On 5/4/2017 8:16 PM, Gene Heskett wrote: > On Thursday 04 May 2017 16:25:00 Charles Steinkuehler wrote: > >> Out of curiosity, are you building from source or is there a package >> repo for LinuxCNC on the RPi? >> > Charles; > > Its actually running the 2.8pre x86 code, for master-sim, straight out of > the buildbot at <http://buildbot.linuxcnc.org jessie master-sim>.
So does the armhf build run in Raspian or are you using qemu or something? AFAIK, standard Debian armhf code won't run on the RPi because Raspbian uses a different ABI (due to the not-quite full armhf compatible CPU on the original RPi). ...but with Jessie you could maybe run multiarch and get the official armhf libraries running alongside the Raspbian ones? >> I don't want to point him >> this direction if it's not particularly stable, but he's technically >> savvy enough to get over a few rough spots. > > Since I'm walking on new ground with this, Martinjack seems to have > disappeared, its a somewhat lonely trail. I could use the company as I > toddle along. > > Its just as stable as the same code running on an x86 box would be. > > The only warning I'd issue other than keeping motorish noises out of the > system with a single point ground system, is the whole i/o on a pi comes > and goes thru whats basically a usb hub, and keyboard/mouse events seem > to be treated with very poor priority as the uptime accumulates. > > Generally fixed for a while by rebooting. That needs addressed by the pi > builders, probably by adding enough memory that it stays out of the swap > file. It has a gig now, needs another from my diagnosis. I installed Raspbian and see what you mean about the delays. It doesn't look like it's swapping, more like there's something that's single-threaded and ends up blocking most of the system for a while. I haven't dug into it deeply, but it seems like it's probably the uSD driver. Also, uSD access speeds are *SLOW* (at least perceptively, I don't have actual speed tests yet). With a 16G Class-10 uSD it was taking _forever_ to install the build deps on the RPi3, something I've done many times (and which goes much faster) on the BBB using identical uSD cards. -- Charles Steinkuehler char...@steinkuehler.net ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
