2004-06-24 13:32:21

by Norbert Preining

[permalink] [raw]
Subject: Time is running at high speed with 2.6-mm and HPET

Hi!

With 2.6-mm and
CONFIG_HPET_TIMER=y
CONFIG_HPET_EMULATE_RTC=y
my clock is running about double the speed it should. This happens with
a laptop (acer tm 654) and my good old athlon 1400 via pc.

Turning off CONFIG_HPET_TIMER fixes the problem.

I attach my config file for 2.6.7-mm1 and the dmesg output (first lines
are missing)

Best wishes

Norbert

-------------------------------------------------------------------------------
Norbert Preining <preining AT logic DOT at> Technische Universit?t Wien
gpg DSA: 0x09C5B094 fp: 14DF 2E6C 0307 BE6D AD76 A9C0 D2BF 4AA3 09C5 B094
-------------------------------------------------------------------------------
Does it worry you that you don't talk any kind of sense?
--- Douglas Adams, The Hitchhikers Guide to the Galaxy

Attachments:
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 dmesg.txt (11.83 kB)
 config-2.6.7-mm1 (35.68 kB)
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2004-06-24 14:21:07

by Matt Heler

[permalink] [raw]
Subject: Re: Time is running at high speed with 2.6-mm and HPET

Norbert,

This is a known issue, try to upgrade to 2.6.7-mm2 if you can.

Matt H.

On Thursday 24 June 2004 6:28 am, Norbert Preining wrote:
> Hi!
>
> With 2.6-mm and
> CONFIG_HPET_TIMER=y
> CONFIG_HPET_EMULATE_RTC=y
> my clock is running about double the speed it should. This happens with
> a laptop (acer tm 654) and my good old athlon 1400 via pc.
>
> Turning off CONFIG_HPET_TIMER fixes the problem.
>
> I attach my config file for 2.6.7-mm1 and the dmesg output (first lines
> are missing)
>
> Best wishes
>
> Norbert
>
> ---------------------------------------------------------------------------
>---- Norbert Preining <preining AT logic DOT at> Technische
> Universit?t Wien gpg DSA: 0x09C5B094 fp: 14DF 2E6C 0307 BE6D AD76
> A9C0 D2BF 4AA3 09C5 B094
> ---------------------------------------------------------------------------
>---- Does it worry you that you don't talk any kind of sense?
> --- Douglas Adams, The Hitchhikers Guide to the Galaxy

2004-06-24 16:25:19

by Felipe Alfaro Solana

[permalink] [raw]
Subject: Re: Time is running at high speed with 2.6-mm and HPET

On Thu, 2004-06-24 at 15:28 +0200, Norbert Preining wrote:
> Hi!
>
> With 2.6-mm and
> CONFIG_HPET_TIMER=y
> CONFIG_HPET_EMULATE_RTC=y
> my clock is running about double the speed it should. This happens with
> a laptop (acer tm 654) and my good old athlon 1400 via pc.
>
> Turning off CONFIG_HPET_TIMER fixes the problem.
>
> I attach my config file for 2.6.7-mm1 and the dmesg output (first lines
> are missing)

This has been fixed in 2.6.7-mm2... It seems there was a bug when APIC
was enabled.