In the 2.6 kernel, the numerical sysctl interface is obsoleted (the /proc/sys interface is supposed to be used instead) - see http://marc.theaimsgroup.com/?t=105788803400003&r=1&w=2 When running ksysguard, I see "ksysguardd: numerical sysctl 7 2 1 is obsolete." messages in my kernel log. Also filed upstream as http://bugs.kde.org/show_bug.cgi?id=75688
i'm closing this as "NOTABUG", please take a look at http://bugs.kde.org/show_bug.cgi?id=75688