From: "H. Peter Anvin" <hpa@zytor.com>
To: linux-kernel@vger.kernel.org
Subject: Re: Linux Post codes during runtime, possibly OT
Date: 25 Jan 2001 14:26:36 -0800 [thread overview]
Message-ID: <94q96s$9b2$1@cesium.transmeta.com> (raw)
In-Reply-To: <3A709E99.25ADE5F6@echostar.com>
Followup to: <3A709E99.25ADE5F6@echostar.com>
By author: "Ian S. Nelson" <ian.nelson@echostar.com>
In newsgroup: linux.dev.kernel
>
> I'm curious. Why does Linux make that friendly 98/9a/88 looking
> postcode pattern when it's running? DOS and DOS95 don't do that.
>
> I'm begining to feel like I can tell the system health by observing it,
> kind of like "seeing the matrix."
>
It output garbage to the 80h port in order to enforce I/O delays.
It's one of the safe ports to issue outs to.
-hpa
--
<hpa@transmeta.com> at work, <hpa@zytor.com> in private!
"Unix gives you enough rope to shoot yourself in the foot."
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next prev parent reply other threads:[~2001-01-25 22:27 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-01-25 21:46 Linux Post codes during runtime, possibly OT Ian S. Nelson
2001-01-25 22:26 ` H. Peter Anvin [this message]
2001-01-25 22:31 ` Matthew Dharm
2001-01-25 22:32 ` H. Peter Anvin
2001-01-25 22:41 ` Matthew Dharm
2001-01-25 22:45 ` H. Peter Anvin
2001-01-25 23:08 ` Richard B. Johnson
2001-01-25 23:10 ` H. Peter Anvin
2001-01-26 13:58 ` Richard B. Johnson
2001-01-26 16:19 ` H. Peter Anvin
2001-01-26 17:54 ` David Welch
2001-01-29 2:35 ` Paul Gortmaker
2001-01-27 10:20 ` Rogier Wolff
2001-01-27 20:47 ` H. Peter Anvin
2001-01-27 21:01 ` Rogier Wolff
2001-01-27 21:24 ` H. Peter Anvin
2001-01-28 10:12 ` Rogier Wolff
2001-01-28 10:18 ` H. Peter Anvin
2001-01-28 11:03 ` Rogier Wolff
2001-01-28 17:22 ` Jamie Lokier
2001-01-28 22:34 ` Pavel Machek
2001-01-29 15:09 ` Richard B. Johnson
2001-01-29 19:21 ` H. Peter Anvin
2001-01-28 22:29 ` Pavel Machek
2001-01-30 17:44 ` Mark H. Wood
2001-01-30 18:10 ` Richard B. Johnson
2001-01-30 18:16 ` mirabilos
2001-01-30 18:36 ` Richard B. Johnson
2001-01-30 18:41 ` mirabilos
-- strict thread matches above, loose matches on Subject: below --
2001-01-26 15:41 Petr Vandrovec
2001-01-26 15:07 ` Richard B. Johnson
2001-01-26 15:15 ` Mark Hahn
2001-01-26 15:31 ` Jamie Lokier
2001-01-26 16:03 ` Richard B. Johnson
2001-01-26 16:22 ` Jamie Lokier
2001-01-26 15:42 Manfred Spraul
2001-01-26 16:07 ` Richard B. Johnson
2001-01-26 16:33 ` Brian Gerst
2001-01-27 12:28 ` Pavel Machek
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