#linuxcnc-devel | Logs for 2014-01-28

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[00:27:08] <seb_kuzminsky> dgarr: in the bug you just opened, #353, the g2 center doesnt make sense to me
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[00:27:43] <seb_kuzminsky> oh wait, are you using relative arc centers?
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[00:34:48] <seb_kuzminsky> looks like a real bug
[00:34:59] <cradek> I'm still trying to understand the path
[00:35:10] <seb_kuzminsky> if you do the cutter comp entry move before the g2, the g2 works fine
[00:38:26] <cradek> man that's weird gcode
[00:39:02] <cradek> I think if it's allowed, the entry arc will turn into a different arc with an astronomical radius
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[00:39:23] <seb_kuzminsky> i now think it's not a bug and things are working as intendend
[00:39:37] <cradek> did you know relative arc centers are the default?
[00:40:27] <seb_kuzminsky> notice it's g21, and the arc is bigger by just .0005 *mm*, which is below the tolerance threeshold for arcs, http://www.linuxcnc.org/docs/2.5/html/gcode/gcode.html#_center_format_arcs
[00:40:45] <cradek> I think this poison is better than the other poison we'd get if we allowed them to be even closer
[00:40:47] <seb_kuzminsky> no, i did not know that, i complained needlessly :-/
[00:41:16] <seb_kuzminsky> bbl, bus stop
[00:42:35] <cradek> if we want to allow the entry arc and the tool to be exactly the same radius, that would currently make a degenerate arc, and there would need to be special case code for changing the entry into a line instead.
[00:45:39] <Tom_itx> fwiw i think even in my cad cam it has to be a minimal difference
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[00:49:06] <cradek> currently the largest arc I can get it to generate (by changing 5.0005 to 5.0006) is 15600 mm radius
[00:49:38] <cradek> considering that, I think it would be asking for trouble to relax this check
[00:50:05] <Tom_itx> boss5 would do that
[00:50:21] <Tom_itx> they would cut all screwy in a similar case
[00:51:02] <cradek> the 15600mm radius arc runs fine, AXIS preview and motion both get it right
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[00:52:50] <cradek> I think I agree with seb that everything is working as designed, but I also agree that the error message is not strictly correct because the one radius IS less than the other radius
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[00:55:49] <cradek> a separate check for this case that gives an error like "Arc entry move is degenerate because arc and tool radii are nearly the same", or a special case that lets it decay into a line, would be the two possible fixes I can picture
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[02:17:53] <cradek> I wonder who TomP meant to send that to...
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[02:23:32] <PCW> I tried but failed at understanding it in a CNC context
[02:25:55] <Tom_itx> PCW i was gonna ask if you had further info on bit files i could include on that tut page
[02:26:07] <Tom_itx> that could be useful to a noob
[02:27:02] <PCW> Not off hand, looks pretty complete
[02:29:21] <PCW> There's some funkyness about sserial stuff on 5I20/4I65
[02:29:23] <PCW> (you need to use a different ucf file) that might be added
[02:29:25] <PCW> This is due to limitations in ISE prior to about V 11
[02:36:33] <PCW> (use 5i20ss.ucf or 4I65ss.ucf for sserial configs)
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[02:42:04] <Tom_itx> do you switch that in the TOP file?
[02:42:16] <Tom_itx> like you do the boards
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[02:46:26] <PCW> It needs to be in the .ise file (so there should be one for ss builds and one for non ss builds
[02:47:01] <Tom_itx> ahh ok
[02:47:50] <Tom_itx> is that bundled in the zip on your site?
[02:47:57] <PCW> Ill try and make a set if if get a chance
[02:48:03] <Tom_itx> ok
[02:48:18] <Tom_itx> probably won't come up soon anyway
[02:48:57] <PCW> doing a bunch of stuff for the 7I90 and 5I24 so ill add that before I rebundle everything
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[02:57:30] <micges> PCW: hi
[02:58:24] <micges> PCW: remind me under what dos version your utils from zips works?
