fixed a serious regression for linux aio in nginx-1.0.10-epoll_check_stale_wev.patch, thanks Maxim Dounin! released ngx_openresty 1.0.10.21.

patches/nginx-1.0.10-epoll_check_stale_wev.patch

@@ -1,21 +1,20 @@
 --- nginx-1.0.10/src/event/modules/ngx_epoll_module.c	2011-09-30 22:12:53.000000000 +0800
-+++ nginx-1.0.10-patched/src/event/modules/ngx_epoll_module.c	2011-11-07 18:07:04.764111952 +0800
++++ nginx-1.0.10-patched/src/event/modules/ngx_epoll_module.c	2011-11-30 11:08:46.775817019 +0800
-@@ -681,6 +681,18 @@
+@@ -682,6 +682,17 @@
- 
          wev = c->write;
  
-+        if (c->fd == -1 || wev->instance != instance) {
+         if ((revents & EPOLLOUT) && wev->active) {
-+
++            if (c->fd == -1 || wev->instance != instance) {
-+            /*
-+             * the stale event from a file descriptor
-+             * that was just closed in this iteration
-+             */
 +
-+            ngx_log_debug1(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
++                /*
-+                           "epoll: stale event %p", c);
++                 * the stale event from a file descriptor
-+            continue;
++                 * that was just closed in this iteration
-+        }
++                 */
 +
-         if ((revents & EPOLLOUT) && wev->active) {
++                ngx_log_debug1(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
++                               "epoll: stale event %p", c);
++                continue;
++            }
  
              if (flags & NGX_POST_THREAD_EVENTS) {
+                 wev->posted_ready = 1;

util/ver

@@ -1,7 +1,7 @@
 #!/bin/bash
 
 main_ver=1.0.10
-minor_ver=19
+minor_ver=21
 version=$main_ver.$minor_ver
 echo $version