From: nobu@... Date: 2020-04-22T09:49:57+00:00 Subject: [ruby-core:98018] [Ruby master Bug#16807] Ruby 2.7 segfault loading sources under GC.stress Issue #16807 has been updated by nobu (Nobuyoshi Nakada). `ID` list in `NODE_SCOPE` seems corrupted. Maybe a GC compaction related issue? ---------------------------------------- Bug #16807: Ruby 2.7 segfault loading sources under GC.stress https://bugs.ruby-lang.org/issues/16807#change-85250 * Author: qnighy (Masaki Hara) * Status: Open * Priority: Normal * ruby -v: ruby 2.7.1p83 (2020-03-31 revision a0c7c23c9c) [x86_64-darwin19] * Backport: 2.5: UNKNOWN, 2.6: UNKNOWN, 2.7: UNKNOWN ---------------------------------------- Originally seen in https://github.com/protocolbuffers/protobuf/pull/7386, but reproduces without C extension. Reproduction: place these four files from [this gist](https://gist.github.com/qnighy/099a39e70e66d8b402b193d4b0471aee): - tests/ - gc_test.rb - generated_code_pb.rb - generated_code_proto2_pb.rb - lib/ - google/ - protobuf.rb Then I got the following: ``` $ ruby -Ilib tests/gc_test.rb /Users/qnighy/.rbenv/versions/2.7.1/lib/ruby/2.7.0/rubygems/core_ext/kernel_require.rb:72: [BUG] Segmentation fault at 0x00007fd23ba8e608 ruby 2.7.1p83 (2020-03-31 revision a0c7c23c9c) [x86_64-darwin19] -- Crash Report log information -------------------------------------------- See Crash Report log file under the one of following: * ~/Library/Logs/DiagnosticReports * /Library/Logs/DiagnosticReports for more details. Don't forget to include the above Crash Report log file in bug reports. -- Control frame information ----------------------------------------------- c:0007 p:---- s:0052 e:000051 CFUNC :require c:0006 p:0111 s:0047 e:000046 METHOD /Users/qnighy/.rbenv/versions/2.7.1/lib/ruby/2.7.0/rubygems/core_ext/kernel_require.rb:72 c:0005 p:0005 s:0031 e:000030 TOP /Users/qnighy/workdir/ruby-parse-failure/tests/generated_code_pb.rb:4 [FINISH] c:0004 p:---- s:0028 e:000027 CFUNC :require c:0003 p:0111 s:0023 e:000022 METHOD /Users/qnighy/.rbenv/versions/2.7.1/lib/ruby/2.7.0/rubygems/core_ext/kernel_require.rb:72 c:0002 p:0064 s:0007 E:000d38 EVAL tests/gc_test.rb:8 [FINISH] c:0001 p:0000 s:0003 E:001d80 (none) [FINISH] -- Ruby level backtrace information ---------------------------------------- tests/gc_test.rb:8:in `
' /Users/qnighy/.rbenv/versions/2.7.1/lib/ruby/2.7.0/rubygems/core_ext/kernel_require.rb:72:in `require' /Users/qnighy/.rbenv/versions/2.7.1/lib/ruby/2.7.0/rubygems/core_ext/kernel_require.rb:72:in `require' /Users/qnighy/workdir/ruby-parse-failure/tests/generated_code_pb.rb:4:in `' /Users/qnighy/.rbenv/versions/2.7.1/lib/ruby/2.7.0/rubygems/core_ext/kernel_require.rb:72:in `require' /Users/qnighy/.rbenv/versions/2.7.1/lib/ruby/2.7.0/rubygems/core_ext/kernel_require.rb:72:in `require' -- Machine register context ------------------------------------------------ rax: 0x00000000c27c19ab rbx: 