gistfile1.rb

require 'mysql2'
require 'fast_stack'

client = Mysql2::Client.new(:host => "localhost", :username => "root")

query = "SELECT * FROM information_schema.COLUMNS LIMIT 58"

# '58' is something of a magic number for this query.  Any less, and the bug doesn't show up.  At 58 or greater, I get:
#   "Lost connection to MySQL server during query (Mysql2::Error)"
# The bug goes away if you comment out the FastStack.profile{} line.

FastStack.profile{
  res = client.query(query)
  puts "Got #{res.to_a.length} rows"
}