#linuxcnc-devel | Logs for 2018-10-02
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[00:16:15] <seb_kuzminsky> i'm running into this problem with the linuxcnc stretch installer ~r11: https://lists.debian.org
[00:16:35] <seb_kuzminsky> apparently it's a well-known problem with the version of network-manager in stretch
[00:17:01] <seb_kuzminsky> the fix is to create the symlink mentioned in that email, that tell udev or systemd or something to not rename the usb wifi interface to something nm can't handle
[00:17:09] <seb_kuzminsky> i think we should add that symlink to our iso
[00:17:13] <seb_kuzminsky> i'll make a pr
[00:17:15] <seb_kuzminsky> tomorrow
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[10:10:50] <jepler> seb_kuzminsky: thanks!
[10:11:25] <jepler> is this tracked by a debian bug somewhere? just in case you have that link ready
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[10:53:35] <seb_kuzminsky> i looked for a debian bug and didn't see it
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[10:56:02] <jepler> me too
[10:56:42] <jepler> do you think this is new in r11, or has been there all along but you tested on different hardware?
[10:57:18] <seb_kuzminsky> https://bugs.debian.org
[10:57:23] <seb_kuzminsky> i bet it's been there all along
[10:58:50] <jepler> thanks! please note that debian bug in a comment or something
[10:59:43] <seb_kuzminsky> https://bugs.debian.org
[11:01:00] <seb_kuzminsky> looks like there are three proposed workarounds:
[11:01:48] <seb_kuzminsky> a kernel command-line argument, the udev symlink, and a NM configuration tweak
[11:02:04] <seb_kuzminsky> i tested the udev rule file symlink and it Worked For Me
[11:02:20] <seb_kuzminsky> on the one usb wifi dongle i tried
[11:12:20] <seb_kuzminsky> testing it now, PR in a bit if it works
[11:23:33] <jepler> thanks for working on that
[11:23:43] <jepler> I wanted to build a new image due to a new kernel security update anyway
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[12:49:53] <jepler> forum update & likely reboot..
[12:50:10] <jepler> yup there's a kernel in there
[12:53:57] <jepler> and we're (long since) back
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[13:39:12] <skunkworks> jepler: you have run bumblebee on debian? did you follow a guide? (I can get it to work on ubuntu - not on debian yet)
[14:03:49] <jepler> skunkworks: I used to run it on a couple of my computers -- one desktop, one laptop. It doesn't seem to work anymore for me.
[14:04:11] <jepler> I just run nvidia full time on desktop and intel full time on my laptop
[14:27:42] <rene_dev_> Jepler is there a easy way of shipping a recent rt preempt kernel? It has much better latency, especially on older hardware
[14:29:14] <pcw_mesa> http://freeby.mesanet.com
[14:30:07] <pcw_mesa> noticeably better on my old clunkers
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[15:01:51] <skunkworks> jepler: thanks!
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[17:11:08] <jepler> rene_dev_: I don't have enough time in the day to build kernels, but stretch has a 4.9-rt kernel, and sometimes debian testing and/or sid have newer options than that.
[17:11:34] <jepler> not to mention backports, but we've been bitten before by -rt kernels disappearing from backports
[17:11:47] <jepler> (when kernels without rt patches enter testing)
[17:12:31] <rene_dev_> building the kernel is easy, if you are a developer, and build kernels before... I just dont know what it takes to package them
[17:12:45] <rene_dev_> because you cant expect users to do that...
[17:13:02] <jepler> no, I absolutely don't expect users to do that
[17:13:02] <hazzy-m> Tom_L: worte a script that made it so even I could install the newest rt-preempt kernel with no trouble
[17:13:08] <jepler> I mean, I can't be bothered to do it, why should they?
[17:13:17] <jepler> but the one that ships with debian stretch ain't bad
[17:13:34] <rene_dev_> yeah :D
[17:13:34] <jepler> https://packages.debian.org 4.18 is in backports, but we won't ship one from backports on our install media due to the aforementioned biting
[17:15:19] <rene_dev_> ah, ok
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[17:15:45] <rene_dev_> so its not really difficult to install that
[17:15:59] <rene_dev_> if users run into problems
[17:16:49] <jepler> wellll it could disappear from backports at any moment, and installing from archive-of-backports is too much pain for anyone to endure
[17:17:12] <jepler> (it's likely to soon after 4.19 enters testing)
[17:17:14] <rene_dev_> yeah, I remember the jessie kernel dissapearing... why is that?
[17:17:31] <jepler> because that's how debian backports works. I can't tell you in any more detail than that.
[17:18:03] <jepler> ah not archive, but snapshot. https://emergent.unpythonic.net
[17:19:27] <jepler> (I could try to tell you more, but I risk just being wrong ;-P)
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[18:00:58] <jepler> Debian "Buster" freeze schedule announced. https://lists.debian.org
[18:10:47] <pcw_mesa> buster is 11?
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[19:21:06] <seb_kuzminsky> stretch is 9, buster is 10
[19:24:06] <pcw_mesa> Ahh
[19:28:45] <KimK> I couldn't remember which toy Buster was, had to look it up. Guess he's not a toy: http://pixar.wikia.com
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[22:13:14] <jepler> "-r2" has the interface naming fix from seb_kuzminsky and also has new "SUMS" files for checking the integrity of your download. http://www.linuxcnc.org
[22:13:19] <jepler> er, "-r12"
[22:13:38] <jepler> and also the last security updates, including a kernel update (still 4.9.x)
[22:14:52] <Tom_L> you don't know who Small Shop Concepts is do you? https://www.youtube.com
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[23:12:57] <hazzy-m> Tom_L: I chat with Small Shop Concepts all the time, lol
[23:13:06] <hazzy-m> he's working on the GUI with me
[23:13:24] <Tom_L> lcvette?
