uwsgi crash

[uwsgi]
wsgi-file = srv.py 
master
processes =  8
#threads = 2 Using thread will breaks the server for now.
pidfile =  /tmp/uwsgi.pid  
cache2 = name=test,items=2,blocksize=10,keysize=5

cache2 = name=users,items=40000,blocksize=16384,keysize=64,bitmap=1
cache2 = name=general,items=65536,blocksize=16384,keysize=1024,bitmap=1 
cache2 = name=volume,items=65536,blocksize=16384,keysize=1024,bitmap=1 
cache2 = name=agents,items=60000,blocksize=80960,keysize=128,bitmap=1
cache2 = name=applications,items=20000,blocksize=51200,keysize=40,bitmap=1
cache2 = name=merchants,items=20000,blocksize=51200,keysize=40,bitmap=1
cache2 = name=tasks,items=20000,blocksize=51200,keysize=40,bitmap=1

add-header = Connection: Keep-Alive
reload-mercy = 8