Segmentfault in exotic multi-thread with Thread#kill

[ibc]

loop do
    printf "."
    t = Thread.new { AE.run { AE.add_timer(2) {} } }
    AE.stop
end

Waiting a bit or pressing Ctrl+C (or probably any signal) "sometimes" causes the following different critical error:

• src/unix/core.c:256: uv__finish_close: Assertion!(handle->flags & UV_CLOSED)' failed.`
• malloc.c:4636: _int_malloc: Assertionvictim->fd_nextsize->bk_nextsize == victim' failed.`
• src/unix/core.c:256: uv__finish_close: Assertion!(handle->flags & UV_CLOSED)' failed.`
• Segmentfault:

  Segmentation fault
  ruby 1.9.2p290 (2011-07-09 revision 32553) [x86_64-linux]
  -- control frame ----------
  c:0007 p:---- s:0017 b:0017 l:000016 d:000016 CFUNC  :new
  c:0006 p:0027 s:0014 b:0014 l:001db8 d:000013 BLOCK  ./bugs.rb:44
  c:0005 p:---- s:0011 b:0011 l:000010 d:000010 FINISH
  c:0004 p:---- s:0009 b:0009 l:000008 d:000008 CFUNC  :loop
  c:0003 p:0191 s:0006 b:0006 l:001db8 d:002178 EVAL   ./bugs.rb:42
  c:0002 p:---- s:0004 b:0004 l:000003 d:000003 FINISH
  c:0001 p:0000 s:0002 b:0002 l:001db8 d:001db8 TOP  
  ---------------------------
  -- Ruby level backtrace information ----------------------------------------
  ./bugs.rb:42:in `
  '
  ./bugs.rb:42:in`loop'
  ./bugs.rb:44:in `block in 
  '
  ./bugs.rb:44:in`new'
  -- C level backtrace information -------------------------------------------
  /usr/lib/libruby-1.9.1.so.1.9(rb_vm_bugreport+0x61) [0x7f8bb1f36db1]
  [...]
  /usr/lib/libruby-1.9.1.so.1.9(+0xf3c84) [0x7f8bb1ed8c84]
  /lib/x86_64-linux-gnu/libc.so.6(+0x36420) [0x7f8bb1a7a420]
  /usr/lib/libruby-1.9.1.so.1.9(+0x6da78) [0x7f8bb1e52a78]
  [...]
  /usr/lib/libruby-1.9.1.so.1.9(+0x6d55a) [0x7f8bb1e5255a]
  /home/ibc/Proyectos/AsyncEngine/lib/asyncengine/asyncengine_ext.so(+0x1a3a4) [0x7f8bb03e13a4]
  /usr/lib/libruby-1.9.1.so.1.9(+0x6d55a) [0x7f8bb1e5255a]
  [...]
  

Obviously there is a thread problem. The code above is really ugly and dangerous, but it should not crash.

[ibc]

Cannot reproduce it anymore... but I'll let it open for now.

[ibc]

Fixed.