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

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I installed Debian 13.0 on a different drive. I had to update to 
security update 6.12.41, because of this bug "1088522", that had its fix 
added to 6.12.41.

I was wrong about it not having the 3 kworker processes, - they were 
there, near the top of the process list.


SO I continued my digging.


In looking for errors in in the logs I came up with this.


5.806493] nouveau 0000:01:00.0: NVIDIA TU117 (167000a1)
[    5.806514] nouveau 0000:01:00.0: firmware: failed to load 
nvidia/tu117/gsp/gsp-570.144.bin (-2)
[    5.806520] nouveau 0000:01:00.0: firmware: failed to load 
nvidia/tu117/gsp/gsp-570.144.bin (-2)
[    5.806525] nouveau 0000:01:00.0: firmware: failed to load 
nvidia/tu117/gsp/gsp-570.144.bin (-2)
[    5.859474] nouveau 0000:01:00.0: gsp: RM version: 535.113.01
[    5.933571] nouveau 0000:01:00.0: bios: version 90.17.76.00.0b
[    5.933739] nouveau 0000:01:00.0: vgaarb: deactivate vga console
[    7.289967] nouveau 0000:01:00.0: drm: VRAM: 2048 MiB
[    7.289969] nouveau 0000:01:00.0: drm: GART: 536870912 MiB
[    7.351117] nouveau 0000:01:00.0: drm: MM: using COPY for buffer copies
[    7.401098] nouveau 0000:01:00.0: [drm] Registered 4 planes with drm 
panic
[    7.401100] [drm] Initialized nouveau 1.4.0 for 0000:01:00.0 on minor 0
[    7.490617] fbcon: nouveaudrmfb (fb0) is primary device
[    7.726977] nouveau 0000:01:00.0: [drm] fb0: nouveaudrmfb frame 
buffer device
[    7.736515] nouveau 0000:01:00.0: drm: Disabling PCI power management 
to avoid bug
[    8.931552] snd_hda_intel 0000:01:00.1: bound 0000:01:00.0 (ops 
nv50_audio_component_bind_ops [nouveau])


I tried to manually install the missing firmware files, this failed with 
the GPU locking up as soon as the nouveau driver loaded. I had to use 
the internal GPU to boot and go in and delete the firmware files.

My question, why is it looking for the 570 firmware files?? but if they 
are loaded the system does not boot.

And also the the nouveau driver is disabling the PCI power management to 
avoid a bug


Some history, On Debian 12 I had to use the Nividia drivers because my 
computer would not boot with the nouveau drivers with 3 screens 
connected, See bug 1088522. This was fixed just as Debian 13 was coming 
out and was added to the security update as mentioned above. I am 
wondering if there needs to be some more optimization of the nouveau 
drivers to work with this GPU chipset.


Regards,

Benjamin

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Bug#1121192: kworker: Events_unbound, kworker processes, continually using CPU Benjamin Martin <benjamin@bmg7.com> - 2026-02-17 06:00 +0100

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