Hi experts, I am new to netlink sockets. In my app , I am getting EPOLLERR in epoll_wait() on netlink socket continuously. epoll just notifies that there is a read event on socket (it does not tell if it is read or epollerr). What could be cause of this and what EPOLLERR on memory mapped netlink socket mean.is this Other side of netlink (kernel side) closed connection ?even if kernel side closed connection why non-stop repeated EPOLLERR s on netlink sockets ? What action should we take in such cases ? just close the socket or call getsockopt(SO_ERROR) to retrieve the pending error state from the socket and just continue without closing socket? how do we detect if kernel side closed the connection ? My understanding is : if we get read event notification from epoll on memory mapped netlink socket and in RX ring if the frame is neither NL_MMAP_STATUS_VALID and nor NL_MMAP_STATUS_COPY then we can conclude that this is a 'close()' from remote kernel socket and I can close connection by calling close() on my netlink socket. Is above understanding correct ? Please -- To unsubscribe from this list: send the line "unsubscribe netfilter-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
