From: "H. Peter Anvin" <hpa@zytor.com>
To: "David P. Reed" <dpreed@reed.com>
Cc: Ingo Molnar <mingo@elte.hu>, Rene Herman <rene.herman@gmail.com>,
Paul Rolland <rol@as2917.net>,
Alan Cox <alan@lxorguk.ukuu.org.uk>, Pavel Machek <pavel@ucw.cz>,
Thomas Gleixner <tglx@linutronix.de>,
linux-kernel@vger.kernel.org, Ingo Molnar <mingo@redhat.com>,
rol@witbe.net
Subject: Re: [PATCH] x86: provide a DMI based port 0x80 I/O delay override.
Date: Mon, 17 Dec 2007 11:55:03 -0800 [thread overview]
Message-ID: <4766D417.7040403@zytor.com> (raw)
In-Reply-To: <4766D035.7090104@reed.com>
David P. Reed wrote:
>
> Still wondering:
>
> what the heck is going on with port 80 on my laptop motherboard.
> Clearly it "does something".
> I will in my spare time continue investigating, though having a
> reliable system is GREAT.
>
Almost guaranteed to be some kind of debugging hack, probably
implemented either in the SuperIO chip or in SMM (or both). When some
sort of log buffer fills up, the system dies.
-hpa
next prev parent reply other threads:[~2007-12-17 20:15 UTC|newest]
Thread overview: 273+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <466F0941.9060201@reed.com>
[not found] ` <1181682498.8176.224.camel@chaos>
[not found] ` <469578CD.3080609@reed.com>
[not found] ` <1184216528.12353.203.camel@chaos>
[not found] ` <1184218962.12353.209.camel@chaos>
[not found] ` <46964352.7040301@reed.com>
[not found] ` <1184253339.12353.223.camel@chaos>
[not found] ` <469697C6.50903@reed.com>
[not found] ` <1184274754.12353.254.camel@chaos>
2007-11-12 16:55 ` [PATCH] x86: fix locking and sync bugs in x86_64 RTC code in time_64.c David P. Reed
2007-11-14 7:49 ` Thomas Gleixner
2007-11-14 13:10 ` David P. Reed
2007-11-14 18:26 ` Matt Mackall
2007-11-14 21:22 ` David P. Reed
2007-11-12 17:02 ` [PATCH] time: fix typo that makes sync_cmos_clock erratic David P. Reed
2007-11-14 7:57 ` Thomas Gleixner
2007-11-12 19:19 ` David P. Reed
2007-11-14 22:47 ` [PATCH] x86: fix freeze in x86_64 RTC update code in time_64.c David P. Reed
2007-11-14 22:49 ` [PATCH] time: fix typo that makes sync_cmos_clock erratic David P. Reed
2007-11-15 1:14 ` [PATCH] x86: on x86_64, correct reading of PC RTC when update in progress in time_64.c David P. Reed
2007-11-15 19:33 ` Thomas Gleixner
2007-11-15 20:31 ` David P. Reed
2007-11-15 22:17 ` Thomas Gleixner
2007-12-14 2:59 ` [PATCH] x86_64: fix problems due to use of "outb" to port 80 on some AMD64x2 laptops, etc David P. Reed
2007-12-14 7:49 ` Yinghai Lu
2007-12-14 9:45 ` Rene Herman
2007-12-14 14:23 ` Ingo Molnar
