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[06:27:54] <KGB-linuxcnc> 03kinsamanka 05unified-build-candidate-3 8a239f9 06linuxcnc 10src/ 10(5 files in 2 dirs) * RPi SPI Driver initial commit
[06:27:54] <KGB-linuxcnc> 03mail17 05unified-build-candidate-3 a324838 06linuxcnc * Merge pull request #2 from kinsamanka/hal_spi
[06:27:58] <KGB-linuxcnc> 03git 05unified-build-candidate-3 eb4f416 06linuxcnc 10src/ 10rtapi/rtapi.h 10rtapi/rtapi_common.c * rtapi: add rtapi_shmem_exists() acessor
[06:28:04] <KGB-linuxcnc> 03git 05unified-build-candidate-3 4894a2a 06linuxcnc 10src/rtapi/shmdrv/shmdrvapi.c * shmdrv API: correct sign of return value on mmap() failure
[06:28:12] <KGB-linuxcnc> 03git 05unified-build-candidate-3 9df4259 06linuxcnc 10src/rtapi/shmdrv/shmdrv.c * shmdrv: IOC_SHM_ATTACH return full status of existing segment
[06:28:18] <KGB-linuxcnc> 03git 05unified-build-candidate-3 ad21610 06linuxcnc 10src/rtapi/rtapi_shmem.c * rtapi_shmem_getptr(): fail with -ENOENT if shm segment not mapped
[06:28:26] <KGB-linuxcnc> 03git 05unified-build-candidate-3 1f3be77 06linuxcnc 10src/rtapi/rtapi_shmem.c * rtapi_shmem_new_inst: return -EEXIST on mapping a shm segment again
[06:28:33] <KGB-linuxcnc> 03git 05unified-build-candidate-3 96ac7fd 06linuxcnc 10src/ 10rtapi/rtapi_kdetect.c 10rtapi/rtapi_kdetect.h * kdetect: sync with syndrome used in rtapi_compat.c
[06:28:40] <KGB-linuxcnc> 03charles 05unified-build-candidate-3 8e0a1ad 06linuxcnc 10configs/ 10ARM/BeagleBone/BeBoPr-Bridge/BeBoPr-Bridge.hal 10ARM/BeagleBone/BeBoPr/BeBoPr.hal * configs/BeagleBone : Fix path to ReadTemp.py
[06:28:52] <KGB-linuxcnc> 03charles 05unified-build-candidate-3 0c29b4c 06linuxcnc 10configs/ 10(6 files in 4 dirs) * configs/BeagleBone : Update path to pru_generic.bin
[06:28:59] <KGB-linuxcnc> 03charles 05unified-build-candidate-3 58b054e 06linuxcnc 10scripts/latency-test
[06:29:02] <KGB-linuxcnc> scripts/latency-test : Remove base thread by default
[06:29:05] <KGB-linuxcnc> The defualt 25 uS base thread will crash low performance systems
[06:29:06] <KGB-linuxcnc> that have greater than 25 uS interrupt latency.
