Issue #20496 has been updated by k0kubun (Takashi Kokubun). Status changed from Open to Assigned Assignee set to yjit ---------------------------------------- Bug #20496: Segfault when enabling YJIT https://bugs.ruby-lang.org/issues/20496#change-108353 * Author: gettalong (Thomas Leitner) * Status: Assigned * Assignee: yjit * ruby -v: ruby 3.4.0dev (2024-05-19T03:08:35Z master 7afc16aa48) [x86_64-linux] * Backport: 3.1: UNKNOWN, 3.2: UNKNOWN, 3.3: UNKNOWN ---------------------------------------- I installed Ruby 3.4-dev via rbenv to see how the improvements in YJIT with 3.4-dev (after reading https://speakerdeck.com/k0kubun/rubykaigi-2024) translate to other parts of HexaPDF. However, when running the HexaPDF optimization benchmark with YJIT enabled, it regularly segfaults. This does not happen without YJIT. ## Steps to reproduce * Clone the HexaPDF repository: `git clone git@github.com:gettalong/hexapdf.git` * Download the file `a.pdf` attached to this issue into the `hexapdf` directory. * Change into the `hexapdf` directory and run `ruby --yjit -I lib bin/hexapdf -f optimize --compress-pages a.pdf out.pdf`. * The run may not fail every time but it does fail with a segfault many times. ## Segfault output ``` /tmp/hexapdf/lib/hexapdf/task/optimize.rb:289: [BUG] Segmentation fault at 0x00000000000000b0 ruby 3.4.0dev (2024-05-19T03:08:35Z master 7afc16aa48) +YJIT [x86_64-linux] -- Control frame information ----------------------------------------------- c:0024 p:0016 s:0147 e:000142 METHOD /tmp/hexapdf/lib/hexapdf/task/optimize.rb:289 c:0023 p:0042 s:0136 e:000135 BLOCK /tmp/hexapdf/lib/hexapdf/content/parser.rb:192 c:0022 p:0017 s:0132 e:000131 METHOD <internal:kernel>:191 c:0021 p:0067 s:0127 e:000126 METHOD /tmp/hexapdf/lib/hexapdf/content/parser.rb:186 c:0020 p:0016 s:0118 e:000117 METHOD /tmp/hexapdf/lib/hexapdf/content/parser.rb:166 c:0019 p:0018 s:0111 E:002198 BLOCK /tmp/hexapdf/lib/hexapdf/task/optimize.rb:241 c:0018 p:0015 s:0105 e:000104 BLOCK /tmp/hexapdf/lib/hexapdf/type/page_tree_node.rb:243 c:0017 p:0007 s:0101 e:000100 BLOCK /tmp/hexapdf/lib/hexapdf/pdf_array.rb:183 [FINISH] c:0016 p:---- s:0097 e:000096 CFUNC :each_index c:0015 p:0018 s:0093 e:000092 METHOD /tmp/hexapdf/lib/hexapdf/pdf_array.rb:183 c:0014 p:0020 s:0089 e:000088 METHOD /tmp/hexapdf/lib/hexapdf/type/page_tree_node.rb:241 c:0013 p:0013 s:0084 e:000083 METHOD /tmp/hexapdf/lib/hexapdf/document/pages.rb:178 c:0012 p:0011 s:0079 E:0015a0 METHOD /tmp/hexapdf/lib/hexapdf/task/optimize.rb:236 c:0011 p:0009 s:0073 e:000072 METHOD /tmp/hexapdf/lib/hexapdf/task/optimize.rb:87 c:0010 p:0024 s:0061 e:000060 METHOD /tmp/hexapdf/lib/hexapdf/document.rb:570 c:0009 p:0031 s:0053 e:000052 METHOD /tmp/hexapdf/lib/hexapdf/cli/command.rb:276 c:0008 p:0011 s:0048 e:000047 BLOCK /tmp/hexapdf/lib/hexapdf/cli/optimize.rb:76 c:0007 p:0059 s:0044 e:000043 METHOD /tmp/hexapdf/lib/hexapdf/cli/command.rb:101 c:0006 p:0017 s:0033 e:000032 METHOD /tmp/hexapdf/lib/hexapdf/cli/optimize.rb:74 c:0005 p:0288 s:0027 e:000026 METHOD /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/gems/3.4.0+0/gems/cmdparse-3.0.7/lib/cmdparse.rb:889 c:0004 p:0023 s:0017 e:000016 METHOD /tmp/hexapdf/lib/hexapdf/cli.rb:146 c:0003 p:0012 s:0012 e:000011 METHOD /tmp/hexapdf/lib/hexapdf/cli.rb:63 c:0002 p:0010 s:0006 e:000005 EVAL bin/hexapdf:6 [FINISH] c:0001 p:0000 s:0003 E:000590 DUMMY [FINISH] -- Ruby level backtrace information ---------------------------------------- bin/hexapdf:6:in '<main>' /tmp/hexapdf/lib/hexapdf/cli.rb:63:in 'run' /tmp/hexapdf/lib/hexapdf/cli.rb:146:in 'parse' /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/gems/3.4.0+0/gems/cmdparse-3.0.7/lib/cmdparse.rb:889:in 'parse' /tmp/hexapdf/lib/hexapdf/cli/optimize.rb:74:in 'execute' /tmp/hexapdf/lib/hexapdf/cli/command.rb:101:in 'with_document' /tmp/hexapdf/lib/hexapdf/cli/optimize.rb:76:in 'block in execute' /tmp/hexapdf/lib/hexapdf/cli/command.rb:276:in 'apply_optimization_options' /tmp/hexapdf/lib/hexapdf/document.rb:570:in 'task' /tmp/hexapdf/lib/hexapdf/task/optimize.rb:87:in 'call' /tmp/hexapdf/lib/hexapdf/task/optimize.rb:236:in 'compress_pages' /tmp/hexapdf/lib/hexapdf/document/pages.rb:178:in 'each' /tmp/hexapdf/lib/hexapdf/type/page_tree_node.rb:241:in 