2007-12-14 14:36 ` Rene Herman
2007-12-14 14:46 ` Ingo Molnar
2007-12-14 14:56 ` Rene Herman
2007-12-14 18:36 ` Alan Cox
2007-12-14 18:48 ` H. Peter Anvin
2007-12-14 21:05 ` Pavel Machek
2007-12-15 22:59 ` Pavel Machek
2007-12-14 10:51 ` Andi Kleen
2007-12-14 11:11 ` David P. Reed
2007-12-14 13:15 ` Ingo Molnar
2007-12-14 13:24 ` Ingo Molnar
2007-12-14 13:47 ` Ingo Molnar
2007-12-14 14:41 ` Ingo Molnar
2007-12-14 13:42 ` Rene Herman
2007-12-14 14:03 ` Ingo Molnar
2007-12-14 14:10 ` Rene Herman
2007-12-14 14:21 ` Ingo Molnar
2007-12-14 18:02 ` H. Peter Anvin
2007-12-14 18:23 ` Rene Herman
2007-12-14 21:06 ` Pavel Machek
2007-12-14 22:13 ` H. Peter Anvin
2007-12-14 23:29 ` Alan Cox
2007-12-15 3:04 ` David P. Reed
2007-12-15 5:45 ` H. Peter Anvin
2007-12-15 17:17 ` David P. Reed
2007-12-15 17:46 ` Alan Cox
2007-12-17 22:50 ` Jan Engelhardt
2007-12-17 22:52 ` H. Peter Anvin
2007-12-15 8:08 ` Paul Rolland
2007-12-15 8:13 ` Rene Herman
2007-12-15 20:27 ` H. Peter Anvin
2007-12-15 23:26 ` [PATCH] x86: " Rene Herman
2007-12-15 23:51 ` H. Peter Anvin
2007-12-16 0:05 ` H. Peter Anvin
2007-12-16 13:15 ` [PATCH] x86: provide a DMI based port 0x80 I/O delay override Rene Herman
2007-12-16 15:22 ` Ingo Molnar
2007-12-17 1:43 ` Rene Herman
2007-12-17 2:05 ` H. Peter Anvin
2007-12-17 2:19 ` Rene Herman
2007-12-17 3:35 ` H. Peter Anvin
2007-12-17 13:02 ` Rene Herman
2007-12-17 17:14 ` H. Peter Anvin
2007-12-17 19:43 ` David P. Reed
2007-12-17 19:55 ` H. Peter Anvin
2007-12-17 21:02 ` David P. Reed
2007-12-17 21:17 ` H. Peter Anvin
2007-12-17 21:25 ` Alan Cox
2008-01-01 15:57 ` David P. Reed
2008-01-01 21:16 ` H. Peter Anvin
2008-01-01 15:59 ` David P. Reed
2008-01-01 16:15 ` Alan Cox
2008-01-01 16:43 ` Ingo Molnar
2008-01-01 17:32 ` Alan Cox
2008-01-01 18:45 ` Ingo Molnar
2008-01-01 20:14 ` Christer Weinigel
2008-01-01 21:13 ` Alan Cox
2008-01-01 21:07 ` Alan Cox
2008-01-02 10:04 ` Ingo Molnar
2008-01-02 13:11 ` [linux-kernel] " David P. Reed
2008-01-02 13:21 ` Ingo Molnar
2008-01-02 13:47 ` Alan Cox
2008-01-02 15:35 ` Rene Herman
2008-01-02 15:50 ` Rene Herman
2008-01-01 17:32 ` Christer Weinigel
2008-01-01 18:46 ` Ingo Molnar
2008-01-01 19:35 ` Christer Weinigel
2008-01-01 19:59 ` Rene Herman
2008-01-01 20:55 ` Christer Weinigel
2008-01-01 21:24 ` H. Peter Anvin
2008-01-01 21:01 ` Ingo Molnar
2008-01-01 21:26 ` Alan Cox
2008-01-01 21:42 ` Christer Weinigel
2008-01-01 21:42 ` Rene Herman
2008-01-01 21:50 ` H. Peter Anvin
2008-01-01 21:21 ` H. Peter Anvin
2008-01-01 23:05 ` Christer Weinigel
