On Wednesday 2021-08-25 07:53, Jiri Slaby wrote:
On 24. 08. 21, 17:42, Peter Suetterlin wrote:
I just upgraded my laptop (Lenovo T470p) to latest TW 20210820, including kernel 5.13.12.
Now I have a permanent kworker process running at full load:
27615 root 20 0 0 0 0 R 99.00 0.000 5:49.23 kworker/u16:3+events_unbound
Is there a way to find out what exactly it is related with?
Hi,
what's the output of: cat /proc/27615/stack ? (Change 27615 to whatever PID the kworker currently has.)
As an aside, under 5.13.8, when I do some I/O with btrfs, these processes shoot to the top with /usr/bin/top: 32110 root 20 0 0 0 0 I 24.75 0.000 0:03.32 kworker/u16:7-btrfs-worker 4736 root 20 0 0 0 0 I 22.77 0.000 0:00.31 kworker/u16:5-btrfs-worker 5097 root 20 0 0 0 0 I 6.931 0.000 0:00.07 kworker/u16:15-flush-btrfs-1 So it's already obvious they are associated with btrfs. But perhaps that is not the case with rebalance (I don't have a suitably large fs at hand ATM); if not, can it be made so? Or is the events_unbound queue kind of a problem here..