turbovisor segfault

randomwrite.rb

require 'open-uri'

TARGET_URL = "http://localhost:8888/"
TARGET_DIR = "./"
CORE_FILE = "./core"

def random_file_update
  rng = Random.new
  10000.times do |i|
    filename = File.join(TARGET_DIR, sprintf("%d", i % 10))
    File.open(filename, "wb") do |fp|
      fp.write rng.bytes(rng.rand(10 * 1024 * 1024) + 10 * 1024 * 1024)
    end
    sleep(rng.rand(0.0 .. 0.1))
    #p "file"
  end
end
def random_http_access
  rng = Random.new
  10000.times do |i|
    begin
      OpenURI.open_uri(TARGET_URL){|io| io.read }
    rescue => e
      # ignore error
    end
    sleep(rng.rand(0.0 .. 0.1))
    #p "http"
  end
end
def find_core
  while true
    if File.exists?(CORE_FILE)
      puts "core dump!!"
      exit
    end
    sleep(1)
  end
end

threads = []
2.times do
  # random file update thread
  threads << Thread.new do
    random_file_update()
  end
  # random http access thread  
  threads << Thread.new do
    random_http_access()
  end
end
threads << Thread.new do
  find_core()
end

threads.each do |t|
  t.join
end

test.lua

local turbo = require("turbo")
local TestHandler = class("TestHandler", turbo.web.RequestHandler)
function TestHandler:get()
   self:write("test handler")
end
local app = turbo.web.Application:new({
    {"/", TestHandler}
})
app:listen(8888)
turbo.ioloop.instance():start()