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Date: Sat, 02 Mar 2002 20:15:03 +0900
From: Seigo Tanimura <tanimura@r.dl.itc.u-tokyo.ac.jp>
To: FreeBSD-users-jp@jp.FreeBSD.org
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cc: Seigo Tanimura <tanimura@r.dl.itc.u-tokyo.ac.jp>
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$BC+B<!w?^=q4[EE;R2=8&(B.$B4pHW(B.$BElBg(B $B$G$9!#(B

On Sat, 02 Mar 2002 02:22:23 +0900,
  OISHI Masakuni <oishi@sra.co.jp> said:

OISHI> $B$[$s$N(B3$BF|$[$IA0$N$3$H$G$9$,!"(B4-STABLE$B$K=$@5$,F~$j!"(B
OISHI> OOM killer$B$NF0:n$,>/$7$@$1JQ99$5$l$^$7$?!#(B
OISHI> (src/sys/vm/vm_fault.c $B$[$+(B)


$B$3$l!";d$bD4$Y$F$_$^$7$?$,!"8z2L$,$"$k$N$+$I$&$+$O$h$/J,$+$j$^$;$s!#(B

$B;d$,8+$k8B$j!"(BOOM Killer$B$K4X$7$F$$$($P!"$3$NJQ99$N%-%b$O(B
vm/vm_pageout.c$B$K$"$k(Bvm_pageout_scan()$B$G$9!#$G$9$,!"JQ99E@$O$?$C$?(B1$B8D=j!"(B
u-area($B$D$^$j(Bkernel stack)$B$r(Bhold$B$7$F$$$k(Bprocess$B$bBP>]$K2C$($?$@$1$G$9!#(B

u-area$B$rK\<AE*$K(Bhold$B$9$k$N$O(Bfork1()$B$0$i$$$7$+;W$$$D$-$^$;$s!#(B
Mathematica$B$O;H$C$?$3$H$,$"$j$^$;$s$,!"7W;;Cf$K(Bfork(2)$B$rO"H/$7$F$$$k$N$G(B
$B$7$g$&$+(B? ($B4JC1$J?t<0$rF~$l$F(Btop(1)$B$G$b$H$C$F$_$l$PM=A[$O$D$/(B) $B$b$7$7$F(B
$B$$$J$1$l$P!"(BOOM killer$B$N5sF0$O=>Mh$I$*$j$G$7$g$&!#(B


$B3NG'$r4^$a$F!"(BOOM killer$B$NF0:n$K$D$$$F=R$Y$^$9!#(BOOM killer$B$O(Bswap$B$,(Bfull$B$K(B
$B$J$k$H!"3F(Bprocess$B$K$D$$$F0J2<$N(B2$B9`L\$rD4$Y$^$9(B($BBP>]30$H$J$k(Bprocess$B$"$j(B)$B!#(B

1. address space$B$,J*M}(Bmemory$B>e$KB8:_$9$k(Bpage$B?t(B
$B$3$l$O(Bpmap$B$GE}7W$r$H$C$F$$$^$9!#(B

2. address space$B$+$i(Bswap object$B$XDI$$=P$5$l$?(Bpage$B?t(B
$B$3$l$O(Bswap object$B$GE}7W$r$H$C$F$$$^$9!#(B

$B$3$l$i$N9g7W$r(Bprocess$B$N;HMQ(Bmemory size$B$H$7$^$9!#$3$NCM$,$b$C$H$bBg$-$$(B
process$B$K(BSIGKILL$B$rEj$2$F;&$7$^$9!#(B

$B$G$O8=<B$N(Bprocess$B$,$I$l$/$i$$(Bmemory$B$r;H$&$+$G$9$,!";d$N7W;;5!$@$H(B

--- v --- ps axuwwg --- v ---
USER       PID %CPU %MEM   VSZ  RSS  TT  STAT STARTED      TIME COMMAND
root       656  3.7 14.5 118024 9324  ??  Ss   $B7n(B01PM  641:29.99 /usr/X11R6/bin/XFree86 ...
tanimura   731  0.0 24.1 86108 15489  p1  S    $B7n(B01PM  159:56.36 xemacs ...
--- ^ --- ps axuwwg --- ^ ---

$B$H$$$&$"$?$j$,L\$K$D$-$^$9!#;d$N>l9g(B30$BKg$0$i$$Ak$r3+$$$F$$$k$N$b$"$j$^$9(B
$B$,!"$d$O$j(BX server$B$O?)$$$^$9$M!#(BOOM killer$B$,F0$$$?$iITMx$K$J$j$^$9!#(B


$B$?$@!"!V2?$r;&$;$P$$$$$N$+!W$H$$$o$l$k$H!"$I$&$b(BX server$B$r;D$7$?$$$H$$$&(B
$B$N$OWs0UE*$J5$$,$7$^$9!#(Bmemory size$B0J30$N4p=`NL$H$7$F!"(Bpage fault$B2s?t$d(B
cpu$B;HMQN($J$I$b9M$($F$_$^$7$?$,!"$$$:$l$b!V$b$7K\Ev$K(BX server$B$,%O%G$KF0(B
$B$$$F$$$?$i;&$7$F$$$$$N$+(B?$B!W$H$$$&5?Ld$K$V$AEv$?$j$^$9!#F1$8$h$&$KF0$$$F(B
$B$$$F$b(BMathematica$B$J$i;&$7$F$$$$!"(BX server$B$O;&$7$?$/$J$$$H$$$&MW5a$,=P$F(B
$B$/$k$N$G$"$l$P!"$`$7$m?M4V$,;&$7$F$O$J$i$J$$(Bprocess$B$r;XDj$9$k;EAH$_$NJ}(B
$B$,I,MW$J$N$+$bCN$l$^$;$s!#(B

-- 
Seigo Tanimura <tanimura@r.dl.itc.u-tokyo.ac.jp> <tanimura@FreeBSD.org>
