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[00:01:03] -!- kwallace3 [kwallace3!~kwallace@tmb-255.sonnet.com] has parted #linuxcnc-devel
[00:01:31] <cpresser> thats the commit which change the sysfs-api:
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/drivers/pci/pci-sysfs.c?id=5136b2da770d53f026ab091f0423729ebf37a6b5
[00:02:38] <cpresser> ill try 3.14-rt again with a symlink from enabled to enable
[00:04:12] <jepler> I doubt you can create a symlink there
[00:04:22] <jepler> you could try with the source modified to spell "enable" as "enabled"
[00:04:41] <cpresser> yeps, but i dont want to recompile yet :)
[00:05:25] <cpresser> damm.. you are right. read-only-fs :/
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[00:06:37] <cpresser> could you give me a hint where to change this in linuxcnc?
[00:28:09] <jepler> cpresser: src/rtapi/rtapi_pci.c
[00:28:10] <jepler> - snprintf(path, sizeof(path), "%s/enable", dev->sys_path);
[00:28:17] <jepler> try with "enable" changed to "enabled"
[00:29:35] <cpresser> thx
[00:30:20] <jepler> cpresser: yes I found the same commit after some searching. looks like the semantics of "enabled" will be the same as "enable"
[00:32:13] <KGB-linuxcnc> 03Jeff Epler 05jepler/uspace-pci-sysfs-enabled e889b79 06linuxcnc 10src/rtapi/rtapi_pci.cc uspace: compensate for kernel API breakage * 14http://git.linuxcnc.org/?p=linuxcnc.git;a=commitdiff;h=e889b79
[00:32:53] <jepler> this branch, which I think will be available from buildbot's "scratch" repo in 1.5 hours or so, is an attempt at fixing it "portably". It still works on my kernel, and should fall back to using the "enabled" file on a system like yours
[00:33:35] <jepler> I didn't test it very hard though
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[00:35:13] <jepler> in fact maybe I didn't test it at all
[00:35:34] <jepler> seb_kuzminsky:
[00:35:34] <jepler> hm2/hm2_5i20.0: The hm2 pet_watchdog function is no longer needed.
[00:35:34] <jepler> hm2/hm2_5i20.0: It will be removed before LinuxCNC 2.7.
[00:35:37] <jepler> seb_kuzminsky: is it time?
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[00:44:57] <jepler> cpresser: it seems like 3.14 is no longer directly available via apt-get even with wheezy-backports enabled, though the url you gave me does work. rebooting with 3.14-rt to check my own hm2-pci hardware still works
[00:45:01] <jepler> cpresser: thanks for the bug report btw
[00:45:08] <jepler> even if I didn't want to believe it initially
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[00:46:20] <jepler> ok, the fix is only a half-fix
[00:50:16] <KGB-linuxcnc> 03Jeff Epler 05jepler/uspace-pci-sysfs-enabled 52bfb20 06linuxcnc 10src/rtapi/rtapi_pci.cc uspace: compensate for kernel API breakage * 14http://git.linuxcnc.org/?p=linuxcnc.git;a=commitdiff;h=52bfb20
[00:50:23] <jepler> I think this one's right
[00:50:29] <jepler> bbl
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[01:07:02] <cpresser> jepler: thx for the fast fix
[01:07:24] <cpresser> ill test it tomorrow. its already 2am in germany. need to go to bed.
[01:09:05] <cpresser> btw, I did post a patch for pncconf to the ML earlier.
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[01:17:32] <jepler> cpresser: word fom Greg Kroah-Hartman already that yes, it's a bug; he'll produce a patch for stable kernels
[01:17:53] <jepler> http://thread.gmane.org/gmane.linux.kernel/1817337/focus=36499
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[01:40:53] <andypugh> That was quick, wasn’t it?
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[02:02:17] <cpresser> jepler: so that means that i discovered a kernel bug? thats a first for me :)
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[02:09:24] <cpresser> regarding pncconf, I will try to deliver a complete patchset tomorrow (i found 3 issues)
[02:12:31] <seb_kuzminsky> jepler: i'll remove pet_watchdog after i write a note in the Updating to 2.7 document about removing it
[02:12:47] <seb_kuzminsky> i'm planning to put that kind of info in our git docs this time around, instead of on the wiki
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[02:24:47] <jepler> andypugh, cpresser: yes and yes
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[03:22:21] <skunkworks_> why is it that I think 3.2 should be newer than 3.16?
[03:23:30] <skunkworks_> I don't I can get past it looking like a decimal..