'each_page' /tmp/hexapdf/lib/hexapdf/pdf_array.rb:183:in 'each' /tmp/hexapdf/lib/hexapdf/pdf_array.rb:183:in 'each_index' /tmp/hexapdf/lib/hexapdf/pdf_array.rb:183:in 'block in each' /tmp/hexapdf/lib/hexapdf/type/page_tree_node.rb:243:in 'block in each_page' /tmp/hexapdf/lib/hexapdf/task/optimize.rb:241:in 'block in compress_pages' /tmp/hexapdf/lib/hexapdf/content/parser.rb:166:in 'parse' /tmp/hexapdf/lib/hexapdf/content/parser.rb:186:in 'parse' <internal:kernel>:191:in 'loop' /tmp/hexapdf/lib/hexapdf/content/parser.rb:192:in 'block in parse' /tmp/hexapdf/lib/hexapdf/task/optimize.rb:289:in 'process' -- Threading information --------------------------------------------------- Total ractor count: 1 Ruby thread count for this ractor: 1 -- Machine register context ------------------------------------------------ RIP: 0x00005bc7f596320d RBP: 0x00005bc7f535cd18 RSP: 0x00007ffeb64795a0 RAX: 0x00000000000000b0 RBX: 0x00007b47a9eff4a8 RCX: 0x00005bc7f5315ee0 RDX: 0x0000000000000000 RDI: 0x0000000000000000 RSI: 0x0000000000000007 R8: 0x00007b478e8c56a8 R9: 0x00007b478e8934c8 R10: 0x64d5ad93872fbbfd R11: 0x00005bc7f3b57f50 R12: 0x00005bc7f5270470 R13: 0x00007b47a9ffead0 R14: 0x00005bc7f535cd28 R15: 0x00007b47a9ffeb40 EFL: 0x0000000000010202 -- C level backtrace information ------------------------------------------- /home/thomas/.rbenv/versions/3.4-dev/bin/ruby(rb_print_backtrace+0x14) [0x5bc7f38c2b13] /tmp/ruby-build.20240519133220.779813.9OK1gU/ruby-master/vm_dump.c:820 /home/thomas/.rbenv/versions/3.4-dev/bin/ruby(rb_vm_bugreport) /tmp/ruby-build.20240519133220.779813.9OK1gU/ruby-master/vm_dump.c:1151 /home/thomas/.rbenv/versions/3.4-dev/bin/ruby(rb_bug_for_fatal_signal+0xfc) [0x5bc7f3a7796c] /tmp/ruby-build.20240519133220.779813.9OK1gU/ruby-master/error.c:1108 /home/thomas/.rbenv/versions/3.4-dev/bin/ruby(sigsegv+0x46) [0x5bc7f3806916] /tmp/ruby-build.20240519133220.779813.9OK1gU/ruby-master/signal.c:929 /lib/x86_64-linux-gnu/libc.so.6(0x7b47aa645320) [0x7b47aa645320] [0x5bc7f596320d] -- Other runtime information ----------------------------------------------- * Loaded script: bin/hexapdf * Loaded features: 0 enumerator.so 1 thread.rb 2 fiber.so 3 rational.so 4 complex.so 5 ruby2_keywords.rb 6 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/x86_64-linux/enc/encdb.so 7 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/x86_64-linux/enc/trans/transdb.so 8 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/x86_64-linux/rbconfig.rb 9 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/rubygems/compatibility.rb 10 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/rubygems/defaults.rb 11 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/rubygems/deprecate.rb 12 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/rubygems/errors.rb 13 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/rubygems/unknown_command_spell_checker.rb 14 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/rubygems/exceptions.rb 15 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/rubygems/basic_specification.rb 16 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/rubygems/stub_specification.rb 17 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/rubygems/platform.rb 18 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/rubygems/specification_record.rb 19 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/rubygems/util/list.rb 20 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/rubygems/version.rb 21 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/rubygems/requirement.rb 22 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/rubygems/specification.rb 23 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/rubygems/util.rb 24 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/rubygems/dependency.rb 25 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/rubygems/core_ext/kernel_gem.rb 26 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/x86_64-linux/monitor.so 27 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/monitor.rb 28 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/rubygems.rb 29 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/bundled_gems.rb 30 