Bug #18575: [BUG] unsupported: T_NONE

• Status: Closed
• Assignee: -
• Target version: -
• ruby -v: ruby 3.0.2p107 (2021-07-07 revision 0db68f0233) [x86_64-linux]
• Backport: 2.6: UNKNOWN, 2.7: UNKNOWN, 3.0: UNKNOWN, 3.1: UNKNOWN

[PhilCoggins (Phil Coggins)]

I am seeing this error cropping up in my application, particularly when processing large CSV files. It seems to be semi-related to https://bugs.ruby-lang.org/issues/16689 (Hash#transform_values!, but this particular issue is with Hash#transform_keys!). I am unable how to get a repro script, but it would be very helpful if the one from the linked issue were still available. This seems to be an issue with an unsupported condition in the transient heap (https://github.com/ruby/ruby/blob/v3_0_1/transient_heap.c#L740). Any guidance would be much appreciated, thank you!

Below is the Control Frame Info:

/app/packages/imports-exports/app/models/import.rb:276: [BUG] unsupported: T_NONE 
ruby 3.0.2p107 (2021-07-07 revision 0db68f0233) [x86_64-linux] 
-- Control frame information ----------------------------------------------- 
c:0065 p:---- s:0356 e:000355 CFUNC  :transform_keys! 
c:0064 p:0012 s:0352 e:000351 BLOCK  /app/packages/imports-exports/app/models/import.rb:276 [FINISH] 
c:0063 p:---- s:0347 e:000346 IFUNC  
c:0062 p:---- s:0344 e:000343 CFUNC  :each 
c:0061 p:0042 s:0340 e:000339 METHOD /app/vendor/ruby-3.0.2/lib/ruby/3.0.0/csv/table.rb:539 [FINISH] 
c:0060 p:---- s:0335 e:000334 CFUNC  :map 
c:0059 p:0036 s:0331 E:000448 METHOD /app/packages/imports-exports/app/models/import.rb:274 
c:0058 p:0037 s:0326 e:000325 METHOD /app/packages/imports-exports/app/models/import.rb:200 
c:0057 p:0005 s:0322 e:000321 METHOD /app/packages/fuel/app/public/fleetcor_service/cards_importer.rb:12 
c:0056 p:0020 s:0318 e:000317 METHOD /app/packages/fuel/app/services/concerns/fuel_card_service/base_importer.rb:13 
c:0055 p:0008 s:0311 e:000310 METHOD /app/vendor/bundle/ruby/3.0.0/gems/sidekiq-6.4.0/lib/sidekiq/processor.rb:196 
c:0054 p:0013 s:0305 e:000304 BLOCK  /app/vendor/bundle/ruby/3.0.0/gems/sidekiq-6.4.0/lib/sidekiq/processor.rb:164 
c:0053 p:0009 s:0302 e:000301 BLOCK  /app/vendor/bundle/ruby/3.0.0/gems/sidekiq-6.4.0/lib/sidekiq/middleware/chain.rb:138 
c:0052 p:0002 s:0299 e:000298 METHOD /app/vendor/bundle/ruby/3.0.0/gems/sidekiq-throttled-0.15.0/lib/sidekiq/throttled/middleware.rb:14 
c:0051 p:0023 s:0292 e:000291 BLOCK  /app/vendor/bundle/ruby/3.0.0/gems/sidekiq-6.4.0/lib/sidekiq/middleware/chain.rb:140 
c:0050 p:0005 s:0289 e:000286 METHOD /app/lib/sidekiq/middleware/server_notifications.rb:5 
