chroot/aarch64 issues

[Efraim Flashner]

On the side I'm working on the aarch64 port, and I've come across a
snag. I've been unable to actually get anything to build. When I start
the daemon as:
`sudo ./pre-inst-env guix-daemon --build-users-group=guixbuild',
when I attempt to build hello I get back the error:
guix build: error: build failed: cloning builder process: Invalid argument

When I launch the guix-daemon with --disable-chroot then it works, but
that's not The Right Way™. I've attached the results of `make test' (I
think its the full results, don't remember if I stopped it part-way), an
strace of `./pre-inst-env guix build hello', and in case its needed the
kernel config of the kernel I built on the machine, with the addons from
linux.scm that are appended to the bottom of guix's kernel config.

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test-suite.log.bz2
Description: Binary data

guix-build-hello-strace.bz2
Description: Binary data

kernel.config
Description: Text document

signature.asc
Description: PGP signature