From: Matthias Andree <matthias.andree@stud.uni-dortmund.de>
To: Linux kernel mailing list <linux-kernel@vger.kernel.org>
Subject: Re: Linux 2.2.18: /proc/apm slows system time (was: Linux 2.2.19pre3)
Date: Wed, 3 Jan 2001 23:02:04 +0100 [thread overview]
Message-ID: <20010103230204.C15394@emma1.emma.line.org> (raw)
In-Reply-To: <20010102173233.C1846@emma1.emma.line.org> <E14DVHY-0002ZE-00@the-village.bc.nu>
In-Reply-To: <E14DVHY-0002ZE-00@the-village.bc.nu>; from alan@lxorguk.ukuu.org.uk on Tue, Jan 02, 2001 at 17:31:29 +0000
On Tue, 02 Jan 2001, Alan Cox wrote:
> The TSC one is fairly sane, the CMOS gets messy because host and CMOS time
> are not always the same
The idea is to read out the CMOS clock before and after polling the
BIOS, hoping that the BIOS would not tamper with the CMOS time. However,
thinking more elaborately, I think, CMOS is limited to 1 s, so the
granularity will make the whole thing pretty vain.
--
Matthias Andree
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next prev parent reply other threads:[~2001-01-03 22:02 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2000-12-22 0:52 Linux 2.2.19pre3 Alan Cox
2000-12-22 3:40 ` Mitch Adair
2000-12-22 15:32 ` Petri Kaukasoina
2000-12-22 15:53 ` Richard B. Johnson
2000-12-22 16:02 ` Chad Schwartz
2000-12-22 16:23 ` Alan Cox
2000-12-22 16:25 ` Chad Schwartz
2000-12-22 16:43 ` Richard B. Johnson
2000-12-22 17:54 ` Miquel van Smoorenburg
2000-12-22 18:13 ` Richard B. Johnson
2000-12-22 16:21 ` Alan Cox
2000-12-22 19:33 ` Petri Kaukasoina
2000-12-22 19:56 ` Andrea Arcangeli
2000-12-23 12:05 ` Willy Tarreau
2000-12-28 1:18 ` Matthias Andree
2000-12-28 2:37 ` Alan Cox
2000-12-28 10:23 ` Matthias Andree
2000-12-28 12:20 ` Alan Cox
2000-12-28 13:53 ` Linux 2.2.18: /proc/apm slows system time (was: Linux 2.2.19pre3) Matthias Andree
2000-12-28 14:14 ` Matthias Andree
2000-12-29 12:42 ` Erik Mouw
2000-12-30 12:39 ` Matthias Andree
2000-12-30 17:01 ` Alan Cox
2000-12-30 17:38 ` Erik Mouw
2000-12-30 17:50 ` Alan Cox
2000-12-30 17:39 ` Matthias Andree
2000-12-31 10:34 ` Matthias Andree
2000-12-31 11:28 ` Chris Wedgwood
2000-12-31 13:32 ` Alan Cox
2001-01-02 13:52 ` [PATCH] CMOS locking for 2.4 (was: /proc/apm slows system time) Paul Gortmaker
2000-12-31 13:37 ` Linux 2.2.18: /proc/apm slows system time (was: Linux 2.2.19pre3) Alan Cox
2000-12-31 15:50 ` Erik Mouw
2000-12-31 16:13 ` Alan Cox
2001-01-02 16:32 ` Matthias Andree
2001-01-02 17:31 ` Alan Cox
2001-01-03 22:02 ` Matthias Andree [this message]
2000-12-28 11:14 ` Linux 2.2.19pre3 Guest section DW
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