Kernel: NOHZ tick-stop error: local softirq work is pending, handler

IncusOS
1

Hello from a happy IncusOS user,

my first post…

I had an incusOS system that one moment was not responding, not sure if it had to do with these error messages:

incus admin os debug log -b -0 | grep -Ei ‘error’

[2026/10/12 09:45:06 CEST] kernel: ACPI BIOS Error (bug): Could not resolve symbol [\_SB.PC00.LPCB.HEC.DPTF.FCHG], AE_NOT_FOUND (20260408/psargs-365)

[2026/10/12 09:45:06 CEST] kernel: ACPI Error: Aborting method \_SB.IETM.CHRG.PPSS due to previous error (AE_NOT_FOUND) (20260408/psparse-543)

[2026/10/12 09:45:14 CEST] kernel: ucsi_acpi USBC000:00: error -ETIMEDOUT: PPM init failed

[2026/10/12 09:45:28 CEST] incusd: time=“2026-10-12T09:45:28+02:00” level=error msg=“Failed writing error for HTTP response” err=“write unix /var/lib/incus/unix.socket->@: write: broken pipe” url=/1.0 writeErr=“write unix /var/lib/incus/unix.socket->@: write: broken pipe”

[2026/10/12 09:45:32 CEST] incus-osd: 2026-10-12 09:45:32 ERROR Failed to run: systemctl start incus.socket incus-lxcfs.service incus-startup.service incus.service: exit status 1 (Job for incus-startup.service failed because a fatal signal was delivered to the control process.

[2026/10/12 11:20:38 CEST] kernel: NOHZ tick-stop error: local softirq work is pending, handler #200!!!

[2026/10/12 12:16:33 CEST] kernel: NOHZ tick-stop error: local softirq work is pending, handler #80!!!

[2026/10/12 12:35:48 CEST] kernel: NOHZ tick-stop error: local softirq work is pending, handler #80!!!

[2026/10/12 13:35:08 CEST] kernel: NOHZ tick-stop error: local softirq work is pending, handler #200!!!

[2026/10/12 14:02:28 CEST] kernel: NOHZ tick-stop error: local softirq work is pending, handler #200!!

and more of the same

Device: ASUS NUC

incus admin os info
OS: IncusOS 202610041640

Processor: Intel(R) Core™ Ultra 7 155H (numa=1, sockets=1, cores=16, threads=22) (x86_64)

Memory: 32GiB

Network:

enp86s0: 192.168.31.23, 2a10:3781:c74:1:8aae:ddff:fe67:59b

Applications:

gpu-support (20260916 [202610041640])

incus-lts-7.0 (7.0.1 [202610041640])

System was running fine for a long time. I was adding GPU and NPU passthrough to a Debian 13 VM

Got both of them working, next day incus list was working, incus stop VM, no reponse from IncusOS anymore. After a reboot everything worked fine again.

Now I am a bit puzzled what the the error messages are about and if this is due to the passthrough.

One thing I saw was the missing quotes at the 2nd pci_address

incus admin os system kernel show

config:

pci:

passthrough:

  - pci_address: '0000:00:02.0'

    product_id: 7d55

    vendor_id: "8086"

  - pci_address: 0000:00:0b.0

    product_id: 7d1d

    vendor_id: "8086"

state: {}

Anyway, all above info could be unrelated, I need to start somewhere. System is working, only see error messages in the log

Thanks,

Ton.