- ruby-core - ml.ruby-lang.org

[ruby-core:121463] [Ruby Bug#21203] TestGc#test_gc_parameter_init_slots is flaky results
by hsbt (Hiroshi SHIBATA) 02 Apr '25

02 Apr '25

Issue #21203 has been reported by hsbt (Hiroshi SHIBATA). ---------------------------------------- Bug #21203: TestGc#test_gc_parameter_init_slots is flaky results https://bugs.ruby-lang.org/issues/21203 * Author: hsbt (Hiroshi SHIBATA) * Status: Open * Backport: 3.1: UNKNOWN, 3.2: UNKNOWN, 3.3: UNKNOWN, 3.4: UNKNOWN ---------------------------------------- I faced `TestGc#test_gc_parameter_init_slots` failure at everyday. https://github.com/ruby/ruby/actions/runs/14120822712/job/39560620479 ``` 1) Failure: TestGc#test_gc_parameter_init_slots [/home/runner/work/ruby/ruby/src/test/ruby/test_gc.rb:549]: <2> expected but was <3>. ``` -- https://bugs.ruby-lang.org/

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[ruby-core:121465] [Ruby Bug#21204] `TestEtc#test_ractor_parallel` is still flaky result
by hsbt (Hiroshi SHIBATA) 02 Apr '25

02 Apr '25

Issue #21204 has been reported by hsbt (Hiroshi SHIBATA). ---------------------------------------- Bug #21204: `TestEtc#test_ractor_parallel` is still flaky result https://bugs.ruby-lang.org/issues/21204 * Author: hsbt (Hiroshi SHIBATA) * Status: Open * Backport: 3.1: UNKNOWN, 3.2: UNKNOWN, 3.3: UNKNOWN, 3.4: UNKNOWN ---------------------------------------- https://github.com/ruby/ruby/actions/runs/14121185441/job/39561623937?pr=13… ``` 1) Failure: TestEtc#test_ractor_parallel [/home/runner/work/ruby/ruby/src/test/etc/test_etc.rb:178]: pid 150540 killed by SIGABRT (signal 6) (core dumped) | [BUG] pthread_mutex_lock: Owner died (EOWNERDEAD) | ruby 3.5.0dev (2025-03-28T03:13:46Z pull/13004/merge 4cfbc634ea) +PRISM +GC[mmtk] [x86_64-linux] | | -- Control frame information ----------------------------------------------- | | malloc_consolidate(): unaligned fastbin chunk detected | | -- Threading information --------------------------------------------------- | Total ractor count: 1 ``` -- https://bugs.ruby-lang.org/

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[ruby-core:121510] [Ruby Feature#14565] Simpler, one-liner, failsafe require in ruby? [Suggested names: require_failsafe, require_safe, require_try, require_add)
by jeromedalbert (Jerome Dalbert) 02 Apr '25

02 Apr '25

Issue #14565 has been updated by jeromedalbert (Jerome Dalbert). I like this feature request, a non-failing require would be great for gems that optionally depend on another gem. For example: ```ruby begin require 'rubocop-rspec' rescue LoadError end if defined?(RuboCop::RSpec) # ... end ``` could be turned into something like this ```ruby if require('rubocop-rspec', exception: false) # ... end ``` ---------------------------------------- Feature #14565: Simpler, one-liner, failsafe require in ruby? [Suggested names: require_failsafe, require_safe, require_try, require_add) https://bugs.ruby-lang.org/issues/14565#change-112532 * Author: shevegen (Robert A. Heiler) * Status: Open ---------------------------------------- I have quite a bit of code like this: ```ruby begin require 'x/tools/cdrskin.rb' rescue LoadError; end ``` I also use the longer variant, e.g., ```ruby begin require 'foobar' rescue LoadError puts 'project foobar is not available - consider '\ 'installing it via gem install foobar' end ``` Often, I do not need to inform the user about missing gems/projects that are tiny and not very important. In my larger ruby projects, I handle cases where a smaller project is not available or available, so I can proceed either way. It is a bit pointless to notify the user when that is me; that is why I would like to have a one-liner. I am thinking of an API such as any of the following: require_failsafe require_safe require_try require_add This is for loading with a rescue LoadError without notification. If I need to notify a user then I am fine with the longer variant. If anyone has better names, feel free to add them! I think people are more likely to remember the require-family, e. g. require 'foo.rb' or require_relative 'bar.rb' and so forth. --- I also wanted to propose a stronger `require`/`import`, including the possibility to refer to `.rb` files without a hardcoded path (if the .rb file is moved, all explicit requires to it, in particular from external projects, would have to change; and my vague idea is to replace this with some kind of project-specific way to "label" files and load these files based on these "labels", but that is for another suggestion; I only want to mention it because Hiroshi Shibata made some suggestion as extension to require, and I think the use case he mentioned may also be useful to see whether ruby may get a stronger "load code in files" functionality for ruby 3.x eventually). -- https://bugs.ruby-lang.org/

