# (no subject) **URL:** \ **Category:** Ruby\ **Created:** [February 10, 2006, 5:10pm UTC](https://www.ruby-forum.com/t/no-subject/65471 "2006-02-10T17:10:39Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![djwmarks](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/d/a8b319/32.png) [@djwmarks](https://www.ruby-forum.com/u/djwmarks)\ **Post date:** [February 10, 2006, 5:10pm UTC](https://www.ruby-forum.com/t/no-subject/65471/1 "2006-02-10T17:10:39Z")
– require ‘net/imap’ ## imap = Net::IMAP.new(‘localhost’, 993, true) imap.authenticate(‘LOGIN’,‘dom’,‘mypassword’) imap.examine(‘INBOX’) imap.search([‘SINCE’,‘01-Jan-2000’]).each do |msg\_id| puts msg\_id imap.fetch(msg\_id, ‘ENVELOPE’)[0].attr[‘ENVELOPE’] end This code will cause Ruby to core dump with a bus error after a number of fetches. The number is not constant. Garbage collector acting up, or am I at fault? ## Cheers, Dominic M. IT Manager, GDC 3rd Floor 69 Wilson Street London EC2A 2BB removed\_email\_address@domain.invalid [www.graphdata.co.uk](http://www.graphdata.co.uk) ---
**Author:** ![djwmarks](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/d/a8b319/32.png) [@djwmarks](https://www.ruby-forum.com/u/djwmarks)\ **Post date:** [February 10, 2006, 5:41pm UTC](https://www.ruby-forum.com/t/no-subject/65471/2 "2006-02-10T17:41:43Z")
Dominic M. wrote: > – > > This code will cause Ruby to core dump with a bus error after a number > of fetches. The number is not constant. Garbage collector acting up, or > am I at fault? No, it’s a bug, either in one of the included packages (socket, monitor, digest/md5 or openssl) or a bug in Ruby itself. If I were a betting man, I’d bet on monitor (synchronize), but that’s a guess. Which version of Ruby, btw? The Changelog indicates that there were a few touchups since 1.8.2. Regards, Dan