Messages in this thread | | | Subject | Re: Bug#855183: linux-image-4.9.0-0.bpo.1-amd64: modprobe intel_rapl_perf stay in uninterruptible sleep | From | Miloslav Hůla <> | Date | Mon, 20 Feb 2017 23:34:12 +0100 |
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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
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