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/rubygems/path_support.rb 31 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/error_highlight/version.rb 32 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/error_highlight/base.rb 33 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/error_highlight/formatter.rb 34 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/error_highlight/core_ext.rb 35 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/error_highlight.rb 36 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/did_you_mean/version.rb 37 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/did_you_mean/core_ext/name_error.rb 38 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/did_you_mean/levenshtein.rb 39 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/did_you_mean/jaro_winkler.rb 40 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/did_you_mean/spell_checker.rb 41 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/did_you_mean/spell_checkers/name_error_checkers/class_name_checker.rb 42 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/did_you_mean/spell_checkers/name_error_checkers/variable_name_checker.rb 43 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/did_you_mean/spell_checkers/name_error_checkers.rb 44 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/did_you_mean/spell_checkers/method_name_checker.rb 45 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/did_you_mean/spell_checkers/key_error_checker.rb 46 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/did_you_mean/spell_checkers/null_checker.rb 47 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/did_you_mean/tree_spell_checker.rb 48 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/did_you_mean/spell_checkers/require_path_checker.rb 49 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/did_you_mean/spell_checkers/pattern_key_name_checker.rb 50 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/did_you_mean/formatter.rb 51 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/did_you_mean.rb 52 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/syntax_suggest/core_ext.rb 53 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/optparse.rb 54 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/gems/3.4.0+0/gems/cmdparse-3.0.7/lib/cmdparse.rb 55 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/x86_64-linux/io/console.so 56 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/ostruct.rb 57 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/x86_64-linux/stringio.so 58 /tmp/hexapdf/lib/hexapdf/error.rb 59 /tmp/hexapdf/lib/hexapdf/data_dir.rb 60 /tmp/hexapdf/lib/hexapdf/content.rb 61 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/set.rb 62 /tmp/hexapdf/lib/hexapdf/font/invalid_glyph.rb 63 /tmp/hexapdf/lib/hexapdf/configuration.rb 64 /tmp/hexapdf/lib/hexapdf/reference.rb 65 /tmp/hexapdf/lib/hexapdf/object.rb 66 /tmp/hexapdf/lib/hexapdf/pdf_array.rb 67 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/x86_64-linux/date_core.so 68 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/date.rb 69 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/time.rb 70 /tmp/hexapdf/lib/hexapdf/rectangle.rb 71 /tmp/hexapdf/lib/hexapdf/utils/pdf_doc_encoding.rb 72 /tmp/hexapdf/lib/hexapdf/dictionary_fields.rb 73 /tmp/hexapdf/lib/hexapdf/dictionary.rb 74 /tmp/hexapdf/lib/hexapdf/filter.rb 75 /tmp/hexapdf/lib/hexapdf/stream.rb 76 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/x86_64-linux/strscan.so 77 /tmp/hexapdf/lib/hexapdf/tokenizer.rb 78 /tmp/hexapdf/lib/hexapdf/utils/object_hash.rb 79 /tmp/hexapdf/lib/hexapdf/xref_section.rb 80 /tmp/hexapdf/lib/hexapdf/parser.rb 81 /tmp/hexapdf/lib/hexapdf/revision.rb 82 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/digest/version.rb 83 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/x86_64-linux/digest.so 84 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/digest/loader.rb 85 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/digest.rb 86 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/x86_64-linux/digest/md5.so 87 /tmp/hexapdf/lib/hexapdf/type/trailer.rb 88 /tmp/hexapdf/lib/hexapdf/revisions.rb 89 /tmp/hexapdf/lib/hexapdf/type/actions.rb 90 /tmp/hexapdf/lib/hexapdf/type/annotations.rb 91 /tmp/hexapdf/lib/hexapdf/type.rb 92 /tmp/hexapdf/lib/hexapdf/task.rb 93 /tmp/hexapdf/lib/hexapdf/encryption.rb 94 /tmp/hexapdf/lib/hexapdf/utils/lru_cache.rb 95 /tmp/hexapdf/lib/hexapdf/serializer.rb 96 /tmp/hexapdf/lib/hexapdf/version.rb 97 /tmp/hexapdf/lib/hexapdf/writer.rb 98 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/delegate.rb 99 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/weakref.rb 100 /tmp/hexapdf/lib/hexapdf/importer.rb 101 /tmp/hexapdf/lib/hexapdf/image_loader.rb 102 /tmp/hexapdf/lib/hexapdf/font_loader.rb 103 /tmp/hexapdf/lib/hexapdf/layout.rb 104 /tmp/hexapdf/lib/hexapdf/digital_signature.rb 105 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/gems/3.4.0+0/gems/geom2d-0.4.1/lib/geom2d/utils.rb 106 /tmp/hexapdf/lib/hexapdf/utils.rb 107 /tmp/hexapdf/lib/hexapdf/document.rb 108 /tmp/hexapdf/lib/hexapdf/font/true_type.rb 109 /tmp/hexapdf/lib/hexapdf/cli/command.rb 110 /tmp/hexapdf/lib/hexapdf/cli/info.rb 111 /tmp/hexapdf/lib/hexapdf/cli/files.rb 112 /tmp/hexapdf/lib/hexapdf/content/color_space.rb 113 /tmp/hexapdf/lib/hexapdf/utils/math_helpers.rb 114 /tmp/hexapdf/lib/hexapdf/content/transformation_matrix.rb 115 /tmp/hexapdf/lib/hexapdf/content/graphics_state.rb 116 /tmp/hexapdf/lib/hexapdf/content/operator.rb 117 /tmp/hexapdf/lib/hexapdf/content/processor.rb 118 /tmp/hexapdf/lib/hexapdf/cli/inspect.rb 119 /tmp/hexapdf/lib/hexapdf/cli/modify.rb 120 /tmp/hexapdf/lib/hexapdf/cli/merge.rb 121 /tmp/hexapdf/lib/hexapdf/cli/optimize.rb 122 /tmp/hexapdf/lib/hexapdf/cli/images.rb 123 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/shellwords.rb 124 /tmp/hexapdf/lib/hexapdf/cli/batch.rb 125 /tmp/hexapdf/lib/hexapdf/cli/split.rb 126 /tmp/hexapdf/lib/hexapdf/cli/watermark.rb 127 /tmp/hexapdf/lib/hexapdf/cli/image2pdf.rb 128 /tmp/hexapdf/lib/hexapdf/cli/form.rb 129 /tmp/hexapdf/lib/hexapdf/cli/fonts.rb 130 /tmp/hexapdf/lib/hexapdf/cli/usage.rb 131 /tmp/hexapdf/lib/hexapdf/cli.rb 132 /tmp/hexapdf/lib/hexapdf/encryption/security_handler.rb 133 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/x86_64-linux/digest/sha2.so 134 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/digest/sha2/loader.rb 135 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/digest/sha2.rb 136 /tmp/hexapdf/lib/hexapdf/encryption/standard_security_handler.rb 137 /tmp/hexapdf/lib/hexapdf/type/page_tree_node.rb 138 /tmp/hexapdf/lib/hexapdf/document/pages.rb 139 /tmp/hexapdf/lib/hexapdf/utils/sorted_tree_node.rb 140 /tmp/hexapdf/lib/hexapdf/number_tree_node.rb 141 /tmp/hexapdf/lib/hexapdf/type/catalog.rb 142 /tmp/hexapdf/lib/hexapdf/type/page.rb 143 /tmp/hexapdf/lib/hexapdf/type/resources.rb 144 /tmp/hexapdf/lib/hexapdf/font/cmap.rb 145 /tmp/hexapdf/lib/hexapdf/type/font.rb 146 /tmp/hexapdf/lib/hexapdf/font/encoding.rb 147 /tmp/hexapdf/lib/hexapdf/type/font_simple.rb 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/home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/x86_64-linux/enc/encdb.so 7b47aaa78000-7b47aaa79000 rw-p 00003000 fc:01 27824254 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/x86_64-linux/enc/encdb.so 7b47aaa79000-7b47aaa80000 r--s 00000000 fc:01 19160541 /usr/lib/x86_64-linux-gnu/gconv/gconv-modules.cache 7b47aaa80000-7b47aaa90000 rw-p 00000000 00:00 0 7b47aaa91000-7b47aaa93000 rw-p 00000000 00:00 0 7b47aaa93000-7b47aaa94000 r--p 00000000 fc:01 19160549 /usr/lib/x86_64-linux-gnu/ld-linux-x86-64.so.2 7b47aaa94000-7b47aaabf000 r-xp 00001000 fc:01 19160549 /usr/lib/x86_64-linux-gnu/ld-linux-x86-64.so.2 7b47aaabf000-7b47aaac9000 r--p 0002c000 fc:01 19160549 /usr/lib/x86_64-linux-gnu/ld-linux-x86-64.so.2 7b47aaac9000-7b47aaacb000 r--p 00036000 fc:01 19160549 /usr/lib/x86_64-linux-gnu/ld-linux-x86-64.so.2 7b47aaacb000-7b47aaacd000 rw-p 00038000 fc:01 19160549 /usr/lib/x86_64-linux-gnu/ld-linux-x86-64.so.2 7ffeb5c7e000-7ffeb647d000 rw-p 00000000 00:00 0 [stack] 7ffeb65b1000-7ffeb65b5000 r--p 00000000 00:00 0 [vvar] 7ffeb65b5000-7ffeb65b7000 r-xp 00000000 00:00 0 [vdso] ffffffffff600000-ffffffffff601000 --xp 00000000 00:00 0 [vsyscall] ``` ---Files-------------------------------- a.pdf (51.8 KB) -- https://bugs.ruby-lang.org/

