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Groups > linux.debian.kernel > #91105

Bug#1121192: kworker: Events_unbound, kworker processes, continually using CPU.

Cross-posted to 2 groups.

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Package: linux-image-6.16.3+deb13-amd64-unsigned
Followup-For: Bug #1121192
X-Debbugs-Cc: ben.75@bmg7.com

Answer is yes to both of your questions.

It is kinda hard to explain but mainly I will be working on my computer when I
notice that the average frequency will be pegged at the top (4.4ghz in my
case), If I open system monitor I will see these 3 processes at the top of the
list. This may last for a few minutes and then my computer will go back to
idle.

Also when using browsers, both Brave and Firefox, depending on the website I
will notice high CPU usage, such as scrolling through facebook but not limited
to that website.

I installed the nivida drivers and this took care of the problem in the
browsers at least. I didn't use it long with the Nivida drivers because it
causes other problems that are much worse. Basically If I wake the screens from
the off state, I get a black screen with a mouse but no picture. I can move my
mouse over the password box and type it in blind, hit enter and wait. Sometimes
it will load the desktop, but more often than not I needed to reboot to get to
the desktop. ( I think this is a KDE problem. )

I am currently on the 6.17 Kernel from backports, but this did not help any of
this.


Regards,
Benjamin


-- System Information:
Debian Release: 13.3
  APT prefers stable-updates
  APT policy: (500, 'stable-updates'), (500, 'stable-security'), (500, 'stable')
Architecture: amd64 (x86_64)

Kernel: Linux 6.17.13+deb13-amd64 (SMP w/6 CPU threads; PREEMPT)
Kernel taint flags: TAINT_OOT_MODULE, TAINT_UNSIGNED_MODULE
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE not set
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

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Bug#1121192: kworker: Events_unbound, kworker processes, continually using CPU. Benjamin Martin <ben.75@bmg7.com> - 2026-02-07 17:20 +0100
  Bug#1121192: kworker: Events_unbound, kworker processes, continually using CPU. Ben Hutchings <ben@decadent.org.uk> - 2026-02-08 19:30 +0100
    Bug#1121192: kworker: Events_unbound, kworker processes, continually using CPU. Benjamin Martin <benjamin@bmg7.com> - 2026-02-09 14:00 +0100

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