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[03:33:39] <Tom_itx> it should :D
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[12:48:13] <lair82> Good morning gentlemen, I have ran into an issue on one of our turning centers, we keep getting a fault of " Bug: Call stack Underrun" when we try to run a certain program. I am not sure what causes this. Here is a link to the program that is giving us issues,
http://pastebin.com/EfUmTtVm . If this should be on the user channel, let me know.
[12:53:14] <skunkworks> lair82, what version of linuxcnc
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[13:01:30] <lair82> skunkworks this machine is running 2.6
[13:07:41] <jepler> that code has g-codes not recognized by stock linuxcnc (m42 is the first one I encountered); this could be a bug in remap, or a bug in the code implementing the machine's specific remap details
[13:09:04] <jepler> so a proper bug submission would require not only the triggering gcode but a "sim" configuration modified with enough of your custom remapped code to reproduce the problem. (by "sim" I mean a configuration which runs without attached hardware)
[13:09:14] <lair82> m42 is my gearchange command, which I checked that stuff, the machine will run any other program just fine, just not this one
[13:10:01] <lair82> We have that m42 in the very beginning of every program. We do most work in high gear, m41 is our low range command
[13:10:02] <jepler> after removing M42 and other nonstandard codes, I end up with
[13:10:10] <jepler> Radius to end of arc differs from radius to start: start=(Z-6.4995,X2.4200) center=(Z-6.5312,X2.4024) end=(Z-6.5056,X2.4362) r1=0.0363 r2=0.0424 abs_err=0.006142 rel_err=14.4866%
[13:10:18] <jepler> N520G03X2.4362Z-6.5056I-0.0176K-0.0317
[13:10:29] <zeeshan|2> looks like an interpolation error to me :P
[13:12:26] <lair82> Thats what I was figuring, G03/G04 problems, after zeeshan mentioned interpolation. Now I have to go get thru the shop supervisors thick skull that his program is crap, and not my turning center!!!
[13:12:37] <lair82> Thanks Guys, :)
[13:13:35] <jepler> that could be true, but it's unclear why you don't get the "good" error message like I do running without remap and just removing your nonstandard codes
[13:13:57] <jepler> that remap code, I know users love it but it's so buggy I wish we had refused to incorporate it in its current form
[13:14:00] <zeeshan|2> lair82: i used to get a similar code when i was using fancy interpolation mode in cam
[13:14:07] <zeeshan|2> i set it back to quadrant mode and it fixed things
[13:14:18] <zeeshan|2> *similar error
[13:15:47] <lair82> I using gmoccapy, if that makes a difference. Do you happen to know what line number in the program it is referencing?
[13:15:58] <jepler> N520 I think
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[13:20:36] <jepler> lair82: I do not use gmoccapy. if you are submitting a bug, you would want to determine whether the problem is in fact specific to the UI
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[13:22:53] <lair82> No problem there, it's our program, the post processor spits these programs out from time to time with issues like this, and I have seen the fault in the way that you gave it back to me, had I seen that, I would have had this fixed late yesterday. But all I am getting is that call stack underrun.
[13:27:30] <lair82> Speaking of that remap code, here are the links to that m42 code that we use. Is this something that could be done in python, or is the way that I am doing it the best way?
http://pastebin.com/0gF5uz7D http://pastebin.com/qRRuEM5g
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[14:04:03] <jepler> linuxcnc gcode has built-in codes to manipulate digital and analog outputs.
http://linuxcnc.org/docs/html/gcode/m-code.html#sec:M62-M65
[14:06:44] <jepler> and personally I'd use a "not" in hal rather than setting two different values
[14:06:56] <jepler> (unless all 4 combinations are actually meaningful)
[14:07:59] <jepler> I don't know enough about remap to say how it's best to use it
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[15:24:27] <seb_kuzminsky> i'm switching back and forth between linuxcnc-sim 2.6 and linuxcnc-uspace 2.7~pre debs, and they correctly uninstall each other
[15:24:33] <seb_kuzminsky> so we have that going for us, which is nice
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[15:30:04] <seb_kuzminsky> cmorley: did you see the email from Carsten Presser to the emc-users list yesterday? it includes a patch for some typos in pncconf
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[16:02:27] <cpresser> seb_kuzminsky: I am baout to post two other fixes.. working on the debian-packaging right now
[16:04:17] <seb_kuzminsky> wow! cool
[16:05:00] <seb_kuzminsky> i can merge the packaging stuff for you, but i really want cmorley's sign-off on the patches that change pncconf - i dont know that code at all
[16:05:30] <seb_kuzminsky> cpresser: are you subscribed to the emc-developers list?
