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Date:      Mon, 13 Jul 2015 11:58:09 +0000 (UTC)
From:      Christian Brueffer <brueffer@FreeBSD.org>
To:        src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-10@freebsd.org
Subject:   svn commit: r285446 - stable/10/sys/x86/isa
Message-ID:  <201507131158.t6DBw9vR074923@repo.freebsd.org>

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Author: brueffer
Date: Mon Jul 13 11:58:08 2015
New Revision: 285446
URL: https://svnweb.freebsd.org/changeset/base/285446

Log:
  MFC: r284931
  
  Set the initial system time to a sane (as in: not end of 21st century)
  value when booting on a PC with CMOS clock set to a year before 2000.
  
  This uses 1980 (instead of 1970 as in the initial patch) as pivot year as
  suggested by imp in the PR followup.
  
  PR:		195703
  Submitted by:	cs@soi.spb.ru
  Reviewed by:	imp
  Approved by:	re (gjb)

Modified:
  stable/10/sys/x86/isa/atrtc.c
Directory Properties:
  stable/10/   (props changed)

Modified: stable/10/sys/x86/isa/atrtc.c
==============================================================================
--- stable/10/sys/x86/isa/atrtc.c	Mon Jul 13 10:23:52 2015	(r285445)
+++ stable/10/sys/x86/isa/atrtc.c	Mon Jul 13 11:58:08 2015	(r285446)
@@ -354,7 +354,7 @@ atrtc_gettime(device_t dev, struct times
 #ifdef USE_RTC_CENTURY
 	ct.year += readrtc(RTC_CENTURY) * 100;
 #else
-	ct.year += 2000;
+	ct.year += (ct.year < 80 ? 2000 : 1900);
 #endif
 	critical_exit();
 	/* Set dow = -1 because some clocks don't set it correctly. */



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