Issue #15490 has been updated by a_bicky (Takeshi Arabiki).


I got a similar issue.

I uploaded a reproducible code and a crash report.
https://gist.github.com/abicky/1263fd5c7d39db257f663382970bc2b0

I hope they help.


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Bug #15490: socket.rb - recurring segmentation faults
https://bugs.ruby-lang.org/issues/15490#change-81996

* Author: matthew.oriordan (Matthew O'Riordan)
* Status: Third Party's Issue
* Priority: Normal
* Assignee: 
* Target version: 
* ruby -v: ruby 2.5.0p0 (2017-12-25 revision 61468) [x86_64-darwin18], ruby 2.6.3p62 (2019-04-16 revision 67580) [x86_64-darwin18], ruby 2.5.0p0 (2017-12-25 revision 61468) [x86_64-linux]
* Backport: 2.4: UNKNOWN, 2.5: UNKNOWN, 2.6: UNKNOWN
----------------------------------------
With Ruby 2.5.3p105 and now with Ruby 2.6.0 following our recent upgrade, we are sadly still seeing reasonably frequent segmentation faults from Ruby, specifically within socket.rb

Looking in socket.rb, it seems it's related to the address lookup:

    Addrinfo.getaddrinfo(nodename, service, family, socktype, protocol, flags).each(&block)

Segfault report below in full.  Attached are diagnostic reports too.  If there is anything I can do to help reproduce I will, however sadly I have never been able to reproduce reliably, yet sadly it happens once every few days.


---Files--------------------------------
ruby_2018-12-31-032126-2_MacBook-Pro.crash (46.8 KB)
ruby_2018-12-31-032126-3_MacBook-Pro.crash (46.8 KB)
ruby_2018-12-31-032126-1_MacBook-Pro.crash (46.8 KB)
ruby_2018-12-31-032125_MacBook-Pro.crash (46.8 KB)
bug-15490.log (833 KB)


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