[02:58:51] <PCW> any >3.3 probably
[03:00:47] <micges> ok
[03:01:53] <PCW> theres a util for flashing the 7I90 over epp
[03:02:58] <PCW> I am in the process of making the dist image for the 7I90 which will include this
[03:03:25] <micges> send me please sources and compiled
[03:04:07] <micges> still fighting with 7i90, not always connecting via epp
[03:04:17] <PCW> the serislhm2 stuff all works but iI have not tried programming one over serial yet
[03:05:14] <PCW> Hmm seems stable to me (we are using EPP for loopback test and initialization)
[03:07:13] <PCW> i will send nmflash and source from home, bbl
[03:07:40] <atom1> PCW, does this look reasonable under the 'Bit on Bitfiles' section: http://tom-itx.dyndns.org:81/~webpage/emc/xilinx/xilinx92_install_index.php
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[03:36:33] <atom1> mmm i think i figured it out
[03:38:05] <atom1> remove the 5i20.ucf from the 'work' library add 5i20ss.ucf to it and save the project as fivei20ss.ise
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[05:45:23] <KGB-linuxcnc> 05zultron-ubc3-dev a65b050 06linuxcnc 04. branch deleted * 14http://git.linuxcnc.org/?p=linuxcnc.git;a=commitdiff;h=a65b050
[05:46:23] <KGB-linuxcnc> 03John Morris 05zultron/ubc3-dev 8e43b12 06linuxcnc New branch with 27 commits pushed, 10110 files changed, 0317983(+), 049374(-) since unified-build-candidate-3/e3de5bb
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[06:58:22] <linuxcnc-build> build #32 of deb-precise-rtpreempt-binary-x86 is complete: Failure [4failed apt-get-update shell_2] Build details are at http://buildbot.linuxcnc.org/buildbot/builders/deb-precise-rtpreempt-binary-x86/builds/32 blamelist: John Morris <john@zultron.com>, Sebastian Kuzminsky <seb@highlab.com>, Michael Haberler <git@mah.priv.at>
[06:59:13] <linuxcnc-build> build #32 of deb-precise-rtpreempt-binary-amd64 is complete: Failure [4failed apt-get-update shell_2] Build details are at http://buildbot.linuxcnc.org/buildbot/builders/deb-precise-rtpreempt-binary-amd64/builds/32 blamelist: John Morris <john@zultron.com>, Sebastian Kuzminsky <seb@highlab.com>, Michael Haberler <git@mah.priv.at>
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[07:31:05] <linuxcnc-build> build #32 of deb-precise-xenomai-binary-amd64 is complete: Failure [4failed apt-get-update shell_3] Build details are at http://buildbot.linuxcnc.org/buildbot/builders/deb-precise-xenomai-binary-amd64/builds/32 blamelist: John Morris <john@zultron.com>, Sebastian Kuzminsky <seb@highlab.com>, Michael Haberler <git@mah.priv.at>
[07:33:50] <linuxcnc-build> build #1330 of deb-lucid-sim-binary-i386 is complete: Failure [4failed shell_3] Build details are at http://buildbot.linuxcnc.org/buildbot/builders/deb-lucid-sim-binary-i386/builds/1330 blamelist: John Morris <john@zultron.com>, Sebastian Kuzminsky <seb@highlab.com>, Michael Haberler <git@mah.priv.at>
[07:35:06] <linuxcnc-build> build #1336 of deb-precise-sim-binary-i386 is complete: Failure [4failed shell_3] Build details are at http://buildbot.linuxcnc.org/buildbot/builders/deb-precise-sim-binary-i386/builds/1336 blamelist: John Morris <john@zultron.com>, Sebastian Kuzminsky <seb@highlab.com>, Michael Haberler <git@mah.priv.at>
[07:35:49] <linuxcnc-build> build #1335 of deb-precise-sim-binary-amd64 is complete: Failure [4failed shell_3] Build details are at http://buildbot.linuxcnc.org/buildbot/builders/deb-precise-sim-binary-amd64/builds/1335 blamelist: John Morris <john@zultron.com>, Sebastian Kuzminsky <seb@highlab.com>, Michael Haberler <git@mah.priv.at>
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[07:37:20] <linuxcnc-build> build #165 of deb-precise-rt-binary-i386 is complete: Failure [4failed shell_3] Build details are at http://buildbot.linuxcnc.org/buildbot/builders/deb-precise-rt-binary-i386/builds/165 blamelist: John Morris <john@zultron.com>, Sebastian Kuzminsky <seb@highlab.com>, Michael Haberler <git@mah.priv.at>
[07:40:40] <zultron> The .deb build failures are from a couple of new files I'm installing, but didn't add to the debian packaging. (It's on my list.)