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[ruby-core:121508] [Ruby Bug#21213] [BUG] heap_idx_for_size: allocation size too large (size=145u, heap_idx=146u)
by jjs008 02 Apr '25

02 Apr '25

Issue #21213 has been reported by jjs008 (小龙江). ---------------------------------------- Bug #21213: [BUG] heap_idx_for_size: allocation size too large (size=145u, heap_idx=146u) https://bugs.ruby-lang.org/issues/21213 * Author: jjs008 (小龙江) * Status: Open * Backport: 3.1: UNKNOWN, 3.2: UNKNOWN, 3.3: UNKNOWN, 3.4: UNKNOWN ---------------------------------------- Failed to build ruby 3.4.2 after upgrade Visual C++ build Tools from 17.2 to 17.3.5. The logging file is as attachment. Use this build script https://github.com/jiangjianshan/msvc-pkg/blob/main/packages/ruby/build.bat and it work before upgrade Visual C++ toolsets. ---Files-------------------------------- ruby.txt (3.84 KB) -- https://bugs.ruby-lang.org/

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[ruby-core:121490] [Ruby Bug#21208] `Ractor#send(move: true)` allow moving objects that are on the stack, and used by C code.
by byroot (Jean Boussier) 01 Apr '25

01 Apr '25

Issue #21208 has been reported by byroot (Jean Boussier). ---------------------------------------- Bug #21208: `Ractor#send(move: true)` allow moving objects that are on the stack, and used by C code. https://bugs.ruby-lang.org/issues/21208 * Author: byroot (Jean Boussier) * Status: Open * Assignee: ractor * Backport: 3.1: UNKNOWN, 3.2: UNKNOWN, 3.3: UNKNOWN, 3.4: UNKNOWN ---------------------------------------- The following script causes a crash: ```ruby rac = Ractor.new do Ractor.receive end hash = Hash[*50.times] hash.merge!(12 => 0, 14 => 0) do |key, old_val, new_val| if key == 12 rac.send(hash, move: true) end new_val end p rac.take ``` Contrary to previous crashes related to `send(move: true)`, I'm afraid this one is with the design of the feature itself, not just the implementation. If we allow objects to be moved, any C code that calls `rb_yield()` may cause memory corruption if one of the objects it uses is moved. I personally can't see any realistic solution to this. -- https://bugs.ruby-lang.org/

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[ruby-core:121493] [Ruby Feature#15574] Prohibit to pass a block on super() implicitly
by headius (Charles Nutter) 31 Mar '25

