pam_start should not be called from inside chroot in start-stop-daemon

[sijanec]

This is a followup to a PR I made regarding this issue, and I'd like to hear some comment.

In Gentoo's OpenRC (very close to upstream), pam_start(3) is called after chroot(2), so the process is unable to find the files required for PAM, as you can see on this strace output with unmodified start-stop-daemon: http://of.sijanec.eu/krneki/strace.txt

With a modified start-stop-daemon, chroot is correctly executed after pam_start and services utilizing --chroot option work.

On current release, --chroot is broken unless PAM files are mounted in the chroot, which might even be a security issue.

Related PR is #517, #517

[sijanec]

Closing issue that was created due to a duplicate POST request, likely due to slow internet connection on submitter side.

[sijanec]

P. S.: See issue #543 - this one is still open. Again, sorry for the duplicate and confusion.