From: Andries Brouwer <aebr@win.tue.nl>
To: Timothy Miller <miller@techsource.com>
Cc: Tim Schmielau <tim@physik3.uni-rostock.de>,
Patrick Moor <pmoor@netpeople.ch>,
lkml <linux-kernel@vger.kernel.org>,
george anzinger <george@mvista.com>
Subject: Re: time jumps (again)
Date: Thu, 7 Aug 2003 02:29:31 +0200 [thread overview]
Message-ID: <20030807002931.GA5454@win.tue.nl> (raw)
In-Reply-To: <3F314603.7050907@techsource.com>
On Wed, Aug 06, 2003 at 02:16:35PM -0400, Timothy Miller wrote:
> Is there any way the kernel could detect clock problems like drift and
> jumps by comparing the effects of different timers? And when a problem
> is detected, it can correct the situation automatically.
In this particular case, I think my stopgap
if ((long) usec < 0)
usec = 0;
would suffice to eliminate the jumps.
Of course it would be better to understand the hardware details,
but perhaps we are insufficiently documented.
next prev parent reply other threads:[~2003-08-07 0:30 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-08-04 16:35 time jumps (again) Patrick Moor
2003-08-04 16:37 ` Alan Cox
2003-08-04 21:49 ` Tim Schmielau
2003-08-04 22:38 ` george anzinger
2003-08-05 1:08 ` Andries Brouwer
2003-08-06 18:16 ` Timothy Miller
2003-08-06 18:55 ` George Anzinger
2003-08-07 0:29 ` Andries Brouwer [this message]
2003-08-05 10:32 ` Jan Niehusmann
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