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Is there a GitHub tracking thread (or something else) for those patches?

I would be really interested in following that thread.

hahaha

These things happen.

We're making some headway towards getting a 6.12 kernel going with rod's image builder.
But despite what the recent skuttlebutt suggests for arm platforms it seems that some patches are still required for realtime.

I have made a mistake. I thought the kit I bought gave no *physical^ access to the SD card. But, it does.
My apologies for the trouble and misunderstanding.

Tom

I just installed linuxcnc on my desktop PC  using the Debian trixie alpha1 ISO on an AMD64 PC
Linuxcnc 2.3 is included in the trixie repositories
It installed fine and brought in the PREEMPT_RT kernel.
Linuxcnc started Using POSIX realtime with no further action

So it looks like its a Raspberry Pi thing which is resolved by applying the kernel patches. I'll try tonight

I just thought it was a little ironic as I posted about not being able to find any reference to any major hardware changes.

Cant do this anymore bye all wrote:

Just got info from 2 suppliers that there are 16GB RPi 5 for sale. No mention of any other hardware updates.

8 gb should be heaps. I havenever used more than 4 gb

Stand by. Trying to make a new pi5 image with all of our learnings
 

Just got info from 2 suppliers that there are 16GB RPi 5 for sale. No mention of any other hardware updates.

Cant do this anymore bye all wrote:

As far as I have been able to see there has been no major hardware updates to the RPi5. Or are you referring to the ability to boot from NVME ?
 

I think there has been a lot of improvement under the hood including making the 6.12 kernel available.But yeh, not something you can really see.

Just start a new thread that is quite easy.
Have you a link to the kits that "don't offer access to the SD card" ?

As far as I have been able to see there has been no major hardware updates to the RPi5. Or are you referring to the ability to boot from NVME ?

When claims like that are made it would be nice to provide a link, it's rather frustrating for someone to mention something like that with no references, as this would be a major shake up for the RPi platform.

@royka I can confirm that you fix works on Raspberry Pi 5. See this thread:

forum.linuxcnc.org/media/kunena/attachme...ernel-realtime.patch

Apparently you can buy Raspberry Pi 5 kits that don't offer access to the SD card...

I'm aiming to build from released sources and load it up.

%lost interest: If you think I should switch to another thread for questions please just let me know where/how.

Thanks,
Tom

Hello all. I'm trying out LinuxCNC 2.9.3 on the 6.12 kernel running on a Raspberry Pi 5. Installation goes fine, but LinuxCNC refuses to acknowledge I'm running a realtime kernel. On startup, it spits out the message: "Note: Using POSIX non-realtime"

However, `uname-a` shows:
Linux plasma 6.12.8-v8-16k+ #1 SMP PREEMPT_RT Tue Jan  7 22:00:59 CET 2025 aarch64 GNU/Linux

My installations script is here:
gist.github.com/alangibson/12700b72f737889536565896143eefe0

Can anyone make out my mistake? Or is there a known issue? I've searched but found nothing applicable.

If you did not cause more extensive damage, you (or someone local with the right equipment)
should be able to replace the ISL32174 that's fried...

I just accidentally swapped the 24v output port on one of my RTelligent Drivers for the drive-stepper input ports and blew up at least one of the 6 stepper outputs (likely two) on my 7i95T.

Once I get past suicidal thoughts I will shift all my joints over to check the possibly that I may have only blown two step-gens. Each pair of two step-gens share the IC that smoked so I'm betting 0 and 1 are gone but if 2-5 are still viable I might be able to limp along and continue to make some progress on the router which is XYYZ configuration.

Ironically, I was just going back through all the wiring straightening it all out and zip-tying everything. I just happened to swap two identically looking plugs and poof 'magic smoke'.

Bit of trivia... the digital aspects of the 7i95 seem to have remain unharmed. Led's report no errors on start and LinuxCNC connects right up and thinks nothings wrong.

Worse than the cost, it took me six weeks to get that board from Mesa, so I Guess I had better order a new one before Trump's Tariff plans kick in.

Yes what is there is 2.9.2.
Downloaded 2.9.3 and it makes a huge difference for me on the Pi 5.
I wasn't getting 1080p on the display and axis was always clipped and wouldn't show me the status area at the bottom of the screen.
Switched to the newer build and I've got 1080p and can see the full screen.

Thanks!