Re: [PATCH 1/9] linux-user: Diagnose incorrect -R size

[Peter Maydell]

On Mon, 6 Mar 2023 at 02:14, Richard Henderson
<richard.henderson@linaro.org> wrote:
>
> Zero is the value for 'off', and should not be used with -R.
> We have been enforcing host page alignment for the non-R
> fallback of MAX_RESERVED_VA, but failing to enforce for -R.

I'm pretty sure we have users who specifically use "-R 0" to
ask for "definitely turn off any reserved VA".
Here's a random example from an old gcc bug report:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60681
and somebody using it via the environment variable:
https://www.openembedded.org/pipermail/openembedded-core/2015-January/100572.html

thanks
-- PMM