On Wed, 21 Oct 2015 10:01:42 +0200 Peter Zijlstra <[email protected]> wrote:
> > I should probably add a "if (in_nmi()) return" somewhere. > > But if there's an arch that doesn't use a separate NMI stack, the NMI > might cause the largest stack, which would then remain invisible from > the stack-tracer. > > Should we not instead fix the NMI-safety of this tracer? We could, but that should be a separate project, as that would require doing everything lockless, which would require a redesign. Is that worth it? For now, the safe thing to do is the if (in_nmi()), but certainly, if someone gets time to make it NMI safe, we can do that too. -- Steve -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
