Public bug reported:
The culprit was the `nxp_nci_i2c` kernel driver running at 33% CPU
continuously in R state (visible in `ps aux` as `[irq/72-nxp-nci_i2c]`).
Unloading the module with `sudo modprobe -r nxp_nci_i2c` immediately
resolved the issue.
Workaround: blacklisting the module via `/etc/modprobe.d/disable-
nfc.conf`.
The driver appears to be stuck in an interrupt loop after the upgrade
ProblemType: Bug
DistroRelease: Ubuntu 26.04
Package: linux-image-7.0.0-15-generic 7.0.0-15.15
ProcVersionSignature: Ubuntu 7.0.0-15.15-generic 7.0.0
Uname: Linux 7.0.0-15-generic x86_64
ApportVersion: 2.34.0-0ubuntu2
Architecture: amd64
CasperMD5CheckResult: pass
CurrentDesktop: ubuntu:GNOME
Date: Mon May 18 10:44:24 2026
InstallationDate: Installed on 2022-12-12 (1253 days ago)
InstallationMedia: Ubuntu 22.04.1 LTS "Jammy Jellyfish" - Release amd64
(20220809.1)
MachineType: LENOVO 21J5S00B00
ProcFB: 0 amdgpudrmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-7.0.0-15-generic root=/dev/mapper/vg-sys
ro quiet splash
crashkernel=2G-4G:320M,4G-32G:512M,32G-64G:1024M,64G-128G:2048M,128G-:4096M
SourcePackage: linux
UpgradeStatus: Upgraded to resolute on 2026-05-15 (3 days ago)
dmi.bios.date: 12/10/2025
dmi.bios.release: 1.62
dmi.bios.vendor: LENOVO
dmi.bios.version: R23ET86W (1.62 )
dmi.board.asset.tag: Not Available
dmi.board.name: 21J5S00B00
dmi.board.vendor: LENOVO
dmi.board.version: ThinkPad
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: None
dmi.ec.firmware.release: 1.33
dmi.modalias:
dmi:bvnLENOVO:bvrR23ET86W(1.62):bd12/10/2025:br1.62:efr1.33:svnLENOVO:pn21J5S00B00:pvrThinkPadP14sGen3:rvnLENOVO:rn21J5S00B00:rvrThinkPad:cvnLENOVO:ct10:cvrNone:skuLENOVO_MT_21J5_BU_Think_FM_ThinkPadP14sGen3:pfaThinkPadP14sGen3:
dmi.product.family: ThinkPad P14s Gen 3
dmi.product.name: 21J5S00B00
dmi.product.sku: LENOVO_MT_21J5_BU_Think_FM_ThinkPad P14s Gen 3
dmi.product.version: ThinkPad P14s Gen 3
dmi.sys.vendor: LENOVO
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug resolute wayland-session
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Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/2152881
Title:
After upgrading from Ubuntu 24.04.4 to 26.04, the system became very
slow with load average spiking to 25+ (8-core CPU).
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