Issue #20496 has been updated by k0kubun (Takashi Kokubun). Backport changed from 3.1: UNKNOWN, 3.2: UNKNOWN, 3.3: UNKNOWN to 3.1: UNKNOWN, 3.2: UNKNOWN, 3.3: DONE ruby_3_3 commit:b74f669e2fbe5c63409878e7a9f9d39c8554ff77. ---------------------------------------- Bug #20496: Segfault when enabling YJIT https://bugs.ruby-lang.org/issues/20496#change-108620 * Author: gettalong (Thomas Leitner) * Status: Closed * Assignee: yjit * ruby -v: ruby 3.4.0dev (2024-05-19T03:08:35Z master 7afc16aa48) [x86_64-linux] * Backport: 3.1: UNKNOWN, 3.2: UNKNOWN, 3.3: DONE ---------------------------------------- I installed Ruby 3.4-dev via rbenv to see how the improvements in YJIT with 3.4-dev (after reading https://speakerdeck.com/k0kubun/rubykaigi-2024) translate to other parts of HexaPDF. However, when running the HexaPDF optimization benchmark with YJIT enabled, it regularly segfaults. This does not happen without YJIT. ## Steps to reproduce * Clone the HexaPDF repository: `git clone git@github.com:gettalong/hexapdf.git` * Download the file `a.pdf` attached to this issue into the `hexapdf` directory. * Change into the `hexapdf` directory and run `ruby --yjit -I lib bin/hexapdf -f optimize --compress-pages a.pdf out.pdf`. * The run may not fail every time but it does fail with a segfault many times. ## Segfault output ``` /tmp/hexapdf/lib/hexapdf/task/optimize.rb:289: [BUG] Segmentation fault at 0x00000000000000b0 ruby 3.4.0dev (2024-05-19T03:08:35Z master 7afc16aa48) +YJIT [x86_64-linux] -- Control frame information ----------------------------------------------- c:0024 p:0016 s:0147 e:000142 METHOD /tmp/hexapdf/lib/hexapdf/task/optimize.rb:289 c:0023 p:0042 s:0136 e:000135 BLOCK /tmp/hexapdf/lib/hexapdf/content/parser.rb:192 c:0022 p:0017 s:0132 e:000131 METHOD <internal:kernel>:191 c:0021 p:0067 s:0127 e:000126 METHOD /tmp/hexapdf/lib/hexapdf/content/parser.rb:186 c:0020 p:0016 s:0118 e:000117 METHOD /tmp/hexapdf/lib/hexapdf/content/parser.rb:166 c:0019 p:0018 s:0111 E:002198 BLOCK /tmp/hexapdf/lib/hexapdf/task/optimize.rb:241 c:0018 p:0015 s:0105 e:000104 BLOCK /tmp/hexapdf/lib/hexapdf/type/page_tree_node.rb:243 c:0017 p:0007 s:0101 e:000100 BLOCK /tmp/hexapdf/lib/hexapdf/pdf_array.rb:183 [FINISH] c:0016 p:---- s:0097 e:000096 CFUNC :each_index c:0015 p:0018 s:0093 e:000092 METHOD /tmp/hexapdf/lib/hexapdf/pdf_array.rb:183 c:0014 p:0020 s:0089 e:000088 METHOD /tmp/hexapdf/lib/hexapdf/type/page_tree_node.rb:241 c:0013 p:0013 s:0084 e:000083 METHOD /tmp/hexapdf/lib/hexapdf/document/pages.rb:178 c:0012 p:0011 s:0079 E:0015a0 METHOD /tmp/hexapdf/lib/hexapdf/task/optimize.rb:236 c:0011 p:0009 s:0073 e:000072 METHOD /tmp/hexapdf/lib/hexapdf/task/optimize.rb:87 c:0010 p:0024 s:0061 e:000060 METHOD /tmp/hexapdf/lib/hexapdf/document.rb:570 c:0009 p:0031 s:0053 e:000052 METHOD /tmp/hexapdf/lib/hexapdf/cli/command.rb:276 c:0008 p:0011 s:0048 e:000047 BLOCK /tmp/hexapdf/lib/hexapdf/cli/optimize.rb:76 c:0007 p:0059 s:0044 e:000043 METHOD /tmp/hexapdf/lib/hexapdf/cli/command.rb:101 c:0006 p:0017 s:0033 e:000032 METHOD /tmp/hexapdf/lib/hexapdf/cli/optimize.rb:74 c:0005 p:0288 s:0027 e:000026 METHOD /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/gems/3.4.0+0/gems/cmdparse-3.0.7/lib/cmdparse.rb:889 c:0004 p:0023 s:0017 e:000016 METHOD /tmp/hexapdf/lib/hexapdf/cli.rb:146 c:0003 p:0012 s:0012 e:000011 METHOD /tmp/hexapdf/lib/hexapdf/cli.rb:63 c:0002 p:0010 s:0006 e:000005 EVAL bin/hexapdf:6 [FINISH] c:0001 p:0000 s:0003 E:000590 DUMMY [FINISH] -- Ruby level backtrace information ---------------------------------------- bin/hexapdf:6:in '<main>' /tmp/hexapdf/lib/hexapdf/cli.rb:63:in 'run' /tmp/hexapdf/lib/hexapdf/cli.rb:146:in 'parse' /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/gems/3.4.0+0/gems/cmdparse-3.0.7/lib/cmdparse.rb:889:in 'parse' /tmp/hexapdf/lib/hexapdf/cli/optimize.rb:74:in 'execute' /tmp/hexapdf/lib/hexapdf/cli/command.rb:101:in 'with_document' /tmp/hexapdf/lib/hexapdf/cli/optimize.rb:76:in 'block in execute' /tmp/hexapdf/lib/hexapdf/cli/command.rb:276:in 'apply_optimization_options' /tmp/hexapdf/lib/hexapdf/document.rb:570:in 'task' /tmp/hexapdf/lib/hexapdf/task/optimize.rb:87:in 'call' /tmp/hexapdf/lib/hexapdf/task/optimize.rb:236:in 'compress_pages' /tmp/hexapdf/lib/hexapdf/document/pages.rb:178:in 