Re: thousands of kworker processes with 4.7.x and 4.8-rc*

From: Tomasz Chmielewski
Date: Mon Sep 26 2016 - 23:50:12 EST

On 2016-09-26 04:07, Nikolay Borisov wrote:

Not sure if that's expected behaviour or not.

Why don't you sample the stacks of some of those kworker processes to
see if they are all executing a parituclar piece of work. That might
help you narrow down where they originate from. Cat multiple
/proc/$kworker-pid/stack files and see if a pattern emerges.

FYI, it was reproduced and bisected here (scroll to the bottom):

Tomasz Chmielewski