From: "H. Peter Anvin" <hpa@zytor.com>
To: linux-kernel@vger.kernel.org
Subject: Re: zImage not supported for 2.2.20?
Date: 1 Jan 2002 16:54:52 -0800 [thread overview]
Message-ID: <a0tlos$e6m$1@cesium.transmeta.com> (raw)
In-Reply-To: <4.3.2.7.2.20011228173505.00aa3da0@192.168.124.1> <4.3.2.7.2.20011228124704.00abba70@192.168.124.1> <4.3.2.7.2.20011228173505.00aa3da0@192.168.124.1> <4.3.2.7.2.20011231090710.00ab7e30@192.168.124.1>
Followup to: <4.3.2.7.2.20011231090710.00ab7e30@192.168.124.1>
By author: Roy Hills <linux-kernel-l@nta-monitor.com>
In newsgroup: linux.dev.kernel
>
> My understanding is that the problem is something to do with the
> Toshiba Tecra laptops not flushing the cache properly when activating
> the A20 line. This causes a problem for bzImage kernels because they
> decompress into extended memory, whereas zImage kernels don't and
> thus don't tickle the bug.
>
It's a timing problem; it has nothing to do with the cache. The
workaround for the timing problem was added a long time ago.
-hpa
--
<hpa@transmeta.com> at work, <hpa@zytor.com> in private!
"Unix gives you enough rope to shoot yourself in the foot."
http://www.zytor.com/~hpa/puzzle.txt <amsp@zytor.com>
next prev parent reply other threads:[~2002-01-02 0:55 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-12-28 10:18 zImage not supported for 2.2.20? Roy Hills
2001-12-28 12:12 ` Matthias Andree
2001-12-28 12:26 ` bug reports for CML2? rpjday
2001-12-28 12:39 ` André Dahlqvist
2001-12-28 13:11 ` zImage not supported for 2.2.20? Roy Hills
2001-12-28 13:35 ` Matthias Andree
2001-12-28 14:32 ` Petri Kaukasoina
2001-12-28 20:13 ` Wolfgang Erig
2001-12-29 2:23 ` H. Peter Anvin
2002-01-01 15:16 ` Wolfgang Erig
2001-12-28 17:44 ` Roy Hills
2001-12-28 18:19 ` Alan Cox
2001-12-28 20:36 ` Petri Kaukasoina
2001-12-29 2:25 ` H. Peter Anvin
2001-12-29 2:58 ` Alan Cox
2001-12-29 11:01 ` Petri Kaukasoina
2001-12-28 18:36 ` H. Peter Anvin
2001-12-28 19:04 ` Alan Cox
2001-12-28 18:42 ` H. Peter Anvin
2001-12-31 9:12 ` Roy Hills
2002-01-02 0:54 ` H. Peter Anvin [this message]
2001-12-31 12:16 ` Roy Hills
2001-12-31 13:06 ` Petri Kaukasoina
-- strict thread matches above, loose matches on Subject: below --
2001-12-28 21:06 Andries.Brouwer
2001-12-28 21:55 ` H. Peter Anvin
2001-12-28 23:57 ` Alan Cox
2001-12-29 0:01 Andries.Brouwer
2001-12-29 0:17 ` H. Peter Anvin
2001-12-29 0:20 ` H. Peter Anvin
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