'each' /tmp/hexapdf/lib/hexapdf/type/page_tree_node.rb:241:in 'each_page' /tmp/hexapdf/lib/hexapdf/pdf_array.rb:183:in 'each' /tmp/hexapdf/lib/hexapdf/pdf_array.rb:183:in 'each_index' /tmp/hexapdf/lib/hexapdf/pdf_array.rb:183:in 'block in each' /tmp/hexapdf/lib/hexapdf/type/page_tree_node.rb:243:in 'block in each_page' /tmp/hexapdf/lib/hexapdf/task/optimize.rb:241:in 'block in compress_pages' /tmp/hexapdf/lib/hexapdf/content/parser.rb:166:in 'parse' /tmp/hexapdf/lib/hexapdf/content/parser.rb:186:in 'parse' <internal:kernel>:191:in 'loop' /tmp/hexapdf/lib/hexapdf/content/parser.rb:192:in 'block in parse' /tmp/hexapdf/lib/hexapdf/task/optimize.rb:289:in 'process' -- Threading information --------------------------------------------------- Total ractor count: 1 Ruby thread count for this ractor: 1 -- Machine register context ------------------------------------------------ RIP: 0x00005bc7f596320d RBP: 0x00005bc7f535cd18 RSP: 0x00007ffeb64795a0 RAX: 0x00000000000000b0 RBX: 0x00007b47a9eff4a8 RCX: 0x00005bc7f5315ee0 RDX: 0x0000000000000000 RDI: 0x0000000000000000 RSI: 0x0000000000000007 R8: 0x00007b478e8c56a8 R9: 0x00007b478e8934c8 R10: 0x64d5ad93872fbbfd R11: 0x00005bc7f3b57f50 R12: 0x00005bc7f5270470 R13: 0x00007b47a9ffead0 R14: 0x00005bc7f535cd28 R15: 0x00007b47a9ffeb40 EFL: 0x0000000000010202 -- C level backtrace information ------------------------------------------- /home/thomas/.rbenv/versions/3.4-dev/bin/ruby(rb_print_backtrace+0x14) [0x5bc7f38c2b13] /tmp/ruby-build.20240519133220.779813.9OK1gU/ruby-master/vm_dump.c:820 /home/thomas/.rbenv/versions/3.4-dev/bin/ruby(rb_vm_bugreport) /tmp/ruby-build.20240519133220.779813.9OK1gU/ruby-master/vm_dump.c:1151 /home/thomas/.rbenv/versions/3.4-dev/bin/ruby(rb_bug_for_fatal_signal+0xfc) [0x5bc7f3a7796c] /tmp/ruby-build.20240519133220.779813.9OK1gU/ruby-master/error.c:1108 /home/thomas/.rbenv/versions/3.4-dev/bin/ruby(sigsegv+0x46) [0x5bc7f3806916] /tmp/ruby-build.20240519133220.779813.9OK1gU/ruby-master/signal.c:929 /lib/x86_64-linux-gnu/libc.so.6(0x7b47aa645320) [0x7b47aa645320] [0x5bc7f596320d] -- Other runtime information ----------------------------------------------- * Loaded script: bin/hexapdf * Loaded features: 0 enumerator.so 1 thread.rb 2 fiber.so 3 rational.so 4 complex.so 5 ruby2_keywords.rb 6 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/x86_64-linux/enc/encdb.so 7 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/x86_64-linux/enc/trans/transdb.so 8 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/x86_64-linux/rbconfig.rb 9 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/rubygems/compatibility.rb 10 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/rubygems/defaults.rb 11 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/rubygems/deprecate.rb 12 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/rubygems/errors.rb 13 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/rubygems/unknown_command_spell_checker.rb 14 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/rubygems/exceptions.rb 15 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/rubygems/basic_specification.rb 16 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/rubygems/stub_specification.rb 17 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/rubygems/platform.rb 18 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/rubygems/specification_record.rb 19 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/rubygems/util/list.rb 20 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/rubygems/version.rb 21 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/rubygems/requirement.rb 22 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/rubygems/specification.rb 23 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/rubygems/util.rb 24 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/rubygems/dependency.rb 25 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/rubygems/core_ext/kernel_gem.rb 26 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/x86_64-linux/monitor.so 27 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/monitor.rb 28 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/rubygems.rb 29 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/bundled_gems.rb 