Re: bizarre 2.6.8.1 /sys permissions
From: Dan Hollis
Date: Wed Aug 25 2004 - 18:37:32 EST
> > $ cat /sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_cur_freq
> > cat: /sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_cur_freq: Permission denied
> Reading this file causes reads from hardware on some cpufreq drivers.
> This can be a slow operation, so a user could degrade system performance
> for everyone else by repeatedly cat'ing it.
any reason why cpuinfo_cur_freq cant read cpu_khz ?
or rather, is there any reason why cpuinfo_cur_freq and /proc/cpuinfo
should legitimately differ?
-Dan
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