[16:05:51] <cpresser> nope. I am only on emc-users
[16:05:55] <seb_kuzminsky> ah, ok
[16:06:14] <cpresser> I am already involved in to many projects.. right now i am building a machine, thats why I am workign with the code
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[16:07:00] <seb_kuzminsky> heh yeah
[16:07:21] <seb_kuzminsky> well, i appreciate that you took the time to report the bugs & send us patches, that's very helpful
[16:08:12] <cpresser> its just my narcism. i want to see my paches in upstream^^
[16:08:59] <cpresser> the basic idea is: i fixed a problem for myself, why not go the extra mile and create a clean patch, so everyone can profit.
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[16:11:13] <seb_kuzminsky> that's the noblest definition of narcissism i've heard yet ;-)
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[16:13:41] <seb_kuzminsky> if you do yout work in git (see
http://linuxcnc.org/docs/devel/html/code/Contributing-to-LinuxCNC.html), your name will be on the Author: line in out git repo, for all the world to see
[16:14:03] <seb_kuzminsky> regular patches are fine too of course
[16:14:10] <cpresser> i do work with git.. but i am to lazy right now
[16:14:17] <seb_kuzminsky> heh
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[16:22:48] <cpresser> okay... the missing pncconf module seems to be a Makefile-isse (install-python-target).
[16:23:10] <seb_kuzminsky> do you know if it works when compiled for run-in-place?
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[16:23:21] <cpresser> according to PCW it does
[16:23:49] <seb_kuzminsky> that probably means the module gets installed correctly, but not compied into the debian package correctly
[16:23:55] <cpresser> http://nopaste.info/3dd30ca713.html
[16:24:02] <cpresser> thats from the Makefile.
[16:24:26] <cpresser> in line 10-17 the modules get installed, but _not_ the pncconf modules
[16:24:42] <cpresser> my money is on that. not the debian.files list
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[16:26:58] <seb_kuzminsky> hmm
[16:27:13] <seb_kuzminsky> huh, pncconf shebangs python2.4 explicitly, that seems wrong
[16:27:56] <seb_kuzminsky> and it plays tricks with python's libdir at startup time to find its module...
[16:28:35] <cpresser> yep, thats not very nice... i spend some time debugging that^^
[16:29:13] <seb_kuzminsky> so there actually is no pncconf module, just a bunch of submodules that get explicitly pulled in
[16:29:23] <cpresser> proposed (untested!) patch for issue 400:
http://nopaste.info/e89a5979cb.html
[16:30:17] <seb_kuzminsky> *.py seems excessive
[16:30:40] <seb_kuzminsky> the pncconf Submakefile defines PNCCONF_MODULES, that seems like the list to use
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[16:31:16] <cpresser> yes... those are copied (by some unknown magic) to /lib/python/pncconf during build
[16:31:46] <cpresser> so .py is safe. its the same for stepconf, ...
[16:31:51] <seb_kuzminsky> ah, i see, yes
[16:33:30] <cpresser> those 3 patches should make pncconf work again. hopfully
[16:34:12] <cpresser> another issue with pncconf is that PID-Tuning is disabled when trying to setup closed-loop-stepper driver. but i wont dig into that
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[16:34:42] <cpresser> and its not a big problem.. ppl who want such an unusual setup can do this manually :)
[16:35:53] <seb_kuzminsky> will you attach that latest patch to #400 pls?
[16:36:00] <cpresser> the .hal generated by pncconf when using encoder+stepgen for the same axis are broken.. they have two drivers in the "x-pos-fb" net. one from the stepgen, one from the encoder.
[16:36:57] <cpresser> i dont have a SF.net login. and dont plan to get one. sorry
[16:37:08] <seb_kuzminsky> steppers with encoder feedback are indeed an unusual combination, but i agree if pncconf lets you specify that, then it should emit valid .hal files
[16:37:11] <seb_kuzminsky> ok, i'll do it
[16:37:17] <seb_kuzminsky> logger[psha]: link pls
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[16:45:19] <seb_kuzminsky> https://sourceforge.net/p/emc/bugs/401/
[16:46:02] <seb_kuzminsky> cpresser: thanks for the bug report
[16:48:39] <seb_kuzminsky> cpresser: wait, you said 3 patches, but i only count two from you
[16:48:52] <seb_kuzminsky> the private_data.py_typotix.patch that you attached to your email
[16:49:01] <seb_kuzminsky> and the makefile fix that you pasted above
[16:49:06] <seb_kuzminsky> what did i miss?
