#linuxcnc-devel | Logs for 2012-03-27

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[00:30:11] <CIA-51> 03cmorley 07v2.4_branch * r52ab39e0199e 10/src/emc/usr_intf/stepconf/stepconf.py: stepconf -fix spindle pwm for ccw direction
[00:30:21] <CIA-51> 03cmorley 07v2.4_branch * rbace6556decd 10/src/emc/usr_intf/stepconf/stepconf.py: stepconf -fix spindle-pwm so spindle-on will work too
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[00:41:25] <CIA-51> 03cmorley 07v2.5_branch * r51c7e1785d2c 10/src/emc/usr_intf/stepconf/stepconf.py: Merge branch 'v2.4_branch' into v2.5_branch
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[03:01:08] <seb_kuzminsky> KimK: you around?
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[03:01:30] <KimK> Hi Seb, you bet!
[03:01:33] <seb_kuzminsky> hi!
[03:01:47] <KimK> How are things there?
[03:01:52] <seb_kuzminsky> you want to look at a commit in a branch in mhaberler's repo?
[03:01:56] <seb_kuzminsky> things are good here :-)
[03:03:07] <KimK> Yes, he made a branch(?) for me and asked me to look at it, but I've never pulled a foreign branch from a foreign repo, and I think I succeeded in screwing up my local repo, so I recloned.
[03:03:29] <KimK> I thought I should get some advice before retrying
[03:04:27] <seb_kuzminsky> you can't mess anything up too bad by just running git commands, unless you actually rm something in the .git directory you can alway get back what you had
[03:04:33] <KimK> I was on v2.5_branch when I pulled his, and then I was "...ahead by 1188 commits..."
[03:04:38] <seb_kuzminsky> (that's the unix rm command by the way, not 'git rm')
[03:05:09] <seb_kuzminsky> 'git pull' is almost always the wrong thing to do (but it won't lose any of your state)
[03:05:31] <cradek> his branch was probably based on master, so you pulled all of master (through his repository) onto your v2.5_branch
[03:05:38] <KimK> I thought maybe I have to create the new branch locally first and then check it out and then pull to it? But I wasn't sure so I waited.
[03:05:40] <seb_kuzminsky> hi chris!
[03:05:43] <cradek> hey
[03:05:51] <KimK> Hi Chris, how are you?
[03:06:03] <seb_kuzminsky> the process i think you want looks something like this:
[03:06:11] <seb_kuzminsky> git clone the linuxcnc.org repo
[03:06:43] <seb_kuzminsky> git remote add mhaberler git://git.mah.priv.at/emc2-dev.git
[03:06:48] <seb_kuzminsky> git fetch mhaberler
[03:06:55] <seb_kuzminsky> git branch -a | grep mhaberler
[03:07:15] <seb_kuzminsky> # figure out the branch name you want from mhaberler's branches
[03:07:20] <seb_kuzminsky> git checkout $BRANCHNAME
[03:07:23] <seb_kuzminsky> that's it!
[03:07:31] <seb_kuzminsky> or you can look at it without checking it out by running:
[03:07:40] <seb_kuzminsky> gitk mhaberler/$BRANCHNAME
[03:07:53] <seb_kuzminsky> do you know what all of those commands do?
[03:08:32] <KimK> I'm not sure about git branch -a | grep mhaberler, still looking at the rest...
[03:08:45] <KimK> The name is...
[03:09:10] <KimK> fractional-linenumbers
[03:09:20] <seb_kuzminsky> "git branch" lists local branches, the -a flag means "also list remote branches"
[03:09:39] <KimK> Ah, OK
[03:09:46] <seb_kuzminsky> remote branches have the name of the remote in the name, so grepping for mhaberler shows the branches in mhaberler's repo
[03:09:59] <seb_kuzminsky> (or branches in other repos that have "mhaberler" in the name for some reason)
[03:11:13] <KimK> Should I have master checked out when I do all this, or doesn't it matter?
[03:11:19] <seb_kuzminsky> doesnt matter
[03:11:49] <KimK> OK, I'll start at item 2 (I've already recloned)
[03:12:03] <seb_kuzminsky> when you run 'git checkout fractional-linenumbers' it'll notice you don't have a branch by that name, find it in your remotes, create a new local branch by that name, and set it to be equal to the remote branch of the same name
[03:14:07] <KimK> now receiving objects, about 25%...
[03:15:14] <KimK> Sorry to be so dense about this, I'm still pretty new to git's "other" features. I only know the most basic ones.
[03:15:31] <seb_kuzminsky> you know more than most i think :-)
[03:16:37] <KimK> Yikes, about 4 screenfuls of branches, he's a busy guy
[03:17:54] <seb_kuzminsky> he is nothing if not prolific, our mah
[03:24:11] <KimK> OK, it worked! I have checked out (green) fractional-linenumbers. So now do I build run-in-place in the usual manner? With ./autogen.sh, ./configure, make, make install-menus, sudo make setuid ?
