[Python-Dev] Need help in debugging the python core

[Victor Stinner]

2016-09-02 8:49 GMT+02:00 Sajjanshetty, Amresh <Amresh.Sajjanshetty at netapp.com>:
> I’m using asyncio and paramiko to multiplex different channels into a single
> SSH connection.

Hum, asyncio found bugs in CPython. Please try with a more recent
version of CPython than 3.4.3 :-/

> Program terminated with signal 11, Segmentation fault.
>
> #0  _PyObject_Malloc (ctx=0x0, nbytes=52) at Objects/obmalloc.c:1159

Hum, a crash on a memory allocation is usually a buffer overflow.

Please retry with Python 3.6 using PYTHONMALLOC=debug:
https://docs.python.org/dev/using/cmdline.html#envvar-PYTHONMALLOC

Calling regulary gc.collect() may help PYTHONMALLOC=debug to detect
buffer overflows earlier.

Victor