I believe the problem is solved. Please see discussion under http://marc.info/?t=144408210900002&r=1&w=2 specifically the message http://marc.info/?l=linux-kernel&m=144459727213633&w=2
and quoting from there: I believe I have now solved the problem, simply by setting: ... for n in /proc/sys/kernel/sched_domain/cpu*/dom*/min_interval; do echo 0 > $n; done for n in /proc/sys/kernel/sched_domain/cpu*/dom*/max_interval; do echo 1 > $n; done echo 1000000000 > /proc/sys/kernel/sched_latency_ns echo 100000 > /proc/sys/kernel/sched_min_granularity_ns echo 10000 > /proc/sys/kernel/sched_wakeup_granularity_ns Please close this bug (as "solved" or "user config issue" or "invalid"). Sorry about the noise... Cheers, Paul Paul Szabo p...@maths.usyd.edu.au http://www.maths.usyd.edu.au/u/psz/ School of Mathematics and Statistics University of Sydney Australia