Re: [ANNOUNCE] v5.16-rc6-rt12

[gene heskett <gheskett@shentel.net>]

On Friday, December 24, 2021 9:16:57 PM EST you wrote:
> On Thu, 2021-12-23 at 17:13 +0100, Sebastian Andrzej Siewior wrote:
> > Dear RT folks!
> > 
> > I'm pleased to announce the v5.16-rc6-rt12 patch set.
> 
> > Changes since v5.16-rc6-rt11:
> ...
> 
> >   - The "Memory controller" (CONFIG_MEMCG) can be enabled again.
> 
> FWIW, LTP testcases pass on rpi4 and x86_64 boxen with no gripeage.
> Full LTP with maximally bloated config was as uninteresting as one can
> hope for.
> .

Unforch and after many try's, I can't get it to reboot when installed, 
sorta, on an rpi4b.

I say sorta, because no matter how many times I rebuild it, the build 
does not generate an arch/arm/boot/dts/overlays directory.  The build 
itself is error free.

The raspi kernel build instructions from their somewhat dated wiki also 
say to use the bcm2711_defconfig, but it does not now exist in a git 
clone. And a hwinfo of the rpi4b says I should use the bcm2835_defconfig 
for a starter .config.

Is there any hope of making this work?

I have been using a 4.19 rt-preempt I built on a rpi4 running buster, 
driving 3/4 ton of 75 yo Sheldon lathe, and now I'm trying to help a guy 
at the west end of the country rig an rpi4b to run a good sized cinci 
mill. The pi4 has more than enough power to run LinuxCNC.

Thanks for any guidance.

Cheers, Gene Heskett.
-- 
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