error finishing read

I have just tested the 6.3-rc5-rt7 kernel and it has improved Ethernet latency
on at least 2 of my test systems: ~4 days LinuxCNC running with YouTube videos
and no more that ~300 usec read tmax and 0 dropped packets at a 1KHz servo thread.

At least on my test machines, it seems as good as 4.19

Peter. How did you acquire the 6.3 source? Did you download the tarball and  make the ./kernel folder after patching it?

I just built it from source with a script:
 

(might need to change xconfig to menuconfig if the platform has qt issues)

PCW wrote:

I just built it from source with a script:
 

Thanks Peter,
I'll try and update my 6.1 debs to 6.3 in the next few days. I just have to get home from Bali first! Not looking forward to the 11:00pm flight tonight!
 

I am building a deb package. In case someone wants to test it.
linux-image-6.3.0-rc5-rt8 
drive.google.com/file/d/1SQqTsNO9b9OnUE9.../view?usp=share_link
linux-headers-6.3.0-rc5-rt8
drive.google.com/file/d/1tOouR9qKzFT1jsY.../view?usp=share_link

In my case, reduce the time not so much, but it's quite okay now...
 

Cool. I am sure Peter's script can be tweaked to avoid the use of xconfig/menuconfig and output Deb's that can be shared.
 

I use "make olddefconfig" form the latest bookworm kernel linux-image-6.1.20-1-rt. And it seems to work

chris@cnc wrote:

I use "make olddefconfig" form the latest bookworm kernel linux-image-6.1.20-1-rt. And it seems to work

I'm not 100% sure how things work here but I would be worried about this approach.  Using the old config could bake in Debian's crappy kernel patches we are trying to avoid. We really want the pristine kernel source. This implies you need to make xconfig or make menuconfig to create the kernel config.

Having said that my attempt at using 6.3 sources from git failed overnight... 

There seem to be some changes do dependencies required to build the kernel. We came up with

I am not able to select everything correctly in xconfig.  is the kernel of linux mint or another distribution better?  maybe I could take this config as a basis?