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I missed kernel 6.9-rc2. Kernel 6.9-rc3 is available:


doug@s19:~$ uname -a
Linux s19 6.9.0-rc3-stk24 #21 SMP PREEMPT_DYNAMIC Mon Apr 8 16:37:45 PDT 2024 x86_64 x86_64 x86_64 GNU/Linux
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I'm not sure what you mean there. If you were referring to my grub command line suggestion, "preempt=none", that was about your original issue, not what you would expect to see for idle state names....

If you are willing, it would be good to try to isolate why 6.8.0-11 generic worked and 6.8.0-20 has this issue.

You might need to disable more than just the deepest idle state, but try one state...

What is your processor make and model? Do "grep --max-count=1 "model name" /proc/cpuinfo".
How many idle states does your system have? Do "ls -l -d /sys/devices/system/cpu/cpu6/cpuidle/state*".
Try...

As you know, I am happy about the merging of low-latency into generic. I have never been aware of any issues, although I mainly use the upstream mainline kernel, with no patches and no graphics. I...

Yes, I am confused. My Ubuntu 24.04 server updated to kernel 6.8.0-20. However, my Ubuntu 24.04 Desktop VM is still at kernel 6.8.0-11. My Desktop VM is still a mess after the upgrade fiasco that...

Same here.

Finally, as of the just released kernel 6.8.0-20-generic, the low latency kernel configuration has been put into the generic kernel.
The kernel configuration differences are:

...

I got caught up in this update mess yesterday. I was initially excited when I got an email from a bug report that kernel 6.8.0-20-generic had been released. My 24.04 desktop VM now has no network and...

The kernel 6.9 release candidate (RC) series has started.


doug@s19:~$ uname -a
Linux s19 6.9.0-060900rc1-generic #202403242136 SMP PREEMPT_DYNAMIC Sun Mar 24 21:49:17 UTC 2024 x86_64 x86_64...

Thanks to all that chimed in on this thread. If I understand correctly, while others had issues that may or may not have been the same, most are now resolved. Interesting. My issue remains and is...

I got the same with the ISO from 2024.03.22 and 2024.03.23. I chimed in on corradoventu's bug report.

I have started again, with a new install from the iso of 2024.03.23. Same issue. Launchpad is currently broken. Here is my pending latest bug report entry:


After a fresh install (from the...

It turns out that my "graphics no longer working" title might be incorrect. It seems my VNC desktop screen is merely frozen, dark but frozen. Because I see a cursor, also frozen, in the screen.
...

after a brand new re-install with the same result, I submitted a bug report and entered a FAIL in the testing tracker for todays ISO.

I have a 24.04 desktop VM running as a quest on my main Debian server. After updating it late yesterday, the graphics have stopped working. They work fine until after login, and they also work fine...

Oh, Thanks. Finally.

I see that "generic" has finally moved to 1000Hz. In my opinion, this is huge news, and about time:


doug@s19:~/kernel/linux$ scripts/diffconfig...

Kernel 6.8 has been released.

The issue I mentioned in post #21 above has been fixed and I am able to compile the kernel under the version of the gcc compiler used in Ubuntu 20.04.

...

Yes, but it is still only at the RC (Release Candidate) level upstream.

Kernel 6.8-rc7 is available. The patch for the issue I detailed in post #9 above is included. See commit:


f0a0fc10abb0 cpufreq: intel_pstate: fix pstate limits enforcement for adjust_perf call...

I really do not like UFW or trying to follow the resulting iptables rule set. I think the order here is wrong:



...
-A ufw-before-input -j ufw-not-local
-A ufw-before-input -d 224.0.0.251/32...

Yes, I did experience a similar array out of bounds error message during the kernel 6.6 RC series, but it was for different reason/bug and was fixed as of kernel 6.6-rc3. I do not use virtualbox and...

Yes, but the DHCP server can be on the same box as implements the router.

My main server box is a router/DHCP server/DNS server (internal only)/gateway to/from internet. I use iptables, as I...

The issue I raised in post #9 above has been isolated and a patch submitted upstream. Hopefully the fix will be included in -rc6.

I edited my earlier post a week ago with some actual turbostat data. I am not sure what else you want. I do have wall power, but it could not be representative because I have more memory, HDDs, SDDs,...