31 Mar '25

Issue #15574 has been updated by headius (Charles Nutter). There's still a problem here when an "unused block" warning is emitted from native code. The current behavior is actually quite counter-intuitive. Take this example of extending `Array` and overriding `index`. ```ruby class MyArray def index(arg) yield super(arg) end end MyArray.new([1]).index(1) {p it} ``` On all recent versions of Ruby, this will warn: ``` $ cx 3.4 ruby -v blah.rb ruby 3.4.2 (2025-02-15 revision d2930f8e7a) +PRISM [arm64-darwin24] blah.rb:3: warning: given block not used 0 ``` The only way to eliminate the warning is to explicitly *prevent* the block from being passed using `super(arg, &nil)`: ```ruby def index(arg) yield super(arg, &nil) end ``` I see in https://bugs.ruby-lang.org/issues/15554 that this special "implicit block" behavior for `super()` has been explicitly ignored for warning purposes, but there's clearly some problematic cases remaining here. We just addressed a user bug report where the native method warned even if no block was explicitly passed to `super()`: https://github.com/jruby/jruby/issues/8728 ---------------------------------------- Feature #15574: Prohibit to pass a block on super() implicitly https://bugs.ruby-lang.org/issues/15574#change-112514 * Author: ko1 (Koichi Sasada) * Status: Rejected * Assignee: matz (Yukihiro Matsumoto) ---------------------------------------- As described in [Feature #15554], `super()` (not `super`) pass the given block. ``` class C def foo p block_given? end end class C1 < C def foo super #=> true super() #=> true end end C1.new.foo{} ``` `super` (without parameters) passes all passed parameters so it is no surprise to pass given block. However, `super()` (with parameters. In this case, it passes 0 parameters) also pass given block implicitly. I'm not sure who use this behavior, but I think it is simple to prohibit such implicit block passing. -- https://bugs.ruby-lang.org/

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[ruby-core:121491] [Ruby Feature#18784] `FileUtils.rm_f` and `FileUtils.rm_rf` should not mask exceptions
by deivid 31 Mar '25

31 Mar '25

Issue #18784 has been updated by deivid (David Rodríguez). I realized I never replied to latest objections from @mame to this feature. My use case is to make sure temporary test files and folders are cleaned after each test, because if they are not cleaned the following tests may not work as expected, since they rely on starting with an empty tmp folder. I'm not sure if that's "1) delete target at all costs" or "2) delete target if possible". I think it's "2), but raise an error if not possible". The kind of swallowed issues I've run into in the past are things like: * Keyword vs positional parameter error due to accidentally using a version of FileUtils not supported by my version of Ruby. * ENAMETOOLONG errors due to a bug in Ruby. Things I definitely wanted to know about because they made my tmp test folder not removed and affected subsequent specs in hard to debug ways. For these issues, `FileUtils.rm_rf` raising an error and not swallowing it would've helped, I didn't need any further retry/sleep/chmod manipulations, and they would have not helped my use case (because they would have not made any difference). By the way, I believe `FileUtils.rm_rf` on Windows seems to already have some of this chmod+retry behaviour @mame was mentioning: https://github.com/ruby/fileutils/blob/636975a184f07ccef31a0ffd9412be8fbb75…. I don't need nor like this behavior, but just mentioning it. In any case, I decided to stick to using `FileUtils.rm_r` and make sure I don't pass folders that don't exist as targets. That already has the exact behavior I'm asking for, so I'm fine with this issue being closed. ---------------------------------------- Feature #18784: `FileUtils.rm_f` and `FileUtils.rm_rf` should not mask exceptions https://bugs.ruby-lang.org/issues/18784#change-112511 * Author: deivid (David Rodríguez) * Status: Open ---------------------------------------- In recent times, I've been having issues with these methods because they don't let you know when some issue happened while trying to remove the given folders/files. IMO most users expect all pre-existing folders/files that are passed to these methods to be actually removed by the methods. Instead, when this happens, errors are silently swallowed and normally the result is that you will get some other issue further down the road, making the problem hard to debug. The current workaround I'm using is to double check whether the files still exist after the method, and raise a custom error if they do, but I still can't see the original problem, so issues are similarly hard to debug. This is also a deviation from how `rm -rf` and `rm -f` work, since these tools finish with a failure exit code when they fail to remove the given files. Given that `fileutils` is intended to mimic shell functionality, I think this is just a bug. I think the intention of the `force` flag here is to: * Don't prompt for confirmation. * Ignore given arguments that are not files that already exist. But any issue other than that should not be swallowed, and in general I think the method should succeed if and only if the given list of file names does not exist after the methods are done. I think this is in line with the following note I get when I run `man rm`, but also suggests that this is not the standard behavior of "historical implementations" > COMPATIBILITY > > The rm utility differs from historical implementations in that the -f option only masks attempts to remove non-existent files instead of masking a large variety of errors. I implemented this at https://github.com/ruby/fileutils/pull/58, but treating this as a bug. I can also implement a more conservative for approach for users that might be using `FileUtils.rm_rf` or `FileUtils.rm_f` but don't really care if the files are removed or not. Alternative proposals would be `FileUtils.rm_rf(force: strict)`, or `FileUtils.strict_rm_rf`, but to be honest, if this is considered a breaking change, I would ship it as a new major version, and let users update their code to swallow errors themselves if they need to. Happy to hear any feedback! -- https://bugs.ruby-lang.org/

