kernel-packages team mailing list archive

[Jeremy LaCroix <1488426@xxxxxxxxxxxxxxxxxx>]

HI guys, I'm being bit by this too in Ubuntu 15.10. I have a System76
Lemur (2015, Skylake) and one of my cores is always at 90% or above
usage, unless I plug in a USB device, in which case the problem goes
away.

I tried installing kernel 4.3 from the mainline repo, but with that
kernel, my system won't even boot at all.

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https://bugs.launchpad.net/bugs/1488426

Title:
  High CPU usage of kworker/ksoftirqd

Status in HWE Next:
  New
Status in linux package in Ubuntu:
  In Progress

Bug description:
  kworker consuming 71.5% cpu resource
  ksoftirqd consuming 28.9% cpu resource

  It leads to power consumption issue and sometimes leads to BT does not
  work.

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