c:0049 p:0023 s:0279 e:000278 BLOCK  /app/vendor/bundle/ruby/3.0.0/gems/sidekiq-6.4.0/lib/sidekiq/middleware/chain.rb:140 
c:0048 p:0508 s:0276 e:000275 METHOD /app/lib/sidekiq/middleware/server_metrics.rb:47 
c:0047 p:0023 s:0261 e:000260 BLOCK  /app/vendor/bundle/ruby/3.0.0/gems/sidekiq-6.4.0/lib/sidekiq/middleware/chain.rb:140 
c:0046 p:0202 s:0258 e:000257 METHOD /app/lib/sidekiq/middleware/server_paper_trail.rb:21 
c:0045 p:0023 s:0251 e:000250 BLOCK  /app/vendor/bundle/ruby/3.0.0/gems/sidekiq-6.4.0/lib/sidekiq/middleware/chain.rb:140 
c:0044 p:0012 s:0248 e:000247 METHOD /app/lib/sidekiq/middleware/server_current_context.rb:8 
c:0043 p:0023 s:0241 e:000240 BLOCK  /app/vendor/bundle/ruby/3.0.0/gems/sidekiq-6.4.0/lib/sidekiq/middleware/chain.rb:140 
c:0042 p:0089 s:0238 e:000237 METHOD /app/vendor/bundle/ruby/3.0.0/gems/sidekiq-status-2.1.3/lib/sidekiq-status/server_middleware.rb:42 
c:0041 p:0023 s:0227 e:000226 BLOCK  /app/vendor/bundle/ruby/3.0.0/gems/sidekiq-6.4.0/lib/sidekiq/middleware/chain.rb:140 
c:0040 p:0102 s:0224 e:000223 BLOCK  /app/vendor/bundle/ruby/3.0.0/gems/newrelic_rpm-8.4.0/lib/new_relic/agent/instrumentation/sidekiq.rb:35 
c:0039 p:0189 s:0221 e:000220 METHOD /app/vendor/bundle/ruby/3.0.0/gems/newrelic_rpm-8.4.0/lib/new_relic/agent/instrumentation/controller_instrumentation.rb:377 
c:0038 p:0052 s:0206 e:000205 METHOD /app/vendor/bundle/ruby/3.0.0/gems/newrelic_rpm-8.4.0/lib/new_relic/agent/instrumentation/sidekiq.rb:30 
c:0037 p:0023 s:0196 e:000195 BLOCK  /app/vendor/bundle/ruby/3.0.0/gems/sidekiq-6.4.0/lib/sidekiq/middleware/chain.rb:140 
c:0036 p:0002 s:0193 e:000192 METHOD /app/vendor/bundle/ruby/3.0.0/gems/request_store-sidekiq-0.1.0/lib/request_store/sidekiq/server_middleware.rb:5 
c:0035 p:0023 s:0186 e:000185 BLOCK  /app/vendor/bundle/ruby/3.0.0/gems/sidekiq-6.4.0/lib/sidekiq/middleware/chain.rb:140 
c:0034 p:0052 s:0183 e:000182 METHOD /app/config/initializers/acts_as_tenant.rb:14 
c:0033 p:0023 s:0174 e:000173 BLOCK  /app/vendor/bundle/ruby/3.0.0/gems/sidekiq-6.4.0/lib/sidekiq/middleware/chain.rb:140 
c:0032 p:0003 s:0171 e:000170 BLOCK  /app/vendor/bundle/ruby/3.0.0/gems/appsignal-3.0.20/lib/appsignal/integrations/sidekiq.rb:54 
c:0031 p:0050 s:0168 e:000167 METHOD /app/vendor/bundle/ruby/3.0.0/gems/appsignal-3.0.20/lib/appsignal/helpers/instrumentation.rb:525 
c:0030 p:0082 s:0160 e:000159 METHOD /app/vendor/bundle/ruby/3.0.0/gems/appsignal-3.0.20/lib/appsignal/integrations/sidekiq.rb:53 
