I would like to know if anyone found a solution for lg gram systems.
Currently i am using HW and os see below. kernel is from mainline
archive
Operating System: Linux Mint 21.3
Kernel: Linux 5.19.17-051917-generic
Architecture: x86-64
Hardware Vendor: LG Electronics
Hardware Model: 17Z90Q-G.AA78G
This kernel works, when you start the system without AC plugged. suspend, plug
AC, wakeup.
boot param for kernel is acpi_mask_gpe=0x6E
0x6e can be unmasked immediately after boot.
All newer kernels i tested have the problem with kworkers driving the load to 3
and more, rendering the system unusable when on ac.
Without AC plugged they all work fine, with far better performance and energy
saving as the 5.19
The kernelfunction hogging cpu is always something like os_map_remove.
Cant check it right now exactly while writing.
Did anyone find a kernel version > 5.19 that works also on AC on these
Systems?
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https://bugs.launchpad.net/bugs/1990876
Title:
kworker high CPU usage: issue with xhci_hub_control from xhci_pci
kernel module
Status in linux package in Ubuntu:
Confirmed
Bug description:
Using Ubuntu 22.04, as of yesterday night upon rebooting the framework
laptop (which had not been rebooted for several weeks), the fans come
on strong and I see, with top, a kworker process at nearly 100% CPU
utilization, which makes the laptop unusable.
I have an early Framework laptop with an 11th Gen Intel(R) Core(TM)
i7-1165G7 @ 2.80GHz.
I removed all USB-c expansion cards except for one with an USB-c pass
through, to no avail.
With perf I have been able to determine that the xhci_hub_control and
perhaps xhci_bus_suspend are at fault. As a matter of fact, the laptop
cannot suspend any more, when it was working flawlessly until the
reboot.
$ sudo apt install linux-tools-common linux-tools-$(uname -r)
$ sudo -i
# echo -1 > /proc/sys/kernel/perf_event_paranoid
# perf record
control-c
# perf report
Samples: 125K of event 'cycles', Event count (approx.): 142991820424
Overhead Command Shared Object Symbol
54.11% kworker/5:2+usb [kernel.kallsyms] [k] xhci_hub_control
◆
7.94% kworker/5:2+usb [kernel.kallsyms] [k] xhci_bus_suspend
▒
0.98% kworker/5:2+usb [kernel.kallsyms] [k] kfree
▒
0.86% kworker/5:2+usb [kernel.kallsyms] [k]
_raw_spin_lock_irqsave
...
What can be done to address this issue with a kworker?
I suspect perhaps the new kernel is at fault. I tried rebooting to the
prior kernel 5.15.0-47-generic and 5.15.0-46-generic, but with the
same result.
What has changed? What can be done about this kworker and the
xchi_hub_control?
A temporary solution:
$ sudo modprobe -r xhci_pci
… which results in the kworker process disappearing from `top`
(reduced CPU usage to near zero), the fans wind down, and
unfortunately the ethernet expansion bay doesn’t work anymore but at
least wifi does. Keyboard and touchpad also work. And suspend with
deep also work well, just tested it.
I assume other expansion bays will stop working too, but the laptop is
at least charging: the USB-c pass-through works.
See also:
https://community.frame.work/t/kworker-stuck-at-near-100-cpu-usage-with-ubuntu-22-04/23053/2
ProblemType: Bug
DistroRelease: Ubuntu 22.04
Package: linux-image-5.15.0-48-generic 5.15.0-48.54
ProcVersionSignature: Ubuntu 5.15.0-48.54-generic 5.15.53
Uname: Linux 5.15.0-48-generic x86_64
NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
ApportVersion: 2.20.11-0ubuntu82.1
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: albert 4870 F.... pulseaudio
CasperMD5CheckResult: unknown
CurrentDesktop: ubuntu:GNOME
Date: Mon Sep 26 18:14:26 2022
InstallationDate: Installed on 2022-03-11 (199 days ago)
InstallationMedia: Ubuntu 20.04.4 LTS "Focal Fossa" - Release amd64 (20220223)
Lsusb: Error: command ['lsusb'] failed with exit code 1:
Lsusb-t:
Lsusb-v: Error: command ['lsusb', '-v'] failed with exit code 1:
MachineType: Framework Laptop
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=/BOOT/ubuntu_ezm1f9@/vmlinuz-5.15.0-48-generic
root=ZFS=rpool/ROOT/ubuntu_ezm1f9 ro quiet splash nvme.noacpi=1
mem_sleep_default=deep vt.handoff=1
RelatedPackageVersions:
linux-restricted-modules-5.15.0-48-generic N/A
linux-backports-modules-5.15.0-48-generic N/A
linux-firmware 20220329.git681281e4-0ubuntu3.5
RfKill:
1: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
SourcePackage: linux
UpgradeStatus: Upgraded to jammy on 2022-04-28 (150 days ago)
dmi.bios.date: 07/19/2022
dmi.bios.release: 3.16
dmi.bios.vendor: INSYDE Corp.
dmi.bios.version: 03.10
dmi.board.asset.tag: *
dmi.board.name: FRANBMCP0B
dmi.board.vendor: Framework
dmi.board.version: AB
dmi.chassis.asset.tag: FRANBMCPAB1484011X
dmi.chassis.type: 10
dmi.chassis.vendor: Framework
dmi.chassis.version: AB
dmi.modalias:
dmi:bvnINSYDECorp.:bvr03.10:bd07/19/2022:br3.16:svnFramework:pnLaptop:pvrAB:rvnFramework:rnFRANBMCP0B:rvrAB:cvnFramework:ct10:cvrAB:skuFRANBMCP0B:
dmi.product.family: FRANBMCP
dmi.product.name: Laptop
dmi.product.sku: FRANBMCP0B
dmi.product.version: AB
dmi.sys.vendor: Framework
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