Warning : many lost ticks, time source seems to be instable

pokkie · n00b Joined: 29 Jun 2004 Posts: 13 Location: Reading, UK

Hello all,

I have recently begun the long process of installing gentoo on my new Athlon 64. When I try to run

Geoffrey · n00b Joined: 25 Jun 2004 Posts: 6

I personally don't have an AMD 64, but I think your computer is saying that your system clock is having problems. Try typing "date" on the shell, and then typing it again 1 hour later and seeing if your clock is consistent.

pokkie · n00b Joined: 29 Jun 2004 Posts: 13 Location: Reading, UK

Righto, will try that.

Thanks for the suggestion.

-- Pokkie

pokkie · n00b Joined: 29 Jun 2004 Posts: 13 Location: Reading, UK

Rigto, timed my clock for 1 hour and it didn't loose 1 second.

Any other suggestion would be most welcome.

Regards,

-- Pokkie

asjapulk · n00b Joined: 15 Apr 2004 Posts: 71

I have the same problem. It kind of went away when I disabled dynamic overclocking (MSI Neo FIS2R m/b), but now it's back again.

I also have another problem:
I get

Pink · Veteran Joined: 24 Jul 2003 Posts: 1062

I don't use a 64 but there is an option in the kernel which the notes say 'fixes' the lost ticks problem.

You may want to try that, (don't forget to mount /boot before copying over the new bzImage

)

It's under Power Management -> acpi -> Power Management Timer Support.

This may help, but as I say I haven't got a 64...

pokkie · n00b Joined: 29 Jun 2004 Posts: 13 Location: Reading, UK

fumtu99 · n00b Joined: 05 Sep 2002 Posts: 59

Um, I don't think it makes any difference, if you're running in 64-bit mode: that option ("Power Management Timer Support") doesn't appear in the Power Management->ACPI menu, if you're using the x86_64 architecture, and the only place where the flag would be used is in the arch/i386/kernel part of the source tree. This is bad news for me: I'm getting tons of those messages in my log file. I suspect that the only way I can disable it is by disabling frequency scaling, something I'd sort of like to keep for my notebook, just to keep it from burning up batteries quite so quickly. The funny thing is that if I run in 32-bit mode, I don't seem to need it; it might be time to submit a bug report, but I think that the bug is not in Gentoo, per se, but rather in the current state of the 64-bit kernel, so I'm not sure where I'd submit it.

James

RAPUL · Posted: Wed Jun 30, 2004 1:46 pm Post subject: Bios time.

Change time in BIOS.

Sometimes a corruption of CMOS gives unexpected errors.
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thaldyron · Posted: Wed Jun 30, 2004 4:07 pm Post subject: Re: Bios time.

asjapulk · n00b Joined: 15 Apr 2004 Posts: 71

My "Lost ticks" disappeared when I installed right driver in kernel for my PATA disk.
Thou still got the problem with * Failed to set hardware clock to system clock" at boot and shutdown:(

So if you get

thaldyron · Posted: Thu Jul 01, 2004 1:54 am Post subject: Re: still

jman · n00b Joined: 02 Jul 2004 Posts: 2

I have a hunch that most of you are using a VIA chipset board. I have an Asus K8V SE Deluxe, and as soon as I recompiled my kernel with VIA VP IDE support, and disabled all of the other IDE drivers the problem is gone. I was having a lot of stability issues as well, but they seem to have cleared up. For those with notebooks, it's the speed-step type feature that is causing problems. There is a setting somewhere in the kernel options to fix it. For those with desktops, I guess the "Cool-n-Quiet" feature could cause the same kind of issues, but it's enabled on my system and it seems to be fine. In closing, I'm not so sure this is as much a kernel issue as it is a configuration issue. With new technology we have to worry about bugs in the code, and in our configuration. Good luck everyone. There is no question that Gentoo is the best way to flex your AMD64's muscles!