c:0029 p:0023 s:0148 e:000147 BLOCK  /app/vendor/bundle/ruby/3.0.0/gems/sidekiq-6.4.0/lib/sidekiq/middleware/chain.rb:140 
c:0028 p:0024 s:0145 E:0021d8 METHOD /app/vendor/bundle/ruby/3.0.0/gems/sidekiq-6.4.0/lib/sidekiq/middleware/chain.rb:143 
c:0027 p:0021 s:0138 E:001ec8 BLOCK  /app/vendor/bundle/ruby/3.0.0/gems/sidekiq-6.4.0/lib/sidekiq/processor.rb:163 
c:0026 p:0005 s:0134 e:000133 BLOCK  /app/vendor/bundle/ruby/3.0.0/gems/sidekiq-6.4.0/lib/sidekiq/processor.rb:136 
c:0025 p:0002 s:0131 e:000130 METHOD /app/vendor/bundle/ruby/3.0.0/gems/sidekiq-6.4.0/lib/sidekiq/job_retry.rb:114 
c:0024 p:0045 s:0120 e:000119 BLOCK  /app/vendor/bundle/ruby/3.0.0/gems/sidekiq-6.4.0/lib/sidekiq/processor.rb:135 
c:0023 p:0003 s:0115 e:000114 BLOCK  /app/vendor/bundle/ruby/3.0.0/gems/sidekiq-6.4.0/lib/sidekiq/rails.rb:14 
c:0022 p:0015 s:0112 e:000111 METHOD /app/vendor/bundle/ruby/3.0.0/gems/activesupport-6.1.4.4/lib/active_support/execution_wrapper.rb:88 
c:0021 p:0005 s:0107 e:000106 BLOCK  /app/vendor/bundle/ruby/3.0.0/gems/activesupport-6.1.4.4/lib/active_support/reloader.rb:72 
c:0020 p:0015 s:0104 e:000103 METHOD /app/vendor/bundle/ruby/3.0.0/gems/activesupport-6.1.4.4/lib/active_support/execution_wrapper.rb:88 
c:0019 p:0006 s:0099 e:000098 METHOD /app/vendor/bundle/ruby/3.0.0/gems/activesupport-6.1.4.4/lib/active_support/reloader.rb:71 
c:0018 p:0008 s:0095 e:000094 METHOD /app/vendor/bundle/ruby/3.0.0/gems/sidekiq-6.4.0/lib/sidekiq/rails.rb:13 
c:0017 p:0007 s:0091 e:000090 BLOCK  /app/vendor/bundle/ruby/3.0.0/gems/sidekiq-6.4.0/lib/sidekiq/processor.rb:131 
c:0016 p:0042 s:0088 e:000087 METHOD /app/vendor/bundle/ruby/3.0.0/gems/sidekiq-6.4.0/lib/sidekiq/processor.rb:257 
c:0015 p:0011 s:0082 e:000081 BLOCK  /app/vendor/bundle/ruby/3.0.0/gems/sidekiq-6.4.0/lib/sidekiq/processor.rb:126 
c:0014 p:0042 s:0079 e:000078 METHOD /app/vendor/bundle/ruby/3.0.0/gems/sidekiq-6.4.0/lib/sidekiq/job_logger.rb:13 
c:0013 p:0013 s:0072 e:000071 BLOCK  /app/vendor/bundle/ruby/3.0.0/gems/sidekiq-6.4.0/lib/sidekiq/processor.rb:125 
c:0012 p:0002 s:0069 e:000068 METHOD /app/vendor/bundle/ruby/3.0.0/gems/sidekiq-6.4.0/lib/sidekiq/job_retry.rb:81 
c:0011 p:0011 s:0059 e:000058 BLOCK  /app/vendor/bundle/ruby/3.0.0/gems/sidekiq-6.4.0/lib/sidekiq/processor.rb:124 
c:0010 p:0017 s:0056 e:000055 METHOD /app/vendor/bundle/ruby/3.0.0/gems/sidekiq-6.4.0/lib/sidekiq/logger.rb:11 
c:0009 p:0046 s:0050 e:000049 METHOD /app/vendor/bundle/ruby/3.0.0/gems/sidekiq-6.4.0/lib/sidekiq/job_logger.rb:33 
c:0008 p:0008 s:0043 e:000042 METHOD /app/vendor/bundle/ruby/3.0.0/gems/sidekiq-6.4.0/lib/sidekiq/processor.rb:123 

