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[00:01:01] <kwallace_T770> Yay, the compression works. I can rough at 50 IPM, and finish at 3 IPM, compress the probe by .015" and break the trigger at speed on retract. (Turning the TP off had no effect, making good g-code and running the right program did)
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[00:07:58] <memfrob> if anyone wants to figure out what the source of the problem is, feel free, I'm calling it quits. github.com/NTULINUX/RTAI/tree/dev I diffed everything time and time again, nothing is standing out.
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[04:38:58] <cmorley> mozmck: gscreen.glade does not need to be loaded in background when using a custom screen. Gscreen has lots of code that make assumptions about what widgets are available and what they are called. In most cases if they are missing warnings will be shown but nothing bad happens. It also depends on what things are initialized at start up. They long term goal is to generalize common routines and move all specific-to-screen function i
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[13:03:03] <skunkworks> zlog,
[13:03:03] <zlog> skunkworks: Log stored at
http://tom-itx.no-ip.biz:81/~tom-itx/irc/logs/%23linuxcnc-devel/2015-03-18.html
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[14:08:31] <seb_kuzminsky> https://lists.ubuntu.com/archives/ubuntu-announce/2015-March/000193.html
[14:25:49] <skunkworks> wow - 5 years
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[14:28:07] <archivist> dont wanna upgrade!
[14:31:43] <pcw_home> probably dont have to unless its connected to the net and theres a hard to work-around exploit
[14:41:47] <jepler> yeah, I would not be afraid to continue using any working linuxcnc installation provided (A) I never, ever browsed the web from it and (B) I had no services exposed directly to the internet (and (C) I didn't care about any features in newer linuxcnc either)
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[14:45:55] <skunkworks> when will linuxcnc stop supporting 10.04?
[14:46:18] <skunkworks> it was reletivley recently that 8.04 was dropped
[14:47:29] <seb_kuzminsky> the only reason i can think of to stop supporting a distro is when we start build-depending or depending on software that's not available for that distro
[14:47:43] <seb_kuzminsky> that's why we dropped hardy, it doesnt have libusb or something that we needed
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[15:48:30] <pcw_home> I think pathpilot is running on 10.04
[15:54:35] <cradek> that's kind of a surprising choice
[15:56:43] <pcw_home> Since I dont have a copy its just a rumor, but maybe they started with it and have not upgraded
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[16:00:04] <skunkworks> that is the consensus
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[16:01:05] <skunkworks> they are getting around the lockieness of the control. (opening up gedit - go to help - opens firefox..)
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[17:49:47] <mozmck> has anyone played with CPU shielding with the preempt-rt kernel?
https://rt.wiki.kernel.org/index.php/CPU_shielding_using_/proc_and_/dev/cpuset
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[20:32:01] <andypugh> I haven’t even managed to make a preempt-rt kernel which boots yet
[20:32:18] <memfrob> O_O
[20:32:33] <memfrob> seriously?? are you making your own kernel configs?
[20:33:31] <andypugh> No, I am copying the existing config, applying the patch and still managing to compile kernels that won’t boot even without actually enablung RT
[20:34:16] <andypugh> Which I think takes special skill
[20:35:01] <memfrob> cp -prv arch/x86/boot/bzImage /boot/vmlinuz-vernum-rt && make modules_install && grub2-mkconfig -o /boot/{grub,grub2}/grub.cfg ?
[20:35:38] <memfrob> the old fashioned way should always work..
[20:35:43] <andypugh> I should perhaps mention I am not working wth x86
[20:35:57] <memfrob> very similar method
[20:36:18] <andypugh> I decided to see what the RPi2 was like with PREMPT-RT
[20:37:13] <andypugh> (And that is the very example they suggest in their tutorial, so my failure makes me a very special case)
http://www.raspberrypi.org/documentation/linux/kernel/patching.md
[20:37:44] <memfrob> change x86 to <arch you're using> then for modules INSTALL_MOD_PATH="mod_output" make modules_install && cp -prv mod_output/* /path/to/cross-compiled-distro/lib/modules/<kernel version you're using>
[20:38:18] <andypugh> The Pi git config has loadable modules disabled
[20:38:30] <memfrob> are you getting kernel panics or a kernel load error when u-boot tries to boot?
[20:38:43] <andypugh> And some “magic” seems to want to always boot from kernel7.img
[20:39:16] <andypugh> I get a rainbow square. Which apparently is a graphics system test, and no further output.
