On Apr 29, 2010, at 11:19 AM, Sebastian Sjöberg wrote: > Hi,
Some additions and corrections. I've tested this on the latest libevent from git. > > I've encountered a problem with openssl bufferevents where libevent reports > fd:s as writeable but no action is being taken. After adding some more debug printouts in libevent it turns out that the fd:s are reported as readable but they never get processed because the macro N_ACTIVE_CALLBACKS() reports 0. > > The program does the following: > > An evconnlistener waits for connections and when an connection by a client is > made we set up an reading event. When the new connection is readable we peek > the data to see if it's tls and if it's tls we set up an openssl bufferevent > on that connection. We read the http request and write some data as reply, > the bufferevent is then kept as we write commands on this connection when > needed. > > The issue appears (intermittently) when I'm connecting 20-100 clients and > libevent debug output continuously reports: > > [debug] epoll_dispatch: epoll_wait reports 78 > [debug] timeout_next: in 88 seconds > [debug] epoll_dispatch: epoll_wait reports 78 > [debug] timeout_next: in 88 seconds > [debug] epoll_dispatch: epoll_wait reports 78 > [debug] timeout_next: in 88 seconds > [debug] epoll_dispatch: epoll_wait reports 78 > [debug] timeout_next: in 88 seconds > [debug] epoll_dispatch: epoll_wait reports 78 > [debug] timeout_next: in 88 seconds > [debug] epoll_dispatch: epoll_wait reports 78 > [debug] timeout_next: in 88 seconds > [debug] epoll_dispatch: epoll_wait reports 78 > [debug] timeout_next: in 88 seconds > > There is no problem when I'm connecting without tls so I think this is an > issue with openssl bufferevents and my guess is that somehow the write events > that openssl bufferevents sets up sometimes doesn't get removed or disabled > properly. > > Is this an issue that someone else has seen and does anyone have any pointers > on how to debug this problem? > > Best regards, > Sebastian Sjöberg > > *********************************************************************** > To unsubscribe, send an e-mail to majord...@freehaven.net with > unsubscribe libevent-users in the body. *********************************************************************** To unsubscribe, send an e-mail to majord...@freehaven.net with unsubscribe libevent-users in the body.
