#linuxcnc-devel | Logs for 2013-01-13

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[01:27:05] <KGB-linuxcnc> 03chrisinnanaimo 05master 75fa683 06emc2 10src/emc/usr_intf/gscreen/emc_interface.py * gscreen -modify cycle start method so gscreen can use it
[01:27:05] <KGB-linuxcnc> 03chrisinnanaimo 05master 40e9225 06emc2 10src/emc/usr_intf/gscreen/gscreen.py * gscreen -add a cycle-start HAL pin
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[08:40:34] <zultron> Hey L84Supper, you work with memleak, right? Xenomai kernel configs are starting to converge: https://github.com/zultron/kernel-tools
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[09:29:53] <IchGuckLive> morning what halpin indicatesd mashine is moving
[09:30:14] <IchGuckLive> XY is enoph to detect
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[09:33:10] <IchGuckLive> got motion current vel
[09:33:14] <IchGuckLive> B)
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[11:40:09] <mhaberler> ferror-related patent by Fanuc: http://www.google.com/patents/US5691616
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[12:39:16] <IchGuckLive> hi does motion.in-position trigger every gcode line ?
[12:39:40] <IchGuckLive> on G64
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[12:55:25] <IchGuckLive> no it does not trigger
[12:56:19] <IchGuckLive> im trying to few the gcode in hal the line we are coming from the line we are going 2
[13:24:39] <IchGuckLive> cradek: ?
[13:25:45] <IchGuckLive> someone sees a idee hoew i can see the next line in hal
[13:26:06] <IchGuckLive> the way where we are comming from i can log via lineno
[13:27:35] <IchGuckLive> as halui.axis.x.pos-relative showes where we are
[13:27:45] <IchGuckLive> at linenumber change
[13:27:56] <IchGuckLive> but the next line
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[15:47:40] <IchGuckLive> jepler: ?
[15:48:26] <IchGuckLive> or cradek maybe
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[18:43:01] <IchGuckLive> i made it with a trick as always i hackt axis
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[18:43:53] <IchGuckLive> and put the g-code into usr/tmp in the user python component reloded it and get the calculations of a folowing angel
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[18:44:02] <IchGuckLive> and act on that angel
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[19:06:31] <IchGuckLive> http://mechmo.de/jesus_dwell.mp4 it does not sow in real speed but it stos at the points where it shoudt in live changing time and deg also on act low hi all
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[19:54:36] <zultron> Hi L84Supper, I didn't mean to imply there's a schedule. :)
[19:54:55] <zultron> I'm just trying to knock this out so I can move on to other projects.
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[19:55:43] <L84Supper> slave driver! :)
[19:55:45] <zultron> And hoping to get as much good advice as possible in the process.
[19:56:16] <zultron> Ha! Yeah, I've been putting pressure on everyone.
[19:56:30] <L84Supper> I sent him the link, he'll look at it later
[19:57:02] <L84Supper> we are going to be working with this mostly likely on a regular basis for the next few years
[19:57:26] <L84Supper> adding full time devs after the holidays in China
[19:57:48] <zultron> On LCNC x86 Xenomai, you mean?
[19:57:58] <L84Supper> yes + RTAI
[19:58:38] <zultron> I'm working with the Xenomai guys to create 'one-size-fits-all' packages now. We're talking about hosting them on the Xenomai site.
[19:58:47] <L84Supper> great
[19:59:32] <L84Supper> it's always been small projects working with it, so it's never really gotten organized
[19:59:38] <zultron> I've already got packages for el6 and deb that work, though still a problem or two.
[20:00:20] <L84Supper> zultron: do you think that the distros will start to support packages?
[20:00:24] <zultron> But even if we push this stuff out now, of course memleak can look later, so really no rush.
[20:00:53] <L84Supper> or do you think it's going to have to be something separate on the xenomai site?
[20:01:18] <zultron> RHEL and Fedora will never support packages. I don't know what the Deb/Ubuntu policies are, but they do seem to have PREEMPT-RT kernels in sid.
[20:01:37] <zultron> s/never support packages/never support more than one kernel package/
[20:02:05] <zultron> So, RH-like OSes, no; Deb/Ubuntu, maybe, but ask someone else.
[20:02:14] <L84Supper> yeah, nothing like having to deal with multiple sets of kernel issues
[20:02:57] <L84Supper> use at your own risk but it works for me packages are at least a step in the right directio
[20:03:01] <zultron> There are 3rd party repos like elrepo.org that could be options; the Xenomai project is an option; or even the LCNC project.
[20:03:36] <L84Supper> a well detailed howto is an improvement
[20:03:45] <zultron> Yeah. I don't think even the Deb/Ub rt packages are really supported.
[20:04:14] <zultron> Howtos nearly done: http://wiki.linuxcnc.org/cgi-bin/wiki.pl?XenomaiKernel
[20:04:27] <L84Supper> most LinuxCNC users are just going to use whatever is on the LiveCD
[20:04:39] <zultron> None for RH-like, though. It's just too hard to make kernel packages for these distros.
