Issue #9900 has been updated by Nobuyoshi Nakada.

Status changed from Open to Closed

It may have been fixed already, but not sure because the link doesn't reveal the revision and the platform.

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Bug #9900: Segmentation fault with recursive reference of a hash
https://bugs.ruby-lang.org/issues/9900#change-47035

* Author: Tsuyoshi Sawada
* Status: Closed
* Priority: Normal
* Assignee: 
* Category: 
* Target version: 
* ruby -v: ruby 2.1.2
* Backport: 2.0.0: UNKNOWN, 2.1: UNKNOWN
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The following code raises a segmentation fault.

    Hash.new{|h,k| h[k]}[:foo]
    # => [BUG] Segmentation fault at 0x007fff5f3fff80

This bug was found on stackoverflow http://stackoverflow.com/questions/24028557/irb-crash-segmentation-bug-and-ruby-syntax-clarification



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