Issue #10290 has been updated by Nobuyoshi Nakada.


I can't reproduce it with irb, but it might access over the top of stack.
Possibly, we need more margin for the guard page.

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Bug #10290: segfault when calling a lambda recursively after rescuing SystemStackError
https://bugs.ruby-lang.org/issues/10290#change-49102

* Author: Jack Nagel
* Status: Open
* Priority: Normal
* Assignee: 
* Category: 
* Target version: 
* ruby -v: ruby 2.1.3p242 (2014-09-19 revision 47629) [x86_64-darwin13.0]
* Backport: 2.0.0: UNKNOWN, 2.1: UNKNOWN
----------------------------------------
The following code segfaults on Ruby 2.1.3:

```
l = -> { l.() }

begin
  l.()
rescue SystemStackError
  l.() # segfault
end
```

the issue does not occur on trunk.

---Files--------------------------------
ruby_2014-09-25-000925_haswell.log (46.4 KB)
ruby_2014-09-25-001644_haswell.log (46.8 KB)


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