[03:24:28] <seb_kuzminsky> yes
[03:24:35] <seb_kuzminsky> i'd skip install-menus, but that's me
[03:25:54] <KimK> OK, starting it now. (Yes, maybe that's a good skip. I'm so used to ./configure --enable-build-documentation that I don't know if I can stop myself from typing it there, lol)
[03:26:58] <KimK> Looking at wiki, and remembering "cd src" first. (It's coming back to me now...)
[03:28:49] <KimK> make running now, 10 minutes maybe?
[03:29:09] <seb_kuzminsky> should be less if you turned off the docs
[03:29:54] <KimK> I didn't --enable them, they default to off, right? I think they're off.
[03:31:02] <seb_kuzminsky> i dont know, i always explicitly --enable or --disable the docs
[03:31:06] <seb_kuzminsky> tell us what happens!
[03:31:22] <KimK> I see you with a fix once in a while, are those from clang? Are you still whittling down on machine-found errors?
[03:35:04] <seb_kuzminsky> jepler made so much fun of me for fixing clang bugs that i stopped ;-)
[03:35:13] <seb_kuzminsky> i may get back to it when my ears stop burning ;-)
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[03:36:32] <KimK> Teach me how to do it and then he can laugh at me, that will be OK. All right, I skipped make install-menus and went right to sudo make setuid. So, done! Thanks! (Oops, I'd better try starting it first, lets see... )
[03:38:34] <seb_kuzminsky> http://buildbot.linuxcnc.org/clang/
[03:38:54] <seb_kuzminsky> click on the most recent build of master or 2.5, and take a look at the clang report
[03:39:06] <KimK> Bah, what am I doing wrong, I forgot how to start the run-in-place emc from emc2-dev, I keep getting 2.4.6...
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[03:42:01] <KimK> Ah! ./linuxcnc it seems!
[03:43:36] <KimK> OK, I've got 2.6.0~pre Sim running as Axis/3-axis! Thanks! Now to try the thing that mhaberler wanted to know...
[03:45:23] <seb_kuzminsky> nice KimK :-)
[03:46:44] <KimK> I have to throw together a test file first, working on it.
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[04:41:12] <mhaberler> hi seb_kuzminsky: still around?
[04:42:35] <seb_kuzminsky> hi mhaberler
[04:42:38] <KimK> seb_kuzminsky: It seems to be working. I hand-made two test files http://pastebin.com/cRZRK7z7 and http://pastebin.com/T0GDZNQJ and they run in mhaberler's "fractional-linenumbers", but they fault in 2.4.6, saying, bad character "." found at line so-and-so. So, so far so good, thanks mhaberler!
[04:42:48] <mhaberler> great
[04:42:57] <KimK> mhaberler: Ah, your timing is excellent, thanks again!
[04:43:44] <KimK> Sorry I don't have any of that old g-code handy, I'll look around, I just threw something together with copy-and-paste plus minor edits.
[04:43:56] <KimK> I'll look around in some old files.
[04:43:58] <mhaberler> sure, that covers it
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[04:44:29] <mhaberler> seb: what we're going to do with vfs11_vfd: make that feature conditional on the library version I guess
[04:45:09] <seb_kuzminsky> i think the feature that vfs11_vfd uses won't be in libmodbus3, if i understand their branch structure
[04:45:16] <seb_kuzminsky> it seems like a 4.0 feature to me
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[04:45:27] <seb_kuzminsky> but i haven't spoken to them so i dont know
[04:45:49] <mhaberler> this is really just about how the rs485 direction driving works; it defaults to rts wiggling which I think is find (in the current package)
[04:46:22] <seb_kuzminsky> first of all i guess we should change the configure script to check for the feature, instead of checking the library version number
[04:46:47] <mhaberler> right
[04:47:51] <seb_kuzminsky> if vfs11_vfd doesnt need the feature, if it can work with the libmodbus3 (aka libmodbus5) in precise, then maybe change vfs11_vfd.c to not require the git version?
[04:48:48] <mhaberler> its kind of an esoteric option - you can set it up such that rs485 transmit works with rts off instead of rts on
[04:49:10] <mhaberler> most folks will be ok with the package default (rts on)
[04:49:15] <seb_kuzminsky> lol, sending when rts is off
[04:49:20] <seb_kuzminsky> what'll they think of next
[04:49:32] <mhaberler> phase of the moon
[04:50:19] <seb_kuzminsky> i'd like us to fit into the larger ecosystem, by using existing packages whenever possible
[04:50:37] <seb_kuzminsky> so if you can make vfs11_vfd work with the libmodbus package in precise, i'd be all for that
[04:50:42] <mhaberler> actually the libmodbus3 detection is ok, I'll make the feature conditional in vfs11_vfd if the symbol is available
[04:51:37] <mhaberler> I hope some day I understand the numbering magic of packages ;
[04:51:40] <seb_kuzminsky> so vfs11_vfd can build with either libmodbus 3.0.1 in precise, or with the libmodbus git master, and it get the extra (esoteric) "send-with-rts-off" feature if it's building against the git version?
