Project

General

Profile

Bug #9718

Updated by mrkn (Kenta Murata) over 10 years ago

The following code occurs segmentation fault on trunk and 2.1. 

 ```ruby 
 require 'thread' 

 queue = Queue.new 

 thread = Thread.start do 
   loop do 
     queue.pop.call 
   end 
 end 

 loop do 
   queue << -> do 
     p Time.now 
     sleep 1 
   end 
 end 
 ``` 

 Execution log: 

 ``` 
 2014-04-09 22:10:07 +0900 
 2014-04-09 22:10:08 +0900 
 2014-04-09 22:10:09 +0900 
 2014-04-09 22:10:10 +0900 
 2014-04-09 22:10:12 +0900 
 2014-04-09 22:10:13 +0900 
 2014-04-09 22:10:14 +0900 
 2014-04-09 22:10:15 +0900 
 2014-04-09 22:10:16 +0900 
 2014-04-09 22:10:17 +0900 
 test2.rb:7: [BUG] Segmentation fault at 0x00000000000000 
 ruby 2.1.2p80 (2014-03-01 revision 45231) [x86_64-darwin13.0] 

 -- Crash Report log information -------------------------------------------- 
    See Crash Report log file under the one of following: 
      * ~/Library/Logs/CrashReporter 
      * /Library/Logs/CrashReporter 
      * ~/Library/Logs/DiagnosticReports 
      * /Library/Logs/DiagnosticReports 
    for more details. 

 -- Control frame information ----------------------------------------------- 
 c:0004 p:0011 s:0010 e:000008 BLOCK    test2.rb:7 [FINISH] 
 c:0003 p:---- s:0007 e:000006 CFUNC    :loop 
 c:0002 p:0007 s:0004 e:000003 BLOCK    test2.rb:6 [FINISH] 
 c:0001 p:---- s:0002 e:000001 TOP      [FINISH] 

 test2.rb:6:in `block in <main>' 
 test2.rb:6:in `loop' 
 test2.rb:7:in `block (2 levels) in <main>' 

 -- C level backtrace information ------------------------------------------- 
 0     libruby.2.1.0.dylib                   0x000000010a134119 rb_print_backtrace + 25 
 1     libruby.2.1.0.dylib                   0x000000010a134239 rb_vm_bugreport + 153 
 2     libruby.2.1.0.dylib                   0x0000000109f42017 report_bug + 375 
 3     libruby.2.1.0.dylib                   0x0000000109f41e6a rb_bug + 426 
 4     libruby.2.1.0.dylib                   0x000000010a076650 init_sigchld + 0 
 5     libsystem_platform.dylib              0x00007fff85de95aa _sigtramp + 26 
 6     libruby.2.1.0.dylib                   0x000000010a083d78 st_lookup + 24 
 7     ???                                   0x000000010a697ab0 0x0 + 4469652144 

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

 * Loaded script: test2.rb 

 * Loaded features: 

     0 enumerator.so 
     1 /Users/mrkn/work/emsegv/lib/ruby/2.1.0/x86_64-darwin13.0/enc/encdb.bundle 
     2 /Users/mrkn/work/emsegv/lib/ruby/2.1.0/x86_64-darwin13.0/enc/trans/transdb.bundle 
     3 /Users/mrkn/work/emsegv/lib/ruby/2.1.0/x86_64-darwin13.0/rbconfig.rb 
     4 /Users/mrkn/work/emsegv/lib/ruby/2.1.0/rubygems/compatibility.rb 
     5 /Users/mrkn/work/emsegv/lib/ruby/2.1.0/rubygems/defaults.rb 
     6 /Users/mrkn/work/emsegv/lib/ruby/2.1.0/rubygems/deprecate.rb 
     7 /Users/mrkn/work/emsegv/lib/ruby/2.1.0/rubygems/errors.rb 
     8 /Users/mrkn/work/emsegv/lib/ruby/2.1.0/rubygems/version.rb 
     9 /Users/mrkn/work/emsegv/lib/ruby/2.1.0/rubygems/requirement.rb 
    10 /Users/mrkn/work/emsegv/lib/ruby/2.1.0/rubygems/platform.rb 
    11 /Users/mrkn/work/emsegv/lib/ruby/2.1.0/rubygems/basic_specification.rb 
    12 /Users/mrkn/work/emsegv/lib/ruby/2.1.0/rubygems/stub_specification.rb 
    13 /Users/mrkn/work/emsegv/lib/ruby/2.1.0/rubygems/util/stringio.rb 
    14 /Users/mrkn/work/emsegv/lib/ruby/2.1.0/rubygems/specification.rb 
    15 /Users/mrkn/work/emsegv/lib/ruby/2.1.0/rubygems/exceptions.rb 
    16 /Users/mrkn/work/emsegv/lib/ruby/2.1.0/rubygems/core_ext/kernel_gem.rb 
    17 thread.rb 
    18 /Users/mrkn/work/emsegv/lib/ruby/2.1.0/x86_64-darwin13.0/thread.bundle 
    19 /Users/mrkn/work/emsegv/lib/ruby/2.1.0/monitor.rb 
    20 /Users/mrkn/work/emsegv/lib/ruby/2.1.0/rubygems/core_ext/kernel_require.rb 
    21 /Users/mrkn/work/emsegv/lib/ruby/2.1.0/rubygems.rb 

 [NOTE] 
 You may have encountered a bug in the Ruby interpreter or extension libraries. 
 Bug reports are welcome. 
 For details: http://www.ruby-lang.org/bugreport.html 

 Abort trap: 6 
 ```

Back