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[lpuser <1488426@xxxxxxxxxxxxxxxxxx>]

I downloaded the sources for the 3.19.0-43-generic kernel (Ubuntu 14.04.3).
Then I applied this patch:
*http://linux-kernel.2935.n7.nabble.com/TESTPATCH-v2-xhci-fix-usb2-resume-timing-and-races-td1250796.html
<http://linux-kernel.2935.n7.nabble.com/TESTPATCH-v2-xhci-fix-usb2-resume-timing-and-races-td1250796.html>*

I haven't experienced any issues so far with the new patched kernel.

Any idea when this patch will hit the official Ubuntu 14.04.3 kernel?

2016-01-23 17:45 GMT+02:00 Ekimia <contact@xxxxxxxxx>:

> Hi Jerely , 16.04-proposed is still 4.3 and does not fix the problem.
>
>
> As you swaw, Official fix is in 4.4 and 16.04 will includ  4.4, so
> official fix may be only available in april, or canonical should push the
> fix to 4.2 which might be difficult.
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1488426
>
> Title:
>   High CPU usage of kworker/ksoftirqd
>
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/hwe-next/+bug/1488426/+subscriptions
>

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You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
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.

To manage notifications about this bug go to:
https://bugs.launchpad.net/hwe-next/+bug/1488426/+subscriptions