FEDORA-2025-985de950a7 — bugfix update for kernel

stable

kernel-6.15.5-200.fc42

FEDORA-2025-985de950a7 created by jforbes 7 months ago for Fedora 42

The 6.15.5 stable kernel update contains a number of important fixes across the tree.

Reboot Required

After installing this update it is required that you reboot your system to ensure the changes supplied by this update are applied properly.

How to install

Updates may require up to 24 hours to propagate to mirrors. If the following command doesn't work, please retry later:

sudo dnf upgrade --refresh --advisory=FEDORA-2025-985de950a7

This update has been submitted for testing by jforbes.

7 months ago

This update's test gating status has been changed to 'waiting'.

7 months ago

This update's test gating status has been changed to 'failed'.

7 months ago

imabug provided feedback 7 months ago

karma

Test Case kernel regression

bretth commented & provided feedback 7 months ago

karma

default & performance tests pass (KVM)

Test Case kernel regression

nixuser commented & provided feedback 7 months ago

This is causing kernel-core crashes on every boot caused by the vmwgfx driver. See https://bugzilla.redhat.com/show_bug.cgi?id=2367745 from comment 1. Regression isn't new for dot 5 though. Kernel is otherwise functional and regression tests are all passing,.

Test Case kernel regression

This update's test gating status has been changed to 'waiting'.

7 months ago

radioactivepb commented & provided feedback 7 months ago

karma

Hardware

AMD Ryzen 7 9800X3D
NVIDIA RTX 4090 (Using proprietary drivers)

Notes

Default tests pass
Generally functional

Test Case kernel regression

This update's test gating status has been changed to 'failed'.

7 months ago

This update has been pushed to testing.

7 months ago

This update's test gating status has been changed to 'passed'.

7 months ago

This update can be pushed to stable now if the maintainer wishes

7 months ago

besser82 commented & provided feedback 7 months ago

karma

Works great on Lenovo T480 and M715q Gen 2! LGTM! =)

markec provided feedback 7 months ago

karma

bojan commented & provided feedback 7 months ago

karma

Works.

eifr0980 provided feedback 7 months ago

karma

filiperosset commented & provided feedback 7 months ago

karma

no regressions noted

fweig commented & provided feedback 7 months ago

karma

Fixes regression that made GhostTTY unusable.

anotheruser provided feedback 7 months ago

karma

Test Case kernel regression

itrymybest80 provided feedback 7 months ago

karma

Test Case kernel regression

geraldosimiao commented & provided feedback 7 months ago

karma

Working fine

Product Name: Acer Aspire A515-45         
Processors: 16 × AMD Ryzen 7 5700U with Radeon Graphics      
Memory: 24 GiB of RAM       
Wi-Fi: MEDIATEK MT7921 802.11ax PCI Express Wireless Network Adapter        
Bluetooth: Lite-On Wireless_Device

Test Case kernel regression

pampelmuse commented & provided feedback 7 months ago

karma

Works for me.

Test Case kernel regression

derekenz commented & provided feedback 7 months ago

karma

Works

AMD 5600G both tests are a PASS.

Test Case kernel regression

pbrobinson commented & provided feedback 7 months ago

karma

Works on a number of aarch64 devices including various rpi4/rockchip/tegra.

Test Case kernel regression

adrienb39 provided feedback 7 months ago

karma

Test Case kernel regression

allmorninlong commented & provided feedback 7 months ago

karma

Regression report for kernel-6.15.5-200.fc42.x86_64 System: Fedora 42 Gnome/Wayland, AMD Ryzen 9 7900, AMD Radeon RX 7800 XT Issues with kernel-6.15.5-200.fc42.x86_64:

Screen flickering/flashing artifacts, particularly when using web browser (Vivaldi Flatpak) Flickering appears as thin horizontal bars that flash briefly on screen, especially around text/fonts on websites Problem occurs frequently when dialog boxes are open (e.g., text input fields) Similar flickering issues occur during gaming Slight general system performance degradation (not gaming-specific)

Current status: Staying on kernel-6.14.11-300.fc42.x86_64 which works perfectly without any of these issues. Previous kernels (6.15.3 and 6.15.4) also had similar problems.

