Date: Tue, 6 Apr 2004 01:12:52 -0700 From: Kris Kennaway <kris@obsecurity.org> To: Artem Koutchine <matrix@itlegion.ru> Cc: freebsd-current@freebsd.org Subject: Re: Qustion about being "Giant-locked" Message-ID: <20040406081251.GA45600@xor.obsecurity.org> In-Reply-To: <001f01c41bab$ae842570$0c00a8c0@artem> References: <20040406071205.GA2819@frontfree.net> <001f01c41bab$ae842570$0c00a8c0@artem>
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--TB36FDmn/VVEgNH/ Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Tue, Apr 06, 2004 at 11:49:20AM +0400, Artem Koutchine wrote: > >> While booting i see many drivers marked > >> as [Giant-locked]. > >> Is being Giant-locked good or bad what are the > >> implications? > >It's not good if you have a computer with multiple processors. >=20 > Well, i do have dual xeon with HT (4 logical CPUs). Is there > any way to fight giant-locked drivers or i just have to wait > until the driver will be rewritten w/o Giant? Or there are > some kernel options to disable Giant lock in the drivers? "Giant lock" isn't a feature that can be enabled or disabled, it indicates that the driver code is not yet ready to be run without Giant. Locking work is a major focus of development in the 5.x branch, but as you can see it's not finished yet. Kris --TB36FDmn/VVEgNH/ Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.4 (FreeBSD) iD8DBQFAcmaCWry0BWjoQKURAi6hAKDZR7GW3+SVTCaxLHcEeXuAIXEr6wCcDnvQ pRae3detHEFsLXRG4hmbdkE= =3XrR -----END PGP SIGNATURE----- --TB36FDmn/VVEgNH/--
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