Re: [patch V6 00/37] x86/entry: Rework leftovers and merge plan

[Thomas Gleixner]

Peter Zijlstra <peterz@xxxxxxxxxxxxx> writes:
> So on top of you entry-v8-full; I had to chase one of those
> instrumentation_end() escapes an (extended) basic block chase (again!).
>
> --- a/arch/x86/include/asm/bug.h
> +++ b/arch/x86/include/asm/bug.h
> @@ -79,8 +79,8 @@ do {								\
>  do {								\
>  	instrumentation_begin();				\
>  	_BUG_FLAGS(ASM_UD2, BUGFLAG_WARNING|(flags));		\
> -	instrumentation_end();					\
>  	annotate_reachable();					\
> +	instrumentation_end();					\
>  } while (0)

I just applied this part and rebuilt:

 vmlinux.o: warning: objtool: rcu_eqs_enter.constprop.77()+0xa9: call to
 rcu_preempt_deferred_qs() leaves .noinstr.text section

Did it go away after you disabled DEBUG_ENTRY perhaps?