https://bugzilla.kernel.org/show_bug.cgi?id=219055
Bug ID: 219055
Summary: kacpi_notify high cpu
Product: ACPI
Version: 2.5
Hardware: All
OS: Linux
Status: NEW
Severity: normal
Priority: P3
Component: ACPICA-Core
Assignee: acpi_acpica-c...@kernel-bugs.osdl.org
Reporter: wil...@gmail.com
Regression: No
I picked up a HP Victus 15.6 inch Gaming Laptop 15-fb2000 during the mid-July
sales frenzy. I did a fresh install of Ubuntu 24.04 which comes with kernel
6.8.0-31. The load after completing boot shoots up to over 80!
I found kacpi_notify as the cause.
snippets to keep the Description brief with attached files to come.
---
top - 20:00:05 up 10 min, 1 user, load average: 86.24, 76.27, 42.44
Tasks: 453 total, 2 running, 451 sleeping, 0 stopped, 0 zombie
%Cpu(s): 0.1 us, 8.5 sy, 0.0 ni, 91.4 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st
MiB Mem : 62040.5 total, 51595.7 free, 3166.0 used, 8146.3 buff/cache
MiB Swap: 0.0 total, 0.0 free, 0.0 used. 58874.4 avail Mem
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
127 root 20 0 0 0 0 D 1.3 0.0 0:03.71 [kworker/11:1+kacpi_notify]
280 root 20 0 0 0 0 D 1.3 0.0 0:06.63 [kworker/5:5+kacpi_notify]
314 root 20 0 0 0 0 D 1.3 0.0 0:06.68 [kworker/5:12+kacpi_notify]
ubuntu@ubuntu:~$ grep . -r /sys/firmware/acpi/interrupts/ | awk '$2 > 0'
/sys/firmware/acpi/interrupts/sci: 1907
/sys/firmware/acpi/interrupts/gpe_all: 1907
/sys/firmware/acpi/interrupts/gpe17: 1907 EN enabled unmasked
---
I found a previous bug that mentions the unloading the ucsi_acpi module.
Bug 217076 - Charging causes high CPU usage on LG Gram laptops series Z90Q
I would like some help identifying if it is similar in nature since that patch
was very specific to those LG models.
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