[Bug 241710] please increase ARG_MAX

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=241710

John Baldwin <jhb at FreeBSD.org> changed:

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                 CC|                            |jhb at FreeBSD.org

--- Comment #18 from John Baldwin <jhb at FreeBSD.org> ---
Perhaps we could just let the ARM folks figure out if there is a problem and if
so they can add an #ifdef?  On a quad-core ARMv7 (e.g. my RPi), doubling
ARG_MAX would use an additional 2MB of KVA (256K * (2 * 4 CPUs)).  I don't know
if we have any non-terrible ways to see the kernel_map.  I have some gdb
scripts that I've only tested on amd64 but do handle submaps.  I thought we had
a hack to export the kernel map via pid 0 for procstat -v, but that doesn't
seem to work for me.

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