2008-01-01 23:12 ` Alan Cox
2008-01-02 0:23 ` Christer Weinigel
2008-01-02 10:00 ` Ingo Molnar
2008-01-01 17:32 ` David P. Reed
2008-01-01 17:38 ` Alan Cox
2008-01-01 21:15 ` H. Peter Anvin
2008-01-01 21:35 ` Rene Herman
2008-01-01 21:44 ` H. Peter Anvin
2008-01-01 22:35 ` Rene Herman
2008-01-01 22:39 ` H. Peter Anvin
2008-01-01 23:11 ` Rene Herman
2008-01-02 0:25 ` Rene Herman
2008-01-02 0:55 ` Christer Weinigel
2008-01-02 1:00 ` Rene Herman
2008-01-02 2:27 ` H. Peter Anvin
2008-01-09 17:27 ` Maciej W. Rozycki
2008-01-09 18:18 ` H. Peter Anvin
2008-01-01 17:31 ` Pavel Machek
2008-01-01 17:33 ` David P. Reed
2007-12-17 4:09 ` H. Peter Anvin
2007-12-17 10:57 ` Ingo Molnar
2007-12-17 11:29 ` Ingo Molnar
2007-12-17 13:34 ` David P. Reed
2007-12-17 12:15 ` Rene Herman
2007-12-17 13:09 ` Ingo Molnar
2007-12-17 13:22 ` Rene Herman
2007-12-17 13:31 ` Pavel Machek
2007-12-17 13:31 ` Rene Herman
2007-12-17 13:32 ` David P. Reed
2007-12-17 13:36 ` Rene Herman
2007-12-17 14:39 ` Ingo Molnar
2007-12-17 16:12 ` Alan Cox
2007-12-17 16:48 ` Ingo Molnar
2007-12-17 20:48 ` Rene Herman
2007-12-17 20:57 ` H. Peter Anvin
2007-12-17 21:33 ` Rene Herman
2007-12-17 21:40 ` H. Peter Anvin
2007-12-17 21:46 ` Ingo Molnar
2007-12-17 21:50 ` Rene Herman
2007-12-17 21:41 ` Ingo Molnar
2007-12-17 21:47 ` Rene Herman
2007-12-17 21:56 ` Ingo Molnar
2007-12-17 22:01 ` Rene Herman
2007-12-17 22:18 ` David P. Reed
2007-12-17 19:38 ` David P. Reed
2007-12-17 19:55 ` H. Peter Anvin [this message]
2007-12-17 21:28 ` Ingo Molnar
2007-12-16 21:42 ` H. Peter Anvin
2007-12-17 1:48 ` Rene Herman
2007-12-17 1:53 ` H. Peter Anvin
2007-12-16 23:12 ` David P. Reed
2007-12-17 1:56 ` Rene Herman
2007-12-17 2:04 ` H. Peter Anvin
2007-12-17 2:15 ` Rene Herman
2007-12-16 0:23 ` [PATCH] x86: fix problems due to use of "outb" to port 80 on some AMD64x2 laptops, etc David P. Reed
2007-12-15 20:26 ` [PATCH] x86_64: " H. Peter Anvin
2007-12-15 22:55 ` Pavel Machek
2007-12-16 9:27 ` Ingo Molnar
2007-12-17 21:04 ` Rene Herman
2007-12-17 23:20 ` Pavel Machek
2007-12-18 0:06 ` Alan Cox
2007-12-18 15:49 ` Lennart Sorensen
2007-12-17 22:46 ` Jan Engelhardt
2007-12-15 7:43 ` Ingo Molnar
2007-12-15 7:58 ` Rene Herman
2007-12-15 13:27 ` Ingo Molnar
2007-12-15 14:01 ` Rene Herman
2007-12-15 20:25 ` H. Peter Anvin
2007-12-15 14:29 ` Alan Cox
2007-12-15 16:19 ` David P. Reed
2007-12-15 16:48 ` Mark Lord
2007-12-15 17:51 ` Alan Cox
2007-12-15 23:00 ` Pavel Machek
2007-12-15 23:04 ` H. Peter Anvin
2007-12-16 9:40 ` Ingo Molnar
2007-12-16 21:43 ` H. Peter Anvin
