nginx 0.5.15 *) Feature: the mail proxy supports authenticated SMTP proxying and the "smtp_auth", "smtp_capablities", and "xclient" directives. Thanks to Anton Yuzhaninov and Maxim Dounin. *) Feature: now the keep-alive connections are closed just after receiving the reconfiguration signal. *) Change: the "imap" and "auth" directives were renamed to the "mail" and "pop3_auth" directives. *) Bugfix: a segmentation fault occurred in worker process if the CRAM-MD5 authentication method was used and the APOP method was disabled. *) Bugfix: if the "starttls only" directive was used in POP3 protocol, then nginx allowed authentication without switching to the SSL mode. *) Bugfix: worker processes did not exit after reconfiguration and did not rotate logs if the eventport method was used. *) Bugfix: a worker process may got caught in an endless loop, if the "ip_hash" directive was used. *) Bugfix: now nginx does not log some alerts if eventport or /dev/poll methods are used.

--- a/src/event/modules/ngx_eventport_module.c
+++ b/src/event/modules/ngx_eventport_module.c
@@ -467,9 +467,9 @@ ngx_eventport_process_events(ngx_cycle_t
                            event_list[i].portev_object, revents);
 
             if (revents & (POLLERR|POLLHUP|POLLNVAL)) {
-                ngx_log_error(NGX_LOG_ALERT, cycle->log, 0,
-                              "port_getn() error fd:%d ev:%04Xd",
-                              event_list[i].portev_object, revents);
+                ngx_log_debug2(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
+                               "port_getn() error fd:%d ev:%04Xd",
+                               event_list[i].portev_object, revents);
             }
 
             if (revents & ~(POLLIN|POLLOUT|POLLERR|POLLHUP|POLLNVAL)) {