Re: [PATCH 3/3] vsprintf: Add use-early-random-bytes cmd line option

[Andrew Morton]

On Wed,  2 May 2018 09:33:40 +1000 "Tobin C. Harding" <me@xxxxxxxx> wrote:

> Currently if an attempt is made to print a pointer before there is
> enough entropy then '(____ptrval____)' is printed.  This makes debugging
> early stage stack traces difficult.  We can relax the requirement for
> cryptographically secure hashing when debugging while still maintaining
> pointer hashing behaviour.
> 
> Add a command line option 'use-early-random-bytes'.  When enabled get
> key material from the hw RNG if available.

Documentation/admin-guide/kernel-parameters.rst, please.

> This option should NOT be enabled on production kernels.

And the documentation should explain why this recommendation is made. 
Here was I scratching my head wondering why this feature isn't just
permanently enabled.  Still scratching away...