0x0000000000000000 rcx: 0x00007fcc27c818b0 rdx: 0x00000000c27c19ab rdi: 0x0000000000000000 rsi: 0x00007fcc2a015c10 rbp: 0x00007ffeed341d80 rsp: 0x00007ffeed341d40 r8: 0x0000000000000000 r9: 0x0000000000000028 r10: 0x00007fcc27c0b030 r11: 0xffffffcd3acd8990 r12: 0x0000000000000000 r13: 0x0000000000000000 r14: 0x0000000000000000 r15: 0x0000000000000000 rip: 0x0000000102a3724e rfl: 0x0000000000010282 -- C level backtrace information ------------------------------------------- /Users/qnighy/.rbenv/versions/2.7.1/lib/libruby.2.7.dylib(rb_print_backtrace+0x19) [0x102be8a09] /Users/qnighy/.rbenv/versions/2.7.1/lib/libruby.2.7.dylib(rb_vm_bugreport+0xa8) [0x102be8ad8] /Users/qnighy/.rbenv/versions/2.7.1/lib/libruby.2.7.dylib(rb_bug_for_fatal_signal+0x1b5) [0x10296c485] /Users/qnighy/.rbenv/versions/2.7.1/lib/libruby.2.7.dylib(sig_do_nothing+0x0) [0x102b11540] /usr/lib/system/libsystem_platform.dylib(_sigtramp+0x1d) [0x7fff6a8435fd] /Users/qnighy/.rbenv/versions/2.7.1/lib/libruby.2.7.dylib(mark_ast_value+0x6e) [0x102a3724e] /Users/qnighy/.rbenv/versions/2.7.1/lib/libruby.2.7.dylib(iterate_buffer_elements+0x51) [0x102a37d81] /Users/qnighy/.rbenv/versions/2.7.1/lib/libruby.2.7.dylib(iterate_node_values+0x38) [0x102a36fb8] /Users/qnighy/.rbenv/versions/2.7.1/lib/libruby.2.7.dylib(rb_ast_mark+0x81) [0x102a371d1] /Users/qnighy/.rbenv/versions/2.7.1/lib/libruby.2.7.dylib(gc_mark_imemo+0x206) [0x1029a5ce6] /Users/qnighy/.rbenv/versions/2.7.1/lib/libruby.2.7.dylib(gc_mark_children+0x123) [0x102997173] /Users/qnighy/.rbenv/versions/2.7.1/lib/libruby.2.7.dylib(gc_mark_stacked_objects+0x79) [0x10299fe69] /Users/qnighy/.rbenv/versions/2.7.1/lib/libruby.2.7.dylib(gc_mark_stacked_objects_all+0x1b) [0x1029a0a4b] /Users/qnighy/.rbenv/versions/2.7.1/lib/libruby.2.7.dylib(gc_marks_rest+0x7f) [0x10299f74f] /Users/qnighy/.rbenv/versions/2.7.1/lib/libruby.2.7.dylib(gc_marks+0x67) [0x1029a18e7] /Users/qnighy/.rbenv/versions/2.7.1/lib/libruby.2.7.dylib(gc_start+0x364) [0x10299d944] /Users/qnighy/.rbenv/versions/2.7.1/lib/libruby.2.7.dylib(garbage_collect+0x24) [0x1029947d4] /Users/qnighy/.rbenv/versions/2.7.1/lib/libruby.2.7.dylib(garbage_collect_with_gvl+0x5f) [0x1029a63bf] /Users/qnighy/.rbenv/versions/2.7.1/lib/libruby.2.7.dylib(objspace_malloc_gc_stress+0x8a) [0x1029a635a] /Users/qnighy/.rbenv/versions/2.7.1/lib/libruby.2.7.dylib(objspace_xmalloc0+0x2a) [0x102997d4a] /Users/qnighy/.rbenv/versions/2.7.1/lib/libruby.2.7.dylib(ruby_xmalloc2_body+0x3c) [0x102997d0c] /Users/qnighy/.rbenv/versions/2.7.1/lib/libruby.2.7.dylib(ruby_xmalloc2+0x1d) [0x10299c84d] /Users/qnighy/.rbenv/versions/2.7.1/lib/libruby.2.7.dylib(str_new0+0x10b) [0x102b2ebfb] /Users/qnighy/.rbenv/versions/2.7.1/lib/libruby.2.7.dylib(rb_enc_str_new+0x50) [0x102b2eac0] /Users/qnighy/.rbenv/versions/2.7.1/lib/libruby.2.7.dylib(parser_str_new+0x64) [0x102a8e814] /Users/qnighy/.rbenv/versions/2.7.1/lib/libruby.2.7.dylib(parse_string+0x