using an RDP client | 07:46 |
| knightwise | under Gnome it used to be easy , under Unity , not so much. | 07:47 |
| Gargoyle | ah. | 07:47 |
| knightwise | i am willing to install lxde if required | 07:47 |
| Gargoyle | Used vnc in the past, because I mainly would be connecting from a Mac. | 07:48 |
| knightwise | Gargoyle: then what do you use on the linux side ? | 07:48 |
| Gargoyle | Most recently I've been using VM's that provide a vnc connection - but if I don't remember using anything elaborate before that. Just whatever google turned up! | 07:50 |
| mapp | was debating having another cig | 07:50 |
| mapp | but my throat hurts:( | 07:50 |
| Gargoyle | knightwise: vnc4server | 07:51 |
| knightwise | aha | 07:53 |
| knightwise | and that works on a headless machine (so no confirmation required and stuff like that ? ) | 07:54 |
| Gargoyle | Or you could just use bash! :P | 07:55 |
| knightwise | i do use bash , everything I can do via the CLI , i do via the Cli | 07:56 |
| knightwise | but sometimes its handy to just have a quick glance at the desktop | 07:56 |
| Gargoyle | If it's a headless, why even bother with a desktop? | 07:56 |
| knightwise | I don't think you can run virtualbox without a gui | 07:58 |
| knightwise | at least not on the host machine | 07:58 |
| SuperMatt | tbh, I'd install a desktop so you can plug the thing in to a tv if you need to | 07:58 |
| knightwise | true SuperMatt , always nice to have it around even just if you are using it as a mediabox or something | 08:00 |
| SuperMatt | might not want to set lightdm/gdm to start automatically | 08:06 |
| knightwise | that I have (i installed it using the Mac64 desktop version) | 08:06 |
| === ormiret_ is now known as ormiret | ||
| === msm is now known as Guest697 | ||
| bigcalm | Good morning peeps :) | 08:37 |
| knightwise | hey bigcalm | 08:55 |
| brobostigon | morning boys and girls. | 08:59 |
| knightwise | @hey brobostigon | 09:00 |
| brobostigon | morning knightwise | 09:00 |
| knightwise | hey brobostigon , how are you doing today | 09:02 |
| brobostigon | tired and boiled, and you knightwise ? | 09:05 |
| knightwise | working from home today | 09:07 |
| knightwise | still have 120 bricks , 500 kg of steel rods and about 1 cubic ton of cement to carry to the back yard | 09:08 |
| knightwise | thats something to do for this evening | 09:08 |
| brobostigon | what are you building? | 09:08 |
| knightwise | garden wall between me and my neighbour collapsed | 09:09 |
| knightwise | Time for a new one | 09:09 |
| knightwise | 7 meters wide , 2 meters high | 09:09 |
| brobostigon | ah. | 09:09 |
| knightwise | needs to be reinforced with iron rods and filled up with concrete | 09:09 |
| brobostigon | i see. | 09:09 |
| knightwise | and we live in a row of houses | 09:10 |
| knightwise | so everything needs to be carried THROUGH the house | 09:10 |
| * knightwise is getting some exercise | 09:10 | |
| brobostigon | :( | 09:10 |
| knightwise | its shitty but it needs to be done | 09:11 |
| * knightwise listening to a good audiobook meanwhile ... | 09:11 | |
| brobostigon | yep. | 09:11 |
| knightwise | so that helps to pass the time | 09:11 |
| brobostigon | :) | 09:11 |
| === adam_ is now known as kabads | ||
| bigcalm | Sometimes I wish phone calls came with sub titles. Just had a call from a lady with a very thick Welsh accent. Think I got the gist of what she said :S | 09:55 |
| knightwise | lol | 10:09 |
| === Lcawte is now known as Lcawte|Away | ||
| === Lcawte|Away is now known as Lcawte | ||
| === andatche_ is now known as andatche | ||
| === Lcawte is now known as Lcawte|Away | ||
| === Lcawte|Away is now known as Lcawte | ||
| diddledan | morning | 12:02 |
| === alan_g is now known as alan_g|lunch | ||
| diddledan | grr @ adobe dropping support for linux flash | 12:21 |
| diddledan | </oldnews> | 12:21 |
| bigcalm | Anybody know much about children's rocking horses? I'm going to buy this off a friend but have no idea how much to offer her: https://www.dropbox.com/s/awce26xa6eq9kyz/IMG_20140717_173455_705.jpg | 13:25 |
| bigcalm | I'm having a bugger of a time finding something similar on the interwebs | 13:26 |
| === Lcawte is now known as Lcawte|Away | ||
| mapps | argh | 14:12 |
| mapps | pesky power cable came out again | 14:13 |
| diddledan | don't you hate when you unexpectedly fall out? | 14:15 |
| mapps | yes! | 14:16 |
| mapps | its been dodgy for a while | 14:16 |
| mapps | have to wedge a remote under it | 14:16 |
| === Lcawte|Away is now known as Lcawte | ||
| === alan_g|lunch is now known as alan_g|tea | ||
| === alan_g|tea is now known as alan_g | ||
| === Lcawte is now known as Lcawte|Away | ||
| === Lcawte|Away is now known as Lcawte | ||
| === Lcawte is now known as Lcawte|Away | ||
| === Lcawte|Away is now known as Lcawte | ||
| === Lcawte is now known as Lcawte|Away | ||
| popey | evening | 19:01 |
| daftykins | what-o | 19:25 |
| daftykins | ok, test VM running 12.04.5 - run "hwe-support-status --verbose" and i get... | 19:27 |
| daftykins | "You are not running a system with a Hardware Enablement Stack. Your system is supported until April 2017." | 19:27 |
| daftykins | i was under the impression it's going to automatically get trusty's HWE | 19:27 |
