Schooner & Robert: I'm running this image: https://elinux.org/Beagleboard:BeagleBoneBlack_Debian#BBW.2FBBB_.28All_Revs.29_Machinekit
Please bear with me here, but if I understand this right the image I downloaded and flashed (and have booted) has the 3.8 kernel. This kernel is not compatible with the wifi chip drivers, I need a 4.1 or later kernel? But what you're saying is that there's an experimental build that has a later (4.1+) kernel but there's a CPU load issue? You say it might not with with "rt requirements" I' assume you mean "real time requirements". So my guess is that I run the risk of locking up my machine if I try that image? That command that you list: CONFIG_PREEMPT_RT_FULL -> CONFIG_PREEMPT_RTB What does it mean? I'm assuming it commands the OS to go from full real time to something that's buffered, or "preemted?" Thanks for all of the help, and I apologize for being a bit of a newbie at this.. On Wednesday, May 16, 2018 at 12:49:50 PM UTC-4, Robert Nelson wrote: > > On Wed, May 16, 2018 at 10:39 AM, Eric <erics...@gmail.com <javascript:>> > wrote: > > I'm guessing that updating the kernel on the Machinekit image isn't as > > trivial as installing an app? (can you tell I'm new to Linux! :) > > > > Where would I find Robert Nelson? > > The image with 3.8.13-xenomai, don't bother trying to update it to > 4.14.x-rt so you can get wifi working.. > > Instead use a later stretch build: > > https://rcn-ee.net/rootfs/bb.org/testing/2018-04-22/stretch-machinekit/ > > Currently there's a high cpu load issue on v4.14.x, we think we > figured it out, but it involves switching from: > > CONFIG_PREEMPT_RT_FULL -> CONFIG_PREEMPT_RTB > > So it might not work with machinekit's rt requirements... > > Regards, > > -- > Robert Nelson > https://rcn-ee.com/ > -- website: http://www.machinekit.io blog: http://blog.machinekit.io github: https://github.com/machinekit --- You received this message because you are subscribed to the Google Groups "Machinekit" group. To unsubscribe from this group and stop receiving emails from it, send an email to machinekit+unsubscr...@googlegroups.com. Visit this group at https://groups.google.com/group/machinekit. For more options, visit https://groups.google.com/d/optout.