[04:51:48] <mhaberler> right
[04:51:53] <seb_kuzminsky> that sounds great
[04:52:41] <seb_kuzminsky> then we can Build-Recommend libmodbus-dev, and our precise debs should get the vfs11_vfd driver
[04:52:50] <mhaberler> fair enough
[04:53:09] <seb_kuzminsky> on sim only, until someone build a working rtai kernel for precise
[04:56:47] <KimK> What, about another month until precise is released/stable? I haven't been following the alphas and betas.
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[05:04:25] <seb_kuzminsky> KimK: it's due out sometime in april (hence the "04" in 12.04), i'm not sure when exactly
[05:05:32] <mhaberler> ok, gotta run, I'll have a branch in the evening and maybe you could give it a spin; my precise install is in a deplorable state
[05:07:03] <seb_kuzminsky> sure
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[05:24:46] <KimK> I updated the two test files, now at http://pastebin.com/YrqVqK59 and http://pastebin.com/1ajTPmvu I forgot to do some editing (space-removal) in a couple of spots. It should be a little better test that way, but no big deal.
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[05:33:04] <KimK> mhaberler, seb_kuzminsky: Thanks again, gents. I appreciate your help very much.
[05:35:15] <seb_kuzminsky> any time :-)
[05:35:29] <seb_kuzminsky> i'm looking forward to seeing your clang fixes ;-)
[05:36:41] <mhaberler> uh
[05:36:47] <mhaberler> cu ;)
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[12:37:44] <joe9> my latency is off the charts whenever I access the hard disk (for the first time, such as a file never before used). the disk configuration I have is a raid-1. has anyone noticed that on your end? the disks are pretty old ones. one of them is making a noise too, when it is working.
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[13:09:32] <cradek> joe9: is that a hardware raid card? In one machine I had to pull one of those fancy things and replace it with a normal scsi card.
[13:09:48] <joe9> cradek: no, a software raid.
[13:09:50] <joe9> mdadm
[13:10:03] <cradek> what's the hardware itself?
[13:10:39] <joe9> pata_amd is what the hard disks need to work.
[13:10:57] <cradek> so a plain old pata system
[13:11:06] <joe9> yes.
[13:11:13] <cradek> sorry, have not heard of that problem before.
[13:11:32] <joe9> !http://codepad.org/W7WEDPpL
[13:11:58] <joe9> http://codepad.org/Km2FRxXe other disk
[13:14:08] <cradek> does smart say they're ok?
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[13:18:18] <joe9> smart said there were a few errors on one sector for each disk. other than that, it said that it passed the test.
[13:19:02] <cradek> sorry, I have no guesses for you then, but it sounds unusable as-is
[13:19:23] <joe9> ok, thanks.
[13:41:41] <mhaberler> seb_kuzminsky: this branch does the right thing for me on lucid regardless of libmodbus5/libmodbus-dev origin - could you give it a spin on precise? http://git.mah.priv.at/gitweb/emc2-dev.git/shortlog/refs/heads/libmodbus-optional-rts-wiggling
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[14:06:32] <cradek> mhaberler: I think if you push a new branch to our git, it'll get built and tested
[14:07:12] <mhaberler> ok..
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[14:09:11] <CIA-51> 03mhaberler 07master * r73a66a96681a 10/ (2 files in 2 dirs): hal/user_comps/vfs11_vfd: conditionally compile RTS_MODE feature
[14:09:54] <mhaberler> oh, tested - which poort sould does that ;-?
[14:10:04] <mhaberler> poor soul
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[14:35:44] <cradek> I just meant it runs the tests.
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[14:48:18] <CIA-51> 03mhaberler 07master * r0dc234d20f61 10/src/emc/rs274ngc/ (interp_o_word.cc interp_remap.cc): interp: cleanup clang-generated warnings
[14:48:27] <CIA-51> 03mhaberler 07master * rb9c962aaceda 10/tests/interp/fractional-linenumbers/ (README expected test.ngc test.sh): tests: fractional line numbers
[14:48:35] <CIA-51> 03mhaberler 07master * rdefa439872bc 10/ (docs/src/gcode/overview.txt src/emc/rs274ngc/interp_read.cc): interp: permit fractional line numbers like Ndddd.ddd
[14:48:43] <CIA-51> 03mhaberler 07master * r2bbbc2129ab3 10/ (6 files in 3 dirs): Merge branch 'fractional-linenumbers'
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[16:27:24] <seb_kuzminsky> mhaberler: what cradek meant is, if you push a *new branch*, the buildbot will build it and test it. that way you can test stuff without putting it in master
[16:27:41] <mhaberler> aha!