2007-12-16 23:06 ` David P. Reed
2007-12-16 23:23 ` Pavel Machek
2007-12-16 23:34 ` H. Peter Anvin
2007-12-26 20:49 ` Pavel Machek
2007-12-17 1:51 ` Rene Herman
2007-12-14 16:08 ` Avi Kivity
2007-12-15 2:13 ` David P. Reed
2007-12-15 2:20 ` H. Peter Anvin
2007-12-17 18:14 ` linux-os (Dick Johnson)
2007-12-17 18:54 ` Rene Herman
2007-12-19 15:03 ` Avi Kivity
2007-12-30 3:34 [PATCH] x86: provide a DMI based port 0x80 I/O delay override Rene Herman
2007-12-30 9:30 ` Linus Torvalds
2007-12-30 12:48 ` Andi Kleen
2007-12-30 13:05 ` Ingo Molnar
2007-12-30 16:08 ` Andi Kleen
2007-12-30 16:28 ` Ingo Molnar
2007-12-30 18:21 ` Andi Kleen
2007-12-30 13:03 ` Ingo Molnar
2007-12-30 14:14 ` Rene Herman
2007-12-30 14:47 ` Alan Cox
2007-12-30 15:28 ` Ingo Molnar
2007-12-30 15:38 ` Alan Cox
2007-12-30 16:01 ` Ingo Molnar
2007-12-30 16:48 ` Alan Cox
2007-12-30 17:08 ` Ingo Molnar
2007-12-30 18:14 ` Rene Herman
2007-12-30 18:39 ` Alan Cox
2007-12-30 19:33 ` Rene Herman
2007-12-30 20:00 ` Linus Torvalds
2007-12-30 20:09 ` Rene Herman
2007-12-30 21:20 ` David P. Reed
2007-12-30 21:36 ` Alan Cox
2007-12-30 23:14 ` David P. Reed
2007-12-31 0:23 ` H. Peter Anvin
2007-12-31 11:59 ` Alan Cox
2007-12-31 18:19 ` H. Peter Anvin
2007-12-31 12:23 ` Alan Cox
2007-12-31 14:35 ` Rene Herman
2007-12-31 15:56 ` Alan Cox
2007-12-31 20:22 ` Ondrej Zary
2007-12-31 21:25 ` Alan Cox
2007-12-31 21:47 ` H. Peter Anvin
2007-12-31 23:24 ` Alan Cox
2007-12-31 23:41 ` H. Peter Anvin
2008-01-02 3:01 ` Rene Herman
2007-12-30 17:10 ` Juergen Beisert
2007-12-30 20:50 ` H. Peter Anvin
2007-12-31 1:03 ` David P. Reed
2007-12-31 1:40 ` H. Peter Anvin
2007-12-30 15:47 ` Rene Herman
2007-12-30 16:07 ` Ingo Molnar
2007-12-30 16:27 ` Rene Herman
2007-12-30 17:06 ` Ingo Molnar
2007-12-30 17:54 ` Rene Herman
2007-12-30 18:29 ` Alan Cox
2007-12-30 18:43 ` Andi Kleen
2007-12-30 20:46 ` Ingo Molnar
2007-12-30 21:07 ` Rene Herman
2007-12-30 21:25 ` Ingo Molnar
2007-12-30 21:29 ` Alan Cox
2007-12-30 22:03 ` Ingo Molnar
2007-12-31 13:11 ` Pavel Machek
2008-01-01 16:48 ` Ingo Molnar
2007-12-30 18:40 ` Linus Torvalds
2007-12-30 20:34 ` Ingo Molnar
2007-12-30 21:28 ` Alan Cox
2007-12-30 21:54 ` Ingo Molnar
2007-12-30 21:13 ` Alan Cox
2007-12-31 15:29 ` Christer Weinigel
2007-12-31 13:21 ` Pavel Machek
2007-12-31 12:29 ` Alan Cox
[not found] <9FXbU-3M4-11@gated-at.bofh.it>
[not found] ` <9G2Om-4hg-1@gated-at.bofh.it>
[not found] ` <9G7O3-3O2-7@gated-at.bofh.it>
[not found] ` <9G8qN-4TX-13@gated-at.bofh.it>
2007-12-30 17:50 ` Bodo Eggert
2007-12-30 18:10 ` Ingo Molnar