Test Case kernel regression

jforbes commented 7 months ago

@allmorninglong This is not a new regression with 6.15.5. By giving negative karma, you are saying that this update should not push even though the current stable kernel is 6.15.4. Essentially saying that no one else should get any fixes until your specific issue is fixed. Also of note, the issue you mention is believed to be a firmware issue, not a kernel issue. If you rebuild the 6.14.11 initramfs with your current linux-firmware packages installed, you could verify this and that would be rather helpful. Please back up your existing 6.14.11 initramfs before the rebuild for quick restore should this prove to be the iisue.

g6avk commented & provided feedback 7 months ago

karma

Works for me.. The tests pass OK.
Work Station, Asus prime mobo - AMD Ryzen5 5600g/iGPU, 400 Series Chipset, (UEFI) Secure boot, SSD's > RAID1 (ext4)

Test Case kernel regression

gamertechau commented & provided feedback 7 months ago

karma

6.15.5 adds a new or modified random system freeze/spontaneous reboot not present in 6.15.4 or earlier. Unaffected by apps being open or idle on the desktop. linux-firmware is identical between both kernels, so not the trigger here. Baremetal, not VM.

6.15.5 100% chance to freeze/reboot with no consistent trigger. 6.15.4 after a reboot, the AMD/Firefox hardware acceleration freeze doesn't take effect and can be used freely. 6.14.11 stable.

Ryzen 5900X + Radeon 7900 XT

Test Case kernel regression

thetick commented & provided feedback 7 months ago

karma

Working fine on 5600U / Vega iGPU.

krust commented & provided feedback 7 months ago

karma

LGTM @ AMD Ryzen 7 5700X + Radeon 6750XT Tests passed

Test Case kernel regression

allmorninlong commented 7 months ago

@jforbes I performed the test - rebuilt the 6.14.11 initramfs with current firmware using sudo dracut -f /boot/initramfs-6.14.11-300.fc42.x86_64.img 6.14.11-300.fc42.x86_64 and rebooted.The rebuilt initramfs shows current firmware integration (size increased from 54.8MB to 55.2MB, timestamp updated to today), yet the system works flawlessly without any of the screen flickering issues reported with 6.15.x kernels.

@fedora:/boot$ stat /boot/initramfs-6.14.11-300.fc42.x86_64.img
       Taille : 55155260
     Modif. : 2025-07-08 09:29:32.787849323 +0200

alternateved commented & provided feedback 7 months ago

karma

Tests passed and works fine on AMD Ryzen 7 5800U with Vega iGPU.

Test Case kernel regression

jforbes commented 7 months ago

@allmorninglong Thanks for testing that. Looks like it is a different issue (and that is a good thing because it is more likely to get a fix quickly.)

krust commented 7 months ago

Ive did some more testing and cant sleep/suspend on 6.15.5-200.fc42. @ AMD Ryzen 7 5700X + Radeon 6750XT Yesterday the Suspend option at gnome was not working but i was doing some file-copies and thought it couldve been that. Today i did more testing, fresh boot -> suspend -> (pc sleeps) -> waking led him to just shutdown with no video signal, journalctl marking as success: jul 08 12:09:09 krakatoa systemd-sleep[4443]: Successfully froze unit 'user.slice'.jul 08 12:09:09 krakatoa systemd-sleep[4443]: Performing sleep operation 'suspend'... `jul 08 12:09:44 krakatoa systemd-sleep[4443]: System returned from sleep operation 'suspend'.

krust commented 7 months ago

Please desconsider my last message. The same behaviour also started happening on previously 6.15.4 . Thanks !

jfoechsler commented 7 months ago

Just FYI, 6.15.5 didn't help with the nouveau module not working since 6.15 (https://bugzilla.redhat.com/show_bug.cgi?id=2374827) Probably wasn't expected to, but still...

inffy provided feedback 7 months ago

karma

pbrobinson commented 7 months ago

@jfoechsler the nouveau module is likely an issue with linux-firmware that should be fixed in the new version that's on it's way to testing.

kparal commented & provided feedback 7 months ago

karma

Working fine with Thinkpad P1 Gen4 using

00:02.0 VGA compatible controller [0300]: Intel Corporation TigerLake-H GT1 [UHD Graphics] [8086:9a60] (rev 01)

jfoechsler commented 7 months ago

@pbrobinson Great to hear. I just tried firmware-20250708 from Koji and can indeed confirm display is back +1.

Thanks.

johnh99 commented & provided feedback 7 months ago

karma

Seems OK here. Ryzen 3700x, Rog Strix B550-F, Nvidia graphics.

Test Case kernel regression

jfoechsler commented & provided feedback 7 months ago

karma

Works for me. Host: Z690 PG Velocita Kernel: Linux 6.15.5-200.fc42.x86_64 Display (DEL4239): 2560x1440 @ 165 Hz in 27" [External] Display (DELL U2412M): 1920x1200 @ 60 Hz in 24" [External] * CPU: 13th Gen Intel(R) Core(TM) i5-13400F (16) @ 4.60 GHz GPU: NVIDIA GeForce RTX 4070 Ti SUPER [Discrete]

boxjellyfish commented & provided feedback 7 months ago

karma

Default test suite passed. (AMD Ryzen 4500U - iGPU (Vega 6).

