#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: | R1/beta2 |
| Component: | Drivers/ACPI | Version: | R1/Development |
| Keywords: | acpi_task | Cc: | |
| Blocked By: | Blocking: | ||
| Platform: | All |
Description (last modified by )
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)
Change History (9)
comment:1 by , 8 years ago
comment:2 by , 8 years ago
| Description: | modified (diff) |
|---|
comment:3 by , 8 years ago
| Component: | - General → Drivers/ACPI |
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| Owner: | changed from to |
comment:4 by , 7 years ago
| Resolution: | → fixed |
|---|---|
| Status: | new → closed |
by , 6 years ago
| Attachment: | acpi_task_100.png added |
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by , 6 years ago
comment:5 by , 6 years ago
Lenovo E10-30. 100% load of one of the CPU cores (please look at the attachment).
comment:7 by , 5 years ago
| Milestone: | Unscheduled → R1/beta2 |
|---|
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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.