Date: Mon, 17 Feb 2003 07:19:43 +0100 From: phk@phk.freebsd.dk To: Bruce Evans <bde@zeta.org.au> Cc: Kris Kennaway <kris@obsecurity.org>, current@FreeBSD.ORG Subject: Re: Clock disabled during DDB Message-ID: <93196.1045462783@critter.freebsd.dk> In-Reply-To: Your message of "Mon, 17 Feb 2003 16:29:06 %2B1100." <20030217155320.N4682-100000@gamplex.bde.org>
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In message <20030217155320.N4682-100000@gamplex.bde.org>, Bruce Evans writes: >The >piix timecounter has a lower frequency than the TSC, but for some >reason we mask it to 24 bits (16M cycles @ 3.5+ MHz = 4+ seconds). We do this because the spec defines it as either 32 or 24 bit and some 24 bit implementations claim to have 32 bits. -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 phk@FreeBSD.ORG | TCP/IP since RFC 956 FreeBSD committer | BSD since 4.3-tahoe Never attribute to malice what can adequately be explained by incompetence. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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