[SLUG] Linux VM problems (and I'm so cool)

From: Derek Glidden (dglidden@illusionary.com)
Date: Tue Oct 30 2001 - 12:37:14 EST


I've been harping on the 2.4 kernel's VM problems for some time now.
(Even to the extent of bending Maddog's ear at Chilis after the last CTS
Expo about some of the problems I'd been having.)

Slashdot pointed to a nice article on Byte magazine outlining some of
the problems:

http://www.byte.com/documents/s=1436/byt20011024s0002/1029_moshe.html

Of course even better are the names in the commentary in the source code
about halfway down the page used to bring a Linux 2.4 box dragging to a
halt... :)

-- 
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
#!/usr/bin/perl -w
$_='while(read+STDIN,$_,2048){$a=29;$b=73;$c=142;$t=255;@t=map
{$_%16or$t^=$c^=($m=(11,10,116,100,11,122,20,100)[$_/16%8])&110;
$t^=(72,@z=(64,72,$a^=12*($_%16-2?0:$m&17)),$b^=$_%64?12:0,@z)
[$_%8]}(16..271);if((@a=unx"C*",$_)[20]&48){$h=5;$_=unxb24,join
"",@b=map{xB8,unxb8,chr($_^$a[--$h+84])}@ARGV;s/...$/1$&/;$d=
unxV,xb25,$_;$e=256|(ord$b[4])<<9|ord$b[3];$d=$d>>8^($f=$t&($d
>>12^$d>>4^$d^$d/8))<<17,$e=$e>>8^($t&($g=($q=$e>>14&7^$e)^$q*
8^$q<<6))<<9,$_=$t[$_]^(($h>>=8)+=$f+(~$g&$t))for@a[128..$#a]}
print+x"C*",@a}';s/x/pack+/g;eval 

usage: qrpff 153 2 8 105 225 < /mnt/dvd/VOB_FILENAME \ | extract_mpeg2 | mpeg2dec -

http://www.cs.cmu.edu/~dst/DeCSS/Gallery/ http://www.eff.org/ http://www.anti-dmca.org/ http://www.sciencemag.org/cgi/content/full/293/5537/2028



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