On Thu, 18 Apr 2019 17:43:59 +0200 (CEST) Thomas Gleixner <tglx@xxxxxxxxxxxxx> wrote: > On Thu, 18 Apr 2019, Steven Rostedt wrote: > > On Thu, 18 Apr 2019 10:41:40 +0200 > > Thomas Gleixner <tglx@xxxxxxxxxxxxx> wrote: > > > -static DEFINE_PER_CPU(struct ftrace_stack, ftrace_stack); > > > +/* This allows 8 level nesting which is plenty */ > > > > Can we make this 4 level nesting and increase the size? (I can see us > > going more than 64 deep, kernel developers never cease to amaze me ;-) > > That's all we need: > > > > Context: Normal, softirq, irq, NMI > > > > Is there any other way to nest? > > Not that I know, but you are the tracer dude :) > There's other places I only test 4 deep, so it should be fine to limit it to 4 then. Thanks! -- Steve
