The kernel team is working on final integration for Linux kernel 6.15. This version was just recently released, and will arrive soon in Fedora Linux. As a result, the Fedora Linux kernel and QA teams have organized a test week from Sunday, June 08, 2025 to Sunday, June 15, 2025. The wiki page in this article contains links to the test images you’ll need to participate. Please continue reading for details.
How does a test week work?
A test week is an event where anyone can help ensure changes in Fedora Linux work well in an upcoming release. Fedora community members often participate, and the public is welcome at these events. If you’ve never contributed before, this is a perfect way to get started.
To contribute, you only need to be able to do the following things:
- Download test materials, which include some large files
- Read and follow directions step by step
The wiki page for the kernel test week has a lot of good information on what and how to test. After you’ve done some testing, you can log your results in the test week web application. If you’re available on or around the days of the event, please do some testing and report your results. We have a document which provides all the necessary steps.
Happy testing, and we hope to see you on one of the test days.
David Corkrey Sr.
Already running 6.15.1 for days with no problems.
Gerald Cox
Is anyone aware the the performance test script is broken:
https://bugzilla.redhat.com/show_bug.cgi?id=2361446
Doug
From the wiki page referenced above… The following returned an empty list:
koji list-builds –package=kernel –after=”2025-06-07″ –pattern “kernel-6.15*”
But this:
koji list-builds –package=kernel –after=”2025-06-06″ –pattern “kernel-6.15*”
returned:
kernel-6.15.1-200.fc42
Bram
No test kernel to be seen on my AMD64 and on my RPI4.
koji list-builds –package=kernel –after=”2025-06-07″ –pattern “kernel-6.15*
Are these kernel not yet available ?
Gerald Cox
@Bram, the kernel was made available a day early (2025-06-06). Personally, I always just go to koji directly and search for “kernel*” to get an idea of what is going on.
Bram
Thanks Gerald Cox,
now it installs on both my systems. How simple can it be.
Bram
S. J.
Unfortunately, the latest nvidia-575.57.08 driver with the test kernel kernel-6.15.1-200.fc42 does not work on my computer:
Gigabyte Technology Co., Ltd. X870E AORUS ELITE WIFI7
NVIDIA GeForce RTX 4060
AMD Ryzen™ 5 9600X
RAM – 128 GB (4×32 GB) PATRIOT 6000 DDR5 (conf. 5600 MT/s – EXPO 4)
Storage: 1 TB NVMe M.2 PCIe 5.
Driver compilation works correctly but unfortunately the driver does not work (I repeated compilation manually via akmods and refreshed the kernel boot image via dracut). It reports in incomplete mixed mesa/nvidia mode at 1024×768 resolution – and that’s it for tests – failure.
RG
I think there are some important changes gpu wise in this version. Here it says nouveau will be superseded by a new rust-based driver called nova-core. https://docs.kernel.org/next/gpu/nova/index.html
Mark
kernel 6.15 added nova_core driver. You have to blacklist nova_core. See blacklist for nouveau driver
S. J.
Exactly, I completely forgot about it, because as I read it was supposed to be available around kernel 6.16+. Adding the following modification in /etc/default/grub in the GRUB_CMDLINE_LINUX section helped:
“(…) rd.driver.blacklist=nouveau,nova_core modprob.blacklist=nouveau,nova_core”.
And the problem disappeared – it works…
RG
My python scripts that are working fine on previous kernels, now take 2 GB of ram and are killed by the system… Just saying in case anyone noticed…