v2 had issues on -tip tree and triggered a warning. It seems to have disappeared. Perhaps it was due to another timer issue. Anyway this version brings more debugging informations, with a layout that is more bisection-friendly and it also handles ticks that fire outside IRQ context and thus carry NULL irq regs. This happen when hrtimer_interrupt() is called on hotplug cpu down for example. We'll see if the issue arises again. git://git.kernel.org/pub/scm/linux/kernel/git/frederic/linux-dynticks.git nohz/fixes HEAD: cd15f46b284f04dbedd065a9d99a4e0badae379a Thanks, Frederic --- Frederic Weisbecker (2): nohz: Add hrtimer sanity check nohz: Fix collision between tick and other hrtimers, again kernel/time/tick-sched.c | 48 +++++++++++++++++++++++++++++++++++++++++++----- kernel/time/tick-sched.h | 2 ++ 2 files changed, 45 insertions(+), 5 deletions(-)