On Fri, 5 Aug 2016 17:40:43 +0200 Sebastian Andrzej Siewior <bige...@linutronix.de> wrote:
> > Ah, this is when we have GENERIC_SCHED_CLOCK, which would break tracing > > if any arch that has this also has NMIs. Probably need to look at arm64. > > arm64 should use the generic code as they don't provide sched_clock() > (and I doubt they go for the weak jiffy version). And I'm guessing that arm64 supports NMIs. Is there no NMI safe clock? I probably need to look at the tracing code. Because you can have the same issue while tracing in an NMI as well. -- Steve
