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Date: Tue, 19 Sep 2000 13:53:18 +0900
From: Akihiro HIRANO <hirano@t.kanazawa-u.ac.jp>
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Subject: [FreeBSD-users-jp 55342] Re: HDD =?ISO-2022-JP?B?GyRCJE4bKEI=?=
 DMA =?ISO-2022-JP?B?GyRCJSglaSE8ISkbKEI=?= 
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$BJ?Ln(B@$B6bBtBg$G$9!#(B

> >> > ad4: DMA problem fallback to PIO mode
> 
> 	$B;H$($G$O$J$/$F(B, $B;H$&$G$9$M(B:-)$B!#(BDMA (Direct Memori Access)$B$KLdBj(B
                                                   memorY

> 	$B$,$"$k$N$G(B PIO (Programal Input/Output)$B$K(B fallback ($BBeBX(B?)$B$7$?(B
                        programaBLE
> 	$B$H!#(B
> 
> 	$B;d$N;~$b$=$&$G$7$?$,(B, $B%$%s%?!<%U%'!<%9(B, $B%O!<%I%G%#%9%/$H$$$&$h$j$b(B,
> 	$B%1!<%V%k$NLdBj$+$H!#(BUDMA33 $B$K$b$J$i$J$$$H$3$m$+$i8+$F(B, $BIJ<A$KLdBj$,(B
> 	$B$"$k$H;W$$$^$9(B($B;d$b8r49$7$?(B:-)$B!#(B

$B!!$I$&$d$C$F$b%@%a$J$i!"(Bsysctl$B$G(Bpio$B%b!<%I$K8GDj$7$F$7$^$&$H!"F1$8%(%i!<(B
$B$r2?EY$b=P$9$h$&$J$3$H$O$J$$$H;W$$$^$9!#Nc$($P!"(B

	/sbin/sysctl -w hw.atamodes=pio,---,pio,pio

$B$N$h$&$J9T$r(B/etc/rc$BEy$G<B9T$9$k$H$+!#$J$*!"%G%P%$%9$,B8:_$7$J$$$H$3$m(B
$B$K!V(B---$B!W0J30$r=q$/$HNI$/$J$$$3$H$,$"$C$?$H;W$$$^$9(B ($B5-21$,$"$d$7$$!D(B)$B!#(B
----
$BJ?Ln989((B@$B6bBtBg3X9)3XIt(B $B>pJs%7%9%F%`9)3X2J(B ($B5l(B $BEE5$!&>pJs9)3X2J(B)
hirano@t.kanazawa-u.ac.jp