[16:49:06] <cpresser> one is on the ML, only two lines
[16:49:55] <seb_kuzminsky> oh, i see, it's in the body of the email, not as an attached patch file
[16:49:56] <seb_kuzminsky> got it
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[18:01:18] <jepler> cpresser: I don't know if you build kernels, but there's been a kernel patch offered for the /sys "enable" file bug.
https://lkml.org/lkml/2014/10/30/559
[18:02:31] <jepler> I've back-ported the patch to 3.14 and am building a new rt kernel
[18:04:06] <jepler> the patch as I've adapted it for 3.14 is
http://emergent.unpythonic.net/files/sandbox/pci-fix-name-of-enable-sysfs-file.patch
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[18:19:20] <jepler> hmm they want to take away our iopl()
https://lkml.org/lkml/2014/10/29/544
[18:21:04] <jepler> with uspace I should test if /dev-based access to the parport is fast enough for epp-style boards
[18:21:34] <jepler> I think that's the only thing that needs iopl (pci stuff doesn't)
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[18:35:37] <Tom_itx> mmm plane crashed at our airport today
[18:35:45] <Tom_itx> some of you've been there
[18:36:20] <Tom_itx> hit a flight safety training building
[18:36:25] <Tom_itx> for cessna citations
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[18:53:47] <kwallace> Tom_itx, which airport? I'm on this one
http://www.wallacecompany.com/E45/cam2_full.html
[18:55:33] <kwallace> Oh, I got it, Witchita.
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[19:52:05] <cpresser> jepler: thanks for the patch. however, i dont want to compile my own kernel. ill rather wait for the patch to hit upstream and get a signed debian package :)
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[20:06:45] <seb_kuzminsky> jepler: did you see
https://sourceforge.net/p/emc/bugs/402/
[20:10:25] <jepler> seb_kuzminsky: no, I hadn't.
[20:10:42] <jepler> oh traces of probe_parport are left
[20:10:44] <jepler> we should delete that shit
[20:10:56] <jepler> but on the other hand, software step generation is not gonna work on uspace
[20:11:40] <PCW> well.... i get ~26 usec on Preemt-RT on a haswell
[20:11:56] <seb_kuzminsky> that's pretty good
[20:12:11] <PCW> compiling and running youtube videos
[20:12:34] <jepler> hmmm apparently my debian kernel build on x86_64 builds all of them
[20:12:37] <jepler> it's working on armmp now
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[20:13:42] <PCW> and 26 usec is a rare outlier
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[20:14:19] <jepler> maybe I misread what was scrolling by
[20:20:27] <skunkworks_> question - when making a python hal componant.. How can you set pins values before it becomes active?
[20:20:50] <seb_kuzminsky> set the pins before calling hal ready?
[20:21:10] <seb_kuzminsky> (i dont know if that works, but that's what i'd try first)
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[20:24:25] <jepler> for an output pin you can set a value on it before or after calling ready on the component
[20:25:00] <jepler> I think the ability to set a default value of an unconnected input pin is not present in python. imo it could be added as a new optional value to the "newpin" method of components.
[20:25:01] <skunkworks_> it looks like you can set in pins also from within python.
[20:25:58] <jepler> that's bad :(
[20:26:23] <skunkworks_> I have an issue if my hal componant has 2 lines - loadusr capture and the next line setp capture.blur 1.. It gives me pin not found.
[20:26:35] <skunkworks_> *hal file
[20:26:46] <jepler> you need to use an appropriate -W flag for loadusr to wait for the component to be ready
[20:26:56] <skunkworks_> ah - ok
[20:27:25] <jepler> I agree, there seems to be no write protection of pins in hal module. that's a bug.
[20:33:39] <skunkworks_> -W worked
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[23:10:35] <andypugh> Playing more with feed-per-rev and JA6. I get about the right feed rate if I divide the inout to motion.spindle-speed-in by 140.
[23:11:22] <andypugh> (that’s RPM / 8400 in the actual setup I have)
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[23:12:33] <cradek> huh, is master wrong too?
[23:13:19] <andypugh> I also found a really good reason _not_ to do a program by looped MDI commands from Python. It’s obvious really, you can’t stop it :-) (well, you can stop one line at a time..)
[23:13:39] <andypugh> If master was wrong people would be complaining, surely?
[23:13:52] <cradek> I bet advanced lathe users are few
[23:14:05] <andypugh> This isn’t a lathe
[23:14:08] <cradek> I really need to exercise lathe features on 2.7 (new tp)
[23:14:29] <cradek> oh ok, no matter, I just think of fpr as a lathe feature
[23:14:51] <andypugh> Yeah, normally, but I am using it on a mill (well, a hobbing machine)
[23:15:24] <andypugh> It would be interesting to try it on a mill running master, just to check.
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[23:50:35] <KGB-linuxcnc> 03Sebastian Kuzminsky 052.6 0ee553b 06linuxcnc 10(12 files in 5 dirs) use /usr/bin/python, not /usr/bin/python2.4 * 14http://git.linuxcnc.org/?p=linuxcnc.git;a=commitdiff;h=0ee553b
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