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BruceLee
 Post subject: shutdown error: FATAL: Error removing cpufreq_ondemand
Unread postPosted: Fri Feb 19, 2010 6:26 pm 
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at shutdown I get the follwoing error:
Code:
Disabling ondemand cpu frequency scaling: grsec: denied modification of module state by /sbin/modprobe[modprobe:4378] uid/euid:0/0 gid/egid:0/0, parent /etc/rc.d/init.d/cpuspeed[K99cpuspeed:4367] uid/euid:0/0 gid/egid:0/0
FATAL: Error removing cpufreq_ondemand (/lib/modules/2.6.29.6-1.art.x86_64/kernel/drivers/cpufreq/cpufreq_ondemand.ko): Operation not permitted

How to solve this?
What can I provide besides that to make diagnose easier?
Thanks
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mikeshinn
 Post subject: Re: shutdown error: FATAL: Error removing cpufreq_ondemand
Unread postPosted: Fri Feb 19, 2010 6:45 pm 
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You can ignore this. This means the kernel can't remove/add modules - which is exactly what you always want. Not removing the module won't hurt anything on reboot or shutdown.

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Atomicorp - Security For Everyone

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scott
 Post subject: Re: shutdown error: FATAL: Error removing cpufreq_ondemand
Unread postPosted: Fri Feb 19, 2010 6:45 pm 
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You'd have to enable kernel module loading at boot time. By default we turn that off as sort of a last line of defence against kernel module root kits.
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BruceLee
 Post subject: Re: shutdown error: FATAL: Error removing cpufreq_ondemand
Unread postPosted: Fri Feb 19, 2010 6:49 pm 
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i will ignore it. security first. :)

thanks for the quick reply.
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premierhosting
 Post subject: Re: shutdown error: FATAL: Error removing cpufreq_ondemand
Unread postPosted: Wed Mar 14, 2012 3:41 pm 
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Would it make sense to just disable cpuspeed on a server anyway?
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mikeshinn
 Post subject: Re: shutdown error: FATAL: Error removing cpufreq_ondemand
Unread postPosted: Wed Mar 14, 2012 8:06 pm 
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Quote:
Would it make sense to just disable cpuspeed on a server anyway?


I would, I'm not aware of any use for this on anything other than a laptop.

Plus, the new cpus that automatically overclock themselves do so automatically and dont need a daemon.

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Michael Shinn
Atomicorp - Security For Everyone

Co-Author of Troubleshooting Linux Firewalls.

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