Issue #12941 has been reported by Per Lundberg.

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Bug #12941: malloc: *** error for object 0x7fb4a88d2320: pointer being freed was not allocated
https://bugs.ruby-lang.org/issues/12941

* Author: Per Lundberg
* Status: Open
* Priority: Normal
* Assignee: 
* ruby -v: ruby 2.3.1p112 (2016-04-26 revision 54768) [x86_64-darwin15]
* Backport: 2.1: UNKNOWN, 2.2: UNKNOWN, 2.3: UNKNOWN
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I am _occasionally_ seeing issues like this:

~~~
ruby /Users/plundberg/.rvm/gems/ruby-2.3.1/bin/rspec(63837,0x7fffd90c33c0) malloc: *** error for object 0x7fb4a88d2320: pointer being freed was not allocated
*** set a breakpoint in malloc_error_break to debug
Abort trap: 6
~~~

This is unfortunately in a non-FOSS repo, but I can provide the spec_helper and Gemfile* if it helps. Any immediate suggestions?




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