> > --- work-fault-inject.orig/lib/Kconfig.debug
> > +++ work-fault-inject/lib/Kconfig.debug
> > @@ -472,6 +472,8 @@ config LKDTM
> >
> > config FAULT_INJECTION
> > bool
> > + select STACKTRACE
> > + select FRAME_POINTER
> >
> > config FAILSLAB
> > bool "fault-injection capabilitiy for kmalloc"
> >
>
> Is the selection of FRAME_POINTER really needed? The fancy new unwinder
> is supposed to be able to handle frame-pointerless unwinding?
As I wrote in another reply, There are two type of implementation of
this stacktrace filter.
- using STACKTRACE + FRAME_POINTER
- using new unwinder (STACK_UNWIND)
The stacktrace with using new unwinder without FRAME_POINTER is much
slower than STACKTRACE + FRAME_POINTER.