30 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/rubygems/path_support.rb 31 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/error_highlight/version.rb 32 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/error_highlight/base.rb 33 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/error_highlight/formatter.rb 34 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/error_highlight/core_ext.rb 35 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/error_highlight.rb 36 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/did_you_mean/version.rb 37 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/did_you_mean/core_ext/name_error.rb 38 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/did_you_mean/levenshtein.rb 39 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/did_you_mean/jaro_winkler.rb 40 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/did_you_mean/spell_checker.rb 41 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/did_you_mean/spell_checkers/name_error_checkers/class_name_checker.rb 42 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/did_you_mean/spell_checkers/name_error_checkers/variable_name_checker.rb 43 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/did_you_mean/spell_checkers/name_error_checkers.rb 44 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/did_you_mean/spell_checkers/method_name_checker.rb 45 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/did_you_mean/spell_checkers/key_error_checker.rb 46 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/did_you_mean/spell_checkers/null_checker.rb 47 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/did_you_mean/tree_spell_checker.rb 48 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/did_you_mean/spell_checkers/require_path_checker.rb 49 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/did_you_mean/spell_checkers/pattern_key_name_checker.rb 50 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/did_you_mean/formatter.rb 51 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/did_you_mean.rb 52 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/syntax_suggest/core_ext.rb 53 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/optparse.rb 54 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/gems/3.4.0+0/gems/cmdparse-3.0.7/lib/cmdparse.rb 55 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/x86_64-linux/io/console.so 56 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/ostruct.rb 57 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/x86_64-linux/stringio.so 58 /tmp/hexapdf/lib/hexapdf/error.rb 59 /tmp/hexapdf/lib/hexapdf/data_dir.rb 60 /tmp/hexapdf/lib/hexapdf/content.rb 61 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/set.rb 62 /tmp/hexapdf/lib/hexapdf/font/invalid_glyph.rb 63 /tmp/hexapdf/lib/hexapdf/configuration.rb 64 /tmp/hexapdf/lib/hexapdf/reference.rb 65 /tmp/hexapdf/lib/hexapdf/object.rb 66 /tmp/hexapdf/lib/hexapdf/pdf_array.rb 67 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/x86_64-linux/date_core.so 68 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/date.rb 69 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/time.rb 70 /tmp/hexapdf/lib/hexapdf/rectangle.rb 71 /tmp/hexapdf/lib/hexapdf/utils/pdf_doc_encoding.rb 72 /tmp/hexapdf/lib/hexapdf/dictionary_fields.rb 73 /tmp/hexapdf/lib/hexapdf/dictionary.rb 74 /tmp/hexapdf/lib/hexapdf/filter.rb 75 /tmp/hexapdf/lib/hexapdf/stream.rb 76 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/x86_64-linux/strscan.so 77 /tmp/hexapdf/lib/hexapdf/tokenizer.rb 78 /tmp/hexapdf/lib/hexapdf/utils/object_hash.rb 79 /tmp/hexapdf/lib/hexapdf/xref_section.rb 80 /tmp/hexapdf/lib/hexapdf/parser.rb 81 /tmp/hexapdf/lib/hexapdf/revision.rb 82 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/digest/version.rb 83 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/x86_64-linux/digest.so 84 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/digest/loader.rb 85 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/digest.rb 86 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/x86_64-linux/digest/md5.so 87 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fc:01 19160558 /usr/lib/x86_64-linux-gnu/libm.so.6 7b47aa939000-7b47aa991000 r--p 0008f000 fc:01 19160558 /usr/lib/x86_64-linux-gnu/libm.so.6 7b47aa991000-7b47aa992000 r--p 000e7000 fc:01 19160558 /usr/lib/x86_64-linux-gnu/libm.so.6 7b47aa992000-7b47aa993000 rw-p 000e8000 fc:01 19160558 /usr/lib/x86_64-linux-gnu/libm.so.6 7b47aa993000-7b47aa995000 r--p 00000000 fc:01 19139159 /usr/lib/x86_64-linux-gnu/libcrypt.so.1.1.0 7b47aa995000-7b47aa9aa000 r-xp 00002000 fc:01 19139159 /usr/lib/x86_64-linux-gnu/libcrypt.so.1.1.0 7b47aa9aa000-7b47aa9c3000 r--p 00017000 fc:01 19139159 /usr/lib/x86_64-linux-gnu/libcrypt.so.1.1.0 7b47aa9c3000-7b47aa9c4000 r--p 0002f000 fc:01 19139159 /usr/lib/x86_64-linux-gnu/libcrypt.so.1.1.0 7b47aa9c4000-7b47aa9c5000 rw-p 00030000 fc:01 19139159 /usr/lib/x86_64-linux-gnu/libcrypt.so.1.1.0 7b47aa9c5000-7b47aa9cd000 rw-p 00000000 00:00 0 7b47aa9cd000-7b47aa9d7000 r--p 00000000 fc:01 19137956 /usr/lib/x86_64-linux-gnu/libgmp.so.10.5.0 7b47aa9d7000-7b47aaa3a000 r-xp 0000a000 fc:01 19137956 /usr/lib/x86_64-linux-gnu/libgmp.so.10.5.0 7b47aaa3a000-7b47aaa4f000 r--p 0006d000 fc:01 19137956 /usr/lib/x86_64-linux-gnu/libgmp.so.10.5.0 7b47aaa4f000-7b47aaa50000 r--p 00081000 fc:01 19137956 /usr/lib/x86_64-linux-gnu/libgmp.so.10.5.0 7b47aaa50000-7b47aaa51000 rw-p 00082000 fc:01 19137956 /usr/lib/x86_64-linux-gnu/libgmp.so.10.5.0 7b47aaa51000-7b47aaa53000 r--p 00000000 fc:01 19137328 /usr/lib/x86_64-linux-gnu/libz.so.1.3 7b47aaa53000-7b47aaa65000 r-xp 00002000 fc:01 19137328 /usr/lib/x86_64-linux-gnu/libz.so.1.3 7b47aaa65000-7b47aaa6b000 r--p 00014000 fc:01 19137328 /usr/lib/x86_64-linux-gnu/libz.so.1.3 7b47aaa6b000-7b47aaa6c000 r--p 0001a000 fc:01 19137328 /usr/lib/x86_64-linux-gnu/libz.so.1.3 7b47aaa6c000-7b47aaa6d000 rw-p 0001b000 fc:01 19137328 /usr/lib/x86_64-linux-gnu/libz.so.1.3 7b47aaa6f000-7b47aaa70000 r--p 00000000 fc:01 27824269 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/x86_64-linux/enc/trans/transdb.so 7b47aaa70000-7b47aaa71000 r-xp 00001000 fc:01 27824269 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/x86_64-linux/enc/trans/transdb.so 7b47aaa71000-7b47aaa72000 r--p 00002000 fc:01 27824269 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/x86_64-linux/enc/trans/transdb.so 7b47aaa72000-7b47aaa73000 r--p 00002000 fc:01 27824269 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/x86_64-linux/enc/trans/transdb.so 7b47aaa73000-7b47aaa74000 rw-p 00003000 fc:01 27824269 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/x86_64-linux/enc/trans/transdb.so 7b47aaa74000-7b47aaa75000 r--p 00000000 fc:01 27824254 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/x86_64-linux/enc/encdb.so 7b47aaa75000-7b47aaa76000 r-xp 00001000 fc:01 27824254 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/x86_64-linux/enc/encdb.so 7b47aaa76000-7b47aaa77000 r--p 00002000 fc:01 27824254 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/x86_64-linux/enc/encdb.so 7b47aaa77000-7b47aaa78000 r--p 00002000 fc:01 27824254 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/x86_64-linux/enc/encdb.so 7b47aaa78000-7b47aaa79000 rw-p 00003000 fc:01 27824254 /home/thomas/.rbenv/versions/3.4-dev/lib/ruby/3.4.0+0/x86_64-linux/enc/encdb.so 7b47aaa79000-7b47aaa80000 r--s 00000000 fc:01 19160541 /usr/lib/x86_64-linux-gnu/gconv/gconv-modules.cache 7b47aaa80000-7b47aaa90000 rw-p 00000000 00:00 0 7b47aaa91000-7b47aaa93000 rw-p 00000000 00:00 0 7b47aaa93000-7b47aaa94000 r--p 00000000 fc:01 19160549 /usr/lib/x86_64-linux-gnu/ld-linux-x86-64.so.2 7b47aaa94000-7b47aaabf000 r-xp 00001000 fc:01 19160549 /usr/lib/x86_64-linux-gnu/ld-linux-x86-64.so.2 7b47aaabf000-7b47aaac9000 r--p 0002c000 fc:01 19160549 /usr/lib/x86_64-linux-gnu/ld-linux-x86-64.so.2 7b47aaac9000-7b47aaacb000 r--p 00036000 fc:01 19160549 /usr/lib/x86_64-linux-gnu/ld-linux-x86-64.so.2 7b47aaacb000-7b47aaacd000 rw-p 00038000 fc:01 19160549 /usr/lib/x86_64-linux-gnu/ld-linux-x86-64.so.2 7ffeb5c7e000-7ffeb647d000 rw-p 00000000 00:00 0 [stack] 7ffeb65b1000-7ffeb65b5000 r--p 00000000 00:00 0 [vvar] 7ffeb65b5000-7ffeb65b7000 r-xp 00000000 00:00 0 [vdso] ffffffffff600000-ffffffffff601000 --xp 00000000 00:00 0 [vsyscall] ``` ---Files-------------------------------- a.pdf (51.8 KB) -- https://bugs.ruby-lang.org/