[ruby-core:104166] [Ruby master Bug#17937] Segmentation fault in Enumerator#next on Apple M1, Mac OS Big Sur 11.2.2

Issue #17937 has been updated by 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.

----------------------------------------
Bug #17937: Segmentation fault in Enumerator#next on Apple M1, Mac OS Big Sur 11.2.2
https://bugs.ruby-lang.org/issues/17937#change-92340

* Author: tim.kovalev (Tim Kovalev)
* Status: Closed
* Priority: Normal
* ruby -v: 2.7.1
* Backport: 2.6: UNKNOWN, 2.7: UNKNOWN, 3.0: UNKNOWN
----------------------------------------
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.

---Files--------------------------------
irb_output.txt (31.6 KB)
ruby_2021-06-04-180849_RLX-TLL-MC001.crash (31.2 KB)


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