Comment 1 for bug 1059330

HI, we have found the reason caused the problem in file named inet_hashtables.c. The function __inet_check_established caused spin_lock.

We modify /etc/sysctl.conf, add:

net.ipv4.tcp_syncookies = 1
net.ipv4.tcp_tw_reuse = 1
net.ipv4.tcp_tw_recycle = 1
net.ipv4.tcp_fin_timeout = 30

Now we can playback the tcpdump file continuously.

thank you very much for your reply.
Now we are testing the great playback tool.

PS: the tcpdump-mode fast may not work so effective in our experiments.