[20:05:00] <L84Supper> others have their own agendas and sometimes the resources to go with it :)
[20:05:15] <zultron> Well, I hope not, actually. I hope they can follow simple instructions to add a 3rd party repo and add LCNC to their existing machines.
[20:05:45] <L84Supper> and it lays groundwork to move to other distros if Ubuntu gets any nuttier
[20:07:43] <zultron> This has been my first time using Ubuntu (or Deb-like). The desktop's awful, but no worse than what they've done with recent Fedora releases. But it's been fine as long as I'm going through ssh. :)
[20:07:56] <zultron> Anyway, gotta run, my boy needs attention.
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[21:25:07] <dgarr> i'm seeing segfaults when axis exits (git-master,simulator) related to boost perhaps? anyone else see this?
[21:25:09] <dgarr> http://www.panix.com/~dgarrett/stuff/axis_coredump.txt
[21:25:29] <dgarr> oh, this is on xubuntu12.04
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[21:55:59] <mhaberler> what does runtests say
[21:57:17] <dgarr> Runtest: 113 tests run, 113 successful, 0 failed + 0 expected
[22:02:25] <mhaberler> it obviously dies during C startup; the boost message is a consequence of that (shouldnt be, but it's not the cause afaict)
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[22:02:57] <mhaberler> does the axis window show up at all?
[22:04:23] <mhaberler> could you grep for PRELOAD_WORKAROUND in src/* ?
[22:05:23] <seb_kuzminsky> cutter comp is confusing me
[22:05:57] <seb_kuzminsky> i'm trying to use dynamic cutter comp to sneak up on a part, but for some values of radius, the motion isn't what i expect
[22:06:15] <seb_kuzminsky> here's a pic: http://highlab.com/~seb/cutter-comp/bad-cutter-comp.png
[22:06:48] <seb_kuzminsky> the traverse moves (dashed lines) coming up from the bottom of the preview are the cutter comp entry moves
[22:07:05] <dgarr> the axis window shows up (axis runs ok, i just notice the segfault everytime it closes)
[22:07:06] <seb_kuzminsky> the highlighted lines are the first feed after the cc entry
[22:07:33] <seb_kuzminsky> the paths on the right are done with higher cutter radius, the paths on the left with lower
[22:07:44] <seb_kuzminsky> program is here: http://highlab.com/~seb/cutter-comp/broken.ngc
[22:08:15] <seb_kuzminsky> notice that with large cutter radii (the paths on the right), the first feed after the entry move backtracks
[22:11:22] <mhaberler> Hi Seb!
[22:11:36] <seb_kuzminsky> hi michael
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[22:12:06] <mhaberler> would you mind passing us a password-free copy of your buildbot configs?
[22:12:18] <seb_kuzminsky> sure, hold on
[22:13:33] <mhaberler> or are you close to getting the xenomai kernel setup going?
[22:14:43] <mhaberler> then we'd rather wait for a few days; John has made great progress with the kernel packaging
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[22:15:22] <seb_kuzminsky> http://highlab.com/~seb/emc2/master.cfg
[22:16:55] <seb_kuzminsky> i have a xenomai vm set up, but haven't added it to the buildbot yet
[22:17:06] <mhaberler> ah, great
[22:17:14] <mhaberler> did the virtio stuff work?
[22:17:25] <seb_kuzminsky> i also need to tweak the config to pass the right arguments to src/configure
[22:17:41] <seb_kuzminsky> and teach the debian packaging stuff about the new dependencies etc
[22:17:49] <seb_kuzminsky> i haven't tried the new virtio kernel yet
[22:17:52] <mhaberler> right, thats kind of a mystery to me
[22:18:13] <seb_kuzminsky> it shouldn't be a big deal, i just need to find time for it
[22:18:13] <mhaberler> I would think in terms of dependencies its only the xenomai userland support deb
[22:18:22] <seb_kuzminsky> that sounds right
[22:18:32] <mhaberler> any way I can help with it?
[22:18:52] <seb_kuzminsky> but the linuxcnc deb needs to depend on different things when it's built for different rtos options
[22:19:02] <seb_kuzminsky> so just some scripting glue, no big deal
[22:19:21] <seb_kuzminsky> yeah, wanna come do my dayjob for me so i can focus on this?
[22:20:10] <mhaberler> I am considering a unified binary approach where a single build supports xenomai-user,rt-preempt-user and posix; that would be one package for all
[22:20:32] <seb_kuzminsky> neat
[22:20:38] <seb_kuzminsky> plus a different package for rtai
[22:20:44] <mhaberler> right
[22:21:10] <mhaberler> I dont think there's a point in building xenomai-kernel, this will die off anyway
[22:22:44] <seb_kuzminsky> ok
[22:23:23] <mhaberler> re dayjob - maybe it might make sense to have a second person in the loop
[22:23:57] <seb_kuzminsky> i'd welcome help on the buildbot
[22:24:36] <seb_kuzminsky> it's currently not set up well for collaboration, as the server that runs the buildmaster vm and all the buildslave vms lives in my garage, behind my wonky home firewall
[22:24:46] <mhaberler> is that script actually the only linuxcnc-dependent file of the whole setup?