And the calling implementation that triggers it does the following:

CSV.parse(
  data,
  headers: true,
  col_sep: delimiter,
  quote_char: quote_char,
  skip_blanks: true,
  converters: converter
).map do |row|
  obj = row.to_h
  obj.transform_keys! { |k| k.strip.downcase }.with_indifferent_access # this is line /app/packages/imports-exports/app/models/import.rb:276
end

[PhilCoggins (Phil Coggins)]

I think i have managed to produce a relatively simply repro script:

require 'csv'
parsed = CSV.parse("Foo,bAr,baZ\nfoo,bar,baz", headers: true)

while true
  parsed.map do |row|
    obj = row.to_h
    obj.transform_keys! { |k| k.strip.downcase }
  end
end

$ ruby repro.rb
repro.rb:7: [BUG] unsupported: T_NONE

ruby 3.0.2p107 (2021-07-07 revision 0db68f0233) [x86_64-darwin20]

-- 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:0010 p:---- s:0040 e:000039 CFUNC  :downcase
c:0009 p:0007 s:0036 e:000035 BLOCK  repro.rb:7 [FINISH]
c:0008 p:---- s:0032 e:000031 CFUNC  :transform_keys!
c:0007 p:0012 s:0028 e:000027 BLOCK  repro.rb:7 [FINISH]
c:0006 p:---- s:0023 e:000022 IFUNC 
c:0005 p:---- s:0020 e:000019 CFUNC  :each
c:0004 p:0042 s:0016 e:000015 METHOD /Users/philcoggins/.rbenv/versions/3.0.2/lib/ruby/3.0.0/csv/table.rb:539 [FINISH]
c:0003 p:---- s:0011 e:000010 CFUNC  :map
c:0002 p:0032 s:0007 E:001668 EVAL   repro.rb:5 [FINISH]
c:0001 p:0000 s:0003 E:000c40 (none) [FINISH]

-- Ruby level backtrace information ----------------------------------------
repro.rb:5:in `<main>'
repro.rb:5:in `map'
/Users/philcoggins/.rbenv/versions/3.0.2/lib/ruby/3.0.0/csv/table.rb:539:in `each'
/Users/philcoggins/.rbenv/versions/3.0.2/lib/ruby/3.0.0/csv/table.rb:539:in `each'
repro.rb:7:in `block in <main>'
repro.rb:7:in `transform_keys!'
repro.rb:7:in `block (2 levels) in <main>'
repro.rb:7:in `downcase'