[20:39:17] <memfrob> so its not the kernel itself but the bootloader..
[20:40:15] <memfrob> have you tried using the upstream u-boot bootloader for the pi?
[20:40:30] <memfrob> i dont think theres any "magic" if you compile u-boot and flash yourself
[20:40:32] <andypugh> No
[20:40:55] <memfrob> raspberry pi is in official denx repo
[20:41:41] <andypugh> Everything I have read seems to say that it ought to be as easy as cp /arch/arm/boot/zImage /boot/kernel7.img
[20:42:04] <memfrob> .img to me sounds like an initrd, not *zImage
[20:42:14] <andypugh> I am in the middle of compiling the stock kernel with the stock config to see if I can make even that unbootable.
[20:42:28] <memfrob> enable earlyprintk and see whats going on w/ UART debug
[20:42:41] <memfrob> thats how i've been able to build kernels for any arm board i've worked with
[20:43:02] <andypugh> I am a bit short of uarts
[20:43:21] <memfrob> FTDI adapters you mean?
[20:43:37] <andypugh> Ones not glued to an Arduino anyway
[20:43:54] <memfrob> what does ardunio have to do with compiling a kernel for a pi?
[20:44:10] <andypugh> It seems that there ought to be a standalone USB-powered pure LCD serial terminal out there, but I have never found one.
[20:44:23] <memfrob> you look at the serial output of the pi, not arduino
[20:45:00] <andypugh> Yes, I am just saying that I have dozens of ftdi adaptors, but they are all on Arduino boards and none are loose.
[20:45:20] <memfrob> oh i see
[20:45:27] <memfrob> sorry i misunderstood
[20:45:39] <memfrob> earlyprintk=vga?
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[20:46:03] <andypugh> I don’t think I am even getting that far
[20:46:54] <memfrob> try vanilla upstream uboot and see what happens?
[20:47:37] <andypugh> I don’t think that a vanilla kernel will run on the Pi SoC
[20:47:51] <memfrob> vanilla uboot, not kernel
[20:48:04] <andypugh> In that case you are using a language I don’t speak
[20:48:11] <memfrob> uboot is the bootloader
[20:48:40] <memfrob> the firmware that does the hw init and boot params and such
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[20:48:57] <memfrob> power on -> uboot -> kernel -> distro
[20:49:03] <andypugh> I might try that later. Changing the bootloader seems to be gettting _futher_ away from the problem rather than closer though.
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[20:50:11] <memfrob> i always change the bootloader first and work my way in closer to kernel and distro building
[20:50:51] <memfrob> i dont trust the factory boot loaders to work with custom kernels and suc
[20:51:04] <memfrob> usually stuff is hardcoded and whatnot
[20:51:50] <memfrob> (i.e. only loads kernels from kernel7.img in a given path)
[20:53:22] <memfrob> bbl
[20:55:56] <andypugh> well, I just managed to fail with a complete stock kernel, but I have proved that kernel= in /boot/config.txt works :-)
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[22:39:02] <memfrob> sounds like a uboot problem
[22:39:46] <cradek> I think the pi2 does not use uboot
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[22:43:21] <memfrob> pi2 is in uboot
[22:43:33] <memfrob> whether it comes with it is another story
[22:43:39] <CaptHindsight> andypugh: just FYI
http://openlunchbox.com/smf/index.php?topic=48.0 feedback, opinions, criticisms, funny looks appreciated
[22:44:45] <memfrob> uboot is my fav and i highly recommend it in all cases where it supports the hw :D
[22:45:49] <cradek> apparently the *GPU* loads the kernel directly somehow
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[22:52:44] <andypugh> cradek: That would fit with me getting a graphics test and nothing after that.
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[22:53:55] <andypugh> So, perhaps my problem is actually related to the graphiocs firmware…
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[22:54:44] <cradek> seems like the web is full of people not being able to boot it, and wishing it would use uboot
[22:58:21] <andypugh> Booting it is no problem. Booting it with _my_ kernel image eludes me.
[22:59:08] <memfrob> uboot-tree/board/raspberrypi/rpi_2 it can use uboot it just doesnt come with it
[22:59:31] <memfrob> crosstool-ng, some dd commands and voila
[22:59:40] <andypugh> I seem to recall spending weeks messign abut with uboot on the Udoo too…
[23:00:23] <memfrob> once you get used to it reflashing boards with it becomes a breeze
[23:01:03] <andypugh> I don’t want to get used to it. I wanted to tweak the kernel once last sunday and then move on to interesting projects.
[23:01:14] <memfrob> the tricky part is just knowing the right memory addresses and offets for it
[23:01:47] <andypugh> I can’t manage the easy parts.
[23:02:38] <memfrob> have you looked at elinux.org/RPi_U-Boot ?
[23:02:56] <andypugh> No
[23:03:12] <andypugh> I am still in the middle of the kernel compile I started earlier this evening.
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[23:05:15] <andypugh> I do at least know how to recover a bootable Pi when my kernels fail at the moment. There is no suggestion that the Pi isn’t trying to boot from my kernels. I don’t, thereofore, see why the answer is likely to be a change in boot loader.
[23:06:11] <memfrob> follow instructions here? elinux.org/Raspberry_Pi_Kernel_Compilation
[23:07:15] <memfrob> it even says you should update the firmware to make sure your new kernel works.
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[23:07:35] <memfrob> i dont think its possible to just swap kernels without some hacking at the firmware
[23:07:52] <andypugh> I am puzzled as to why those instructions are 10x as comple as the ones on the RPi site.
[23:08:36] <andypugh> http://www.raspberrypi.org/documentation/linux/kernel/building.md
[23:08:39] <memfrob> apparently the "next" branch for the firmware.git repo is required to use kernels newer than 3.6
[23:09:06] <andypugh> But the eLinux instructions appear to be for the arm6 boards. as it is kernel7.img for the new Pi
[23:09:19] <memfrob> "next - This is a development branch which provides a newer GPU firmware to work with the updated drivers in the 3.6 kernel"
[23:09:46] <andypugh> My Pi is already booting happily from the stock 3.18.7 kernel
[23:09:54] <cradek> the rpi2 is a GPU with a computer accidentally stuck on the side
[23:10:08] <mozmck> yes, pi2 != pi
[23:11:13] <memfrob> I'm just highly convinced your problems will not magically go away making new kernels and recompiling different kernels over and over again, expecting a different result.
[23:11:18] <andypugh> cradek: This is why it makes a so much better PC than the Beagle, which is so hopeless that Machinkit seem to have given up on using it for the GUI and almost mandate a separate PC for the GUI stuff. Which rather leaves me wondering why you need to have the Beagle at all.
[23:11:36] <memfrob> I suggest hacking at the bootloader a bit, that is the best advice I can give.
[23:12:01] <cradek> andypugh: some people also prefer to buy a windows license or an ipad and incorporate those somehow
[23:12:07] <memfrob> it's the only way i think you're ever going to get at least a different result than you are now.
[23:12:18] <cradek> andypugh: I don't try to understand it all anymore
[23:12:22] <andypugh> And I am saying that I see no evidence that there is anything wrong with the bootloader, as it boots and loads the standard kernel every time.
[23:13:00] <memfrob> right, because there's magic in the kernel or elsewhere like i said, something somewhere else hardcoded that prevents your custom one from loading.
[23:13:29] <andypugh> If I install a new bootloader I almost guarantee that my imcompetence will see me unable to even boot the original kernel any more.
[23:13:39] <memfrob> if you cant regenerate the stock one, then some "magic" such as you said is happening, and i believe that is in the bootloader
[23:14:12] <memfrob> theres not much else magic can happen
[23:14:30] <andypugh> I am currently compiling the actual stock kernel from the original repo. If that doesn’t work then I know that there is witchcraft at play.
[23:14:45] <memfrob> only other possibility is theres something wrong with your compiler
[23:15:01] <memfrob> and its flipping bits around on your custom kernel making it unbootable
[23:15:34] <memfrob> in which case ive seen boards, namely by ARCHOS, which i could not reproduce stock kernels with without their specific GCC toolset
[23:16:09] <andypugh> I am not saying that you are wrong about the bootloader. I am saying that if that is the case then I have totally lost interest and the board is going back on the shelf.
[23:16:11] <memfrob> crosstool-ng, codesourcery, etc. all would fail. so its either bootloader or compiler
[23:16:55] <memfrob> i always figured i'd run into issues with a pi hence why i never even bought one in the first place
[23:17:59] <andypugh> They make a great wireless pring server if you install Avahi and CUPS
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[23:39:21] <mozmck> seb_kuzminsky: what is the plan on the new configure stuff?
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