3a5) [0x102a89775] /Users/qnighy/.rbenv/versions/2.7.1/lib/libruby.2.7.dylib(parser_yylex+0xb4) [0x102a84c64] /Users/qnighy/.rbenv/versions/2.7.1/lib/libruby.2.7.dylib(yylex+0x34) [0x102a790e4] /Users/qnighy/.rbenv/versions/2.7.1/lib/libruby.2.7.dylib(ruby_yyparse+0x583) [0x102a69eb3] /Users/qnighy/.rbenv/versions/2.7.1/lib/libruby.2.7.dylib(yycompile0+0x15c) [0x102a8371c] /Users/qnighy/.rbenv/versions/2.7.1/lib/libruby.2.7.dylib(rb_suppress_tracing+0x14c) [0x102beb29c] /Users/qnighy/.rbenv/versions/2.7.1/lib/libruby.2.7.dylib(yycompile+0xb2) [0x102a812d2] /Users/qnighy/.rbenv/versions/2.7.1/lib/libruby.2.7.dylib(rb_parser_compile_file_path+0x7e) [0x102a811ee] /Users/qnighy/.rbenv/versions/2.7.1/lib/libruby.2.7.dylib(load_file_internal+0x777) [0x102b0a827] /Users/qnighy/.rbenv/versions/2.7.1/lib/libruby.2.7.dylib(rb_ensure+0x13c) [0x10297a54c] /Users/qnighy/.rbenv/versions/2.7.1/lib/libruby.2.7.dylib(load_file+0x6c) [0x102b0813c] /Users/qnighy/.rbenv/versions/2.7.1/lib/libruby.2.7.dylib(rb_parser_load_file+0x83) [0x102b07dd3] /Users/qnighy/.rbenv/versions/2.7.1/lib/libruby.2.7.dylib(load_iseq_eval+0x51) [0x1029ee9e1] /Users/qnighy/.rbenv/versions/2.7.1/lib/libruby.2.7.dylib(require_internal+0x505) [0x1029eca35] /Users/qnighy/.rbenv/versions/2.7.1/lib/libruby.2.7.dylib(rb_require_string+0x27) [0x1029ebbb7] /Users/qnighy/.rbenv/versions/2.7.1/lib/libruby.2.7.dylib(rb_f_require+0x19) [0x1029ebb89] /Users/qnighy/.rbenv/versions/2.7.1/lib/libruby.2.7.dylib(call_cfunc_1+0x30) [0x102bdd300] /Users/qnighy/.rbenv/versions/2.7.1/lib/libruby.2.7.dylib(vm_call_cfunc_with_frame+0x39b) [0x102bceb7b] /Users/qnighy/.rbenv/versions/2.7.1/lib/libruby.2.7.dylib(vm_call_cfunc+0x8c) [0x102bc5f9c] /Users/qnighy/.rbenv/versions/2.7.1/lib/libruby.2.7.dylib(vm_sendish+0xe8) [0x102bd4398] /Users/qnighy/.rbenv/versions/2.7.1/lib/libruby.2.7.dylib(vm_exec_core+0x3e0e) [0x102bab21e] /Users/qnighy/.rbenv/versions/2.7.1/lib/libruby.2.7.dylib(rb_vm_exec+0x192) [0x102bc0092] /Users/qnighy/.rbenv/versions/2.7.1/lib/libruby.2.7.dylib(rb_iseq_eval+0x30) [0x102bc1010] /Users/qnighy/.rbenv/versions/2.7.1/lib/libruby.2.7.dylib(load_iseq_eval+0xd6) [0x1029eea66] /Users/qnighy/.rbenv/versions/2.7.1/lib/libruby.2.7.dylib(require_internal+0x505) [0x1029eca35] /Users/qnighy/.rbenv/versions/2.7.1/lib/libruby.2.7.dylib(rb_require_string+0x27) [0x1029ebbb7] /Users/qnighy/.rbenv/versions/2.7.1/lib/libruby.2.7.dylib(rb_f_require+0x19) [0x1029ebb89] /Users/qnighy/.rbenv/versions/2.7.1/lib/libruby.2.7.dylib(call_cfunc_1+0x30) [0x102bdd300] /Users/qnighy/.rbenv/versions/2.7.1/lib/libruby.2.7.dylib(vm_call_cfunc_with_frame+0x39b) [0x102bceb7b] /Users/qnighy/.rbenv/versions/2.7.1/lib/libruby.2.7.dylib(vm_call_cfunc+0x8c) [0x102bc5f9c] /Users/qnighy/.rbenv/versions/2.7.1/lib/libruby.2.7.dylib(vm_call_method_each_type+0xd1) [0x102bc5601] /Users/qnighy/.rbenv/versions/2.7.1/lib/libruby.2.7.dylib(vm_call_method_each