Date: Sun, 28 Oct 2007 15:39:55 +0700 From: Eugene Grosbein <eugen@kuzbass.ru> To: stable@freebsd.org Subject: CMOS, daylight saving time and dual-boot Message-ID: <20071028083955.GA69713@svzserv.kemerovo.su>
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Hi! I have dual-boot machine with 7.0-BETA1 and Windows that keeps CMOS time local (there is /etc/wall_cmos_clock also). It was tuned off yesterday evening and turned back on today, loading FreeBSD. Meantime the switch from Summer Time to Standard Time has ocurred. There is 'ntpd_enable="YES"' in /etc/rc.conf. Nothing in a system reacted on the end of Summer Time period, so ntpd just complained about 3600 seconds exceeded sanity limit and bailed out (documented behavour). There is Status Register B at the offset 0x0b in the ISA Compatible CMOS, its least significant bit should keep Daylight Saving flag (on/off). Is it used in modern hardware? Does FreeBSD use it? It is supposed to use it? Eugene Grosbein
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