[06:29:09] <KGB-linuxcnc> Signed-off-by: Charles Steinkuehler <charles@steinkuehler.net>
[06:29:26] <KGB-linuxcnc> 03charles 05unified-build-candidate-3 7b1ee82 06linuxcnc 10configs/ 10ARM/BeagleBone/BeBoPr-Bridge/BeBoPr-Bridge.hal 10ARM/BeagleBone/BeBoPr-Bridge/ReadTemp.py 10ARM/BeagleBone/BeBoPr/ReadTemp.py * configs/BeagleBone : ReadTemp.py
[06:29:33] <KGB-linuxcnc> 03john 05unified-build-candidate-3 80abd59 06linuxcnc 10docs/src/common/UnifiedBuild.txt * UnifiedBuild.txt: add notes about UB build and run-time system changes
[06:29:41] <KGB-linuxcnc> 03git 05unified-build-candidate-3 844e7c1 06linuxcnc 10debian/control.in 10docs/man/man9/motion.9 10src/hal/drivers/mesa-hostmot2/hostmot2.h 10src/hal/drivers/mesa-hostmot2/resolver.c * Merge remote-tracking branch 'origin/master' into unified-build-candidate-3
[06:29:51] <KGB-linuxcnc> 03git 05unified-build-candidate-3 391385c 06linuxcnc
[06:29:52] <KGB-linuxcnc> Merge remote-tracking branch 'github/unified-build-candidate-2' into ub-doc-update
[06:30:02] <KGB-linuxcnc> 03git 05unified-build-candidate-3 166412a 06linuxcnc 10docs/src/common/UnifiedBuild.txt * docs/UnifiedBuild: integrate comments from Kent
[06:30:09] <KGB-linuxcnc> 03git 05unified-build-candidate-3 b80a373 06linuxcnc 10docs/ 10src/Master_Integrator.txt 10src/Submakefile 10src/index.tmpl * docs/UnifiedBuild: integrate into docs build
[06:30:15] <KGB-linuxcnc> 03john 05unified-build-candidate-3 ff159d8 06linuxcnc 10src/configure.in * configure.in: Don't do MULTILIB_HACK on non-Precise hosts
[06:30:22] <KGB-linuxcnc> 03john 05unified-build-candidate-3 aa04069 06linuxcnc 10src/rtapi/Submakefile * rtapi/Submakefile: fix race condition creating links for parallel build
[06:30:30] <KGB-linuxcnc> 03john 05unified-build-candidate-3 d3b7969 06linuxcnc 10src/ 10Makefile 10Makefile.inc.in * Makefile, Makefile.inc: fix EMC2_RTLIB_DIR installation location
[06:30:36] <KGB-linuxcnc> 03git 05unified-build-candidate-3 a5bce14 06linuxcnc 10docs/src/common/UnifiedBuild.txt * docs/UnifiedBuild: touchups
[06:30:42] <KGB-linuxcnc> 03TODO: deletor 05unified-build-candidate-1 dd3f7a5 06linuxcnc 04. * branch deleted
[06:30:48] <KGB-linuxcnc> 03TODO: deletor 05unified-build-candidate-2 ec43a02 06linuxcnc 04. * branch deleted
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[06:40:48] <linuxcnc-build> build #1300 of hardy-amd64-sim is complete: Failure [4failed install-missing-build-dependencies] Build details are at
http://buildbot.linuxcnc.org/buildbot/builders/hardy-amd64-sim/builds/1300 blamelist: Michael Haberler <mail17@mah.priv.at>, Charles Steinkuehler <charles@steinkuehler.net>, Michael Haberler <git@mah.priv.at>, GP Orcullo
[06:40:48] <linuxcnc-build> <kinsamanka@gmail.com>, John Morris <john@zultron.com>
[06:41:05] <linuxcnc-build> build #1296 of hardy-i386-realtime-rip is complete: Failure [4failed install-missing-build-dependencies] Build details are at
http://buildbot.linuxcnc.org/buildbot/builders/hardy-i386-realtime-rip/builds/1296 blamelist: Michael Haberler <mail17@mah.priv.at>, Charles Steinkuehler <charles@steinkuehler.net>, Michael Haberler <git@mah.priv.at>, GP
[06:41:05] <linuxcnc-build> Orcullo <kinsamanka@gmail.com>, John Morris <john@zultron.com>
[06:41:28] <linuxcnc-build> build #1298 of hardy-i386-sim is complete: Failure [4failed install-missing-build-dependencies] Build details are at
http://buildbot.linuxcnc.org/buildbot/builders/hardy-i386-sim/builds/1298 blamelist: Michael Haberler <mail17@mah.priv.at>, Charles Steinkuehler <charles@steinkuehler.net>, Michael Haberler <git@mah.priv.at>, GP Orcullo
[06:41:28] <linuxcnc-build> <kinsamanka@gmail.com>, John Morris <john@zultron.com>
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[06:49:12] <linuxcnc-build> build #1296 of lucid-i386-sim is complete: Failure [4failed compile] Build details are at
http://buildbot.linuxcnc.org/buildbot/builders/lucid-i386-sim/builds/1296 blamelist: Michael Haberler <mail17@mah.priv.at>, Charles Steinkuehler <charles@steinkuehler.net>, Michael Haberler <git@mah.priv.at>, GP Orcullo <kinsamanka@gmail.com>, John Morris
