From: han.holl@... (Han Holl)
Date: 2003-09-01T23:08:06+09:00
Subject: Bug in mmap or ruby with ruby-1.8.0

Searching for a non-existing string in a mmapped region produces a segfault.
Run the following little program:

require 'mmap'
file = "/usr/bin/ruby"
fma = Mmap.new(file, "r", Mmap::MAP_SHARED, {'offset' => 8192, 'length' => 4096})
puts fma.index("\n#\n", 12)
fma.unmap

Under 1.8.0:

tt.rb:10: [BUG] Segmentation fault
ruby 1.8.0 (2003-08-04) [i686-linux]
 
Aborted

With 1.6.8:
nil

Cheers,

Han Holl