Test Case kernel regression

fernando-debian commented & provided feedback 7 months ago

karma

works

andrea-berlingieri commented & provided feedback 7 months ago

karma

Works for me on Framework 13, AMD Ryzen 5 7640U w/ Radeon 760M Graphics

This update has been submitted for stable by jforbes.

7 months ago

This update has been pushed to stable.

7 months ago

gilbert-fernandes commented & provided feedback 7 months ago

karma

Lenovo P16s Gen2 AMD (7840U + 780M) : everything is working fine. Tests run and uploaded (kernel-test-1752228654)

Test Case kernel regression

benthaase commented & provided feedback 7 months ago

karma

I'm happy to report that this is the first kernel in over two years that works reliably on theLenovo P14s Gen 4 (AMD), even with multiple USB-C docking and suspend/resume cycles. So far, it has been stable for multiple days, with no crashes, despite frequent docking, undocking, suspending, and resuming.

To achieve proper 90Hz panel refresh and avoid resume issues (related to Panel Self Refresh / PSR), the following kernel parameter must be set:

amdgpu.dcdebugmask=0x8010

Add this to GRUB_CMDLINE_LINUX in /etc/default/grub, then regenerate the GRUB config and reboot.

'Thank you' to everyone involved <3

Test Case kernel regression

benthaase commented & provided feedback 7 months ago

karma

Looks like I praised the kernel a bit too early...

Just today, my Lenovo P14s Gen 4 (AMD) failed to enter suspend and then failed to resume properly upon opening the lid. The system hung and required a force reboot.

After rebooting, I noticed the LUKS password prompt was invisible — I could still type in the passphrase blindly to boot, but nothing was displayed on screen.

So the instability saga continues — this kernel is still not reliable.

From the journal:

