Bug #4140: segfault recursion inside a thread

• Status: Rejected
• Assignee: -
• Target version: 1.9.2
• ruby -v: ruby 1.9.2p0 (2010-08-18 revision 29036) [x86_64-linux]

[luis (Luis Lopez)]

=begin
The code below (thanks to flavorjones from Nokogiri) makes ruby 1.9.2 to segfault. It works with 1.8.7 or without the thread, just raising a SystemStackError (stack level too deep).
You can find the stack trace attached.

DEPTH = 2000

def recurse(offset)
STDERR.puts offset
if offset >= DEPTH
"done"
else
[1].inject("") do |y, child|
recurse(offset+1)
y
end
end
end

th=Thread.new {
puts recurse(0).inspect
}
th.join
=end

[naruse (Yui NARUSE)]

• Status changed from Open to Rejected

Ruby cannot guarantee SystemStackError to be thrown.