*** This bug is a duplicate of bug 2037214 ***
https://bugs.launchpad.net/bugs/2037214
Having this issue too.
For me the easiest way to reproduce it is to trigger btrfs balance and wait a
minute or two, no other workloads running.
root@build01:~# lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 24.04 LTS
Release: 24.04
Codename: noble
Fully updated, running the latest available kernel
Linux build01 6.8.0-36-generic #36-Ubuntu SMP PREEMPT_DYNAMIC Mon Jun 10
10:49:14 UTC 2024 x86_64 x86_64 x86_64 GNU/Linux
FWIW I haven't noticed this issue on any arch kernels running on similar setup
and platform (btrfs data single, meta mirror, on nvmes amd 5950x).
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https://bugs.launchpad.net/bugs/2038492
Title:
workqueue: inode_switch_wbs_work_fn hogged CPU for >10000us 16 times,
consider switching to WQ_UNBOUND
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