From: regis d'aubarede <redmine@...>
Date: 2009-02-16T21:17:55+09:00
Subject: [ruby-core:22184] [Bug #1164] 1.9/windows memroy leak with rand() AND inspect

Bug #1164: 1.9/windows memroy leak with rand() AND inspect
http://redmine.ruby-lang.org/issues/show/1164

Author: regis d'aubarede
Status: Open, Priority: Normal
Category: core, Target version: 1.9.1
ruby -v: ruby 1.9.1p0 (2009-01-30 revision 21907) [i386-mswin32]

# Here is my codes. memory jump far away with ruby 1.9.1, stable with 1.8.6
# seems that a issue arrive when inspect() AND rand() are call in the same function (?!)

$MAXC=500
def test1  ss=[] ; 0.upto($MAXC) {|j| ss << j        };  ss.inspect ; end
def test2  ss=[] ; 0.upto($MAXC) {|j| ss << j*rand() };               end
def test3  ss=[] ; 0.upto($MAXC) {|j| ss <<   rand() };  ss.inspect ; end  # bug
def test4  ss=[] ; 0.upto($MAXC) {|j| ss <<   rand() };               end
def test5  ss=[] ; 0.upto(1000*$MAXC) {|j| rand() }   end
def test6  ss=[] ; 0.upto(1000*$MAXC) {|j| rand().inspect }   end  # bug
def test7  ss=[] ; 0.upto(1000*$MAXC) {|j| j.inspect }   end

puts RUBY_VERSION 
notest=7
notest==1 && 0.upto(1000*1000*1000) { test1  } # ok
notest==2 && 0.upto(1000*1000*1000) { test2  } # ok
notest==3 && 0.upto(1000*1000*1000) { test3  } # >>>> bug 1.9.1
notest==4 && 0.upto(1000*1000*1000) { test4  } # ok
notest==5 && 0.upto(1000*1000*1000) { test5  } # ok
notest==6 && 0.upto(1000*1000*1000) { test6  } # >>>> bug 1.9.1
notest==7 && 0.upto(1000*1000*1000) { test7  } # ok


----------------------------------------
http://redmine.ruby-lang.org