[MacRuby-devel] [MacRuby] #615: macruby segfaults when generating large random numbers

[MacRuby]

#615: macruby segfaults when generating large random numbers
-------------------------------+--------------------------------------------
 Reporter:  ahobson@…          |       Owner:  lsansonetti@…        
     Type:  defect             |      Status:  new                  
 Priority:  major              |   Milestone:                       
Component:  MacRuby            |    Keywords:  rand bignum          
-------------------------------+--------------------------------------------

Comment(by ahobson@…):

 Replying to [comment:1 lsansonetti@…]:
 > We changed random numbers very recently, when did you try this? I was
 not able to reproduce the crash with today's trunk.

 I originally tried it by rebuilding from source two days ago, but I pulled
 the latest from git and tried that.
 {{{
 % git show --quiet
 commit 87110990023d0693189661f8bd8fed3a3b650af2
 Author: ernest.prabhakar at gmail.com
 <ernest.prabhakar at gmail.com@23306eb0-4c56-472
 Date:   Wed Feb 17 01:47:04 2010 +0000

     Explained serial vs. concurrent Queues

     git-svn-id:
 http://svn.macosforge.org/repository/ruby/MacRuby/trunk@3562 233
 }}}

 It crashes the same way.


 I also downloaded the nightly build from 2010-02-16 and I get the same
 error.  I removed /Library/Frameworks/MacRuby.framework before installing
 the nightly just to make sure my build wasn't messing things up somehow.

 Below is the Diagnostic log from when I run the command using the nightly
 build.  Is there any other info I can provide?

 Thanks again.

 {{{
 Process:         macruby [53946]
 Path:
 /Library/Frameworks/MacRuby.framework/Versions/0.6/usr/bin/macruby
 Identifier:      macruby
 Version:         ??? (???)
 Code Type:       X86-64 (Native)
 Parent Process:  zsh [1266]

 Date/Time:       2010-02-16 21:29:15.888 -0500
 OS Version:      Mac OS X 10.6.2 (10C540)
 Report Version:  6

 Exception Type:  EXC_BAD_ACCESS (SIGABRT)
 Exception Codes: KERN_INVALID_ADDRESS at 0xffffffffcea54ec3
 Crashed Thread:  0  Dispatch queue: com.apple.main-thread

 Application Specific Information:
 objc[53946]: garbage collection is ON
 abort() called
 Thread 0 Crashed:  Dispatch queue: com.apple.main-thread
 0   libSystem.B.dylib                   0x00007fff820f2fe6 __kill + 10
 1   libSystem.B.dylib                   0x00007fff82193e32 abort + 83
 2   libmacruby.dylib                    0x000000010004429d rb_bug + 205
 3   libmacruby.dylib                    0x00000001000eadf0 sigbus + 0
 4   libSystem.B.dylib                   0x00007fff82104eaa _sigtramp + 26
 5   ???                                 0x00007fff5fbfeb60 0 +
 140734799801184
 6   libauto.dylib                       0x00007fff82514488
 Auto::Zone::block_allocate(Auto::Thread&, unsigned long, unsigned int,
 bool, bool) + 1048
 7   libauto.dylib                       0x00007fff825041f3
 auto_realloc(_malloc_zone_t*, void*, unsigned long) + 851
 8   libSystem.B.dylib                   0x00007fff820acb3b
 malloc_zone_realloc + 92
 9   libmacruby.dylib                    0x00000001000534da ruby_xrealloc +
 42
 10  libmacruby.dylib                    0x00000001000271fc rb_big_realloc
 + 172
 11  libmacruby.dylib                    0x000000010002aca1 bignorm + 369
 12  libmacruby.dylib                    0x00000001000b1f38 rb_f_rand + 120
 13  libmacruby.dylib                    0x0000000100174852 rb_vm_dispatch
 + 6098
 14  ???                                 0x000000010104009e 0 + 4312006814
 15  libmacruby.dylib                    0x0000000100183f9f rb_vm_run + 351
 16  libmacruby.dylib                    0x00000001000464d9 ruby_run_node +
 73
 17  macruby                             0x0000000100000d28 main + 152
 18  macruby                             0x0000000100000c88 start + 52
 }}}

-- 
Ticket URL: <http://www.macruby.org/trac/ticket/615#comment:2>
MacRuby <http://macruby.org/>