Opened 2 years ago

Closed 16 months ago

Last modified 5 months ago

#13360 closed bug (fixed)

acpi_task consuming 100% of one CPU and syslog full of KERN: port XXX messages

Reported by: davewthompson Owned by: tqh
Priority: normal Milestone: Unscheduled
Component: Drivers/ACPI Version: R1/Development
Keywords: acpi_task Cc:
Blocked By: Blocking:
Has a Patch: no Platform: All

Description (last modified by pulkomandy)

On my Lenovo ThinkCentre M93 one core is being consumed by the acpi_task constantly.

The syslog is also full of continuously-generated messages along the lines of:

KERN: usb hub 2: KERN: port 19 is not suspended
KERN: usb hub 2: port 19 is not in an over current state
KERN: usb hub 2: port 19 was reset
KERN: usb hub 2: KERN: port 20 is not suspended
KERN: usb hub 2: KERN: port 20 is not in an over current state
KERN: usb hub 2: port 20 was reset
KERN: usb hub 2: KERN: port 18 is not suspended
KERN: usb hub 2: KERN: port 18 is not in an over current state
KERN: usb hub 2: port 18 was reset

Attachments (2)

acpi_task_100.png (147.7 KB) - added by fsv141 5 months ago.
about.png (34.5 KB) - added by fsv141 5 months ago.

Download all attachments as: .zip

Change History (8)

comment:1 Changed 2 years ago by pulkomandy

These look like two unrelated problems. The USB errors seem to come from the XHCI (USB3) driver, in my case I get those all the time but they don't result in excessive CPU use.

comment:2 Changed 2 years ago by pulkomandy

Description: modified (diff)

comment:3 Changed 2 years ago by diver

Component: - GeneralDrivers/ACPI
Owner: changed from nobody to tqh

comment:4 Changed 16 months ago by tqh

Resolution: fixed
Status: newclosed

The ACPI task should be fixed in hrev51720 or hrev51771.

Changed 5 months ago by fsv141

Attachment: acpi_task_100.png added

Changed 5 months ago by fsv141

Attachment: about.png added

comment:5 Changed 5 months ago by fsv141

Lenovo E10-30. 100% load of one of the CPU cores (please look at the attachment).

Last edited 5 months ago by fsv141 (previous) (diff)

comment:6 Changed 5 months ago by waddlesplash

Please open a new ticket and attach a syslog.

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