Hi all,
in a userspace firewall (using libnetfilter_queue-0.0.17,
libnfnetlink-0.0.41) I'm writing some strange behavior appeared when
testing with tcpreplay.
Starting tcpreplay on another computer to replay packets onto the
firewall, the packets are received in userspace at first. After a
while the poll() call sets POLLERR in revents, and after a while calls
to poll() just wont return to the calling function. More exactly, it
is __kernel_vsyscall() that doesn't return. Starting netcat in
parallel to tcpreplay makes poll() on the firewall return.
Does anybody have an idea what's causing this?
Thanks
Ingmar
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