linux-kernel - Problem with cpufreq and i5 since post 3.9.0

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-ID: <20131227185924.GH17115@Blackswan>
Date:	Fri, 27 Dec 2013 18:59:25 +0000
From:	David Woodfall <dave@...oodfall.net>
To:	linux-kernel@...r.kernel.org
Subject: Problem with cpufreq and i5 since post 3.9.0

I recently upgraded from 3.9.0 to 3.10.17 and found that I don't have
the same cpufreq governors available. I also tested with 3.12.6 and
3.13.0_rc5 with the same results.

3.9.0 tells me:
cat /sys/devices/system/cpu/*/cpufreq/scaling_available_governors
conservative ondemand powersave userspace performance
conservative ondemand powersave userspace performance
conservative ondemand powersave userspace performance
conservative ondemand powersave userspace performance

But any of the newer kernel versions I've tested only give me
performance and powersave.

I have selected userspace as default governor and all other governors
as built-in on all versions.

I need to either be able to use performance or use userspace and set 
for the max frequency. This is for an old application that tries to
detect cpu speed, but fails because it is from the days before 
scaling.

Can anyone tell me what I need to do with these newer kernels?

Regards

-Dave

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/