From: ko1@...
Date: 2017-05-19T06:54:16+00:00
Subject: [ruby-core:81254] [Ruby trunk Bug#13324][Closed] IRB Segmentation Fault from eval infinite loop

Issue #13324 has been updated by ko1 (Koichi Sasada).

Status changed from Open to Closed

Fundamentally, we can't control machine stack overflow.
We will improve the situation (but can't solve completely).


----------------------------------------
Bug #13324: IRB Segmentation Fault from eval infinite loop
https://bugs.ruby-lang.org/issues/13324#change-64915

* Author: srodman7689@gmail.com (Sean Rodman)
* Status: Closed
* Priority: Normal
* Assignee: 
* Target version: 
* ruby -v: ruby 2.3.0p0 (2015-12-25 revision 53290) [x86_64-darwin15]
* Backport: 2.2: UNKNOWN, 2.3: UNKNOWN, 2.4: UNKNOWN
----------------------------------------
I am not sure if this has already been taken care of or not but I am using ruby 2.3.0 and irb 0.9.6(09/06/30) and when I run the below code I get a segmentation fault

```ruby
a = "eval a"; eval a
```
when running the same code with just the ruby interpreter I get the below error which is what I would expect

```
-e:1:in `eval': stack level too deep (SystemStackError)
	from (eval):1:in `<main>'
	from (eval):1:in `eval'
	from (eval):1:in `<main>'
	from (eval):1:in `eval'
	from (eval):1:in `<main>'
	from (eval):1:in `eval'
	from (eval):1:in `<main>'
	from (eval):1:in `eval'
	 ... 9507 levels...
	from (eval):1:in `eval'
	from (eval):1:in `<main>'
	from -e:1:in `eval'
	from -e:1:in `<main>'
```



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