archive mirror
 help / color / mirror / Atom feed
From: Alan Cox <>
To: (Pavel Machek)
Cc: (Arjan van de Ven), (Sven Geggus),
Subject: Re: Changing CPU Speed while running Linux
Date: Sat, 16 Jun 2001 14:23:33 +0100 (BST)	[thread overview]
Message-ID: <> (raw)
In-Reply-To: <> from "Pavel Machek" at Jun 14, 2001 01:12:20 PM

> Can you dig that out? I'd like to take a look.
> [Of course, problem is *not* solved: you still have short time when
> kernel runs with wrong bogomips.]

Not really. WHen you do the speed change on most of these cpus you have to
do it with IRQs off and with the PCI bridge temporarily disabled as the CPU
disconnects from the bus during speed transititions and cannot take part in
cache coherency

  parent reply	other threads:[~2001-06-16 13:35 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2001-06-13 12:35 Sven Geggus
2001-06-13 13:21 ` Arjan van de Ven
2001-06-14 13:12   ` Pavel Machek
2001-06-16 10:46     ` arjan
2001-06-16 13:23     ` Alan Cox [this message]
2001-06-16 13:56       ` Ian Stirling
2001-06-13 13:41 ` Magnus Sandberg
2001-06-13 13:49   ` Dave Jones
2001-06-13 22:23 Dieter Nützel

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \ \ \ \ \ \ \
    --subject='Re: Changing CPU Speed while running Linux' \

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).