Issue #4925 has been reported by Jonathan Dance.

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Bug #4925: Infinite recursion allowed in rescue clause
http://redmine.ruby-lang.org/issues/4925

Author: Jonathan Dance
Status: Open
Priority: Normal
Assignee: 
Category: 
Target version: 
ruby -v: ruby 1.9.3dev (2011-06-24 trunk 32222) [i686-linux]


The issue pertains to the following example:

def a
  b
rescue NameError
  a
end
a

The type of exception raised and rescued is not relevant; the bug occurs with any exception type.

Expected behavior: A SystemStackError should be raised.

Current behavior: The Ruby process will consume cpu and memory until killed.

This is a regression in 1.9.x; the bug does not occur in 1.8-head. The bug is reproducible on all versions of 1.9 I have tested:

ruby 1.9.2p180 (2011-02-18 revision 30909) [i686-linux]
ruby 1.9.2p274 (2011-06-06 revision 31932) [i686-linux]
ruby 1.9.3dev (2011-06-24 trunk 32222) [i686-linux]


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