-- C level backtrace information -------------------------------------------
/Users/philcoggins/.rbenv/versions/3.0.2/lib/libruby.3.0.dylib(rb_vm_bugreport+0x6cf) [0x10d93dd5f]
/Users/philcoggins/.rbenv/versions/3.0.2/lib/libruby.3.0.dylib(rb_bug_without_die+0x184) [0x10d757504]
/Users/philcoggins/.rbenv/versions/3.0.2/lib/libruby.3.0.dylib(rb_bug+0x6f) [0x10d94ab79]
/Users/philcoggins/.rbenv/versions/3.0.2/lib/libruby.3.0.dylib(transient_heap_block_evacuate.cold.1+0x1a) [0x10d94c7ba]
/Users/philcoggins/.rbenv/versions/3.0.2/lib/libruby.3.0.dylib(transient_heap_block_evacuate+0xc5) [0x10d8fb835]
/Users/philcoggins/.rbenv/versions/3.0.2/lib/libruby.3.0.dylib(transient_heap_evacuate+0x58) [0x10d8fb1a8]
/Users/philcoggins/.rbenv/versions/3.0.2/lib/libruby.3.0.dylib(rb_postponed_job_flush+0x24f) [0x10d94394f]
/Users/philcoggins/.rbenv/versions/3.0.2/lib/libruby.3.0.dylib(rb_threadptr_execute_interrupts+0xfe) [0x10d8d7d8e]
/Users/philcoggins/.rbenv/versions/3.0.2/lib/libruby.3.0.dylib(vm_call_cfunc_with_frame+0x271) [0x10d9339f1]
/Users/philcoggins/.rbenv/versions/3.0.2/lib/libruby.3.0.dylib(vm_sendish+0x516) [0x10d92b506]
/Users/philcoggins/.rbenv/versions/3.0.2/lib/libruby.3.0.dylib(vm_exec_core+0x39f0) [0x10d910580]
/Users/philcoggins/.rbenv/versions/3.0.2/lib/libruby.3.0.dylib(rb_vm_exec+0xcab) [0x10d926c0b]
/Users/philcoggins/.rbenv/versions/3.0.2/lib/libruby.3.0.dylib(invoke_block_from_c_bh+0x70c) [0x10d93797c]
/Users/philcoggins/.rbenv/versions/3.0.2/lib/libruby.3.0.dylib(rb_yield+0xa7) [0x10d91e937]
/Users/philcoggins/.rbenv/versions/3.0.2/lib/libruby.3.0.dylib(rb_hash_transform_keys_bang+0x217) [0x10d78f4e7]
/Users/philcoggins/.rbenv/versions/3.0.2/lib/libruby.3.0.dylib(vm_call_cfunc_with_frame+0x14f) [0x10d9338cf]
/Users/philcoggins/.rbenv/versions/3.0.2/lib/libruby.3.0.dylib(vm_sendish+0x516) [0x10d92b506]
/Users/philcoggins/.rbenv/versions/3.0.2/lib/libruby.3.0.dylib(vm_exec_core+0x398d) [0x10d91051d]
/Users/philcoggins/.rbenv/versions/3.0.2/lib/libruby.3.0.dylib(rb_vm_exec+0xcab) [0x10d926c0b]
/Users/philcoggins/.rbenv/versions/3.0.2/lib/libruby.3.0.dylib(invoke_block_from_c_bh+0x70c) [0x10d93797c]
/Users/philcoggins/.rbenv/versions/3.0.2/lib/libruby.3.0.dylib(rb_yield_values2+0x5e) [0x10d91ec3e]
/Users/philcoggins/.rbenv/versions/3.0.2/lib/libruby.3.0.dylib(collect_i+0x13) [0x10d749563]
/Users/philcoggins/.rbenv/versions/3.0.2/lib/libruby.3.0.dylib(invoke_block_from_c_bh+0x437) [0x10d9376a7]
/Users/philcoggins/.rbenv/versions/3.0.2/lib/libruby.3.0.dylib(rb_yield+0xa7) [0x10d91e937]
/Users/philcoggins/.rbenv/versions/3.0.2/lib/libruby.3.0.dylib(rb_ary_each+0x37) [0x10d6b8eb7]
/Users/philcoggins/.rbenv/versions/3.0.2/lib/libruby.3.0.dylib(vm_call_cfunc_with_frame+0x14f) [0x10d9338cf]
/Users/philcoggins/.rbenv/versions/3.0.2/lib/libruby.3.0.dylib(vm_sendish+0x516) [0x10d92b506]
/Users/philcoggins/.rbenv/versions/3.0.2/lib/libruby.3.0.dylib(vm_exec_core+0x398d) [0x10d91051d]
/Users/philcoggins/.rbenv/versions/3.0.2/lib/libruby.3.0.dylib(rb_vm_exec+0xcab) [0x10d926c0b]
/Users/philcoggins/.rbenv/versions/3.0.2/lib/libruby.3.0.dylib(rb_call0+0x6b2) [0x10d936dd2]
/Users/philcoggins/.rbenv/versions/3.0.2/lib/libruby.3.0.dylib(iterate_method+0x41) [0x10d91f461]
/Users/philcoggins/.rbenv/versions/3.0.2/lib/libruby.3.0.dylib(rb_iterate0+0x221) [0x10d91f321]
/Users/philcoggins/.rbenv/versions/3.0.2/lib/libruby.3.0.dylib(rb_lambda_call+0x69) [0x10d91f569]
/Users/philcoggins/.rbenv/versions/3.0.2/lib/libruby.3.0.dylib(enum_collect+0x58) [0x10d746378]
/Users/philcoggins/.rbenv/versions/3.0.2/lib/libruby.3.0.dylib(vm_call_cfunc_with_frame+0x14f) [0x10d9338cf]
/Users/philcoggins/.rbenv/versions/3.0.2/lib/libruby.3.0.dylib(vm_sendish+0x516) [0x10d92b506]
/Users/philcoggins/.rbenv/versions/3.0.2/lib/libruby.3.0.dylib(vm_exec_core+0x398d) [0x10d91051d]
/Users/philcoggins/.rbenv/versions/3.0.2/lib/libruby.3.0.dylib(rb_vm_exec+0xcab) [0x10d926c0b]
/Users/philcoggins/.rbenv/versions/3.0.2/lib/libruby.3.0.dylib(rb_ec_exec_node+0x136) [0x10d762b06]
/Users/philcoggins/.rbenv/versions/3.0.2/lib/libruby.3.0.dylib(ruby_run_node+0x57) [0x10d762977]
/Users/philcoggins/.rbenv/versions/3.0.2/bin/ruby(main+0x5d) [0x10d16cf0d]

