From: Eric Wong Date: 2014-12-13T01:55:56+00:00 Subject: [ruby-core:66820] Re: [ruby-changes:36667] normal:r48748 (trunk): struct: avoid all O(n) behavior on access I found some more time but still haven't been able to reproduce the issue. Maybe r48754 fixed it, but I still cannot reproduce the error without r48754 (rb_iseq_t * => VALUE) I also tried: "make dist RELNAME=trunk@48753" with success (using ruby 2.1.5 to build) This is mysterious...