Mesa hm2/hm2_7i96s.0: error finishing read

I'm not the pushy type LOL

JT

JT wrote:

I'm not the pushy type LOL

JT

Maybe Andy will see this. Sometimes i've observed he makes things happen....
Up unitl now I was quite happy to go with Bookworm but when we see that Bullseye being quoted as the only one that has a kernel that works, really Bullseye needs to be supported.

What small hardware will work? Thats the conundrum.
The Odroid H3 has been reported as working if the Realtek driver is built from the realtek web site.
I've also wondered about the Odroid N2 which is ARCH instead of AMD64 and there is a Debian Bullseye build for it. MAybe the different platform would fix things.

Since the debian rt kernels seem to be broken, it may require a home built
kernel for distribution. I have never seen the extremely high error rates that
people in this thread have shown
(These seem exclusively to happen with pre-built debian kernels)

I wish I knew what the difference between 4.19 and 5.X kernels was.
On my 8300, the 4.19.255-rt113 kernel runs a 4 KHZ servo thread with 0 timeouts
with youtube videos running, but with a 5.18 kernel it will only run a 1 KHz
servo thread and will get a few timeouts a day (but no errors)

I tried to compile the 5.2 kernel that arvidb built to do some crude bisection
tests, but it cannot be compiled on a Mint 20 system due to some makefile bugs
with GCC 9.x. I will try some others.

Just tested the new 6.0.2 RT kernel on 2 PC's, still the same issue just worst.
Latency histogram is OK on both with plenty of load.
Pretty sure one uses an Intel NIC, the other i have to check.
This is not related just to LinuxCNC, internet is really slow on both, one through wireless the other through LAN.
Very often it just sits on connecting to site....

Did you build the 6.x kernel?

Here's the latest RT kernel on my Elite 800 G1 (which is not great on any kernel)

This is after about  1.5 hours with youtube videos playing:

EDIT: Now ~8 hours on the Elite 800 G1 and no worse on the tmax's,
so 6.1 seems about as good as 4.19 on that hardware
I also tried 6.1 on my 8300 and its almost as good as 4.19 at 4KHz
(and much better than the few 5.x kernels I have tried)

 

PCW wrote:

Did you build the 6,x kernel?

No, i used the one found on the Debian repos.
I tend to stick to ready made stuff to make it easier for new users to use LinuxCNC.