https://bugzilla.novell.com/show_bug.cgi?id=699400 https://bugzilla.novell.com/show_bug.cgi?id=699400#c8 Stefan Seyfried <seife@novell.slipkontur.de> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEEDINFO |REOPENED InfoProvider|seife@novell.slipkontur.de | --- Comment #8 from Stefan Seyfried <seife@novell.slipkontur.de> 2011-06-14 13:39:40 CEST --- There is nothing wrong with the bits - just the kernel does not sync the CMOS clock. I did the following: * set the cmos clock wrong (to 09:00) * reboot on boot: Jun 14 09:01:45 nw8000 sntp[3655]: Started sntp Jun 14 12:48:22 nw8000 ntpd[3664]: ntpd 4.2.6p3@1.2290-o Wed Feb 23 00:32:28 UTC 2011 (1) Jun 14 12:48:22 nw8000 ntpd[3665]: proto: precision = 1.396 usec So far, so good. Now: nw8000:~ # adjtimex --print|grep status status: 8193 nw8000:~ # uptime 13:11 up 0:23, 3 users, load average: 0,16, 0,05, 0,09 nw8000:~ # date;hwclock Di 14. Jun 13:11:24 CEST 2011 Di 14 Jun 2011 09:11:25 CEST -1.015618 seconds So it looks like only the minutes are actually synchronized. There is actually a comment in the kernel source arch/x86/kernel/rtc.c: 41 int mach_set_rtc_mmss(unsigned long nowtime) 42 { .. 59 /* 60 * since we're only adjusting minutes and seconds, 61 * don't interfere with hour overflow. This avoids 62 * messing with unknown time zones but requires your 63 * RTC not to be off by more than 15 minutes 64 */ 65 real_seconds = nowtime % 60; 66 real_minutes = nowtime / 60; 67 /* correct for half hour time zone */ 68 if (((abs(real_minutes - cmos_minutes) + 15)/30) & 1) 69 real_minutes += 30; 70 real_minutes %= 60; 71 72 if (abs(real_minutes - cmos_minutes) < 30) { 73 if (!(save_control & RTC_DM_BINARY) || RTC_ALWAYS_BCD) { 74 real_seconds = bin2bcd(real_seconds); 75 real_minutes = bin2bcd(real_minutes); 76 } 77 CMOS_WRITE(real_seconds, RTC_SECONDS); 78 CMOS_WRITE(real_minutes, RTC_MINUTES); 79 } else { 80 printk_once(KERN_NOTICE 81 "set_rtc_mmss: can't update from %d to %d\n", 82 cmos_minutes, real_minutes); 83 retval = -1; 84 } so assuming "kernel is in eleven-minute-mode => CMOS clock is set correctly" is wrong. We should set the cmos clock on shutdown, even if the kernel is in eleven-minute-mode IMHO -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.