Bug #17937: Segmentation fault in Enumerator#next on Apple M1, Mac OS Big Sur 11.2.2

• Status: Closed
• Assignee: -
• Target version: -
• ruby -v: 2.7.1
• Backport: 2.6: UNKNOWN, 2.7: UNKNOWN, 3.0: UNKNOWN

[tim.kovalev (Tim Kovalev)]

A simple code in the irb console fails:

irb(main):003:0> [1,2,3].to_enum.next
[BUG] Segmentation fault at 0x0000000004809020
ruby 2.7.1p83 (2020-03-31 revision a0c7c23c9c) [-darwin20]
...
-- Control frame information -----------------------------------------------
c:0001 p:---- s:0003 e:000002 (none) [FINISH]

-- Other runtime information -----------------------------------------------

* Loaded script: irb

* Loaded features:

    0 enumerator.so
    1 thread.rb
...
please see an attached irb_output.txt for full output

Expected behaviour:

irb(main):001:0> [1,2,3].to_enum.next
=> 1
irb(main):002:0> 

This does not happen in 2.7.3 and 3.0.1 though, so upgrading a version of ruby solves the issue.

[jeremyevans0 (Jeremy Evans)]

• Status changed from Open to Closed

If this is already fixed in 2.7.3, I think we can close this. We cannot change 2.7.1.