From: Andrew Morton <andrewm@uow.edu.au>
To: Pavel Machek <pavel@suse.cz>
Cc: Hacksaw <hacksaw@hacksaw.org>,
Tom Eastep <teastep@seattlefirewall.dyndns.org>,
linux-kernel@vger.kernel.org
Subject: Re: [OT] Major Clock Drift
Date: Sun, 11 Feb 2001 22:05:35 +1100 [thread overview]
Message-ID: <3A8671FF.C390FDCC@uow.edu.au> (raw)
In-Reply-To: <Pine.LNX.4.30.0102040908320.877-100000@wookie.seattlefirewall.dyndns.org> <200102041804.f14I4br22433@habitrail.home.fools-errant.com> <3A7EA9B3.3507DC8D@uow.edu.au>, <3A7EA9B3.3507DC8D@uow.edu.au>; from Andrew Morton on Tue, Feb 06, 2001 at 12:25:07AM +1100 <20010210225851.G7877@bug.ucw.cz>
Pavel Machek wrote:
>
> Hi!
>
> > > >I've discovered that heavy use of vesafb can be a major source of clock
> > > >drift on my system, especially if I don't specify "ypan" or "ywrap". On my
> > >
> > > This is extremely interesting. What version of ntp are you using?
> >
> > Is vesafb one of the drivers which blocks interrupts for (many) tens
> > of milliseconds?
>
> Vesafb is happy to block interrupts for half a second.
And has this been observed to cause clock drift?
-
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next prev parent reply other threads:[~2001-02-11 10:57 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-02-04 4:32 [OT] Major Clock Drift Josh Myer
2001-02-04 4:42 ` Manfred Bartz
2001-02-04 12:56 ` Michael B. Trausch
2001-02-04 15:18 ` Steve Underwood
2001-02-04 15:31 ` Hacksaw
2001-02-04 23:46 ` Alan Chandler
2001-02-04 17:18 ` Tom Eastep
2001-02-04 18:04 ` Hacksaw
2001-02-04 18:07 ` Tom Eastep
2001-02-05 13:25 ` Andrew Morton
2001-02-10 21:58 ` Pavel Machek
2001-02-11 11:05 ` Andrew Morton [this message]
2001-02-11 11:06 ` Pavel Machek
2001-02-11 11:47 ` Andrew Morton
2001-02-11 12:14 ` Peter Horton
2001-02-11 13:52 ` Chris Wedgwood
2001-02-05 1:18 ` Michael B. Trausch
2001-02-13 3:00 ` george anzinger
2001-02-13 6:51 ` Josh Myer
2001-02-10 21:58 ` [OT] " Pavel Machek
2001-02-11 17:07 ` Alan Cox
2001-02-11 22:29 ` Andrew Morton
2001-02-12 9:48 ` Alan Cox
2001-02-12 10:05 ` Andi Kleen
2001-02-12 10:10 ` Alan Cox
2001-02-12 12:14 ` James Sutherland
2001-02-12 10:32 ` Pavel Machek
2001-02-12 10:36 ` Alan Cox
2001-02-12 11:38 ` Andrew Morton
2001-02-13 7:24 ` Abramo Bagnara
2001-02-10 21:55 ` Pavel Machek
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