[23:13:38] <hazzy-m> hey, he stole my vidoe, LOLOLO
[23:13:39] <hazzy-m> yes
[23:13:56] <Tom_L> i kinda thought it might be
[23:15:14] <hazzy-m> he's done some really nice work
[23:15:20] <Tom_L> yeah
[23:15:29] <Tom_L> did he ever get his new mill going?
[23:15:47] <hazzy-m> no, he's waiting for the GUI
[23:16:20] <Tom_L> will it require hal changes?
[23:16:29] <Tom_L> it looks nice
[23:16:42] <Tom_L> i'd like to try it if i can convert things easy enough
[23:16:59] <hazzy-m> no, not for most things, but if you want the ATC to be animated and things like that yes
[23:17:08] <Tom_L> no atc here
[23:18:10] <hazzy-m> then it should be a direct replacment for axis/gmoccapy etc.
[23:18:34] <hazzy-m> it's not ready for prime time quite yet though
[23:18:45] <Tom_L> i know
[23:19:38] <hazzy-m> getting close though, I've been working on it since 6:30 this morening, trying to crunch and get it usable
[23:19:51] <hazzy-m> I have several machines I'd like to use it on
[23:20:07] <Tom_L> how will it install to a current working install?
[23:20:55] <hazzy-m> if you are running 2.8 then you just replace axis with probe_basic for DISPLAY
[23:21:04] <Tom_L> 2.7.14 iirc
[23:21:45] <Tom_L> on wheezy :)
[23:22:32] <hazzy-m> Ok. it only works with master running on newer distros like stretch and ubuntu
[23:23:08] <Tom_L> counts me out then. the hardware on the mill is too slow to run stretch
[23:23:29] <Tom_L> preempt-rt right?
[23:23:39] <hazzy-m> yes
[23:23:46] <hazzy-m> do you use the parport?
[23:23:54] <Tom_L> i've got it on my test machine but the mill has wheezy on it
[23:24:03] <Tom_L> parport to a mesa card
[23:24:22] <Tom_L> the test machine is ether
[23:25:56] <hazzy-m> iv'e been surprised how well preempt does on older hardware, but it realy depends on what you have
[23:26:08] <Tom_L> i tried it and it sucked
[23:26:44] <hazzy-m> runs fine on my old atom
[23:27:01] <Tom_L> i think that's what i've got out there
[23:27:05] <Tom_L> a D525
[23:29:35] <hazzy-m> yeah, that's what I have too. The machine runs just fine, but the latency numbers are not great, but I use mesa cards so not very critical
[23:30:11] <Tom_L> it was working good so i didn't really wanna screw it up
[23:31:35] <hazzy-m> yes, I entirety sympathize with that. If it ain't broke, don't fix it.
[23:31:55] <skunkworks> rt_preempt is pretty cool
[23:32:21] <hazzy-m> I have a newish ATX board for mine, but I just can't bring myself to take it appart to put it in
[23:32:58] <Tom_L> i've got a nice one in a box i could use but it's not a mini itx which i prefer out there
[23:32:58] <hazzy-m> skunkworks: It is, and is seems to be getting better and better
[23:34:07] <skunkworks> lot more exposure helps (now that it is at kernel.org)
[23:34:47] <Tom_L> i tried that last kernel patch and that made it worse on my test machine
[23:34:58] <hazzy-m> Yeah, I'm gonna have to rearrange my whole box to fit the ATX in place of the mini :(
[23:35:36] <Tom_L> i could put a tower out there but i don't have that much spare room
[23:35:44] <Tom_L> then i could run ethernet
[23:35:47] <skunkworks> pretty good luck with laptops too... (dont let that get out)
[23:35:56] <Tom_L> just swap ou the 7i90
[23:36:03] <Tom_L> heheh
[23:36:18] <Tom_L> yours seems to do fine
[23:36:24] <hazzy-m> skunkworks: some of the lowest latency I have seen is on some lenovo laptops, blew me away
[23:36:46] <skunkworks> yep.. that is what i currently run.
[23:37:10] <Tom_L> are those fairly new laptops?
[23:37:17] <skunkworks> https://youtu.be
[23:37:46] <Tom_L> watched that yesterday
[23:37:48] <Tom_L> nice
[23:37:51] <hazzy-m> I have been kinda thinking they were not any good for LCNC, but with ethernet now they are
[23:38:42] <skunkworks> 3rd gen iirc. i have a 4th gen msi that seems good. but have not tried the nic. think it is qualcomm or however you spell that
[23:39:12] <hazzy-m> I have a ThinkPad T43 with parport that has very usable latency, but unfortunately it is only 32bit. But fine for wheezy
[23:39:32] <skunkworks> i7 so overkill
[23:39:58] <Tom_L> pretty sure mine are both i5
[23:40:35] <skunkworks> boot the stretch livecd and check out the latency
[23:40:40] <Tom_L> i'm not even sure what board i have in the stretch test pc now
[23:41:21] <Tom_L> skylake
[23:41:27] <Tom_L> in the cad pc
[23:42:34] <skunkworks> i am so close to getting a working vm with video passthrough... but still not there..
[23:43:13] <skunkworks> (laptop with 2 video )
[23:43:29] <Tom_L> so how _do_ you find time to do anything else? :)
[23:44:36] <skunkworks> good question.
[23:44:48] <skunkworks> who needs sleep