# Ruby-prof on amd64

**URL:** <https://www.ruby-forum.com/t/ruby-prof-on-amd64/73375>\
**Category:** Ruby\
**Created:** [October 24, 2006, 9:16am UTC](https://www.ruby-forum.com/t/ruby-prof-on-amd64/73375 "2006-10-24T09:16:40Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![jeremy\_k](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/j/5f8ce5/32.png) [@jeremy\_k](https://www.ruby-forum.com/u/jeremy_k)\
**Post date:** [October 24, 2006, 9:16am UTC](https://www.ruby-forum.com/t/ruby-prof-on-amd64/73375/1 "2006-10-24T09:16:40Z")

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The ruby-prof extension seems to fail on amd64. Simplest case:

$ uname -a  
Linux ks 2.6.15-27-amd64-k8 #1 SMP PREEMPT Sat Sep 16 01:57:42 UTC 2006  
x86\_64 GNU/Linux  
$ ruby -v  
ruby 1.8.4 (2005-12-24) [x86\_64-linux]  
$ ruby -rubygems -e ‘require “unprof”; “abc”.size’  
/usr/local/lib/site\_ruby/1.8/rubygems/custom\_require.rb:33:in `require': integer 23456248293192 too big to convert to`int’ (RangeError)  
from -e:1

Has anyone gotten it working?

Thanks,  
jeremy