Flappie · n00b Joined: 01 Jul 2004 Posts: 8 Location: Netherlands

Nopes i have the same problem and i have a sis chipset

torklingberg · Tux's lil' helper Joined: 30 May 2004 Posts: 86

Similar problem here, but the warning in dmesg is:

jman · n00b Joined: 02 Jul 2004 Posts: 2

For those who are sure they have the right IDE drivers, then it is a frequency scaling issue. "Cool-n-Quiet" on desktops. It does work fine on mine though.

crontab · n00b Joined: 13 Aug 2003 Posts: 6 Location: Netherlands

Hi,

I've had the same problem.
I solved it by compiling the via82xx into the kernel not as a module.
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use Gentoo;
require AMD64 qw(3200+);

thaldyron · Posted: Fri Jul 02, 2004 5:44 pm Post subject:

TiccTech · n00b Joined: 13 Jun 2004 Posts: 42 Location: Oregon, US

The same problem is biting me -- 2.6.5 kernel works fine; 2.6.7-r6 or 2.6.7-r7 both lose ticks. Kernels compiled with the same (as close as possible) options. SiS760/964 chipset.

I also have a problem on 2.6.7 of the HID module failing to load. I didn't see anyone else mention that so it's not necessarily related.

Anyway, I guess it's time to try building some different kernels to see if that helps...

-TiccTech

thaldyron · Posted: Sat Jul 03, 2004 9:20 pm Post subject:

TiccTech · n00b Joined: 13 Jun 2004 Posts: 42 Location: Oregon, US

herring · Apprentice Joined: 22 Jul 2002 Posts: 187 Location: Norway

MSI K8N Neo platinum, AMD64 3200+ and FX5700ULTRA. stage1 installation from gcc34-amd64-2004.2-test3. Nothing fancy; CFLAGS="-march=k8 -O2 -pipe", CHOST="x86_64-pc-linux-gnu", USE="", ACCEPT_KEYWORDS="amd64".

Im only getting "lost ticks" after starting xorg-x11. I am using nvidia driver (ver 1.0.5332-r1) .

Could it be this driver, or xorg-x11 itself being task-intensive ?

herring · Apprentice Joined: 22 Jul 2002 Posts: 187 Location: Norway

Starting xorg-x11 without nvidia (using a vga driver 600x480) produced lost ticks as well...

EDIT> Btw I am using gentoo-dev-sources (linux-2.6.7-gentoo-r7) and fluxbox

Not sure if this info is useful:
From within xorg-x11 (X) running tail -f /var/log/messages in a xterm to monitor new tics
Iam not able to produce lost tics by running intensive tasks as emerging or starting programs like firefox

However, if I run glxinfo or glxgear, I am able to reproduce 2-3 error messages every time.

vyzivus · Posted: Mon Jul 12, 2004 12:41 pm Post subject:

Yo!
I have exactly the same problem with my acer aspire 1501LMi. I tried all options from .config suggested by TiccTech (thanks for tips for useless devices :-)

however the messages didn't disappear. Well I haven't checked them all: I don't see the point in compiling USB_HID as a module.
I tried to turn the CPU frequency scaling off but it was a disaster: avg temp was 5C higher than normal and fan never stopped. Only thing that disappeared was the line:
Losing some ticks... checking if CPU frequency changed.
I already posted the bug to amd64 gentoo devs, just check out
https://bugs.gentoo.org/show_bug.cgi?id=56073
I just compiled with AUTOFS4_FS=m, let's see what it does.
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vyzivus · Posted: Mon Jul 12, 2004 1:30 pm Post subject:

Ok, the avg fan was 15C higher above normal (50C), and compiling with AUTOFS4_FS=m didn't help either. I even tried compiling via8233 sound (i hope that was meant by via82xx :-)

, but ticks are still merciless. 2.6.7-r9 kernel, "VT82C586A/B/VT82C686/A/B/VT823x/A/C PIPC Bus Master IDE", using "VIA82CXXX chipset support" kernel driver.
_________________
I thought what I'd do was, I'd pretend I was one of those deaf-mutes or should I?