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To: FreeBSD-users-jp@jp.FreeBSD.org, yoshio@apl.pref.akita.jp
From: Kazumasa Gotoh <kgotoh@cic-kk.co.jp>
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Date: Wed, 22 Oct 2003 17:51:54 +0900
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Subject: [FreeBSD-users-jp 76925] Re: FreeBSD 5.1R
 =?ISO-2022-JP?B?GyRCJSQlcyU5JUghPCVrO34kSxsoQg==?= DVD-ROM
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From: Yoshio Funaki <yoshio@apl.pref.akita.jp>
Date: Wed, 22 Oct 2003 16:45:12 +0900

> $B$3$l$C$F!"$?$7$+(BAOPEN$B$N(B52$BG\B.(BCD-ROM$B$G$b=P$F$?%a%C%;!<%8$G$9!#(B
> $B$?$7$+(BDMA$B$r@Z$k$H(BOK$B$H8@$&5-;v$,!"$3$N(BML$B$N$I$C$+$K$"$k$O$:$G$9!#(B
> $B!t!!$&$m3P$($G$9$,!"(BFAQ$B$K$b$"$C$?$h$&$J!&!&!&!&!!(B^^;

P3B-F $B$N(B BIOS $B@_Dj$G!"(BDV-516E-A $B$r$D$J$$$@$H$3$m$O!"(BPIO2 $B$G(B
DMA Disable $B$K$7$?$s$G$9$,!D(B $B$H$$$&$+!"(BP3B-F $B$G$O(B IDE $B$K@\B3$7$?(B
$B5!4o$r(B 'CD-ROM' $B$@$H;XDj$9$k$H<+F0E*$K$3$&$J$j$^$9!#(B

BIOS $B$G(B DMA $B$r@Z$C$F$b$@$a$@$H$9$k$H!"9bB.$J(B CD-ROM/DVD-ROM $B$r;H$C$?(B
$B%^%7%s$G$O(B FreeBSD 4.8/5.1 $B$r(B CD-ROM/DVD-ROM $B$+$i%$%s%9%H!<%k$9$k;v$,(B
$B$G$-$J$$$H$$$&OC$K$J$k$N$G$7$g$&$+!)(B (^^;

> $B$H8@$&$3$H$G!"(Bhw.ata?.dma$B$J$s$A$c$i$r$:$i!A$C$HD/$a$F(BDMA$B$r@Z$k@_Dj$r$9$k$H(B
> $B;H$($k$h$&$K$J$k$H;W$$$^$9!#(B

$B%$%s%9%H!<%k$7$?(B FreeBSD 5.1 $B%^%7%s$G(B sysctl $B$7$F$_$k$H(B

  hw.ata.ata_dma: 1
  hw.ata.atapi_dma: 0

$B$H$J$j$^$9!#$7$+$7!"%$%s%9%H!<%k$,=*$o$C$?$"$H$J$i$3$l$O2?$H$+(B
$B;XDj2DG=$G$9$,!"%$%s%9%H!<%i$r;H$C$F$k;~$K$O!"$b$&$I$&$7$h$&$b(B
$B$J$$$G$9$h$M!#(B

> $B$G$b!"3N$+$3$l$r$d$k$H!"F1$8(BATA channel$B$K7R$,$C$F$k(BHDD$B$b(BDMA$B;H$($J$/(B
> $B$J$k$s$8$c$J$+$C$?$+$J$!!#(B

$B$&!A$s!D(B $B$=$&$@$H$9$k$H!"%$%s%9%H!<%k8e$G$"$C$F$b!"$=$l$O$=$l$G(B
$B:$$j$^$9$h$M$'!#(B

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                             $B8eF#OB@/(B    kgotoh@cic-kk.co.jp
