Issue #9454 has been updated by Eric Wong.


 Btw, TestException#test_machine_stackoverflow_by_define_method fails
 on an ancient glibc 2.5-42.el5_4.3 (CentOS 5.4 x86_64).
 
 I think this is a bug in pthread_getattr_np when it is run on the main
 thread.  I'm not sure how many people care about a platform this old,
 though; and I've been meaning to upgrade that anyways.

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Bug #9454: The define_method(:class) segfault
https://bugs.ruby-lang.org/issues/9454#change-44725

* Author: Kyrylo Silin
* Status: Closed
* Priority: Normal
* Assignee: 
* Category: 
* Target version: 
* ruby -v: ruby 2.1.0p0 (2013-12-25 revision 44422) [x86_64-linux]
* Backport: 1.9.3: UNKNOWN, 2.0.0: UNKNOWN, 2.1: UNKNOWN
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Ruby 2.1.0p0 segfaults when I invoke the following code.

    define_method(:class) { self.class }
    self.class #=> segfault :(

It affects exclusively Ruby 2.1.0p0 (I also tested on the most recent 2.0.0, 1.9.3 and 1.8.7).

By the way, on the contrary, the following code *does not segfault*.

    def self.class; self.class end
    self.class #=> SystemStackError

Viva la Ucraino revolucin!

---Files--------------------------------
bug9454.txt (625 KB)


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