21 Jan
2015
21 Jan
'15
1:06 p.m.
On Wed, 21 Jan 2015 10:47:37 +0000 Daniel Thompson daniel.thompson@linaro.org wrote:
With this patchset, is it possible to call sched_clock() from within NMI context? I ask because the generic sched_clock() code is not NMI safe
That's not good. Better not run function tracing, as that could trace functions in NMI context (I depend on that it does), and it uses sched_clock() as the default clock.
-- Steve
today. We were planning on making it NMI safe by doing something similar to what was done for ktime_get_mono_fast_ns() but we haven't gotten around to it. Mostly because no architecture that uses generic sched_clock() has support for NMIs right now.