[06:49:12] <linuxcnc-build> <john@zultron.com>
[06:49:22] <linuxcnc-build> build #1299 of lucid-amd64-sim is complete: Failure [4failed compile] Build details are at
http://buildbot.linuxcnc.org/buildbot/builders/lucid-amd64-sim/builds/1299 blamelist: Michael Haberler <mail17@mah.priv.at>, Charles Steinkuehler <charles@steinkuehler.net>, Michael Haberler <git@mah.priv.at>, GP Orcullo <kinsamanka@gmail.com>, John Morris
[06:49:22] <linuxcnc-build> <john@zultron.com>
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[06:52:03] <linuxcnc-build> build #1299 of lucid-i386-realtime-rip is complete: Failure [4failed compile] Build details are at
http://buildbot.linuxcnc.org/buildbot/builders/lucid-i386-realtime-rip/builds/1299 blamelist: Michael Haberler <mail17@mah.priv.at>, Charles Steinkuehler <charles@steinkuehler.net>, Michael Haberler <git@mah.priv.at>, GP Orcullo <kinsamanka@gmail.com>,
[06:52:03] <linuxcnc-build> John Morris <john@zultron.com>
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[07:16:40] <linuxcnc-build> build #1294 of checkin is complete: Failure [4failed] Build details are at
http://buildbot.linuxcnc.org/buildbot/builders/checkin/builds/1294 blamelist: Michael Haberler <mail17@mah.priv.at>, Charles Steinkuehler <charles@steinkuehler.net>, Michael Haberler <git@mah.priv.at>, GP Orcullo <kinsamanka@gmail.com>, John Morris <john@zultron.com>
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[12:07:16] <jepler> hm well the latency-test change that charles made wasn't quite what I suggested on the list :-/
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[12:51:47] <alex_joni> 'lo
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[12:53:42] <mhaberler> what you'd suggest?
[12:54:57] <alex_joni> hey mhaberler
[12:55:09] <mhaberler> servus!
[12:55:23] <alex_joni> so.. I got a BBB
[12:55:40] <alex_joni> what can I do with it (regarding lcnc) atm?
[12:55:42] <mhaberler> and you have read Charles' blog..
[12:55:52] <alex_joni> I'm aware of machinekit or what it's called
[12:55:54] <alex_joni> yeah
[12:56:00] <alex_joni> was wondering shield-wise
[12:56:06] <mhaberler> oh
[12:56:16] <alex_joni> saw references to BeBoPr - but no idea where to get one from
[12:56:27] <mhaberler> talk to Bas Laarhoven
[12:56:29] <alex_joni> and was wondering if there isn't a simpler shield that emulates a parport
[12:56:30] <mhaberler> he makes them
[12:56:49] <mhaberler> no, but maybe Steve Stallings is on that case, or Jon Elson
[12:57:03] <mhaberler> that be pretty easy, just get the breakout cape
[12:58:08] <mhaberler> and wire a db25; there are no buffer drivers between pins and cpu though, so caveat
[12:58:46] <alex_joni> hummm.. might be place for a new shield then :)
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[13:07:27] <archivist> alex_joni, two versions of it while you are designing it, one where the optos are built into the drives and one with the optos on board
[13:08:15] <mhaberler> right, that be a useful cape
[13:09:43] <cradek> on low-power parport connected hardware I wonder if optos really help with real problems, or just cause pain but are there because people expect them
[13:10:44] <archivist> my drivers have built in opto I need a buffer from the parport to drive the optos
[13:11:37] <cradek> yeah that's the typical problem
[13:11:52] <cradek> also, optos can be slow
[13:21:11] <alex_joni> I agree buffers would be more useful
[13:21:25] <alex_joni> most likely socketed buffers acting as fuses :D
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[13:21:53] <cradek> well I'm asking, not suggesting
[13:22:04] <skunkworks> heh - all my printer port interfaces that I have put together all have buffers.. (no optos)
[13:22:05] <cradek> I think people expect "quality" parport-connected stuff to have optos
[13:22:19] <skunkworks> buffers/inverters.