-- Other runtime information -----------------------------------------------

* Loaded script: repro.rb

* Loaded features:

    0 enumerator.so
    1 thread.rb
    2 rational.so
    3 complex.so
    4 ruby2_keywords.rb
    5 /Users/philcoggins/.rbenv/versions/3.0.2/lib/ruby/3.0.0/x86_64-darwin20/enc/encdb.bundle
    6 /Users/philcoggins/.rbenv/versions/3.0.2/lib/ruby/3.0.0/x86_64-darwin20/enc/trans/transdb.bundle
    7 /Users/philcoggins/.rbenv/versions/3.0.2/lib/ruby/3.0.0/x86_64-darwin20/rbconfig.rb
    8 /Users/philcoggins/.rbenv/versions/3.0.2/lib/ruby/3.0.0/rubygems/compatibility.rb
    9 /Users/philcoggins/.rbenv/versions/3.0.2/lib/ruby/3.0.0/rubygems/defaults.rb
   10 /Users/philcoggins/.rbenv/versions/3.0.2/lib/ruby/3.0.0/rubygems/deprecate.rb
   11 /Users/philcoggins/.rbenv/versions/3.0.2/lib/ruby/3.0.0/rubygems/errors.rb
   12 /Users/philcoggins/.rbenv/versions/3.0.2/lib/ruby/3.0.0/rubygems/exceptions.rb
   13 /Users/philcoggins/.rbenv/versions/3.0.2/lib/ruby/3.0.0/rubygems/basic_specification.rb
   14 /Users/philcoggins/.rbenv/versions/3.0.2/lib/ruby/3.0.0/rubygems/stub_specification.rb
   15 /Users/philcoggins/.rbenv/versions/3.0.2/lib/ruby/3.0.0/rubygems/text.rb
   16 /Users/philcoggins/.rbenv/versions/3.0.2/lib/ruby/3.0.0/rubygems/user_interaction.rb
   17 /Users/philcoggins/.rbenv/versions/3.0.2/lib/ruby/3.0.0/rubygems/specification_policy.rb
   18 /Users/philcoggins/.rbenv/versions/3.0.2/lib/ruby/3.0.0/rubygems/util/list.rb
   19 /Users/philcoggins/.rbenv/versions/3.0.2/lib/ruby/3.0.0/rubygems/platform.rb
   20 /Users/philcoggins/.rbenv/versions/3.0.2/lib/ruby/3.0.0/rubygems/version.rb
   21 /Users/philcoggins/.rbenv/versions/3.0.2/lib/ruby/3.0.0/rubygems/requirement.rb
   22 /Users/philcoggins/.rbenv/versions/3.0.2/lib/ruby/3.0.0/rubygems/specification.rb
   23 /Users/philcoggins/.rbenv/versions/3.0.2/lib/ruby/3.0.0/rubygems/util.rb
   24 /Users/philcoggins/.rbenv/versions/3.0.2/lib/ruby/3.0.0/rubygems/dependency.rb
   25 /Users/philcoggins/.rbenv/versions/3.0.2/lib/ruby/3.0.0/rubygems/core_ext/kernel_gem.rb
   26 /Users/philcoggins/.rbenv/versions/3.0.2/lib/ruby/3.0.0/x86_64-darwin20/monitor.bundle
   27 /Users/philcoggins/.rbenv/versions/3.0.2/lib/ruby/3.0.0/monitor.rb
   28 /Users/philcoggins/.rbenv/versions/3.0.2/lib/ruby/3.0.0/rubygems/core_ext/kernel_require.rb
   29 /Users/philcoggins/.rbenv/versions/3.0.2/lib/ruby/3.0.0/rubygems/core_ext/kernel_warn.rb
   30 /Users/philcoggins/.rbenv/versions/3.0.2/lib/ruby/3.0.0/rubygems.rb
   31 /Users/philcoggins/.rbenv/versions/3.0.2/lib/ruby/3.0.0/rubygems/path_support.rb
   32 /Users/philcoggins/.rbenv/versions/3.0.2/lib/ruby/3.0.0/did_you_mean/version.rb