[07:40:44] <zultron> See http://git.linuxcnc.org/gitweb?p=linuxcnc.git;a=commit;h=c4e05d88c7a2c9e4e7fcc6e70967ed0ff7362662
[07:42:10] <zultron> seb_kuzminsky, this is meant to address the issue we were discussing about not installing system files during RIP 'make setuid'.
[07:48:07] <linuxcnc-build> build #34 of deb-precise-xenomai-binary-x86 is complete: Failure [4failed apt-get-update shell_3] Build details are at http://buildbot.linuxcnc.org/buildbot/builders/deb-precise-xenomai-binary-x86/builds/34 blamelist: John Morris <john@zultron.com>, Sebastian Kuzminsky <seb@highlab.com>, Michael Haberler <git@mah.priv.at>
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[07:55:05] <linuxcnc-build> build #1330 of deb-lucid-sim-binary-amd64 is complete: Failure [4failed shell_3] Build details are at http://buildbot.linuxcnc.org/buildbot/builders/deb-lucid-sim-binary-amd64/builds/1330 blamelist: John Morris <john@zultron.com>, Sebastian Kuzminsky <seb@highlab.com>, Michael Haberler <git@mah.priv.at>
[07:55:58] <linuxcnc-build> build #1331 of deb-lucid-rt-binary-i386 is complete: Failure [4failed shell_3] Build details are at http://buildbot.linuxcnc.org/buildbot/builders/deb-lucid-rt-binary-i386/builds/1331 blamelist: John Morris <john@zultron.com>, Sebastian Kuzminsky <seb@highlab.com>, Michael Haberler <git@mah.priv.at>
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[13:52:53] <memleak> after a lot of kernel hacking i got preempt_rt latency down to 20us on gentoo 64-bit off to bed now, night all
[13:53:37] <memleak> btw sustained for about 30 mins under heavy load
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[14:43:27] <CaptHindsight> I'll keep that Asrock E350M1 up as a test system for RTAI, Xenomai and Preempt_RT with Ubuntu and Debian
[14:45:30] <CaptHindsight> seb_kuzminsky: RTAI <10Us, preempt_rt 20uS (tweaked kernel) so far on the Asrock E350M1 with EFI
[14:51:37] <seb_kuzminsky> CaptHindsight: wow, those rt-preempt numbers are much better than i've heard elsewhere - memleak knows his stuff :-)
[14:51:52] <seb_kuzminsky> zultron: awesome, thanks for working on that issue
[14:57:34] <CaptHindsight> seb_kuzminsky: it will be interesting to see what makes the most impact in the configs for preempt-_rt kernels
[14:59:14] <CaptHindsight> I'm guessing that with RTAI tweaked for the same board it will be ~4-5uS max jitter
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[15:00:48] <CaptHindsight> that is what we have seen on AMD hardware from the past few years
[15:01:39] <CaptHindsight> A, E, FX and Phenom-II
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[17:39:57] <seb_kuzminsky> just added a wheezy distribution to our deb archive, it just has hm2 firmware for now
[17:48:11] <cradek> this is good
[17:48:17] <cradek> I would be happy to stop using ubuntu
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[18:04:37] <seb_kuzminsky> someone reported on the list that the precise rtai kernel runs fine on wheezy
[18:04:52] <seb_kuzminsky> debian ships an rt-preempt kernel for wheezy
[18:05:05] <seb_kuzminsky> and zultron's kernel builder can make xenomai kernels for wheezy
[18:05:14] <seb_kuzminsky> so i think we're in good shape to support wheezy
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[18:16:18] <skunkworks> wow
[18:16:28] <skunkworks> and linuxcnc explodes!