[13:22:27] <cradek> I wonder if it's driven by that or by real engineering
[13:22:29] <skunkworks> I have yet to take out a printer port.. have tried though
[13:22:50] <archivist> I use an open collector buffer either 74xx or a ULN200x
[13:23:46] <skunkworks> I don't thinnk the emco lathe has optos...
[13:25:01] <archivist> my starturn...does not either, uses the ULN for level shifting to the 12v levels of the starturn drivers
[13:25:56] <archivist> with the uln one could use it safely as a relay driver too if space for diodes added
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[13:35:25] <skunkworks> I think optos mask poor grounding
[13:36:59] <archivist> dunno, there are some seriously spiky noise producers, separate grounds and optos can help
[13:37:33] <skunkworks> sure
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[13:52:13] <pcw_home> Decent step drives are almost always isolated does seem a bit
[13:52:15] <pcw_home> silly to isolate the other end (and use OPTOs as line drivers, a job they are ill suited to)
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[14:02:13] <jepler> mhaberler: I thought a configure-time switch to make latency-test have its current behavior on desktop platforms and some other behavior (maybe no-base-period) on everything else
[14:02:40] <jepler> eh it doesn't matter, except that probably stepconf should invoke latency-test with a base period
[14:03:03] <mhaberler> that thing is tcl, right?
[14:03:13] <jepler> it's a shell script that creates a tcl script or something awful like that
[14:03:24] <mhaberler> gawd
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[14:18:57] <pcw_home> Is there any advantage of high base rates for gathering peak latency data?
[14:18:58] <pcw_home> (other than being faster at acquiring that data)
[14:20:02] <jepler> pcw_home: I think if you're going to be running two threads you should take your measurements under a like situation
[14:22:03] <pcw_home> Yeah, though in practice, unless you actually do the I/O you really have no reliable figure of what the actual latency will be
[14:23:48] <pcw_home> PC/SOC I/O can be blocked by bus masters/DMA etc
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[14:28:16] <jepler> that is quite true
[14:30:47] <pcw_home> That was my disappointing finding on the Atoms (great latency on the test, poor latency if measured in physical I/o pin jitter)
[14:34:14] <pcw_home> On the other hand, for servo thread only systems especially if data sampling/output can be run by hardware timer,
[14:34:16] <pcw_home> jitter is relatively unimportant as long as you can get what you need done in the time available after a worst case
[14:34:17] <pcw_home> latency spike
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[14:54:42] <kwallace> What might a real latency test look like? I suspect and external oscillator to trigger an input then an oscilloscope to see how long it takes to get a response?
[14:56:09] <skunkworks> couldn't you do that on the printer port (out to in?) for testing printer port latency...
[15:01:58] <pcw_home> Thats what I did (toggle an output bit)
[15:05:25] <skunkworks> The absolute maximum latency on this laptop after running for a few days was 25us. not bad for a laptop
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[15:08:07] <kwallace> Should the LinuxCNC PC be both the timing reference and the UUT?
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[15:37:40] <jepler> ideally it wouldn't be, but without depending on specific hardware being present it's hard to do otherwise
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[15:41:14] <kwallace> It is the specific hardware I am curious about.
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[15:43:51] <jepler> well if you want to assume mesa, you could set up stepgen to essentially be a timestamp counter
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[16:12:22] <awallin> does an ubuntu "lowlatency" kernel count as a preempt-rt kernel?
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[16:37:49] <awallin> well that was fun. the -lowlatency kernel completely messed up my graphics settings...
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[16:44:35] <CaptHindsight> https://help.ubuntu.com/community/UbuntuStudio/RealTimeKernel
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[16:45:40] <CaptHindsight> looks like -lowlatency kernel just has some config tweaks
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[16:46:08] <awallin> hm yeah, but it did not like my 30" 2560x1600 screen+NVIDIA at all
[16:46:49] <CaptHindsight> they probably broke kernel mode settings
[16:48:20] <CaptHindsight> awallin: did you ever more from national instruments about where they post the source for the new ZYNQ boards?