   33 /Users/philcoggins/.rbenv/versions/3.0.2/lib/ruby/3.0.0/did_you_mean/core_ext/name_error.rb
   34 /Users/philcoggins/.rbenv/versions/3.0.2/lib/ruby/3.0.0/did_you_mean/levenshtein.rb
   35 /Users/philcoggins/.rbenv/versions/3.0.2/lib/ruby/3.0.0/did_you_mean/jaro_winkler.rb
   36 /Users/philcoggins/.rbenv/versions/3.0.2/lib/ruby/3.0.0/did_you_mean/spell_checker.rb
   37 /Users/philcoggins/.rbenv/versions/3.0.2/lib/ruby/3.0.0/did_you_mean/spell_checkers/name_error_checkers/class_name_checker.rb
   38 /Users/philcoggins/.rbenv/versions/3.0.2/lib/ruby/3.0.0/did_you_mean/spell_checkers/name_error_checkers/variable_name_checker.rb
   39 /Users/philcoggins/.rbenv/versions/3.0.2/lib/ruby/3.0.0/did_you_mean/spell_checkers/name_error_checkers.rb
   40 /Users/philcoggins/.rbenv/versions/3.0.2/lib/ruby/3.0.0/did_you_mean/spell_checkers/method_name_checker.rb
   41 /Users/philcoggins/.rbenv/versions/3.0.2/lib/ruby/3.0.0/did_you_mean/spell_checkers/key_error_checker.rb
   42 /Users/philcoggins/.rbenv/versions/3.0.2/lib/ruby/3.0.0/did_you_mean/spell_checkers/null_checker.rb
   43 /Users/philcoggins/.rbenv/versions/3.0.2/lib/ruby/3.0.0/did_you_mean/tree_spell_checker.rb
   44 /Users/philcoggins/.rbenv/versions/3.0.2/lib/ruby/3.0.0/did_you_mean/spell_checkers/require_path_checker.rb
   45 /Users/philcoggins/.rbenv/versions/3.0.2/lib/ruby/3.0.0/did_you_mean/formatters/plain_formatter.rb
   46 /Users/philcoggins/.rbenv/versions/3.0.2/lib/ruby/3.0.0/did_you_mean.rb
   47 /Users/philcoggins/.rbenv/versions/3.0.2/lib/ruby/3.0.0/forwardable/impl.rb
   48 /Users/philcoggins/.rbenv/versions/3.0.2/lib/ruby/3.0.0/forwardable.rb
   49 /Users/philcoggins/.rbenv/versions/3.0.2/lib/ruby/3.0.0/English.rb
   50 /Users/philcoggins/.rbenv/versions/3.0.2/lib/ruby/3.0.0/x86_64-darwin20/date_core.bundle
   51 /Users/philcoggins/.rbenv/versions/3.0.2/lib/ruby/3.0.0/date.rb
   52 /Users/philcoggins/.rbenv/versions/3.0.2/lib/ruby/3.0.0/x86_64-darwin20/stringio.bundle
   53 /Users/philcoggins/.rbenv/versions/3.0.2/lib/ruby/3.0.0/csv/fields_converter.rb
   54 /Users/philcoggins/.rbenv/versions/3.0.2/lib/ruby/3.0.0/csv/match_p.rb
   55 /Users/philcoggins/.rbenv/versions/3.0.2/lib/ruby/3.0.0/x86_64-darwin20/strscan.bundle
   56 /Users/philcoggins/.rbenv/versions/3.0.2/lib/ruby/3.0.0/csv/delete_suffix.rb
   57 /Users/philcoggins/.rbenv/versions/3.0.2/lib/ruby/3.0.0/csv/row.rb
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   59 /Users/philcoggins/.rbenv/versions/3.0.2/lib/ruby/3.0.0/csv/parser.rb
   60 /Users/philcoggins/.rbenv/versions/3.0.2/lib/ruby/3.0.0/csv/writer.rb
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* Process memory map:

