Hi,

I don`t know if it`s the same problem, but I had similar troubles on an old 
computer running kernel 2.6. It could be solved by disabling acpi.

Am Montag, 16. Mai 2005 14:02 schrieb nx:
> I find that my linux box's time always runs faster than real time.
>
> This is the trouble:
> [EMAIL PROTECTED] ~]$ LANG=C uptime
>   19:17:58 up 3 days, 23:44,  1 user,  load average: 0.27, 0.21, 0.24
> [EMAIL PROTECTED] ~]$ LANG=C date
> Mon May 16 19:18:17 CST 2005
> [EMAIL PROTECTED] ~]$ LANG=C hwclock
> Mon May 16 18:59:42 2005  -0.271290 seconds
>
> I double checked the 2 time with other clocks, the hwclock is accurate.
> The system clock gets about 18.5 minutes faster after 3 day running.
>
> I noticed this problem several days ago.And I have googled about it, an
> article saying kernel timer 3 times faster. But its solution seems not
> suitable for me.
>
> And I have checked that, it does not exist when kernel is 2.4.xx version.
> It must be a kernel related problem, now I am using 2.6.11.7 kernel for
> that 18.5 minutes faster after 3 day.
> Knoppix 3.8.1, slax 5.0.x get same result: system get 2-3 minutes faster
> after 6-8 hour running.
>
> I have tried to address down the problem, but it seems to hard for an
> average user.
> I think it's adjtimx's job to control the system clock's speed. But I can
> not figure out what parameters to give. And arch linux does not provide it.
> Or more directly, the system clock speed is reflected from one of the
> files in /proc/sys or /sys, maybe that clock's speed can be tuned by write
> a number into a file there. /proc/sys/dev/rtc/max-user-freq and
> /sys/block/hda/queue/iosched/est_time may be. But I am not sure of their
> meaning. /sys/devices/system/timer/timer0 is an empty directory, then what
> is it for?
>
> Some other information about my machine(this may help to trackdown the
> problem):
> [EMAIL PROTECTED] ~]$ cat /proc/cpuinfo
> processor       : 0
> vendor_id       : AuthenticAMD
> cpu family      : 6
> model           : 10
> model name      : AMD Athlon(tm) XP 2500+
> stepping        : 0
> cpu MHz         : 1830.099
> cache size      : 512 KB
> physical id     : 0
> siblings        : 1
> fdiv_bug        : no
> hlt_bug         : no
> f00f_bug        : no
> coma_bug        : no
> fpu             : yes
> fpu_exception   : yes
> cpuid level     : 1
> wp              : yes
> flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca
> cmov pat pse36 mmx fxsr sse pni syscall mmxext 3dnowext 3dnow
> bogomips        : 3620.86
>
> [EMAIL PROTECTED] ~]$ lspci
> 00:00.0 Host bridge: nVidia Corporation: Unknown device 01e0 (rev c1)
> 00:00.1 RAM memory: nVidia Corporation: Unknown device 01eb (rev c1)
> 00:00.2 RAM memory: nVidia Corporation: Unknown device 01ee (rev c1)
> 00:00.3 RAM memory: nVidia Corporation: Unknown device 01ed (rev c1)
> 00:00.4 RAM memory: nVidia Corporation: Unknown device 01ec (rev c1)
> 00:00.5 RAM memory: nVidia Corporation: Unknown device 01ef (rev c1)
> 00:01.0 ISA bridge: nVidia Corporation: Unknown device 0060 (rev a4)
> 00:01.1 SMBus: nVidia Corporation: Unknown device 0064 (rev a2)
> 00:02.0 USB Controller: nVidia Corporation: Unknown device 0067 (rev a4)
> 00:02.1 USB Controller: nVidia Corporation: Unknown device 0067 (rev a4)
> 00:02.2 USB Controller: nVidia Corporation: Unknown device 0068 (rev a4)
> 00:04.0 Ethernet controller: nVidia Corporation: Unknown device 0066 (rev
> a1)
> 00:06.0 Multimedia audio controller: nVidia Corporation nForce MultiMedia
> audio [Via VT82C686B] (rev a1)
> 00:08.0 PCI bridge: nVidia Corporation: Unknown device 006c (rev a3)
> 00:09.0 IDE interface: nVidia Corporation: Unknown device 0065 (rev a2)
> 00:1e.0 PCI bridge: nVidia Corporation: Unknown device 01e8 (rev c1)
> 01:07.0 Ethernet controller: Unknown device 168c:001a (rev 01)
> 02:00.0 VGA compatible controller: ATI Technologies Inc: Unknown device
> 5961 (rev 01)
> 02:00.1 Display controller: ATI Technologies Inc: Unknown device 5941 (rev
> 01)
>
> I am running faster to year 2038, another Y2K day. ^_^
> It is very kind of you to help me get knowledge about linux internal. :)
>
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-- 
Pierre Schmitz

http://archlinux.laber-land.de

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