Re: objtool warning for next-20221118

From: Peter Zijlstra
Date: Mon Nov 21 2022 - 06:36:14 EST


On Sun, Nov 20, 2022 at 08:07:36PM -0800, Paul E. McKenney wrote:
> Hello!
>
> I have started getting this from rcutorture scenario TREE09:
>
> vmlinux.o: warning: objtool: do_idle+0x25f: unreachable instruction
>
> Should I be worried?

Typically not a scary warning that.

> If so, please let me know what additional information you need.

.config and compiler version so that I might recreate and observe what
it's complaining about would help :-)