Hi OVS Team,
We are using almost newest version of OVS (master branch, pulled on the
14th of November) under Xen. There is no difference in datapath version
- tested on both kernel (3.17) module and with OVS-dkms version. There
is no difference if using a controller or not.
The problem is: when there is more than 6-10k packets per second, from
even one VM to varied destinations, then vswitch process eats
more-and-more memory, until OOM. Memory usage starts growing a few
seconds after such flood begins, and stops growing immediately when such
flood is over. Valgrind is useless - it slows down too much to eat few
thousands packets per second, therefore I'm unable to find out where the
leak is.
The simplest python code to generate such packet flood from VM:
import random, socket, struct
sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
while True:
ip_raw = struct.pack('>I', random.randint(1, 0xffffffff))
ip = socket.inet_ntoa(ip_raw)
try:
sock.sendto("123", (ip, 12345))
except:
pass
Please help
--
Best regards,
Adam
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