Date: Wed, 9 Jun 2010 12:14:53 +0400 From: Ilya Bakulin <webmaster@kibab.com> To: freebsd-hackers@freebsd.org Subject: GSoC: registration of optional kernel features via sysctl: a question to the community Message-ID: <20100609121453.095d92b4@kibab.com>
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[-- Attachment #1 --] Hi hackers! While discussing my project's implementation details with my mentor, Alexander Leidinger, we've found that one of the ideas needs to be discussed with community, to find out possible use cases. That is, if it should be possible to spoof non-existing features. For example, if currently running kernel doesn't support FreeBSD 5.0 compat layer, "kern.features.compat_freebsd5" will be absent when querying features list. The question is -- are there any cases when we want "kern.features.compat_freebsd5" be present? If some feature is not in kernel, then presenting its existence to the userland is useless and may be even harmful, if, for example, some application relies on this feature. Or there are some scenarios where such cheat is useful? -- Regards, Ilya Bakulin http://kibab.com xmpp://kibab612@jabber.ru [-- Attachment #2 --] -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.14 (FreeBSD) iEYEARECAAYFAkwPTYcACgkQo9vlj1oadwinjACgqlgRxr7FxcbwfuSfauxLSANf mgsAoJhc97LJcb7TLQMb0oZY49xOVDn/ =ZWP2 -----END PGP SIGNATURE-----
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