gauss:rubinius brian$ gdb --args vm/vm mspec/bin/mspec-ci --profile
GNU gdb 6.3.50-20050815 (Apple version gdb-962) (Sat Jul 26 08:14:40 UTC 2008)
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This GDB was configured as "i386-apple-darwin"...Reading symbols for shared libraries .... done

(gdb) r
Starting program: /Users/brian/devel/rubinius/vm/vm mspec/bin/mspec-ci --profile
Reading symbols for shared libraries +++. done
Assertion failed: (!call_frame->top_scope->method()->name()->nil_p()), function under_call_frame, file vm/builtin/block_environment.cpp, line 299.

Program received signal SIGABRT, Aborted.
0x94301e42 in __kill ()
(gdb) fr 5
#5  0x000cbf6d in rubinius::BlockEnvironment::under_call_frame (state=0x4001c0, cm=0x133ead0, caller=0x18609d0, call_frame=0xbff9c760, index=2) at vm/builtin/block_environment.cpp:299
299         assert(!call_frame->top_scope->method()->name()->nil_p());
(gdb) l
294           }
295           caller->blocks[index] = vmm;
296         }
297
298         be->scope(state, call_frame->scope);
299         assert(!call_frame->top_scope->method()->name()->nil_p());
300         be->top_scope(state, call_frame->top_scope);
301         be->method(state, cm);
302         be->local_count(state, cm->local_count());
303         be->name(state, call_frame->name);
(gdb) rp call_frame->name
:__metaclass_init__
$1 = void
(gdb) rp top_scope->method()
Attempt to extract a component of a value that is not a struct or union
(gdb) rp top_scope_->method()
No symbol "top_scope_" in current context.
(gdb) rp call_frame->top_scope          
#<VariableScope:0x151e928>
$2 = void
(gdb) rp call_frame->top_scope->method()
#<CompiledMethod:0x133ea80>
  exceptions: #<Tuple:0x1384980>
  file: :/Users/brian/devel/rubinius/lib/fileutils.rb
  iseq: #<InstructionSequence:0x138496c>
  lines: #<Tuple:0x1384990>: 5
    0
    1533
    1
    1534
    12
  >
  literals: #<Tuple:0x13849c8>: 4
    :FileUtils
    :METHODS
    #<CompiledMethod:0x133ead0>
    #<SendSite:0x13606b4>
  >
  local_count: 1
  local_names: #<Tuple:0x13849b4>: 1
    :@lre
  >
  name: nil
  required_args: 0
  scope: #<StaticScope:0x151e910>
  splat: nil
  stack_size: 3
  total_args: 0
>
$3 = void