[16:28:06] <mhaberler> nice feature
[16:28:08] <seb_kuzminsky> ;-)
[16:30:44] <cradek> heh those are the same words I used!
[16:32:17] <mhaberler> I finally got it
[16:32:24] <mhaberler> thanks for the patience
[16:33:38] <mhaberler> well afaict from the colorful buildbot icons, it seems to compile now
[16:34:32] <mhaberler> and if the libmodbus debian maintainer pushes a package update, it will automatically have that funny feature on next build.
[16:34:48] <mhaberler> ok, next hole..
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[18:04:25] <CIA-51> 03seb 07master * r270e2b85000a 10/debian/configure: packaging: build with libmodbus on Precise
[18:04:55] <seb_kuzminsky> ugh, nevermind, the Build-Recommends proposal was shot down :-(
[18:08:37] <pgf> just curious: are there test versions of a 12.04 LTS linuxcnc livecd available? i'm setting up a new (simple) machine, and would be happy to be a guinea pig if that would be helpful.
[18:08:59] <cradek> nope
[18:09:26] <pgf> okay. thought i should ask.
[18:11:32] <cradek> ooooh 2.5 is getting close
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[18:43:22] <JT-Shop> Sweet!
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[19:22:55] <joe9> for me, deadline I/O scheduler is the miracle for my latency issues. I was using cfq and latency was jumping around when I start glxgears, etc. deadline keeps it consistently small. no jumps of high latency periods.
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[21:42:49] <micges> cradek: in few words: what is difference between touch off fixture and workpiece?
[21:43:03] <micges> (I can't see any difference in sim)
[21:44:58] <JT-Shop> is the manual unclear?
[21:47:30] <micges> eww, I was reading wrong manual, it's 2.5 now
[21:47:38] <micges> sorry and thanks
[21:47:40] <JT-Shop> http://linuxcnc.org/docview/2.5/html/gui/axis.html#_menu_items
[21:48:02] <JT-Shop> ok, I just read it again this morning after screwing it up
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[21:51:42] <mozmck> joe9: why are you building an rtai kernel? did the 10.04 kernel not work for you?
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[22:25:17] <micges> mozmck: hi
[22:25:40] <mozmck> Hi micges
[22:25:46] <micges> are you planning playing with 12.04 kernel?
[22:26:28] <mozmck> I've been looking at it. quite a few rejects trying to patch it with the ipipe/rtai patch.
[22:26:51] <mozmck> Some are trivial, some are not as much.
[22:27:05] <mozmck> (for me anyhow.)
[22:27:28] <micges> maybe it's time to 3.8 ? :)
[22:28:51] <micges> anyway I'll be playing with this this weekend
[22:29:10] <mozmck> 3.8?
[22:30:01] <mozmck> Good! I'm patching a vanilla kernel first, and if I can get that to work I'll port it to the Precise kernel.
[22:30:02] <micges> yes, but only if it's not too young for us
[22:30:17] <mozmck> You mean
[22:30:55] <mozmck> I would imagine it would basically work.
[22:33:13] <mozmck> Some things in precise may depend on features of the newer kernel though,
[22:38:13] <joe9> mozmck: the reason I was building the kernel was that the one in the source directory crashes immediately after boot. some ftrace bug.
[22:38:29] <joe9> hence, i am trying to get the vulcano rtai to work with the kernel.
[22:39:05] <cradek> micges: did you find the docs?
[22:39:17] <micges> yes
[22:39:26] <cradek> ok yay
[22:39:55] <micges> just wondering how to translate 'fixture'
[22:40:31] <mozmck> joe9: I see. I haven't looked at the kernel stuff much for a while. Not having much time now.
[22:40:37] <cradek> sorry, don't think I can help you there...
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[22:41:33] <micges> fixture is part that holding tools on place?
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[22:44:07] <JT-Shop> micges: a fixture could be any fixed point that you touch off the tools to
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[22:44:36] <JT-Shop> in my case on the lathe I use a 0.375 dowel and touch off the Z for each tool to the spindle face
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[22:44:54] <JT-Shop> if that makes any sense
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[22:45:29] <micges> yes that makes more sense than google translator :)
[22:45:31] <micges> thanks
[22:47:20] <JT-Shop> in the case of a mill you might have a height setting tool that you Z down to so all Z offsets are the same and you only have to set the Z offset to the material with one tool
[22:49:10] <micges> ok
[23:03:01] <CIA-51> 03micges 07v2.5_branch * r3b9c9d275359 10/src/po/pl.po: Update Polish translations
[23:03:35] <micges> uff
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