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From: David Balazic <david.balazic@uni-mb.si>
To: linux-kernel@vger.kernel.org
Subject: Wrong clock initialization
Date: Tue, 20 May 2003 19:34:55 +0200	[thread overview]
Message-ID: <3ECA673F.7B3FB388@uni-mb.si> (raw)

Hi!

When the kernel is booted ( ia32 version at least ) , it reads
the time from from the hardware CMOS clock , _assumes_ it is in
UTC and set the system time to it.

As almost nobody runs their clock in UTC, this means that the system
is running on wrong time until some userspace tool corrects it.

This can lead to situtation when time goes backwards :

timezone is 2hours east of UTC.
UTC time : 20:00
local time : 22:00

System time between boot and userspace fix : 22:00UTC
System time after fix : 20:00UTC

Comments ?


-- 
David Balazic
--------------
"Be excellent to each other." - Bill S. Preston, Esq., & "Ted" Theodore
Logan
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             reply	other threads:[~2003-05-20 17:22 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-05-20 17:34 David Balazic [this message]
2003-05-20 18:08 ` Wrong clock initialization David D. Hagood
2003-05-20 18:10 ` george anzinger
2003-05-20 18:27   ` David Balazic
2003-05-20 20:21     ` george anzinger
2003-05-20 18:17 ` Michael Buesch
2003-05-20 18:26   ` David Balazic
2003-05-20 20:16 ` Jan Harkes
2003-05-21 11:38 ` Jesse Pollard
2003-05-21 17:00 ` Jerry Cooperstein

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