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10d28c000-10d28d000 --- /usr/local/Cellar/gmp/6.2.1_1/lib/libgmp.10.dylib
10d28d000-10d28e000 --- /usr/local/Cellar/gmp/6.2.1_1/lib/libgmp.10.dylib
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7ff85ec00000-7ff85ee00000 r--
7ff85ee00000-7ff85f000000 rw-
7ff85f000000-7ff85f200000 rw-
7ff85f200000-7ff860000000 r--
7ff860000000-7ff860200000 rw-
7ff860200000-7ff880000000 r--
7ff880000000-7ffffe000000 r--
7fffffe00000-7fffffe01000 r--
7ffffff82000-7ffffff83000 r-x
[IMPORTANT]
Don't forget to include the Crash Report log file under
DiagnosticReports directory in bug reports.

[1]    99504 abort      ruby repro.rb

$ cat ~/Library/Logs/DiagnosticReports/ruby-2022-02-07-154106.ips
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[tenderlovemaking (Aaron Patterson)]

Hi,

Thanks for the short repro script! I think this might have been fixed, but I'm not sure what revision. Ruby 3.1.0 doesn't crash with your test script, so maybe there's a commit that needs to be backported.

[PhilCoggins (Phil Coggins)]

tenderlovemaking (Aaron Patterson) wrote in #note-2:

Hi,

Thanks for the short repro script! I think this might have been fixed, but I'm not sure what revision. Ruby 3.1.0 doesn't crash with your test script, so maybe there's a commit that needs to be backported.

Thank you for the response!

I think it is possible that csv version is responsible for this? I updated my test script to pull in csv tag 3.2.2 and it no longer errored with the script in Ruby v3.0.2

require "bundler/inline"

gemfile(true) do
  source "https://rubygems.org"

  gem "csv", "3.2.2"
end

require 'csv'
parsed = CSV.parse("Foo,bAr,baZ\nfoo,bar,baz", headers: true)
idx = 0

while true
  parsed.map do |row|
    obj = row.to_h
    obj.transform_keys! { |k| k.strip.downcase }
  end
  puts "ITERATION: #{idx}"
  idx += 1
end

I'm still trying to identify what caused / fixed this between 3.2.1 and 3.2.2, it certainly seems related to CSV::Row#to_h or CSV::Row#each but at least I can bump csv in my application. This still may be a bug in Ruby, but I'll let the smart Ruby folks take it from here. Thanks again!

EDIT: It actually still breaks in CSV v3.2.2, I just didn't wait long enough for it to fail.

[byroot (Jean Boussier)]

How long does it usually takes for you to repro? I tried on macOS and it didn't repro after a long time. No luck either with the ruby:3.0.2 docker image.

Also did you try 3.0.3? Because 3.0.2 had a very nasty memory leak in transform_keys! that was fixed in 3.0.3. https://bugs.ruby-lang.org/issues/18065

[PhilCoggins (Phil Coggins)]

byroot (Jean Boussier) wrote in #note-4:

How long does it usually takes for you to repro? I tried on macOS and it didn't repro after a long time. No luck either with the ruby:3.0.2 docker image.

Also did you try 3.0.3? Because 3.0.2 had a very nasty memory leak in transform_keys! that was fixed in 3.0.3. https://bugs.ruby-lang.org/issues/18065

It should occur in under 10 seconds, though it does seem to be intermittent, if it goes beyond 15 seconds, I'll quit the script and try again until it occurs. I have not gotten this to repro on 3.0.3, so I think I'll try to upgrade my application to that, thanks!

[byroot (Jean Boussier)]

• Status changed from Open to Closed

Closing assuming it was fixed as part of 3.0.3, if you do happen to see this bug again on 3.0.3 we can re-open.