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[ruby-core:121475] [Ruby Bug#21205] File::Stat#birthtime is available on Linux
by BertramScharpf (Bertram Scharpf) 31 Mar '25

31 Mar '25

Issue #21205 has been reported by BertramScharpf (Bertram Scharpf). ---------------------------------------- Bug #21205: File::Stat#birthtime is available on Linux https://bugs.ruby-lang.org/issues/21205 * Author: BertramScharpf (Bertram Scharpf) * Status: Open * ruby -v: ruby 3.3.7 (2025-01-15 revision be31f993d7) [x86_64-linux] * Backport: 3.1: UNKNOWN, 3.2: UNKNOWN, 3.3: UNKNOWN, 3.4: UNKNOWN ---------------------------------------- Not that I would run into any problem with it, but this behaviour is confusing: RbConfig::CONFIG["platform"] #=> "amd64-freebsd14" (File.birthtime "/").class #=> Time (File.stat "/").birthtime.class #=> Time RbConfig::CONFIG["platform"] #=> "x86_64-linux" (File.birthtime "/").class #=> Time (File.stat "/").birthtime # raises NotImplementedError -- https://bugs.ruby-lang.org/

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[ruby-core:121477] [Ruby Bug#17506] Ractor isolation broken by ThreadGroup
by byroot (Jean Boussier) 30 Mar '25

30 Mar '25

Issue #17506 has been updated by byroot (Jean Boussier). Assignee set to ractor Retested on 3.4.2, and it seems the bug is still present. ---------------------------------------- Bug #17506: Ractor isolation broken by ThreadGroup https://bugs.ruby-lang.org/issues/17506#change-112495 * Author: marcandre (Marc-Andre Lafortune) * Status: Open * Assignee: ractor * ruby -v: ruby 3.0.0p0 (2020-12-25 revision 95aff21468) [x86_64-darwin18] * Backport: 2.5: UNKNOWN, 2.6: UNKNOWN, 2.7: UNKNOWN ---------------------------------------- Ractors currently share the ThreadGroup. This doesn't seem very useful as there is no possible communication between the Threads of different Ractors. It is also an isolation error: ```ruby ThreadGroup.attr_accessor :foo var = Thread.current.group.foo = [:example] Ractor.new { Thread.current.group.foo << [:oops] }.take var # => [:example, [:oops]] ``` Should `Ractor.new` create a new `ThreadGroup`? Should `ThreadGroup` not have (non-shareable) instance variables? Or should `Ractor.new { Thread.current.group }.take` be `nil`? See also https://bugs.ruby-lang.org/issues/17505 about `nil`. Note that `Ractor` respects the `ThreadGroup`'s state: ```ruby Thread.current.group.enclose Ractor.new { Thread.current.group.add(Thread.current) }.take # => can't move to the enclosed thread group Thread.current.group.freeze Ractor.new {} # => ThreadError (can't start a new thread (frozen ThreadGroup)) ``` I am not sure what is the best behavior as I don't have enough experience with how ThreadGroups are used, especially enclosed ThreadGroups. -- https://bugs.ruby-lang.org/

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[ruby-core:121428] [Ruby Bug#21195] Crash when using IO#timeout
by nickamorim (Nick Amorim) 29 Mar '25