[16:48:37] <awallin> and when I booted back to my -generic kernel I had no launcher&compiz running
[16:49:07] <awallin> CaptHindsight: I just noticed they started marketing cRIO with somve variant of preempt-rt, don't know more than that
[16:49:16] <CaptHindsight> I'm just assuming you're the same awallin that I saw on their forums
[16:49:49] <awallin> maybe :)
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[16:52:40] <CaptHindsight> they look interesting but I don't expect them to be low cost
[16:53:52] <awallin> ARM+FPGA combo is doable open-source also given enough time & effort...
[16:54:33] <awallin> I've been using these at work
http://www.ohwr.org/projects/spec/wiki they are open hardware, also sort of interesting..
[16:54:36] <CaptHindsight> plus the xilinx tools for ZYNQ pretty much encourage the use of Linux
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[16:56:30] <awallin> any idea what bus/protocol they use between the ARM and the FPGA on NI hardware?
[16:56:47] <CaptHindsight> the ARM cores are in the FPGA
[16:56:54] <CaptHindsight> dual arm9
[16:57:03] <awallin> really?
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[16:57:20] <CaptHindsight> http://www.xilinx.com/content/xilinx/en/products/silicon-devices/soc/zynq-7000.html
[16:57:36] <awallin> oh on zynq, ok
[16:57:56] <awallin> but older/existing cRIO etc hardware does have ARM+FPGA chips?
[16:58:18] <CaptHindsight> yes, for that new cRIO, not sure on the older stuff
[16:58:56] <awallin> we should ask olimex to make an olinuxino with zynq
[16:59:30] <CaptHindsight> probably outside of his price target
[16:59:32] <pcw_home> Look at the parallela for a inexpensive ZYNQ platform
[17:00:12] <pcw_home> with 16X 1 GFLOP PRUs!
[17:00:28] <awallin> eh, ev-kit is 1300euros...
[17:01:02] <CaptHindsight> I might make some ZYNQ boards later this year, maybe I'll float some open kitchen sink design around China
[17:01:45] <CaptHindsight> $99 Parallella board
http://www.parallella.org/
[17:02:14] <awallin> so the idea is to leave part of the FPGA free for user applications? and the rest is used for the ARM core?
[17:03:05] <CaptHindsight> Vivado and the SDK make it really easy to design custom peripherals and write the drivers and bootloader
[17:04:29] <CaptHindsight> yeah, they leave free gates for you to add your own IP, say hardware for video edge detect or similar
[17:05:06] <awallin> if they can sell it for $99 the zynq chip can't be that expensive?
[17:05:22] <pcw_home> I think they got a specail deal
[17:05:35] <pcw_home> the parst cost is more than that
[17:05:46] <pcw_home> parts
[17:05:53] <CaptHindsight> the only negative thing with the tools IMHO so far is the reliance on code sorcery vs crosstool
[17:07:06] <CaptHindsight> pcw_home: I read on one of the forums about the prices starting ~$40 ea
[17:07:16] <pcw_home> Kind of like the core generator, I purged all core generator created objects early on..
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[17:07:38] <pcw_home> Yes they are getting more reasonable
[17:08:25] <awallin> anyway a xilinx fpga connected somehow to one of these cheap ARM boards (beagle, olimex, etc) would be interesting
[17:09:04] <CaptHindsight> cubieboard
[17:09:13] <mhaberler> awallin: ah, here you are. please pastebin src/config.log and the output of make (eg make |& tee /tmp/log)
[17:09:19] <pcw_home> I have a Cubieboard one now
[17:10:39] <CaptHindsight> http://cubieboard.org/2013/06/19/cubieboard2-is-here/ with the Allwinner A20 dual A7 core SOC
[17:10:48] <mhaberler> awallin: what ubuntu distro?
[17:10:58] <pcw_home> Which reminds me I need to order some of the those
[17:11:06] <awallin> mhaberler: I am on ubuntu 13.04
[17:11:16] <awallin> mhaberler: config.log
http://pastebin.ca/2443024
[17:11:44] <mhaberler> thanks
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[17:12:23] <CaptHindsight> I need more data acquisition (comedi) for Linuxcnc
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[17:15:27] <CaptHindsight> Zynq XC7Z010 100K pcs is <$20
[17:16:30] <awallin> mhaberler: output of make
http://pastebin.ca/2443026
[17:16:40] <mhaberler> great, thanks
[17:17:11] <awallin> although a lot of the warnings go to the terminal with "make > make.log"
[17:17:19] <awallin> I guess stderr can be redirected also
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[17:17:44] <mhaberler> that looks fine
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[17:18:59] <mhaberler> very strange; sure you did the '. scripts/rip-environment' ? could you pastebin the output of 'find rtlib libexec' please?
