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To: FreeBSD-users-jp@jp.freebsd.org
From: Yoshihiro Koya <Yoshihiro.Koya@math.yokohama-cu.ac.jp>
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	<20010227.153201.596584427.mitsuru@zebu.riken.go.jp>
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Subject: [FreeBSD-users-jp 59338] Re: dmesg -a
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$B$3$s$P$s$O!#>.20$G$9!#(B

From: Mitsuru Yoshida <mitsuru@zebu.riken.go.jp>
Date: Tue, 27 Feb 2001 15:32:01 +0900 (JST)
Message-ID: <20010227.153201.596584427.mitsuru@zebu.riken.go.jp>

>  Robert $B$5$s$+$i!"<!$N$h$&$J(B mail $B$r$b$i$$$^$7$?!#(B
[snip]
> We're currently considering adding two new sysctl's that could be used to
> restrict creation and access to msgbuf data.  First, a sysctl that toggles
> whether or not console output is sent to the message buffer.  Second, a
> sysctl that toggles whether or not dmesg output is available in jail().
> ==========================================================================
> 
> $B$H$$$&$3$H$G!"2?$,$^$:$$$N$+$O$A$c$s$H$o$+$C$F$b$i$($F$k$_$?$$$G!"D>$9M=(B
> $BDj$G$"$k$i$7$$$N$G!"$7$P$i$/$*BT$A2<$5$$!"$C$F46$8$G$9$M!#(B

$B$J$k$[$I!#$+$J$j<j$r$$$l$F2~NI$9$k$_$?$$$G$9$M!#(B

> > $B$"$H$O(B kernel $B$r:F9=C[$7$F%$%s%9%H!<%k$7$^$9!#$A$g$C$H$@$1$7$+(B
> > $B;n$7$F$J$$$N$G$9$,!">/$J$/$H$b$3$l$G!"(Bsingle user mode $B$G:n6H(B
> > $B$7$?FbMF$,$G$k$3$H$OL5$/$J$j$^$7$?!#(Bdmesg, sysctl,
> > /var/log/console.log $B$$$:$l$K$bM-8z$G$9!#(B
>  $B$*$*!#$?$C$?0l9T$G$$$$$s$G$9$M!#(B

log_console $B$H$$$&4X?t$r8F$s$G$$$k$N$O$3$N0l$+=j$G!"$7$+$b!"(B
$B$3$N(B log_console $B$H$$$&4X?t$,(B msgbuf $B$K(B /dev/console $B$K=q$-9~$^$l$?$b(B
$B$N$r(B append $B$7$F$$$k4X?t$J$N$G!"$3$l$r;_$a$l$PNI$$$h$&$G$9!#(B

> # $B$=$&$$$&$N$I$&$d$C$F8+$D$1$k$s$G$7$g$&!)(B

$B:#2s$O!"(B/dev/console $B$,$i$_$H$$$&$3$H$G!"C1=c$K(B
grep console * $B$7$F8+$D$1$^$7$?!#(B

> $B$H$j$"$($:$N(B fix $B$H$$$&46$8$G=P$7$F$b$i$C$?J}$,$$$$$N$G$7$g$&$+!#(B
> $B$=$l$H$b!"$=$&$$$&$H$j$"$($:$N(B fix $B$O=P$5$J$$J}$,$$$$$N$G$7$g$&$+!#(B

$B;d$bG:$s$@$N$G$9$,!"C1=c$K%3%a%s%H%"%&%H$9$k$H(B
$B%m%0$H$j$N5!G=$,;`$s$G$7$^$$$^$9!#$3$&$J$k$H!"(B
$B@_7W>e$N%]%j%7!<$NLdBj$H$$$($k$+$b$7$l$^$;$s!#(B
$B:#$"$k5!G=$r@8$+$7$D$D!"LdBjE@$rD>$=$&$H$7$F$$$k$3$H$O(B rwatson $B$5$s$N(B
$B%a!<%k$+$iFI$a$^$9$N$G!"%3%a%s%H%"%&%H$7$F$=$NItJ,$r;&$9$H$$$&$N$O!"(B
$B$=$N%]%j%7!<$H$OH?$9$k$h$&$J5$$,$7$^$9!#(B
$B$A$g$C$HMM;R8+$?J}$,NI$$$+$bCN$l$J$$$h$&$J5$$O$7$F$$$^$9$,!"(B
4.3-BETA $B=P$F$b?JE8$,$J$+$C$?$i!"Ej$2$F8+$h$&$+$J$H$O;W$C$F$$$^$9!#(B

$B>.20(B