_type+0x365) [0x102bc5895] /Users/qnighy/.rbenv/versions/2.7.1/lib/libruby.2.7.dylib(vm_call_method+0x1a1) [0x102bc5331] /Users/qnighy/.rbenv/versions/2.7.1/lib/libruby.2.7.dylib(vm_call_general+0x2d) [0x102ba6b7d] /Users/qnighy/.rbenv/versions/2.7.1/lib/libruby.2.7.dylib(vm_sendish+0xe8) [0x102bd4398] /Users/qnighy/.rbenv/versions/2.7.1/lib/libruby.2.7.dylib(vm_exec_core+0x3e0e) [0x102bab21e] /Users/qnighy/.rbenv/versions/2.7.1/lib/libruby.2.7.dylib(rb_vm_exec+0x192) [0x102bc0092] /Users/qnighy/.rbenv/versions/2.7.1/lib/libruby.2.7.dylib(rb_iseq_eval_main+0x30) [0x102bc1150] /Users/qnighy/.rbenv/versions/2.7.1/lib/libruby.2.7.dylib(rb_ec_exec_node+0x12b) [0x102978c1b] /Users/qnighy/.rbenv/versions/2.7.1/lib/libruby.2.7.dylib(ruby_run_node+0x73) [0x102978ab3] /Users/qnighy/.rbenv/versions/2.7.1/bin/ruby(main+0x68) [0x1028b6f08] -- Other runtime information ----------------------------------------------- * Loaded script: tests/gc_test.rb * Loaded features: 0 enumerator.so 1 thread.rb 2 rational.so 3 complex.so 4 ruby2_keywords.rb 5 /Users/qnighy/.rbenv/versions/2.7.1/lib/ruby/2.7.0/x86_64-darwin19/enc/encdb.bundle 6 /Users/qnighy/.rbenv/versions/2.7.1/lib/ruby/2.7.0/x86_64-darwin19/enc/trans/transdb.bundle 7 /Users/qnighy/.rbenv/versions/2.7.1/lib/ruby/2.7.0/x86_64-darwin19/rbconfig.rb 8 /Users/qnighy/.rbenv/versions/2.7.1/lib/ruby/2.7.0/rubygems/compatibility.rb 9 /Users/qnighy/.rbenv/versions/2.7.1/lib/ruby/2.7.0/rubygems/defaults.rb 10 /Users/qnighy/.rbenv/versions/2.7.1/lib/ruby/2.7.0/rubygems/deprecate.rb 11 /Users/qnighy/.rbenv/versions/2.7.1/lib/ruby/2.7.0/rubygems/errors.rb 12 /Users/qnighy/.rbenv/versions/2.7.1/lib/ruby/2.7.0/rubygems/version.rb 13 /Users/qnighy/.rbenv/versions/2.7.1/lib/ruby/2.7.0/rubygems/requirement.rb 14 /Users/qnighy/.rbenv/versions/2.7.1/lib/ruby/2.7.0/rubygems/platform.rb 15 /Users/qnighy/.rbenv/versions/2.7.1/lib/ruby/2.7.0/rubygems/basic_specification.rb 16 /Users/qnighy/.rbenv/versions/2.7.1/lib/ruby/2.7.0/rubygems/stub_specification.rb 17 /Users/qnighy/.rbenv/versions/2.7.1/lib/ruby/2.7.0/rubygems/util.rb 18 /Users/qnighy/.rbenv/versions/2.7.1/lib/ruby/2.7.0/rubygems/text.rb 19 /Users/qnighy/.rbenv/versions/2.7.1/lib/ruby/2.7.0/rubygems/user_interaction.rb 20 /Users/qnighy/.rbenv/versions/2.7.1/lib/ruby/2.7.0/rubygems/specification_policy.rb 21 /Users/qnighy/.rbenv/versions/2.7.1/lib/ruby/2.7.0/rubygems/util/list.rb 22 /Users/qnighy/.rbenv/versions/2.7.1/lib/ruby/2.7.0/rubygems/specification.rb 23 /Users/qnighy/.rbenv/versions/2.7.1/lib/ruby/2.7.0/rubygems/exceptions.rb 24 /Users/qnighy/.rbenv/versions/2.7.1/lib/ruby/2.7.0/rubygems/bundler_version_finder.rb 25 /Users/qnighy/.rbenv/versions/2.7.1/lib/ruby/2.7.0/rubygems/dependency.rb 26 /Users/qnighy/.rbenv/versions/2.7.1/lib/ruby/2.7.0/rubygems/core_ext/kernel_gem.rb 27 /Users/qnighy/.rbenv/versions/2.7.1/lib/ruby/2.7.0/x86_64-darwin19/monitor.bundle 28 /Users/qnighy/.rbenv/versions/2.7.1/lib/ruby/2.7.0/monitor.rb 29 /Users/qnighy/.rbenv/versions/2.7.1/lib/ruby/2.7.0/rubygems/core_ext/kernel_require.rb 30 /Users/qnighy/.rbenv/versions/2.7.1/lib/ruby/2.7.0/rubygems/core_ext/kernel_warn.rb 31 /Users/qnighy/.rbenv/versions/2.7.1/lib/ruby/2.7.0/rubygems.rb 32 /Users/qnighy/.rbenv/versions/2.7.1/lib/ruby/2.7.0/rubygems/path_support.rb 33 /Users/qnighy/.rbenv/versions/2.7.1/lib/ruby/2.7.0/did_you_mean/version.rb 34 /Users/qnighy/.rbenv/versions/2.7.1/lib/ruby/2.7.0/did_you_mean/core_ext/name_error.rb 35 /Users/qnighy/.rbenv/versions/2.7.1/lib/ruby/2.7.0/did_you_mean/levenshtein.rb 36 /Users/qnighy/.rbenv/versions/2.7.1/lib/ruby/2.7.0/did_you_mean/jaro_winkler.rb 37 /Users/qnighy/.rbenv/versions/2.7.1/lib/ruby/2.7.0/did_you_mean/spell_checker.rb 38 /Users/qnighy/.rbenv/versions/2.7.1/lib/ruby/2.7.0/did_you_mean/spell_checkers/name_error_checkers/class_name_checker.rb 39 /Users/qnighy/.rbenv/versions/2.7.1/lib/ruby/2.7.0/did_you_mean/spell_checkers/name_error_checkers/variable_name_checker.rb 40 /Users/qnighy/.rbenv/versions/2.7.1/lib/ruby/2.7.0/did_you_mean/spell_checkers/name_error_checkers.rb 41 /Users/qnighy/.rbenv/versions/2.7.1/lib/ruby/2.7.0/did_you_mean/spell_checkers/method_name_checker.rb 42 /Users/qnighy/.rbenv/versions/2.7.1/lib/ruby/2.7.0/did_you_mean/spell_checkers/key_error_checker.rb 43 /Users/qnighy/.rbenv/versions/2.7.1/lib/ruby/2.7.0/did_you_mean/spell_checkers/null_checker.rb 44 /Users/qnighy/.rbenv/versions/2.7.1/lib/ruby/2.7.0/did_you_mean/formatters/plain_formatter.rb 45 /Users/qnighy/.rbenv/versions/2.7.1/lib/ruby/2.7.0/did_you_mean/tree_spell_checker.rb 46 /Users/qnighy/.rbenv/versions/2.7.1/lib/ruby/2.7.0/did_you_mean.rb * Process memory map: 1028b6000-1028b7000 r-x /Users/qnighy/.rbenv/versions/2.7.1/bin/ruby 1028b7000-1028b8000 r-- /Users/qnighy/.rbenv/versions/2.7.1/bin/ruby 1028b8000-1028b9000 rw- /Users/qnighy/.rbenv/versions/2.7.1/bin/ruby 1028b9000-1028ba000 r-- /Users/qnighy/.rbenv/versions/2.7.1/bin/ruby 1028ba000-1028bc000 rw- /Users/qnighy/.rbenv/versions/2.7.1/lib/libruby.2.7.dylib 1028bc000-102c97000 r-x /Users/qnighy/.rbenv/versions/2.7.1/lib/libruby.2.7.dylib 102c97000-102c9c000 r-- /Users/qnighy/.rbenv/versions/2.7.1/lib/libruby.2.7.dylib 102c9c000-102c9e000 rw- /Users/qnighy/.rbenv/versions/2.7.1/lib/libruby.2.7.dylib 102c9e000-102cb4000 rw- 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7fffc0000000-7fffffe00000 r-- /usr/lib/dyld 7fffffe00000-7fffffe01000 r-- /usr/lib/dyld 7fffffe62000-7fffffe63000 r-x /usr/lib/dyld [IMPORTANT] Don't forget to include the Crash Report log file under DiagnosticReports directory in bug reports. zsh: abort ruby -Ilib tests/gc_test.rb ``` This is seen in Linux too in the aforementioned pull request, but I couldn't reproduce it in my local Linux machine. Also reproduced with miniruby from the latest master (8474e6a). -- https://bugs.ruby-lang.org/ Unsubscribe: