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):
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1626564
Tomasz Chmielewski
https://lxadm.com