Issue #15763 has been updated by mame (Yusuke Endoh). This might be the same issue as: * https://bugs.ruby-lang.org/issues/15490 * https://bugs.ruby-lang.org/issues/15639 * https://github.com/hanami/hanami/issues/993 The common points are: * macOS (darwin17 or 18) * uses multiple threads * segfault in getaddrinfo I could be wrong, but I suspect a bug of macOS's getaddrinfo. Can you show a short program that causes the segfault? ---------------------------------------- Bug #15763: Segmentation fault in timeout.rb / sleep https://bugs.ruby-lang.org/issues/15763#change-77576 * Author: stan-envato (Stan Pitucha) * Status: Open * Priority: Normal * Assignee: * Target version: * ruby -v: ruby 2.6.2p47 (2019-03-13 revision 67232) [x86_64-darwin18] * Backport: 2.4: UNKNOWN, 2.5: UNKNOWN, 2.6: UNKNOWN ---------------------------------------- I'm running into crashes on both ruby 2.6.1 and 2.6.2 (2.5.x is all good). I'm on OSX / mojave with ruby installed via rbenv / ruby-build. Confirmed on two different machines. The crash happens through the parallel gem, but it happens even if the number of processes is reduced to 1. Short summary: -- Control frame information ----------------------------------------------- c:0003 p:---- s:0011 e:000010 CFUNC :sleep c:0002 p:0025 s:0006 e:000005 BLOCK /Users/viraptor/.rbenv/versions/2.6.2/lib/ruby/2.6.0/timeout.rb:86 [FINISH] c:0001 p:---- s:0003 e:000002 (none) [FINISH] -- Ruby level backtrace information ---------------------------------------- /Users/viraptor/.rbenv/versions/2.6.2/lib/ruby/2.6.0/timeout.rb:86:in `block (2 levels) in timeout' /Users/viraptor/.rbenv/versions/2.6.2/lib/ruby/2.6.0/timeout.rb:86:in `sleep' The rest is in the logs. ---Files-------------------------------- crash_log (68.9 KB) ruby_2019-04-11-101832-3_Stans-MacBook-Pro.crash (44.7 KB) -- https://bugs.ruby-lang.org/ Unsubscribe: <mailto:ruby-core-request / ruby-lang.org?subject=unsubscribe> <http://lists.ruby-lang.org/cgi-bin/mailman/options/ruby-core>