lkml.org 
[lkml]   [2017]   [Feb]   [20]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: Bug#855183: linux-image-4.9.0-0.bpo.1-amd64: modprobe intel_rapl_perf stay in uninterruptible sleep
From
Date
Dne 17.02.2017 v 11:47 Thomas Gleixner napsal(a):
> What's really confusing is this information from the bug report:
>
> " When I changed:
>
> Power technology:
> - from Energy Efficient
> - to Custom
>
> Energy Performance BIAS Setting:
> - from Balanced Performance
> - to Performance
>
> problem disappeared. systemd-udevd starts normally, module can be
> normally rmmod/insmod'ed now, load is 0.07."
>
> Miloslav: Is there any chance you can try a 4.10-rc8 kernel on that
> machine?

I compiled 4.10-rc8 kernel with a stock
'/boot/config-4.9.0-0.bpo.1-amd64' config from Debian Jessie backports.
Then I reverted BIOS settings to previous state and rebooted the server.
Kernel and all modules loaded normally, rmmod/insmod intel_rapl_perf
passed normally.

Then, without any BIOS change, I rebooted with stock 4.9.0-0.bpo.1-amd64
and suprisingly, everything works, I cannot reproduce it.

My knowledge on the field of BIOS are shallow. I don't know what I can
do to reproduce the bug now.

King redards, Miloslav

\
 
 \ /
  Last update: 2017-02-20 23:35    [W:0.069 / U:0.324 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site