[pypy-issue] Issue #4: "bad callback index" (pypy/revdb)

[Ronan Lamy]

New issue 4: "bad callback index"
https://bitbucket.org/pypy/revdb/issues/4/bad-callback-index

Ronan Lamy:

After running `python -m pytest pytest pypy/module/cpyext/test/test_arraymodule.py -k test_subclass` on pypy commit e698bd62fa9d in revdb, I'm getting the following:

```
(pypy-std) ronan at Berder:~/devel/pypy$ python revdb.py log.rdb 
RevDB: /home/ronan/.virtualenvs/revdb/bin/python -m pytest pypy/module/cpyext/test/test_arraymodule.py -k test_subclass

File "<builtin>/app_main.py", line 824 in setup_bootstrap_path:
(1)$ c
(83000000...)bad callback index 4ad6
Traceback (most recent call last):
  File "/home/ronan/.virtualenvs/pypy-std/site-packages/_revdb/interact.py", line 110, in run_command
    runner(argument)
  File "/home/ronan/.virtualenvs/pypy-std/site-packages/_revdb/interact.py", line 366, in command_continue
    self.pgroup.get_current_time())
  File "/home/ronan/.virtualenvs/pypy-std/site-packages/_revdb/interact.py", line 216, in move_forward
    self.pgroup.go_forward(steps)
  File "/home/ronan/.virtualenvs/pypy-std/site-packages/_revdb/process.py", line 368, in go_forward
    bkpt = self.active.forward(rel_next_clone, breakpoint_mode)
  File "/home/ronan/.virtualenvs/pypy-std/site-packages/_revdb/process.py", line 189, in forward
    bkpt = self._forward(steps, breakpoints_mode)
  File "/home/ronan/.virtualenvs/pypy-std/site-packages/_revdb/process.py", line 213, in _forward
    msg = self.recv()
  File "/home/ronan/.virtualenvs/pypy-std/site-packages/_revdb/process.py", line 118, in recv
    binary = self._recv_all(struct.calcsize("iIqqq"))
  File "/home/ronan/.virtualenvs/pypy-std/site-packages/_revdb/process.py", line 106, in _recv_all
    raise EOFError
EOFError

Something went wrong.  You are now in a pdb; press Ctrl-D to continue.
> /home/ronan/.virtualenvs/pypy-std/site-packages/_revdb/process.py(106)_recv_all()
-> raise EOFError
(Pdb) 
```
Any clue ?