Jul 14 06:49:49 fedora NetworkManager[1836]: <info>  [1752468589.4782] device (wlp2s0): set-hw-addr: reset MAC address to <redacted> (unmanage)
Jul 14 06:49:49 fedora wpa_supplicant[1856]: wlp2s0: CTRL-EVENT-REGDOM-CHANGE init=DRIVER type=COUNTRY alpha2=BR
Jul 14 06:49:49 fedora wpa_supplicant[1856]: wlp2s0: CTRL-EVENT-REGDOM-CHANGE init=DRIVER type=COUNTRY alpha2=BR
Jul 14 06:49:49 fedora wpa_supplicant[1856]: p2p-dev-wlp2s0: CTRL-EVENT-DSCP-POLICY clear_all
Jul 14 06:49:49 fedora wpa_supplicant[1856]: p2p-dev-wlp2s0: CTRL-EVENT-DSCP-POLICY clear_all
Jul 14 06:49:49 fedora wpa_supplicant[1856]: nl80211: deinit ifname=p2p-dev-wlp2s0 disabled_11b_rates=0
Jul 14 06:49:49 fedora wpa_supplicant[1856]: wlp2s0: CTRL-EVENT-DSCP-POLICY clear_all
Jul 14 06:49:49 fedora wpa_supplicant[1856]: wlp2s0: CTRL-EVENT-DSCP-POLICY clear_all
Jul 14 06:49:49 fedora wpa_supplicant[1856]: nl80211: deinit ifname=wlp2s0 disabled_11b_rates=0
Jul 14 06:49:51 fedora systemd[1]: Reached target sleep.target - Sleep.
Jul 14 06:49:51 fedora systemd[1]: Starting systemd-suspend.service - System Suspend...
Jul 14 06:49:51 fedora systemd[1]: user@0.service: Unit now frozen-by-parent.
Jul 14 06:49:51 fedora systemd[1]: user-0.slice: Unit now frozen-by-parent.
Jul 14 06:49:51 fedora systemd[1]: session-c2.scope: Unit now frozen-by-parent.
Jul 14 06:49:51 fedora systemd[1]: session-2.scope: Unit now frozen-by-parent.<redacted>
Jul 14 06:49:51 fedora systemd[1]: user@1000.service: Unit now frozen-by-parent.
Jul 14 06:49:51 fedora systemd[1]: user.slice: Unit now frozen.
Jul 14 06:49:51 fedora systemd[1]: user-1000.slice: Unit now frozen-by-parent.
Jul 14 06:49:51 fedora systemd-sleep[193045]: Successfully froze unit 'user.slice'.
Jul 14 06:49:51 fedora kernel: PM: suspend entry (s2idle)
Jul 14 06:49:51 fedora systemd-sleep[193045]: Performing sleep operation 'suspend'...
Jul 14 06:49:51 fedora kernel: Filesystems sync: 0.029 seconds
Jul 14 06:50:11 fedora kernel: Freezing user space processes
Jul 14 06:50:11 fedora kernel: Freezing user space processes completed (elapsed 0.003 seconds)
Jul 14 06:50:11 fedora kernel: OOM killer disabled.
Jul 14 06:50:11 fedora kernel: Freezing remaining freezable tasks
Jul 14 06:50:11 fedora kernel: Freezing remaining freezable tasks failed after 20.006 seconds (0 tasks refusing to freeze, wq_busy=1):
Jul 14 06:50:11 fedora kernel: Showing freezable workqueues that are still busy:
Jul 14 06:50:11 fedora kernel: workqueue events_freezable: flags=0x4
Jul 14 06:50:11 fedora kernel:   pwq 58: cpus=14 node=0 flags=0x0 nice=0 active=0 refcnt=2
Jul 14 06:50:11 fedora kernel:     inactive: pci_pme_list_scan
Jul 14 06:50:11 fedora kernel: workqueue pm: flags=0x4
Jul 14 06:50:11 fedora kernel:   pwq 10: cpus=2 node=0 flags=0x0 nice=0 active=0 refcnt=2
Jul 14 06:50:11 fedora kernel:     inactive: pm_runtime_work
Jul 14 06:50:11 fedora kernel: workqueue usb_hub_wq: flags=0x4
Jul 14 06:50:11 fedora kernel:   pwq 50: cpus=12 node=0 flags=0x0 nice=0 active=1 refcnt=2
Jul 14 06:50:11 fedora kernel:     in-flight: 179798:hub_event
Jul 14 06:50:11 fedora kernel: Restarting kernel threads ... done.
Jul 14 06:50:11 fedora kernel: OOM killer enabled.
Jul 14 06:50:11 fedora rtkit-daemon[1650]: The canary thread is apparently starving. Taking action.
Jul 14 06:50:11 fedora rtkit-daemon[1650]: Demoting known real-time threads.
Jul 14 06:50:11 fedora rtkit-daemon[1650]: Successfully demoted thread 190387 of process 190209 (/usr/lib64/firefox/firefox).
Jul 14 06:50:11 fedora rtkit-daemon[1650]: Successfully demoted thread 190135 of process 189956 (/usr/lib64/thunderbird/thunderbird).
Jul 14 06:50:11 fedora rtkit-daemon[1650]: Demoted 2 threads.

Still, the system is unreliable with suspend/resume. Hopefully this is helpful for anyone else testing on similar hardware.

bittin commented & provided feedback 7 months ago

karma

Works on my Thinkpad Edge

panayotovip commented & provided feedback 7 months ago

karma

no detect mt7922 Bluetooth, only Wi-Fi update all packages from cmd via dnf, same result :(

[ 6.686552] Bluetooth: Core ver 2.22 [ 6.686566] NET: Registered PF_BLUETOOTH protocol family [ 6.686567] Bluetooth: HCI device and connection manager initialized [ 6.686569] Bluetooth: HCI socket layer initialized [ 6.686571] Bluetooth: L2CAP socket layer initialized [ 6.686575] Bluetooth: SCO socket layer initialized [ 6.774547] Bluetooth: hci0: HW/SW Version: 0x008a008a, Build Time: 20250523103438 [ 8.761612] Bluetooth: BNEP (Ethernet Emulation) ver 1.3 [ 8.761615] Bluetooth: BNEP filters: protocol multicast [ 8.761618] Bluetooth: BNEP socket layer initialized [ 17.166752] Bluetooth: hci0: Execution of wmt command timed out [ 17.166756] Bluetooth: hci0: Failed to send wmt patch dwnld (-110) [ 17.166771] Bluetooth: hci0: Failed to set up firmware (-110) [ 17.166773] Bluetooth: hci0: HCI Enhanced Setup Synchronous Connection command is advertised, but not supported.

Please log in to add feedback.

Metadata

Type

bugfix

Karma

Signed

Content Type

RPM

Test Gating

passed

Autopush Settings

Unstable by Karma

-3

Stable by Karma

disabled

Stable by Time

disabled

Dates

submitted

7 months ago

in testing

7 months ago

in stable

7 months ago

approved

7 months ago

Builds

kernel-6.15.5-200.fc42

Automated Test Results

passed

Test Cases


-1	15	Test Case kernel regression