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From: Benjamin Herrenschmidt <bh40@calva.net>
To: Martin Costabel <costabel@wanadoo.fr>,
	<linuxppc-dev@lists.linuxppc.org>,
	Iain Sandoe <iain@sandoe.co.uk>
Subject: Re: rtc again...
Date: Thu, 3 Aug 2000 11:30:49 +0200	[thread overview]
Message-ID: <20000803093049.3478@mailhost.mipsys.com> (raw)
In-Reply-To: <398934C7.663E6BD9@wanadoo.fr>


>I am using it as module both for 2.2.17-bk and for 2.4.0-test5. They
>don't give the same time, and I think it is the one in 2.4.0 that is
>right. I am at GMT+2:00, and the time in 2.2.17 is 2 hours early. When I
>change /etc/sysconfig/clock from "UTC=false" to "UTC=true", both times
>shift by 2 hours, but the discrepancy remains.
>
>The following patch for bitkeeper linuxppc_2_2 fixes this problem for
>me. It brings 2.2.17pre13 in line with 2.4.0-test5 (and MacOS). I cannot
>test the VIAPMU part, so maybe there the offset is necessary, but for
>the VIACUDA part, it seems wrong.

You patch reverts a fix I made some time ago. Basially, what probably
happens is that your RTC is in UTC time, not in local time. The Mac RTC
is supposed to be in local time, the offset corrects the kernel time on
boot to account for this. Previously, without that fix, the kernel used
to boot with a bogus UTC time until userland fixes it.

Ben.


** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/

  reply	other threads:[~2000-08-03  9:30 UTC|newest]

Thread overview: 64+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2000-08-02 22:48 rtc again Iain Sandoe
2000-08-03  9:00 ` Martin Costabel
2000-08-03  9:30   ` Benjamin Herrenschmidt [this message]
2000-08-03 10:54     ` Gabriel Paubert
2000-08-03 11:14       ` Benjamin Herrenschmidt
2000-08-03 11:25         ` Gabriel Paubert
2000-08-03 11:45         ` Gabriel Paubert
2000-08-03 13:25           ` Benjamin Herrenschmidt
2000-08-03 23:33       ` Takashi Oe
2000-08-04  8:55         ` Gabriel Paubert
2000-08-04 15:25           ` David Edelsohn
2000-08-04 15:50             ` Benjamin Herrenschmidt
2000-08-07 12:33               ` Gabriel Paubert
2000-08-07 11:51             ` Gabriel Paubert
2000-08-07 13:18               ` Benjamin Herrenschmidt
2000-08-07 15:14               ` David Edelsohn
2000-08-07 21:16                 ` Gabriel Paubert
2000-08-08  1:39               ` Paul Mackerras
2000-08-11 11:04                 ` Gabriel Paubert
2000-08-12  6:29                   ` Paul Mackerras
2000-08-12 12:02                     ` Ethan Benson
2000-08-12 12:51                       ` Gabriel Paubert
2000-08-12 18:46                     ` Gabriel Paubert
2000-09-17 16:47                       ` dual G4 time issues Troy Benjegerdes
2000-08-14 12:59                     ` rtc again Gabriel Paubert
     [not found]       ` <Pine.LNX.3.96LJ1.1b7.1000803182949.650C-100000@ofey.earthl ink.net>
2000-08-03 23:58         ` Franz Sirl
2000-08-04  0:33           ` Takashi Oe
2000-08-04 12:54             ` Benjamin Herrenschmidt
2000-08-04 13:40               ` Takashi Oe
2000-08-04 13:20       ` Geert Uytterhoeven
2000-08-08 11:20         ` Gabriel Paubert
2000-08-03 10:31   ` Franz Sirl
  -- strict thread matches above, loose matches on Subject: below --
2000-08-03  9:41 Iain Sandoe
2000-08-03  9:56 Iain Sandoe
2000-08-03 10:13 ` Benjamin Herrenschmidt
2000-08-03 11:58 ` Martin Costabel
2000-08-03 11:24 Iain Sandoe
     [not found] <20000804205524.383@192.168.1.10>
2000-08-05  1:10 ` Takashi Oe
2000-08-05 11:25   ` Benjamin Herrenschmidt
2000-08-05 14:44     ` Takashi Oe
2000-08-08 11:35 Iain Sandoe
2000-08-08 13:14 ` Geert Uytterhoeven
2000-08-08 14:31 Iain Sandoe
2000-08-08 17:08 ` Michael Schmitz
2000-08-08 17:41   ` Benjamin Herrenschmidt
2000-08-08 22:44     ` Gabriel Paubert
2000-08-09  8:44       ` Benjamin Herrenschmidt
2000-08-09 11:32         ` Martin Costabel
2000-08-09 13:50         ` Gabriel Paubert
2000-08-09 15:25           ` Benjamin Herrenschmidt
2000-08-09 16:54             ` Takashi Oe
2000-08-09 17:04               ` Benjamin Herrenschmidt
2000-08-09 23:12                 ` Takashi Oe
2000-08-09 23:48                   ` Benjamin Herrenschmidt
2000-08-09 22:13             ` Gabriel Paubert
2000-08-09 22:48               ` Benjamin Herrenschmidt
2000-08-10  3:08                 ` Gabriel Paubert
2000-08-10  0:00               ` William Blew
2000-08-09 14:26         ` Takashi Oe
2000-08-09  0:55     ` Takashi Oe
2000-08-09  8:48       ` Benjamin Herrenschmidt
2000-08-09 16:37         ` Takashi Oe
2000-08-09 22:46           ` Gabriel Paubert
2000-08-09 14:24     ` Geert Uytterhoeven

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