29 Mar '25

Issue #21195 has been reported by nickamorim (Nick Amorim). ---------------------------------------- Bug #21195: Crash when using IO#timeout https://bugs.ruby-lang.org/issues/21195 * Author: nickamorim (Nick Amorim) * Status: Open * Backport: 3.1: UNKNOWN, 3.2: UNKNOWN, 3.3: UNKNOWN, 3.4: UNKNOWN ---------------------------------------- We have adopted the [IO#timeout](https://bugs.ruby-lang.org/issues/18630) feature in Dalli ([ref](https://github.com/petergoldstein/dalli/pull/1025)) for I/O timeouts. We regularly see crashes in our CI environment that I was able to pinpoint to calling `IO#gets` with `IO#timeout`: ## C Backtrace ``` _bk;t=1742524358337-- Threading information --------------------------------------------------- _bk;t=1742524358337Total ractor count: 1 _bk;t=1742524358337Ruby thread count for this ractor: 10 _bk;t=1742524358337 _bk;t=1742524358337-- C level backtrace information ------------------------------------------- _bk;t=1742524358649/usr/local/ruby/lib/libruby.so.3.4(rb_print_backtrace+0x8) [0x798534ef70c2] /tmp/ruby-build/ruby-3.4.2-pshopify2/vm_dump.c:823 _bk;t=1742524358649/usr/local/ruby/lib/libruby.so.3.4(rb_vm_bugreport) /tmp/ruby-build/ruby-3.4.2-pshopify2/vm_dump.c:1155 _bk;t=1742524358649/usr/local/ruby/lib/libruby.so.3.4(rb_bug_without_die_internal+0x6b) [0x798534bf99b1] /tmp/ruby-build/ruby-3.4.2-pshopify2/error.c:1097 _bk;t=1742524358649/usr/local/ruby/lib/libruby.so.3.4(rb_bug) /tmp/ruby-build/ruby-3.4.2-pshopify2/error.c:1115 _bk;t=1742524358649/usr/local/ruby/lib/libruby.so.3.4(rb_syserr_new_path_in+0x30) [0x798534bf9ea2] /tmp/ruby-build/ruby-3.4.2-pshopify2/error.c:3927 _bk;t=1742524358649/usr/local/ruby/lib/libruby.so.3.4(rb_syserr_fail_path_in+0xf) [0x798534cd8daf] /tmp/ruby-build/ruby-3.4.2-pshopify2/error.c:3915 _bk;t=1742524358649/usr/local/ruby/lib/libruby.so.3.4(io_fillbuf+0x99) [0x798534d22679] /tmp/ruby-build/ruby-3.4.2-pshopify2/io.c:2642 _bk;t=1742524358649/usr/local/ruby/lib/libruby.so.3.4(appendline+0x3d) [0x798534d250d5] /tmp/ruby-build/ruby-3.4.2-pshopify2/io.c:3954 _bk;t=1742524358649/usr/local/ruby/lib/libruby.so.3.4(rb_io_getline_0) /tmp/ruby-build/ruby-3.4.2-pshopify2/io.c:4215 _bk;t=1742524358649/usr/local/ruby/lib/libruby.so.3.4(rb_io_getline_1+0x21) [0x798534d25edb] /tmp/ruby-build/ruby-3.4.2-pshopify2/io.c:4273 _bk;t=1742524358649/usr/local/ruby/lib/libruby.so.3.4(rb_io_getline) /tmp/ruby-build/ruby-3.4.2-pshopify2/io.c:4293 _bk;t=1742524358649/usr/local/ruby/lib/libruby.so.3.4(rb_io_gets_m) /tmp/ruby-build/ruby-3.4.2-pshopify2/io.c:4387 _bk;t=1742524358649/usr/local/ruby/lib/libruby.so.3.4(vm_call_cfunc_with_frame_+0x11f) [0x798534ecd7af] /tmp/ruby-build/ruby-3.4.2-pshopify2/vm_insnhelper.c:3794 _bk;t=1742524358649/usr/local/ruby/lib/libruby.so.3.4(vm_sendish+0xbb) [0x798534ed6e6c] /tmp/ruby-build/ruby-3.4.2-pshopify2/vm_insnhelper.c:5961 _bk;t=1742524358649/usr/local/ruby/lib/libruby.so.3.4(vm_exec_core) /tmp/ruby-build/ruby-3.4.2-pshopify2/insns.def:898 _bk;t=1742524358649/usr/local/ruby/lib/libruby.so.3.4(rb_vm_exec+0x189) [0x798534ede289] /tmp/ruby-build/ruby-3.4.2-pshopify2/vm.c:2595 _bk;t=1742524358649/usr/local/ruby/lib/libruby.so.3.4(rb_yield_values2+0x63) [0x798534ee2be3] /tmp/ruby-build/ruby-3.4.2-pshopify2/vm.c:1676 _bk;t=1742524358649/usr/local/ruby/lib/libruby.so.3.4(rb_ensure+0xe6) [0x798534ce1116] /tmp/ruby-build/ruby-3.4.2-pshopify2/eval.c:1074 _bk;t=1742524358649/usr/local/ruby/lib/libruby.so.3.4(vm_call_cfunc_with_frame_+0x11f) [0x798534ecd7af] /tmp/ruby-build/ruby-3.4.2-pshopify2/vm_insnhelper.c:3794 _bk;t=1742524358649/usr/local/ruby/lib/libruby.so.3.4(vm_sendish+0xd3) [0x798534ec6da3] /tmp/ruby-build/ruby-3.4.2-pshopify2/vm_insnhelper.c:5961 _bk;t=1742524358649/usr/local/ruby/lib/libruby.so.3.4(vm_exec_core+0x1151) [0x798534ed7e71] /tmp/ruby-build/ruby-3.4.2-pshopify2/insns.def:851 _bk;t=1742524358649/usr/local/ruby/lib/libruby.so.3.4(rb_vm_exec+0x189) [0x798534ede289] /tmp/ruby-build/ruby-3.4.2-pshopify2/vm.c:2595 _bk;t=1742524358649/usr/local/ruby/lib/libruby.so.3.4(vm_yield_with_cref+0x42) [0x798534ee3348] /tmp/ruby-build/ruby-3.4.2-pshopify2/vm.c:1676 _bk;t=1742524358649/usr/local/ruby/lib/libruby.so.3.4(vm_yield) /tmp/ruby-build/ruby-3.4.2-pshopify2/vm.c:1684 _bk;t=1742524358649/usr/local/ruby/lib/libruby.so.3.4(rb_yield_0) /tmp/ruby-build/ruby-3.4.2-pshopify2/vm_eval.c:1344 _bk;t=1742524358649/usr/local/ruby/lib/libruby.so.3.4(rb_yield) /tmp/ruby-build/ruby-3.4.2-pshopify2/vm_eval.c:1360 _bk;t=1742524358649/usr/local/ruby/lib/libruby.so.3.4(rb_ary_collect+0x5c) [0x798534c1010c] /tmp/ruby-build/ruby-3.4.2-pshopify2/array.c:3645 _bk;t=1742524358649/usr/local/ruby/lib/libruby.so.3.4(vm_call_cfunc_with_frame_+0x11f) [0x798534ecd7af] /tmp/ruby-build/ruby-3.4.2-pshopify2/vm_insnhelper.c:3794 _bk;t=1742524358649/usr/local/ruby/lib/libruby.so.3.4(vm_sendish+0xd3) [0x798534ec6da3] /tmp/ruby-build/ruby-3.4.2-pshopify2/vm_insnhelper.c:5961 _bk;t=1742524358649/usr/local/ruby/lib/libruby.so.3.4(vm_exec_core+0x1151) [0x798534ed7e71] /tmp/ruby-build/ruby-3.4.2-pshopify2/insns.def:851 _bk;t=1742524358649/usr/local/ruby/lib/libruby.so.3.4(rb_vm_exec+0x189) [0x798534ede289] /tmp/ruby-build/ruby-3.4.2-pshopify2/vm.c:2595 _bk;t=1742524358649/usr/local/ruby/lib/libruby.so.3.4(vm_yield_with_cref+0x42) [0x798534ee3348] /tmp/ruby-build/ruby-3.4.2-pshopify2/vm.c:1676 _bk;t=1742524358649/usr/local/ruby/lib/libruby.so.3.4(vm_yield) /tmp/ruby-build/ruby-3.4.2-pshopify2/vm.c:1684 _bk;t=1742524358649/usr/local/ruby/lib/libruby.so.3.4(rb_yield_0) /tmp/ruby-build/ruby-3.4.2-pshopify2/vm_eval.c:1344 _bk;t=1742524358649/usr/local/ruby/lib/libruby.so.3.4(rb_yield) /tmp/ruby-build/ruby-3.4.2-pshopify2/vm_eval.c:1360 _bk;t=1742524358649/usr/local/ruby/lib/libruby.so.3.4(RB_FL_TEST_RAW+0x0) [0x798534c0951c] /tmp/ruby-build/ruby-3.4.2-pshopify2/array.c:2641 _bk;t=1742524358649/usr/local/ruby/lib/libruby.so.3.4(RB_FL_ANY_RAW) ./include/ruby/internal/fl_type.h:520 _bk;t=1742524358649/usr/local/ruby/lib/libruby.so.3.4(rb_array_len) ./include/ruby/internal/core/rarray.h:259 _bk;t=1742524358649/usr/local/ruby/lib/libruby.so.3.4(rb_ary_each) /tmp/ruby-build/ruby-3.4.2-pshopify2/array.c:2640 _bk;t=1742524358649/usr/local/ruby/lib/libruby.so.3.4(vm_call_cfunc_with_frame_+0x11f) [0x798534ecd7af] /tmp/ruby-build/ruby-3.4.2-pshopify2/vm_insnhelper.c:3794 _bk;t=1742524358649/usr/local/ruby/lib/libruby.so.3.4(vm_sendish+0xd3) [0x798534ec6da3] /tmp/ruby-build/ruby-3.4.2-pshopify2/vm_insnhelper.c:5961 _bk;t=1742524358649/usr/local/ruby/lib/libruby.so.3.4(vm_exec_core+0x1151) [0x798534ed7e71] /tmp/ruby-build/ruby-3.4.2-pshopify2/insns.def:851 _bk;t=1742524358649/usr/local/ruby/lib/libruby.so.3.4(vm_exec_loop+0xa) [0x798534ede529] /tmp/ruby-build/ruby-3.4.2-pshopify2/vm.c:2622 _bk;t=1742524358649/usr/local/ruby/lib/libruby.so.3.4(rb_vm_exec) /tmp/ruby-build/ruby-3.4.2-pshopify2/vm.c:2601 _bk;t=1742524358649/usr/local/ruby/lib/libruby.so.3.4(rb_vm_invoke_proc+0x66) [0x798534edf276] /tmp/ruby-build/ruby-3.4.2-pshopify2/vm.c:1770 _bk;t=1742524358649/usr/local/ruby/lib/libruby.so.3.4(rb_proc_call_kw+0x6a) [0x798534dc825a] /tmp/ruby-build/ruby-3.4.2-pshopify2/proc.c:988 _bk;t=1742524358649/usr/local/ruby/lib/libruby.so.3.4(exec_end_procs_chain+0x44) [0x798534ce25cd] /tmp/ruby-build/ruby-3.4.2-pshopify2/eval_jump.c:105 _bk;t=1742524358649/usr/local/ruby/lib/libruby.so.3.4(rb_ec_exec_end_proc) /tmp/ruby-build/ruby-3.4.2-pshopify2/eval_jump.c:121 _bk;t=1742524358649/usr/local/ruby/lib/libruby.so.3.4(rb_ec_teardown+0xcc) [0x798534ce27bc] /tmp/ruby-build/ruby-3.4.2-pshopify2/eval.c:155 _bk;t=1742524358649/usr/local/ruby/lib/libruby.so.3.4(rb_ec_cleanup+0x144) [0x798534ce29f4] /tmp/ruby-build/ruby-3.4.2-pshopify2/eval.c:207 _bk;t=1742524358649/usr/local/ruby/lib/libruby.so.3.4(ruby_run_node+0x8d) [0x798534ce2e1d] /tmp/ruby-build/ruby-3.4.2-pshopify2/eval.c:319 ``` ## Ruby Backtrace ``` _bk;t=1742524358337/tmp/bundle/ruby/3.4.0/bundler/gems/dalli-fbd3cba210d9/lib/dalli/protocol/connection_manager.rb:157: [BUG] rb_sys_fail_path_in(io_fillbuf, fd:16 ) - errno == 0 _bk;t=1742524358337ruby 3.4.2 (2025-03-18 revision 20130836d0) +PRISM [x86_64-linux] _bk;t=1742524358337 _bk;t=1742524358337-- Control frame information ----------------------------------------------- _bk;t=1742524358337c:0042 p:---- s:0206 e:000205 CFUNC :gets _bk;t=1742524358337c:0041 p:0007 s:0201 e:000200 METHOD /tmp/bundle/ruby/3.4.0/bundler/gems/dalli-fbd3cba210d9/lib/dalli/protocol/connection_manager.rb:157 _bk;t=1742524358337c:0040 p:0005 s:0195 e:000194 METHOD /tmp/bundle/ruby/3.4.0/bundler/gems/dalli-fbd3cba210d9/lib/dalli/protocol/meta/response_processor.rb:242 _bk;t=1742524358337c:0039 p:0003 s:0191 e:000190 METHOD /tmp/bundle/ruby/3.4.0/bundler/gems/dalli-fbd3cba210d9/lib/dalli/protocol/meta/response_processor.rb:246 _bk;t=1742524358337c:0038 p:0003 s:0186 e:000185 METHOD /tmp/bundle/ruby/3.4.0/bundler/gems/dalli-fbd3cba210d9/lib/dalli/protocol/meta/response_processor.rb:186 _bk;t=1742524358337c:0037 p:0007 s:0180 e:000179 METHOD /tmp/bundle/ruby/3.4.0/bundler/gems/dalli-fbd3cba210d9/lib/dalli/protocol/meta/response_processor.rb:108 _bk;t=1742524358337c:0036 p:0025 s:0176 e:000175 METHOD /tmp/bundle/ruby/3.4.0/bundler/gems/dalli-fbd3cba210d9/lib/dalli/protocol/meta.rb:232 _bk;t=1742524358337c:0035 p:0021 s:0171 e:000170 METHOD /tmp/bundle/ruby/3.4.0/bundler/gems/dalli-fbd3cba210d9/lib/dalli/protocol/base.rb:37 _bk;t=1742524358337c:0034 p:0010 s:0163 e:000162 BLOCK /tmp/bundle/ruby/3.4.0/bundler/gems/dalli-fbd3cba210d9/lib/dalli/options.rb:18 [FINISH] _bk;t=1742524358337c:0033 p:---- s:0160 e:000159 CFUNC :synchronize _bk;t=1742524358337c:0032 p:0006 s:0156 e:000155 METHOD /tmp/bundle/ruby/3.4.0/bundler/gems/dalli-fbd3cba210d9/lib/dalli/options.rb:17 _bk;t=1742524358337c:0031 p:0008 s:0150 e:000149 BLOCK /tmp/bundle/ruby/3.4.0/bundler/gems/dalli-fbd3cba210d9/lib/dalli/client.rb:324 [FINISH] _bk;t=1742524358337c:0030 p:---- s:0146 e:000145 CFUNC :map _bk;t=1742524358337c:0029 p:0011 s:0142 e:000141 METHOD /tmp/bundle/ruby/3.4.0/bundler/gems/dalli-fbd3cba210d9/lib/dalli/client.rb:324 ``` Unfortunately, I was not able to build a reproducible test. I have tried running on both Ruby 3.4.1 and 3.4.2 with no luck. The crash happens here: https://github.com/Shopify/ruby/blob/v3.4.1-pshopify3/io.c#L2632-L2643. Please let me know if there's any more information that I can provide :-) -- https://bugs.ruby-lang.org/

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