2007-12-30 20:56 ` H. Peter Anvin
2007-12-30 21:00 ` Ingo Molnar
2007-12-30 21:32 ` Bodo Eggert
2007-12-30 21:33 ` Alan Cox
2007-12-30 22:02 ` Ingo Molnar
2007-12-30 21:44 ` H. Peter Anvin
2007-12-30 21:58 ` Rene Herman
2007-12-30 20:53 ` H. Peter Anvin
2007-12-30 21:31 ` Alan Cox
2007-12-31 14:39 ` Bodo Eggert
2007-12-31 15:56 ` Alan Cox
[not found] <fa.PuxU73ceCfHAUeWLO4W21Zbrm7A@ifi.uio.no>
[not found] ` <fa.ipKZdmvkNYmQ40C0cO+2u3eYohw@ifi.uio.no>
[not found] ` <fa.ppsa4qOLo1V8UlDNTucnaqIJmKA@ifi.uio.no>
[not found] ` <fa.3IG7z0AfHuLo9eQjn7Gkl/+/lnA@ifi.uio.no>
[not found] ` <fa.slc2tTnUBrTGO2aTi/C5UGHEEEM@ifi.uio.no>
[not found] ` <fa.8g+KfLLge6wS5cEnKhZJmdkIVAI@ifi.uio.no>
2007-12-30 18:22 ` Robert Hancock
[not found] ` <fa.XY5q1SY4QX+yjnE6p8T3kbTt/8I@ifi.uio.no>
[not found] ` <fa.KEBfnq5vGkAJSEhZSx7+yy+Hdbs@ifi.uio.no>
[not found] ` <fa.MLKgXLxgzIKzm4bQXjEOqg9oDwU@ifi.uio.no>
[not found] ` <fa.KbCnGLPlUEYe/Ibajd+hTY7A7Qw@ifi.uio.no>
2007-12-31 18:21 ` Robert Hancock
[not found] <9BdU5-1YW-9@gated-at.bofh.it>
[not found] ` <9BeZN-3Gf-5@gated-at.bofh.it>
[not found] ` <9BnTB-1As-31@gated-at.bofh.it>
[not found] ` <9BrX4-8go-1@gated-at.bofh.it>
[not found] ` <9BuBG-4eR-51@gated-at.bofh.it>
[not found] ` <9BvRd-6aL-71@gated-at.bofh.it>
[not found] ` <9GRQW-1DX-13@gated-at.bofh.it>
[not found] ` <9GSah-23W-1@gated-at.bofh.it>
[not found] ` <9GSDy-2GD-23@gated-at.bofh.it>
[not found] ` <9GTpK-40d-15@gated-at.bofh.it>
[not found] ` <9GUvy-5H2-11@gated-at.bofh.it>
[not found] ` <9GVKU-7SS-25@gated-at.bofh.it>
2008-01-07 19:38 ` Bodo Eggert
2008-01-07 19:46 ` H. Peter Anvin
2008-01-07 22:02 ` Bodo Eggert
2008-01-07 22:10 ` H. Peter Anvin
2008-01-07 22:27 ` Bodo Eggert
2008-01-07 22:59 ` Rene Herman
2008-01-07 23:24 ` H. Peter Anvin
2008-01-07 23:26 ` Rene Herman
2008-01-08 0:10 ` [linux-kernel] " David P. Reed
2008-01-09 21:01 ` Matthieu castet
2008-01-08 12:51 ` Bodo Eggert
2008-01-08 14:09 ` Rene Herman
2008-01-08 14:31 ` Alan Cox
2008-01-07 23:25 ` Alan Cox
2008-01-08 13:17 ` Bodo Eggert
2008-01-08 14:38 ` Alan Cox
2008-01-08 3:15 ` Christer Weinigel
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=4766D417.7040403@zytor.com \
--to=hpa@zytor.com \
--cc=alan@lxorguk.ukuu.org.uk \
--cc=dpreed@reed.com \
--cc=linux-kernel@vger.kernel.org \
--cc=mingo@elte.hu \
--cc=mingo@redhat.com \
--cc=pavel@ucw.cz \
--cc=rene.herman@gmail.com \
--cc=rol@as2917.net \
--cc=rol@witbe.net \
--cc=tglx@linutronix.de \
/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;
as well as URLs for NNTP newsgroup(s).