[MacRuby] #1099: macirb segfault

[MacRuby]

#1099: macirb segfault
---------------------------+------------------------------------------------
 Reporter:  lucas@…        |       Owner:  lsansonetti@…        
     Type:  defect         |      Status:  new                  
 Priority:  blocker        |   Milestone:  MacRuby 0.9          
Component:  MacRuby        |    Keywords:                       
---------------------------+------------------------------------------------
 macirb segfaults when executing the following script:

 {{{

 k, a, b, a1, b1 = 2, 4, 1, 12, 4

 while TRUE
   # Next approximation
   p, q, k = k*k, 2*k+1, k+1
   a, b, a1, b1 = a1, b1, p*a+q*a1, p*b+q*b1
   # Print common digits
   d = a / b
   d1 = a1 / b1
   while d == d1
     print d
     $stdout.flush
     a, a1 = 10*(a%b), 10*(a1%b1)
     d, d1 = a/b, a1/b1
   end
 end

 }}}

 MacRuby 0.9 (ruby 1.9.2) [universal-darwin10.0, x86_64]

 Backtrace:
 {{{
 Program received signal EXC_BAD_ACCESS, Could not access memory.
 Reason: KERN_INVALID_ADDRESS at address: 0xfffffffdfff49067
 0x00007fff8312a700 in _class_getSuperclass ()
 (gdb) backtrace
 #0  0x00007fff8312a700 in _class_getSuperclass ()
 #1  0x000000010002a5cf in rb_objc_type ()
 #2  0x0000000100068e99 in rb_fix_mul ()
 #3  0x000000010014b3bb in rb_vm_dispatch ()
 #4  0x0000000102d5bfa6 in ?? ()
 #5  0x0000000102d9e0e2 in ?? ()
 #6  0x0000000102d9d8e2 in ?? ()
 #7  0x0000000100162aa3 in rb_vm_run ()
 #8  0x0000000100162df1 in rb_vm_run_under ()
 #9  0x0000000100102397 in rb_f_eval ()
 #10 0x000000010014ad85 in rb_vm_dispatch ()
 #11 0x0000000100ce280c in dyld_stub_strncpy ()
 #12 0x0000000100ce3b1a in MREP_C4FCC80C17B94A8A840A6F05C9DA0933 ()
 #13 0x000000010014b36b in rb_vm_dispatch ()
 #14 0x0000000100ce280c in dyld_stub_strncpy ()
 #15 0x0000000100ce42cb in MREP_C4FCC80C17B94A8A840A6F05C9DA0933 ()
 #16 0x000000010014b3bb in rb_vm_dispatch ()
 #17 0x0000000100ce280c in dyld_stub_strncpy ()
 #18 0x0000000100ce4c50 in MREP_C4FCC80C17B94A8A840A6F05C9DA0933 ()
 #19 0x000000010014b3bb in rb_vm_dispatch ()
 #20 0x0000000103bbe58c in dyld_stub_strncpy ()
 #21 0x0000000103bbfa82 in MREP_E35DF62E8300447DAFB57E2B34A3A72E ()
 #22 0x000000010014b3bb in rb_vm_dispatch ()
 #23 0x0000000103bbe58c in dyld_stub_strncpy ()
 #24 0x0000000103bbfeac in MREP_E35DF62E8300447DAFB57E2B34A3A72E ()
 #25 0x000000010014b3bb in rb_vm_dispatch ()
 #26 0x0000000103bbe58c in dyld_stub_strncpy ()
 #27 0x0000000103bc011a in MREP_E35DF62E8300447DAFB57E2B34A3A72E ()
 #28 0x000000010014b396 in rb_vm_dispatch ()
 #29 0x0000000102d5bfa6 in ?? ()
 #30 0x0000000102d5ab86 in ?? ()
 #31 0x0000000102d5a26b in ?? ()
 #32 0x0000000102d5a173 in ?? ()
 #33 0x0000000100162aa3 in rb_vm_run ()
 #34 0x0000000100041790 in ruby_run_node ()
 #35 0x0000000100000d28 in main ()
 }}}

-- 
Ticket URL: <http://www.macruby.org/trac/ticket/1099>
MacRuby <http://macruby.org/>