From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from sipsolutions.net (crystal.sipsolutions.net [195.210.38.204]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTP id D32EEDDEEA for ; Thu, 25 Jan 2007 23:55:14 +1100 (EST) Subject: Re: [PATCH 2/3] powermac: proper time of day after resume From: Johannes Berg To: Gabriel Paubert In-Reply-To: <20070125110951.GA31911@iram.es> References: <20061213123819.403286000@sipsolutions.net> <20061213123945.386891000@sipsolutions.net> <1169620444.18754.66.camel@localhost.localdomain> <20070124085420.GA19810@iram.es> <1169631177.18754.82.camel@localhost.localdomain> <20070124103621.GA22579@iram.es> <2435847C-A9FC-4430-A122-416B9B347038@kernel.crashing.org> <20070125110951.GA31911@iram.es> Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="=-gR9Ky+dfdn1oaGGdsl6N" Date: Thu, 25 Jan 2007 13:54:05 +0100 Message-Id: <1169729645.19614.1.camel@johannes.berg> Mime-Version: 1.0 Cc: linuxppc-dev@ozlabs.org List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , --=-gR9Ky+dfdn1oaGGdsl6N Content-Type: text/plain Content-Transfer-Encoding: quoted-printable On Thu, 2007-01-25 at 12:09 +0100, Gabriel Paubert wrote: > If we did suspend the machines to save power, the only solution=20 > would be to tell NTP to synchronize with the master clock by=20 > stepping the time (not slewing) at resume time. You also know that you have such a requirement, and obviously also know what you could do to fix it. I see this as a non-issue. Even if we *try* to sync with the second transition (which is likely rather hard to do) then we won't have the required precision for a bunch of applications, so it's futile to try it anyway. Besides, if we don't do it at all the time just keeps running where it was before suspend... johannes --=-gR9Ky+dfdn1oaGGdsl6N Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part -----BEGIN PGP SIGNATURE----- Comment: Johannes Berg (powerbook) iD8DBQBFuKht/ETPhpq3jKURArY4AJ9esAwmO3sFj733WBpReyjvLY/93QCgmBa/ 1s6bO1KapntvDYiQOrbg4UQ= =YGlX -----END PGP SIGNATURE----- --=-gR9Ky+dfdn1oaGGdsl6N--