[17:19:07] <awallin> maybe make &> mylog.log
[17:19:20] <mhaberler> I use this: make |& tee /tmp/log
[17:19:42] <mhaberler> no, the make runs fine
[17:20:45] <awallin> hmh, now it works.. very strange
[17:21:21] <awallin> find doesn't find rtlib or libexec
[17:21:28] <mhaberler> cd linuxcnc
[17:21:31] <mhaberler> ls
[17:21:42] <mhaberler> this should list among others rtlib and libexec
[17:22:03] <mhaberler> looks like an environment funny to me
[17:22:16] <awallin> rtlib/posix has a lot of .so files
[17:22:21] <mhaberler> right
[17:22:37] <mhaberler> libexec must have rtapi_app-posix or so
[17:22:45] <awallin> yes
[17:22:52] <mhaberler> that build is fine
[17:22:56] <awallin> and I also have rtapi_app_rt-preempt in red
[17:23:11] <mhaberler> right, you get that for free ;) bonus thread model
[17:24:06] <mhaberler> if you're curious you could try with this kernel:
http://static.mah.priv.at/public/rt-preempt/
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[17:25:31] <awallin> I get the error I reported with "make -j4" (I am impatient, no reason why compiles shouldn't use all cores) "make" by itself seems to produce an ok build
[17:25:42] <mhaberler> aha. parallel make
[17:25:51] <mhaberler> seems not all deps are worked out
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[17:26:22] <mhaberler> thanks - pretty sure this was it; this needs work
[17:27:13] <CaptHindsight> pcw_home: Parallella-16 with GPIO and Zynq7020 is $199
[17:27:25] <CaptHindsight> http://shop.adapteva.com/collections/parallella/products/parallella-16
[17:27:45] <awallin> mhaberler: some linker problems at the end here
http://pastebin.ca/2443030 (output of make -j4)
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[17:29:04] <mhaberler> yes, thats a consequence of the -j4; there seem to be missing deps for parallel make to work
[17:29:05] <pcw_home> 7020 is way too big for anything we do
[17:29:38] <mhaberler> please dont use the -j flag until further notice
[17:29:51] <awallin> :P
[17:30:46] <awallin> mhaberler: for testing preempt-rt, do I need all those debs: firmware-image, headers, image, libc?
[17:31:42] <mhaberler> you likely need image libc; suggest firmware
[17:31:55] <mhaberler> do you have an r8168 net i/f?
[17:32:35] <mhaberler> if so, fetch the
http://static.mah.priv.at/public/rt-preempt/r8168-8.035.00-3.10.4.tgz file ***before you reboot*** (and not into /tmp ;)
[17:33:03] <mhaberler> see also
http://static.mah.priv.at/public/rt-preempt/README
[17:33:09] <mhaberler> bb in an hour
[17:33:10] <awallin> rtl8168e/8111e says dmesg | grep eth0
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[17:37:32] <mhaberler> in that case the preempt kernel likely comes up with a broken network i/f ; blacklist the r8169 driver (which very likely is loaded, see lsmod), and build the one from the r8168 tar archive
[17:38:27] <mhaberler> that should get the i/f working. unfortunately this is an issue unresolved for the better part of a decade now, and affects all torvalds kernels and derived up to at least 3.10
[17:39:32] <mhaberler> there are lots of r8168 driver archives out there; the one I referred to does work with the 3.10-4 kernel
[17:39:52] <mhaberler> bbl
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[23:56:52] <KimK> memleak, CaptHindsight: Any news on the status of RTAI kernels for 12.04? Not rushing you, just looking ahead.
[23:58:24] <CaptHindsight> KimK: what kernel version is that again?
[23:59:58] <KimK> (Well, OK, maybe rushing you a little. I just noticed that the FreeCAD daily PPA guys have stopped supporting 10.04 a few weeks ago. I *thought* it had been a while since an update, lol.)