On Tue, 11 Apr 2017 18:54:35 -0400 Steven Rostedt <[email protected]> wrote:
> From: "Steven Rostedt (VMware)" <[email protected]> > > The trace_event benchmark thread runs in kernel space in an infinite loop > while also calling cond_resched() in case anything else wants to schedule > in. Unfortunately, on a PREEMPT kernel, that makes it a nop, in which case, > this will never voluntarily schedule. That will cause synchronize_rcu_tasks() > to forever block on this thread, while it is running. > > This is exactly what cond_resched_rcu_qs() is for. Use that instead. > > Cc: "Paul E. McKenney" <[email protected]> This actually should be: Recommended-by: "Paul E. McKenney" <[email protected]> -- Steve > Signed-off-by: Steven Rostedt (VMware) <[email protected]> > ---
