Re: 2.6.12.3 clock drifting twice too fast (amd64)

Jeff Mahoney
2005-08-16T23:17:13Z

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Christoph Lameter wrote:
> On Tue, 16 Aug 2005, jerome lacoste wrote:
>
>>Installed stock 2.6.12.3 on a brand new amd64 box with an Asus extreme
>>AX 300 SE/t mainboard.
>>
>>I remember seeing a message in the boot saying something along:
>>
>> "cannot connect to hardware clock."
>>
>>And now I see that the time is changing too fast (about 2 seconds each second).
>
> The timer interrupt is probably called twice for some reason and therefore
> time runs twice as fast. Try using HPET for interrupt timing.
>
>>I don't have visual on the boot sequence anymore (only remote access).
>
> Use serial console or netconsole. The boot information is logged. Try
> dmesg.

I am seeing similar results on my Acer Ferrari 4000 (Turion64 ML-37). It
does appear that time is running 2x normal time.

Booting with noapictimer cleared up the timing issues, though it did
introduce some IRQ badness.

- -Jeff

- --
Jeff Mahoney
SuSE Labs
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.0 (GNU/Linux)

iD8DBQFDAnPzLPWxlyuTD7IRAuQ+AKCoK4Bvj9YaSxK1cYzK/LQUGcj2pQCgmBKK
hGeSfGE+CvdNzqW3pN5LQq8=
=wtra
-----END PGP SIGNATURE-----