[#84867] [Ruby trunk Bug#14357] thread_safe tests suite segfaults — v.ondruch@...

Issue #14357 has been reported by vo.x (Vit Ondruch).

11 messages 2018/01/15
[#85364] Re: [Ruby trunk Bug#14357] thread_safe tests suite segfaults — Eric Wong <normalperson@...> 2018/02/03

v.ondruch@tiscali.cz wrote:

[#84980] [Ruby trunk Feature#13618][Assigned] [PATCH] auto fiber schedule for rb_wait_for_single_fd and rb_waitpid — hsbt@...

Issue #13618 has been updated by hsbt (Hiroshi SHIBATA).

10 messages 2018/01/23
[#85012] Re: [Ruby trunk Feature#13618][Assigned] [PATCH] auto fiber schedule for rb_wait_for_single_fd and rb_waitpid — Eric Wong <normalperson@...> 2018/01/23

hsbt@ruby-lang.org wrote:

[ruby-core:84622] [Ruby trunk Bug#14279] Modifying splat argument causes segmentation fault

From: corey@...
Date: 2018-01-03 21:01:46 UTC
List: ruby-core #84622
Issue #14279 has been reported by coreycerovsek (Corey Cerovsek).

----------------------------------------
Bug #14279: Modifying splat argument causes segmentation fault
https://bugs.ruby-lang.org/issues/14279

* Author: coreycerovsek (Corey Cerovsek)
* Status: Open
* Priority: Normal
* Assignee: 
* Target version: 
* ruby -v: ruby 2.5.0rc1 (2017-12-14 trunk 61243) [x86_64-linux]
* Backport: 2.3: UNKNOWN, 2.4: UNKNOWN, 2.5: UNKNOWN
----------------------------------------
Using Docker Ruby images ruby:2.2 through ruby:rc as of 2018-01-03, this little bit of code causes a segmentation fault:

~~~
class A 
  def x(*args)
    args = 13
    super
  end
end
A.new.x
~~~

I'm not sure what the behavior of super ought to be here, and it doesn't seem to be addressed by The Ruby Spec Suite, but with Ruby 2.1 (Docker ruby:2.1) this causes a "no superclass method" exception rather than crashing the interpreter. I'm guessing this has to do with the optimization in https://bugs.ruby-lang.org/issues/10440



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