6.11 RC Kernel Testing

Announcements Repository
1

Hey together,

6.11 will be soon as stable released, and we need to proceed against some more testing.
We are now on the rc6 release and in around 2 weeks, the 6.11 stable kernel will be released released.

As always, it would be really great if some people would start using and test this kernel and provide us some reports.
On my Machine (4070S/9950X) there has been no heavy issues found and it seems pretty stable.

Some new interesting features:

  • amd-pstate Core Performance Boost has been offically merged
  • amd-pstate fast cppc support for amd-pstate=passive
  • amd-pstate preferred core has been reworked and is included in our patchset
  • le9 is now carried from @firelzrd This should provide a better heavy memory load expierence and less stutters
  • Improvements for btrfs, ext4, xfs
  • fstrim support for xfs
  • new memory management optimization
  • getrandom with vdso has been merged
  • FineIBT is now default enabled for Clang builds (Security)

How to test?

Simply run following:
sudo pacman -Syu linux-cachyos-rc linux-cachyos-rc-headers

in case of nvidia module you need additionally:
sudo pacman -S linux-cachyos-rc-nvidia-open open or linux-cachyos-rc-nvidia

4 Likes
3

Thx @ptr1337 , appreciate the work here.

5

You should not use zfs-dkms on CachyOS. We provide a perfect zfs integration with our precompiled zfs modules.

The package names are called:
linux-cachyos-zfs (for linux-cachyos kernel)
linux-cachyos-rc-zfs (for linux-cachyos-rc kernel)

The DKMS package we do not patch

1 Like
7

Yes, we know about zfs-dkms. Reason, we are maintaining our own custom modules :slight_smile:

9

sudo pacman -Sy
pacman -Ss linux-cachyos-rc-zfs

pacman -Ss linux-cachyos-rc-zfs
cachyos-znver4/linux-cachyos-rc-zfs 6.11.rc5-2
    zfs module for the Linux SCHED-EXT + Cachy Sauce Kernel by CachyOS with other patches and improvements kernel
cachyos/linux-cachyos-rc-zfs 6.11.rc5-1
    zfs module for the Linux SCHED-EXT + Cachy Sauce Kernel by CachyOS with other patches and improvements kernel
10

Are you interested in my 10 year old Asus Zen laptop for testing, or is it too old?

11

Any testing is welcome!
Its important to cover a lot of hardware, this helps the kernel community as well as us, since we are rolling out new kernels quite fast, aslong there are no heavy issues.

2 Likes
12 
uname -a
Linux cachyos-english 6.11.0-rc6-1-cachyos-rc #1 SMP PREEMPT_DYNAMIC Sun, 01 Sep 2024 12:59:17 +0000 x86_64 GNU/Linux

no issues when installing on qemu

CPU:
  Info: 2x 1-core model: Intel Core i7-6700 bits: 64 type: SMP cache:
    L2: 2x 4 MiB (8 MiB)
  Speed (MHz): avg: 3408 min/max: N/A cores: 1: 3408 2: 3408
Graphics:
  Device-1: Red Hat Virtio 1.0 GPU driver: virtio-pci v: 1
  Display: x11 server: X.Org v: 21.1.13 with: Xwayland v: 24.1.2 driver: X:
    loaded: modesetting dri: virtio_gpu gpu: virtio-pci
    resolution: 1360x768~60Hz
1 Like
13

Thank you all for the testing!
If you face any issues, please report them with “sudo cachyos-bugreport.sh”. After preanlysis we can forward this then to devlopers.

1 Like
14

What does rc stand for? run commands?
What is the difference?

15

Release Candidate @hotte

https://www.kernel.org/releases.html

16

Ah, thank you @altman !

17

No problem @Totte

18

its the process, when a new kernel version gets started. RC stands for release canidate and is the merging process from the beginning till its released as stable.

This goes commonly till rc7 and then stable version gets released. Every week is coming a new rc version, so around 7 weeks testing.

With rc6 Ill ask the community to test it a bit more, so that we have some coverage before going into stable. Also were reporting bugs directly to the developers too

1 Like
19

Big thank you for the explanation!

21

Looks good here after a few hours (intel v4).

23

@1fallen , I do this command every times I update my install.

In Terminal;

sudo cachyos-rate-mirrors

25

Oh, weird, it always worked on my end !

26

You need to do sudo pacman -Sy to update your local database.

28

the rc kernel seem to create performance issues with windows 10 in QEMU/KVM. Everything feels laggy and windows operations are very slow. I tried to quantify it with running “winsat formal” it ran in 1:39 in the 6.10.7-2 and the same kernel compiled for Icelake processor.It then ran in 1:43 in the 6.10.0-rc6-1 kernel. Feels worse than this looks…