5af64ff7db
enumerator_block_call was not safe for compaction because the Array
backing the argv was not pinned, so it could get moved during compaction
which would make argv point to somewhere else.
The test crashes when RGENGC_CHECK_MODE is turned on:
TestEnumerator#test_with_index_under_gc_compact_stress
check_rvalue_consistency: 0x55db0b399450 is not a Ruby object.
test/ruby/test_enumerator.rb:133: [BUG] check_rvalue_consistency_force: there is 1 errors.
ruby 3.3.0dev (2023-12-23T23:00:27Z master 50bf437341) [x86_64-linux]
-- Control frame information -----------------------------------------------
c:0034 p:---- s:0192 e:000187 CFUNC :with_index
c:0033 p:---- s:0185 e:000184 CFUNC :each
c:0032 p:---- s:0182 e:000181 CFUNC :to_a
c:0031 p:0055 s:0178 e:000175 BLOCK test/ruby/test_enumerator.rb:133
c:0030 p:0024 s:0172 e:000171 METHOD tool/lib/envutil.rb:242
c:0029 p:0024 s:0167 e:000166 METHOD tool/lib/envutil.rb:251
c:0028 p:0005 s:0160 e:000159 METHOD test/ruby/test_enumerator.rb:131
...
-- C level backtrace information -------------------------------------------
build/ruby(rb_print_backtrace+0x14) [0x55db0b1deb21] vm_dump.c:820
build/ruby(rb_vm_bugreport) vm_dump.c:1151
build/ruby(bug_report_end+0x0) [0x55db0b3a53a6] error.c:1042
build/ruby(rb_bug_without_die) error.c:1042
build/ruby(die+0x0) [0x55db0afc77c2] error.c:1050
build/ruby(rb_bug) error.c:1052
build/ruby(gc_move+0x0) [0x55db0afbada0] gc.c:1714
build/ruby(check_rvalue_consistency+0xa) [0x55db0afef0c3] gc.c:1729
build/ruby(is_markable_object) gc.c:4769
build/ruby(gc_mark_stack_values) gc.c:6595
build/ruby(rb_gc_mark_vm_stack_values) gc.c:6605
build/ruby(rb_execution_context_mark+0x39) [0x55db0b1d8589] vm.c:3309
build/ruby(thread_mark+0x15) [0x55db0b1a9805] vm.c:3381
build/ruby(gc_mark_stacked_objects+0x6d) [0x55db0aff2c3d] gc.c:7564
build/ruby(gc_mark_stacked_objects_all) gc.c:7602
build/ruby(gc_marks_rest) gc.c:8797
build/ruby(gc_marks+0xd) [0x55db0aff43d5] gc.c:8855
build/ruby(gc_start) gc.c:9608
build/ruby(rb_multi_ractor_p+0x0) [0x55db0aff5463] gc.c:9489
build/ruby(rb_vm_lock_leave) vm_sync.h:92
build/ruby(garbage_collect) gc.c:9491
build/ruby(newobj_slowpath+0xcb) [0x55db0aff57ab] gc.c:2871
build/ruby(newobj_slowpath_wb_protected) gc.c:2895
build/ruby(newobj_of0+0x24) [0x55db0aff59e4] gc.c:2937
build/ruby(newobj_of) gc.c:2947
build/ruby(rb_wb_protected_newobj_of) gc.c:2962
build/ruby(ary_alloc_embed+0x10) [0x55db0b2f3e40] array.c:668
build/ruby(ary_new) array.c:709
build/ruby(rb_ary_tmp_new_from_values) array.c:759
build/ruby(rb_ary_new_from_values) array.c:771
build/ruby(args_copy+0x18) [0x55db0b1bbb88] vm_args.c:158
What is Ruby?
Ruby is an interpreted object-oriented programming language often used for web development. It also offers many scripting features to process plain text and serialized files, or manage system tasks. It is simple, straightforward, and extensible.
Features of Ruby
- Simple Syntax
- Normal Object-oriented Features (e.g. class, method calls)
- Advanced Object-oriented Features (e.g. mix-in, singleton-method)
- Operator Overloading
- Exception Handling
- Iterators and Closures
- Garbage Collection
- Dynamic Loading of Object Files (on some architectures)
- Highly Portable (works on many Unix-like/POSIX compatible platforms as well as Windows, macOS, etc.) cf. https://docs.ruby-lang.org/en/master/maintainers_md.html#label-Platform+Maintainers
How to get Ruby
For a complete list of ways to install Ruby, including using third-party tools like rvm, see:
https://www.ruby-lang.org/en/downloads/
You can download release packages and the snapshot of the repository. If you want to download whole versions of Ruby, please visit https://www.ruby-lang.org/en/downloads/releases/.
Download with Git
The mirror of the Ruby source tree can be checked out with the following command:
$ git clone https://github.com/ruby/ruby.git
There are some other branches under development. Try the following command to see the list of branches:
$ git ls-remote https://github.com/ruby/ruby.git
You may also want to use https://git.ruby-lang.org/ruby.git (actual master of Ruby source) if you are a committer.
How to build
See Building Ruby
Ruby home page
Documentation
Mailing list
There is a mailing list to discuss Ruby. To subscribe to this list, please send the following phrase:
join
in the mail subject (not body) to the address ruby-talk-request@ml.ruby-lang.org.
Copying
See the file COPYING.
Feedback
Questions about the Ruby language can be asked on the Ruby-Talk mailing list or on websites like https://stackoverflow.com.
Bugs should be reported at https://bugs.ruby-lang.org. Read "Reporting Issues" for more information.
Contributing
See "Contributing to Ruby", which includes setup and build instructions.
The Author
Ruby was originally designed and developed by Yukihiro Matsumoto (Matz) in 1995.