public inbox for linux-kernel@vger.kernel.org
 help / color / mirror / Atom feed
From: Chuck Ebbert <cebbert@redhat.com>
To: linux-kernel <linux-kernel@vger.kernel.org>
Subject: Why do so many machines need "noapic"?
Date: Wed, 05 Sep 2007 19:30:07 -0400	[thread overview]
Message-ID: <46DF3BFF.9000809@redhat.com> (raw)

Some systems lock up without the noapic option. I found one
that will freeze while trying to set up the timer interrupt.
Passing 'nolapic' makes it freeze just after:

   Setting up timer through ExtINT... works

Sometimes it will boot up and then freeze during the startup
scripts. Passing the noapic option fixes all that, but it
then gets 1000 spurious interrupts per second on IRQ7 (which
only shows ehci using it.) Kernel version is 2.6.22.

             reply	other threads:[~2007-09-05 23:30 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-09-05 23:30 Chuck Ebbert [this message]
2007-09-06 11:31 ` Why do so many machines need "noapic"? Andi Kleen
2007-09-07 19:34   ` Chuck Ebbert
2007-09-08  5:17     ` Prakash Punnoor
2007-09-10 19:12       ` Chuck Ebbert
2007-09-10 19:44         ` Andi Kleen
2007-09-10 23:33           ` Chuck Ebbert
2007-09-13 16:38           ` Chuck Ebbert
2007-09-25  9:06             ` Thomas Gleixner
2007-09-15  7:39   ` Andrew Morton
2007-09-15 10:58     ` Ingo Oeser
2007-09-15 11:08       ` Andrew Morton
2007-09-15 12:08         ` Matthew Garrett
2007-09-24 21:32           ` Dave Jones
2007-09-27 22:03             ` Phillip Susi
2007-09-15 18:42     ` Rafael J. Wysocki
  -- strict thread matches above, loose matches on Subject: below --
2007-09-08  4:12 Al Boldi

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:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

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

  git send-email \
    --in-reply-to=46DF3BFF.9000809@redhat.com \
    --to=cebbert@redhat.com \
    --cc=linux-kernel@vger.kernel.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox