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December 2024

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[ruby-dev:52086] [Ruby master Bug#20489] Ractor behavior strange in ruby master
by nekoyama32767 (Jinsong Yu) 09 Jan '25

09 Jan '25

Issue #20489 has been reported by nekoyama32767 (Jinsong Yu). ---------------------------------------- Bug #20489: Ractor behavior strange in ruby master https://bugs.ruby-lang.org/issues/20489 * Author: nekoyama32767 (Jinsong Yu) * Status: Open * ruby -v: ruby 3.4.0dev (2024-05-14T01:58:31Z master 9d01f657b3) [x86_64-linux] * Backport: 3.1: UNKNOWN, 3.2: UNKNOWN, 3.3: UNKNOWN ---------------------------------------- This is a tarai program Run`./ruby tarai_ractor.rb 2 8` is to use 2 thread to run 8 times tarai function total, that means 4 times tarai for each ractor(thread). ``` GC.disable def split_len(len, split) ret = [] mod = len % split head = 0 tail = 0 split.times do |i| if head >= len break end k = 0 if i < mod then k = 1 end tail = tail + (len/split) + k ret.append(head...tail) head = tail end return ret end def ary_split(ary, split) return split_len(ary.length,split) end def item_check(item) if item[0] != nil 1 + item_check(item[0]) + item_check(item[1]) else 1 end end def tarai(x, y, z) = x <= y ? y : tarai(tarai(x-1, y, z), tarai(y-1, z, x), tarai(z-1, x, y)) times = ARGV[0].to_i split = ARGV[1].to_i p split_len(times, split) split_len(times, split).each.map do |sp| Ractor.new (sp) { s = _1 s.each do tarai(13, 7, 0) end } end.each(&:take) ``` The problem is in ruby 3.1.2 and ruby 3.3 `./ruby tarai_ractor.rb 1 1` has simiular execute time with `./ruby tarai_ractor.rb 8 8` because each thread only run 1 time of tarai function, like follow: ruby 3.1.2p20 (2022-04-12 revision 4491bb740a) [x86_64-linux]: ``` time ruby exp_ractor_tarai.rb 1 1 [0...1] <internal:ractor>:267: warning: Ractor is experimental, and the behavior may change in future versions of Ruby! Also there are many implementation issues. real 0m1.442s user 0m1.429s sys 0m0.014s time ruby exp_ractor_tarai.rb 8 8 [0...1, 1...2, 2...3, 3...4, 4...5, 5...6, 6...7, 7...8] <internal:ractor>:267: warning: Ractor is experimental, and the behavior may change in future versions of Ruby! Also there are many implementation issues. real 0m1.857s user 0m13.817s sys 0m0.041s ``` But in ruby master(ruby 3.4.0dev) ruby 3.4.0dev (2024-05-14T01:58:31Z master 9d01f657b3) [x86_64-linux] 1 ractor 1 tarai: ``` time ../ruby exp_ractor_tarai.rb 1 1 `RubyGems' were not loaded. `error_highlight' was not loaded. `did_you_mean' was not loaded. `syntax_suggest' was not loaded. [0...1] exp_ractor_tarai.rb:47: warning: Ractor is experimental, and the behavior may change in future versions of Ruby! Also there are many implementation issues. real 0m1.671s user 0m1.666s sys 0m0.005s ``` 8 ractor 8 tarai: ``` time ../ruby exp_ractor_tarai.rb 8 8 `RubyGems' were not loaded. `error_highlight' was not loaded. `did_you_mean' was not loaded. `syntax_suggest' was not loaded. [0...1, 1...2, 2...3, 3...4, 4...5, 5...6, 6...7, 7...8] exp_ractor_tarai.rb:47: warning: Ractor is experimental, and the behavior may change in future versions of Ruby! Also there are many implementation issues. real 0m18.408s user 1m58.659s sys 0m0.021s ``` And in ruby 3.4.0dev when run `time ../ruby exp_ractor_tarai.rb 16 16` 16 thread should be used in system monitoring while only 8 threads are used. Ruby 3.3 and Ruby 3.1.2 do not have this problem. ---Files-------------------------------- thead16_16.png (168 KB) thread16_8.png (165 KB) -- https://bugs.ruby-lang.org/

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[ruby-dev:52125] [Ruby master Bug#20888] TestGemRemoteFetcherLocalSSLServer tests or so began to fail
by mtasaka (Mamoru TASAKA) 05 Dec '24

05 Dec '24

Issue #20888 has been reported by mtasaka (Mamoru TASAKA). ---------------------------------------- Bug #20888: TestGemRemoteFetcherLocalSSLServer tests or so began to fail https://bugs.ruby-lang.org/issues/20888 * Author: mtasaka (Mamoru TASAKA) * Status: Open * ruby -v: ruby 3.4.0dev (2024-11-12 master a6fdd8883c) +PRISM [x86_64-linux] * Backport: 3.1: UNKNOWN, 3.2: UNKNOWN, 3.3: UNKNOWN ---------------------------------------- With repeatedly trying to rebuild ruby master on Fedora copr build server, recently TestGemRemoteFetcherLocalSSLServer tests or so tests began to fail on x86_64 as: ``` 183) Failure: TestSocket_TCPSocket#test_initialize_with_connection_failure_after_hostname_resolution_failure [/builddir/build/BUILD/ruby-3.4.0_20241112.1157gitfee706d9dd-build/ruby-3.4.0-fee706d9dd/test/socket/test_tcp.rb:318]: [Errno::ECONNREFUSED] exception expected, not #<Socket::ResolutionError: getaddrinfo(3): Non-recoverable failure in name resolution>. 184) Failure: TestSocket_TCPSocket#test_initialize_resolv_timeout_with_connection_failure [/builddir/build/BUILD/ruby-3.4.0_20241112.1157gitfee706d9dd-build/ruby-3.4.0-fee706d9dd/test/socket/test_tcp.rb:284]: [Errno::ETIMEDOUT] exception expected, not #<Errno::ECONNREFUSED: Connection refused - connect(2) for "localhost" port 39177>. 185) Failure: TestSocket_TCPSocket#test_initialize_with_hostname_resolution_failure_after_connection_failure [/builddir/build/BUILD/ruby-3.4.0_20241112.1157gitfee706d9dd-build/ruby-3.4.0-fee706d9dd/test/socket/test_tcp.rb:303]: [Socket::ResolutionError] exception expected, not #<Errno::ECONNREFUSED: Connection refused - connect(2) for "localhost" port 40983>. 186) Error: TestGemRemoteFetcherLocalSSLServer#test_ssl_connection_allow_verify_none: Gem::RemoteFetcher::FetchError: Errno::ECONNREFUSED: Failed to open TCP connection to localhost:34229 (Connection refused - connect(2) for "localhost" port 34229) (https://localhost:34229/yaml) /builddir/build/BUILD/ruby-3.4.0_20241112.1157gitfee706d9dd-build/ruby-3.4.0-fee706d9dd/lib/rubygems/remote_fetcher.rb:265:in 'Gem::RemoteFetcher#fetch_path' /builddir/build/BUILD/ruby-3.4.0_20241112.1157gitfee706d9dd-build/ruby-3.4.0-fee706d9dd/test/rubygems/test_gem_remote_fetcher_local_ssl_server.rb:103:in 'block in TestGemRemoteFetcherLocalSSLServer#test_ssl_connection_allow_verify_none' /builddir/build/BUILD/ruby-3.4.0_20241112.1157gitfee706d9dd-build/ruby-3.4.0-fee706d9dd/test/rubygems/test_gem_remote_fetcher_local_ssl_server.rb:145:in 'TestGemRemoteFetcherLocalSSLServer#with_configured_fetcher' /builddir/build/BUILD/ruby-3.4.0_20241112.1157gitfee706d9dd-build/ruby-3.4.0-fee706d9dd/test/rubygems/test_gem_remote_fetcher_local_ssl_server.rb:102:in 'TestGemRemoteFetcherLocalSSLServer#test_ssl_connection_allow_verify_none' 187) Error: TestSocket_TCPSocket#test_initialize_v6_hostname_resolution_failed_and_v4_hostname_resolution_is_success: Socket::ResolutionError: getaddrinfo(3): Non-recoverable failure in name resolution /builddir/build/BUILD/ruby-3.4.0_20241112.1157gitfee706d9dd-build/ruby-3.4.0-fee706d9dd/test/socket/test_tcp.rb:266:in 'TCPSocket#initialize' /builddir/build/BUILD/ruby-3.4.0_20241112.1157gitfee706d9dd-build/ruby-3.4.0-fee706d9dd/test/socket/test_tcp.rb:266:in 'IO.new' /builddir/build/BUILD/ruby-3.4.0_20241112.1157gitfee706d9dd-build/ruby-3.4.0-fee706d9dd/test/socket/test_tcp.rb:266:in '<main>' /builddir/build/BUILD/ruby-3.4.0_20241112.1157gitfee706d9dd-build/ruby-3.4.0-fee706d9dd/test/socket/test_tcp.rb:259:in 'TestSocket_TCPSocket#test_initialize_v6_hostname_resolution_failed_and_v4_hostname_resolution_is_success' 188) Error: TestSocket_TCPSocket#test_initialize_v6_hostname_resolved_earlier_and_v6_server_is_not_listening: Errno::ECONNREFUSED: Connection refused - connect(2) for "localhost" port 47167 /builddir/build/BUILD/ruby-3.4.0_20241112.1157gitfee706d9dd-build/ruby-3.4.0-fee706d9dd/test/socket/test_tcp.rb:222:in 'TCPSocket#initialize' /builddir/build/BUILD/ruby-3.4.0_20241112.1157gitfee706d9dd-build/ruby-3.4.0-fee706d9dd/test/socket/test_tcp.rb:222:in 'IO.new' /builddir/build/BUILD/ruby-3.4.0_20241112.1157gitfee706d9dd-build/ruby-3.4.0-fee706d9dd/test/socket/test_tcp.rb:222:in '<main>' /builddir/build/BUILD/ruby-3.4.0_20241112.1157gitfee706d9dd-build/ruby-3.4.0-fee706d9dd/test/socket/test_tcp.rb:213:in 'TestSocket_TCPSocket#test_initialize_v6_hostname_resolved_earlier_and_v6_server_is_not_listening' Finished tests in 692.000057s, 46.3801 tests/s, 9452.0484 assertions/s. 32095 tests, 6540818 assertions, 3 failures, 3 errors, 182 skips ``` ( From 1) to 182) are skipped tests ) Looks like * commit:821a5b966fbc2926dc3bf88b6ba09879fa35318e tests are successful * commit:a6fdd8883cab6b31357552db8a64cfb335678172 sees the above error * commit:fee706d9dd52d7f0444357259f33d335f21c980b sees the above error So looks like the culprit is between the above 2 commits. ( I suspect commit:4c270200dbc2a3a4511e8b793a033078afd6fb31 but not sure ) -- https://bugs.ruby-lang.org/

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