[22:25:25] <seb_kuzminsky> no
[22:25:44] <seb_kuzminsky> there's a bunch of configuration needed on the buildslaves, plus a pbuilder setup
[22:26:13] <mhaberler> well what if we find it a different or second home
[22:26:15] <seb_kuzminsky> details here: http://buildbot.linuxcnc.org/buildslave-admin-guide.html
[22:26:58] <seb_kuzminsky> it's been years since anyone offered to run a buildslave, so i closed the hole in my firewall for incoming buildslave connections to the buildmaster
[22:27:33] <mhaberler> well honestly I dont think this is a long-term viable situation
[22:27:42] <seb_kuzminsky> heh
[22:28:03] <seb_kuzminsky> define long term
[22:28:14] <seb_kuzminsky> it's been working well for years
[22:28:59] <mhaberler> I wasnt saying it doesnt, this isnt a critique - you drop out for any reason, package production stops
[22:29:13] <seb_kuzminsky> yeah that's true :-/
[22:29:16] <mhaberler> see
[22:29:58] <mhaberler> ok, I would think the first step is to replicate the setup on a second machine, and get a second person into the know
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[22:30:55] <seb_kuzminsky> you want to run two buildbots? in case mine goes down?
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[22:33:00] <dgarr> mhaberler: i see #undef PRELOAD_WORKAROUND in config.h.in ../scripts/test-libgl-bug.sh returns with status =0
[22:33:07] <mhaberler> Again, I'm not critisizing here - I just think there should be not any critical piece in the chain which depends on a single setup or person - its abount redundancy
[22:33:26] <seb_kuzminsky> i agree, and i'm open to suggestions on how to set it up
[22:33:54] <mhaberler> I have a well connected machine in a datacenter, that would be one option
[22:33:58] <seb_kuzminsky> ideally there'd be a shared cluster somewhere that the linuxcnc-buildbot team all had access to
[22:34:01] <seb_kuzminsky> yes
[22:34:10] <seb_kuzminsky> how many cpus does it have?
[22:34:14] <mhaberler> do you run this on several machines?
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[22:34:15] <mhaberler> 2 xeon
[22:34:41] <mhaberler> 8gb or so, 2tb
[22:35:44] <seb_kuzminsky> mine's a dual xeon quad core, so 16 cpus, 32 gigs of ram
[22:35:48] <seb_kuzminsky> all those vms eat a lot
[22:36:02] <mhaberler> what's the requirement for the cluster in terms of driving it?
[22:36:03] <zultron> buildbot allows distributed build slaves. If a buildbot buildmaster didn't consume a lot of resources, it would be pretty trivial to create a centralized buildmaster just about anywhere.
[22:36:35] <seb_kuzminsky> it's useful for the slaves to be well connected to the master in this case, because they upload a lot of build products (debs & docs mostly)
[22:36:57] <zultron> The qemu project allows users to contribute buildbots for arches they care about: http://wiki.qemu.org/ContinuousIntegration
[22:37:17] <zultron> I see, so the master would need at least big disk space.
[22:37:48] <seb_kuzminsky> zultron: we do the same, though no one's volunteered any for years, and the slaves that were volunteered long ago were not maintained well enough to be useful
[22:38:00] <seb_kuzminsky> the master doesn't need that much disk
[22:38:10] <mhaberler> what do you need on a slave?
[22:38:35] <seb_kuzminsky> the current master has 25 gigs and it's plenty
[22:38:54] <seb_kuzminsky> the slaves need less, i think they're all running on 10 gigs of disk and 2 gigs of ram each
[22:39:15] <mhaberler> I mean in terms of packages, and forms of access
[22:39:20] <seb_kuzminsky> the slaves that do packaging might benefit from more ram, so they can fit the pbuilder chroot in ram
[22:39:38] <seb_kuzminsky> the slave requirements are documented in the slave admin guide i just linked above
[22:39:42] <seb_kuzminsky> http://buildbot.linuxcnc.org/buildslave-admin-guide.html
[22:39:46] <seb_kuzminsky> not a lot
[22:40:07] <seb_kuzminsky> i usually install ubuntu server and add a small handful of packages, build-essential and buildbot and a few more
[22:40:12] <mhaberler> looks straghforward
[22:40:17] <seb_kuzminsky> it's very straightforward
[22:41:11] <mhaberler> is ubuntu a requiremend? I have a debian wheezy machine
[22:41:21] <seb_kuzminsky> no, debian should work
[22:42:07] <seb_kuzminsky> the slaves just need to be able to build linuxcnc, and the master just needs to be able to manage a debian archive
[22:42:28] <seb_kuzminsky> well, i gotta go do the week's grocery shopping
[22:42:34] <mhaberler> sure
[22:42:51] <seb_kuzminsky> i'll try to get the xenomai slave going sometime soonish
[22:44:20] <mhaberler> I'll replicate the slave setup, see what can be learned
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