[18:17:16] <seb_kuzminsky> i hope not ;-)
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[18:44:42] <jepler> Where's the kaboom? There was supposed to be an earth-shattering kaboom!
[18:45:55] * skunkworks heard it...
[18:45:56] <ju-emb> is there someone from Mesa Electronics here?
[18:47:46] <PCW> http://www.youtube.com/watch?v=HnyB0a8G71Y
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[20:03:35] <alex_joni> PCW: lol
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[22:54:31] <memleak> i dont have hardware accel 3d working so when doing 3d intensive graphics using llvmpipe, latency shoots up to about 60us with CPU usage around 70%
[22:54:52] <memleak> otherwise usually under 20 or 30us
[22:55:06] <memleak> i have another AMD board that will have 3d hardware accel so that will be a real test
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[22:59:04] <memleak> pastebin.com/frxFZeii kernel size 1.5MB i tried optimizing a few more things but i couldn't get it to boot without forcing rw on the kernel command line
[23:00:19] <memleak> if i wanted to get really fancy i'd use the BFQ I/O scheduler
[23:02:50] <PCW> I wonder if theres any chance the preemt_rt kernel do better at RT Ethernet than what I have now
[23:03:05] <PCW> would do
[23:05:00] <memleak> there is always more room for improvement when it comes to ricing your kernel
[23:05:50] <memleak> compile kernel with -fomit-frame-pointer -Os -funroll-loops -g0 -s and LDFLAGS to --strip-all etc etc :P
[23:06:19] <memleak> -march=native of course
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[23:06:47] <memleak> wow i really sound like a gentoo user now!
[23:07:56] <KGB-linuxcnc> 03Michael Geszkiewicz 05master 7c2d975 06linuxcnc 10src/hal/drivers/mesa-hostmot2/hm2_pci.c hm2: fix typo in fpga chip name preventing bitfile loading for 4i69 boards * 14http://git.linuxcnc.org/?p=linuxcnc.git;a=commitdiff;h=7c2d975
[23:09:31] <PCW> the Ethernet WD bug is most easily seen in 7I80HD (in my experience)
[23:09:33] <PCW> (may have to do with amount of I/O or something)
[23:09:55] <PCW> the Ethernet WD bug is most easily seen in 7I80HD (in my experience)
[23:09:57] <PCW> (may have to do with amount of I/O or something)
[23:10:35] <PCW> eventually I will paste that in the right window
[23:11:29] <memleak> heh!
[23:11:47] <memleak> i thought you were just hitting the arrow up key and pressing enter
[23:12:06] <memleak> they make it too easy to spam in IRC :/
[23:14:40] <skunkworks> I can't wait to test! :)
[23:18:08] <skunkworks> \WD?
[23:20:04] <skunkworks> \\\\\\\pp[p[]\\\=-=[[]'
[23:20:06] <skunkworks> ]
[23:20:33] <skunkworks> ],o99[-[-[pp0;p[[[[[[[[[[[[[''\]]]]\[[]'/
[23:20:39] <skunkworks> '
[23:20:44] <skunkworks> ]\\\\
[23:20:45] <skunkworks> \
[23:20:53] <skunkworks> \
[23:20:54] <skunkworks> ?/
[23:21:00] <skunkworks> ?/
[23:21:08] <skunkworks> [p[p-i\
[23:26:37] <seb_kuzminsky> somebody reboot skunkworks, he crashed again
[23:28:56] <skunkworks> heh - sorry. phone - child - only 2 hands
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[23:56:56] <brianmorel99> Is the ub3 branch from git currently parallel build safe? I saw a bug on SF about the docs, but I didn't know if the rest was safe.