When using gevent library fails with an error from the C lib

I have been trying to use gcouchbase for async io I get the following error:

python-couchbase: ev->state != PYCBC_EVSTATE_ACTIVE at src/iops.c:493. Abort[1] 4371 abort (core dumped)

Has anyone experienced this? any ideas?

Can you provide more information on how you get this error, or better yet, a script which reproduces it? also, are you using the 1.x or 0.x series of gevent?