| daftykins | it's certainly claimed that the above command is meant to provide instructions on how to install it if not | 19:28 |
| daftykins | (just for clarification here, i don't want to know HOW to do it... i'm curious that the above doesn't provide an answer) | 19:28 |
| popey | wat https://www.kickstarter.com/projects/mmv/console-os-dual-boot-android-remastered-for-the-pc | 19:56 |
| diddledan | popey: that's nuts | 20:13 |
| daftykins | "Most other processes on the system trace their origin ultimately to init; the exceptions are kernel processes, started by the kernel directly for managing internal operating system details." | 20:32 |
| daftykins | any thoughts on examples of kernel processes? :) | 20:32 |
| daftykins | might driver modules count? | 20:32 |
| daftykins | i suppose they aren't processes | 20:32 |
| popey | look for any process on your system owned by root starting with the letter k | 20:33 |
| popey | kworker, kthread, khelper, kdevtmpfs, kcryptd etc | 20:33 |
| daftykins | mm-hmm | 20:34 |
| daftykins | lots of kworker yeah | 20:34 |
| daftykins | ty sir | 20:38 |
| ali1234 | modules definitely aren't separate processes | 20:50 |
| daftykins | *nod* | 20:51 |
| ali1234 | kernel uses processes for long running worker tasks | 20:51 |
| daftykins | as soon as i wrote it i figured, well hey there's no 'nvidia' process ;) | 20:51 |
| ali1234 | actually there is | 20:51 |
| daftykins | damn. | 20:52 |
| ali1234 | modules can use one or more threads/processes | 20:52 |
| daftykins | a bit of research seems to say things like kworker handle kernel processing, such as interrupts, timers and I/O | 20:52 |
| ali1234 | most don't though - most are really really simple | 20:52 |
| ali1234 | but module code is no different to any other kernel code really | 20:52 |
| ali1234 | yeah interrupts is a good example | 20:53 |
| daftykins | would that be in terms of IRQ handling? | 20:54 |
| ali1234 | the interrupt itself fires in an interrupt context which means it interrupts absolutely everything else happening on the computer | 20:54 |
| daftykins | or a different kind of interrupt | 20:54 |
| ali1234 | IRQs yes | 20:54 |
| ali1234 | so you want to handle the interrupt as quickly as possible to prevent them from piling up, which is bad | 20:54 |
| daftykins | *nod* | 20:55 |
| ali1234 | so what you do is collect the interrupt information and hand it over to a kworker thread to deal with then leave the interrupt context | 20:55 |
| ali1234 | most modules do not need to directly deal with interrupts | 20:56 |
| ali1234 | for example USB - all the interrupt stuff is andled in the host controller driver (uhci/ohci/ehci/xhci) | 20:56 |
| ali1234 | the actual device drivers never see the details, they just get data streams | 20:57 |
| ali1234 | so they don't need any threads usually | 20:57 |
| daftykins | might DMA IO differ from involving a kworker thread? | 20:59 |
| daftykins | i think that bypasses CPU involvement? | 20:59 |
| ali1234 | correct, DMA bypasses the CPU... or more correctly it is "fire and forget" | 20:59 |
| ali1234 | you say "copy from address x to address y length z" and it does it and signals back when it is done (probably by asserting an IRQ) | 21:00 |
| daftykins | i suspect that's why a lot of software graphically stalls when awaiting IO then, as there's no mechanism to say there's a problem until it's done | 21:01 |
| ali1234 | that stems from a lack of threaded programming | 21:02 |
| daftykins | i say graphically, but that's probably just in the case of a blocking design | 21:02 |
| ali1234 | yes | 21:02 |
| ali1234 | that's not really down to the kernel, there are ways to avoid it if you program "correctly" | 21:02 |
| daftykins | mmm it's interesting discovering how the pieces come together more, i'm just doing this newbie edX course for fun :) | 21:02 |
| daftykins | it's referring to init and the older System V UNIX style of doing things | 21:03 |
| daftykins | though i understand ubuntu doesn't use runlevels and hasn't done for years (well, rather it only uses two in a way) | 21:03 |
| ali1234 | it's still widely used despite what some people will tell you | 21:03 |
| daftykins | mmm the course material states that the conventions of System V are kept for compatibility | 21:04 |
| ali1234 | busybox init is probably the most widely used init in the world :) | 21:04 |
| daftykins | for the swathes of embedded devices? | 21:05 |
| ali1234 | right | 21:05 |
| daftykins | thanks :) | 21:09 |
| * daftykins continues with the boot process chapter | 21:09 | |
| popey | ali1234: hows your racing game coming on? | 21:46 |
| ali1234 | not bad. i just rewrote the track system again recently | 21:46 |
| ali1234 | i'm using catmull-clark surfaces now, which means you can directly export an arbitrary surface from blender and that's the track | 21:47 |
| ali1234 | however, this means that tracks can have arbitrary topology, which means there's no way to determine who is winning | 21:47 |
| popey | heh | 21:48 |
| ali1234 | i also did a test with sound using soloud | 21:48 |
| * xnox canonical-- | 23:33 | |
| * xnox not-canonical++ | 23:34 | |
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