wrong system time after wakeup

wrong system time after wakeup

[Peter Münster]

Hello,
when resuming from S1, the system-time is completely wrong: about 22h
instead of 11h.
The system goes to sleep the day before at about 22h30 with the following
commands:
modprobe genrtc
sleep 5
echo 2005-01-11 11:10:00 >/proc/acpi/alarm
sleep 5
echo 1 >/proc/acpi/sleep

What could be wrong?
I'm using Linux-2.6.10 and ASUS A7N8X-X ACPI BIOS Rev 1006.

Thanks in advance for any help! Please tell me, if you need more information.
Kind regards, Peter

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Re: wrong system time after wakeup

[Nigel Cunningham]

Hi Peter.

That attached little patch will fix your issue.

Regards,

Nigel

diff -ruNp 910-original-time-patch-old/arch/i386/kernel/time.c 910-original-time-patch-new/arch/i386/kernel/time.c
--- 910-original-time-patch-old/arch/i386/kernel/time.c	2004-12-27 10:03:24.000000000 +1100
+++ 910-original-time-patch-new/arch/i386/kernel/time.c	2005-01-08 10:23:28.335811408 +1100
@@ -343,12 +343,13 @@ static int timer_resume(struct sys_devic
 		hpet_reenable();
 #endif
 	sec = get_cmos_time() + clock_cmos_diff;
-	sleep_length = get_cmos_time() - sleep_start;
+	sleep_length = (get_cmos_time() - sleep_start) * HZ;
 	write_seqlock_irqsave(&xtime_lock, flags);
 	xtime.tv_sec = sec;
 	xtime.tv_nsec = 0;
 	write_sequnlock_irqrestore(&xtime_lock, flags);
-	jiffies += sleep_length * HZ;
+	jiffies += sleep_length;
+	wall_jiffies += sleep_length;
 	return 0;
 }
 


On Tue, 2005-01-11 at 06:39, Peter Münster wrote:
> Hello,
> when resuming from S1, the system-time is completely wrong: about 22h
> instead of 11h.
> The system goes to sleep the day before at about 22h30 with the following
> commands:
> modprobe genrtc
> sleep 5
> echo 2005-01-11 11:10:00 >/proc/acpi/alarm
> sleep 5
> echo 1 >/proc/acpi/sleep
> 
> What could be wrong?
> I'm using Linux-2.6.10 and ASUS A7N8X-X ACPI BIOS Rev 1006.
> 
> Thanks in advance for any help! Please tell me, if you need more information.
> Kind regards, Peter
-- 
Nigel Cunningham
Software Engineer, Canberra, Australia
http://www.cyclades.com

Ph: +61 (2) 6292 8028      Mob: +61 (417) 100 574



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