* Francis Giraldeau | 2016-07-29 16:56:15 [-0400]:

It seems that the timer tick occurs with a PREEMPT_RT kernel even if configured
with NO_HZ_FULL. On a real-time system where some cores are configured with

correct.

…

This commit is quite old, maybe a solution exists to the problem of base timer
locking. Would it be possible for instance to use RCU instead here to support
NO_HZ_FULL with a PREEMPT_RT kernel?

Unfortunately RCU can't fix everything in its own magical way. But there
is hope! Since v4.6.4-rt8 we have NO_HZ_FULL working thanks to the timer
wheel rework.

Thanks,

Francis

Sebastian