Bug #13886: Seg Fault - eval - 59781 - MinGW

• Status: Closed
• Assignee: -
• Target version: -
• ruby -v: ruby 2.5.0dev (2017-09-08 trunk 59781) [x64-mingw32]
• Backport: 2.2: UNKNOWN, 2.3: UNKNOWN, 2.4: UNKNOWN

[MSP-Greg (Greg L)]

While updating my doc site (https://msp-greg.github.io/) using 59781, I had a seg fault from an RDoc call to eval. I also tried with 59792, same seg fault.

Isolated to the offending string...

Log is attached. Code I used is:

t = <<HEREDOC
BEGIN {return true}
class Person
  include ActiveModel::Validations
  validates_with MyValidator
end

class MyValidator < ActiveModel::Validator
  def validate(record)
    record # => The person instance being validated
    options # => Any non-standard options passed to validates_with
  end
end
HEREDOC

puts eval t

Running code with 89767 yields:

E:\>ruby -v E:/GitHub/gen-docs/seg_fault.rb
ruby 2.5.0dev (2017-09-07 trunk 59767) [x64-mingw32]
(eval):9: warning: possibly useless use of a variable in void context
Traceback (most recent call last):
        2: from E:/GitHub/gen-docs/seg_fault.rb:18:in `<main>'
        1: from E:/GitHub/gen-docs/seg_fault.rb:18:in `eval'
E:/GitHub/gen-docs/seg_fault.rb:18:in `eval': unexpected return (LocalJumpError)

Thanks.

[nobu (Nobuyoshi Nakada)]

• Status changed from Open to Closed

Applied in changeset trunk|r59828.

---

compile.c: pop coverage trace

• compile.c (iseq_compile_each0): pop trace for coverage only and
  clear its corresponding line. [ruby-core:82726] [Bug #13886]