Re: [PATCH v10 clocksource 1/7] clocksource: Provide module parameters to inject delays in watchdog

[Paul E. McKenney]

On Mon, Apr 26, 2021 at 10:56:27AM -0700, Andi Kleen wrote:
> > ------------------------------------------------------------------------
> > 
> > - module parameters
> > 
> >   If the scope of the fault injection capability is limited to a
> >   single kernel module, it is better to provide module parameters to
> >   configure the fault attributes.
> > 
> > ------------------------------------------------------------------------
> > 
> > And in this case, the fault injection capability is in fact limited to
> > kernel/clocksource.c.
> 
> 
> I disagree with this recommendation because it prevents fuzzer coverage.
> 
> Much better to have an uniform interface that can be automatically
> explored.

The permissions for these module parameters is 0644, so there is no
reason why the fuzzers cannot use them via sysfs.

							Thanx, Paul