From: Alexandre Pereira Nunes <alexandre.nunes@gmail.com>
To: linux-kernel@vger.kernel.org
Subject: 2.6.18 tsc clocksource + ntp = excessive drift; acpi_pm does fine.
Date: Tue, 28 Nov 2006 21:46:28 -0200 [thread overview]
Message-ID: <456CCA54.6090504@gmail.com> (raw)
Hi,
with default boot I got tsc clocksource selected on an debian's
2.6.18-3-k7 SMP build (but UP machine). ntp keeps bothering me with this
message:
frequency error 512 PPM exceeds tolerance 500 PPM
If I remove ntp's drift file and restart, it goes fine for a while and
then it goes with that behaviour again.
If I remove ntp's drift file, then do a: echo acpi_pm
>/sys/devices/system/clocksource/clocksource0/available_clocksource ;
and then restart ntp, it goes fine "forever".
Any toughs, something I should look at?
I'll be glad to give more feedback.
I don't know if that happened with 2.6.17, but I'm pretty sure that with
2.6.16 it was fine.
- Alexandre
next reply other threads:[~2006-11-28 23:46 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-11-28 23:46 Alexandre Pereira Nunes [this message]
2006-11-29 1:03 ` 2.6.18 tsc clocksource + ntp = excessive drift; acpi_pm does fine john stultz
2006-11-29 1:29 ` Alexandre Pereira Nunes
2006-11-29 11:26 ` Alexandre Pereira Nunes
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