>А патчи точно применены, и новый nginx запущен?
Да, конечно. Новый nginx запускал через restart.


>Покажите diff -u по отношению к коробочной версии.

# diff -u nginx-0.8.50/ nginx-0.8.50-patched/ -r
Only in nginx-0.8.50-patched/src/core: ngx_output_chain.c.orig
diff -u -r nginx-0.8.50/src/http/ngx_http_copy_filter_module.c nginx-0.8.50-patched/src/http/ngx_http_copy_filt er_module.c
--- nginx-0.8.50/src/http/ngx_http_copy_filter_module.c 2010-05-14 18:18:44.000000000 +0600
+++ nginx-0.8.50-patched/src/http/ngx_http_copy_filter_module.c 2010-10-15 04:53:23.000000000 +0600
@@ -118,8 +118,10 @@
ctx->filter_ctx = r;

#if (NGX_HAVE_FILE_AIO)
- if (ngx_file_aio && clcf->aio) {
- ctx->aio_handler = ngx_http_copy_aio_handler;
+ if (ngx_file_aio) {
+ if (clcf->aio) {
+ ctx->aio_handler = ngx_http_copy_aio_handler;
+ }
#if (NGX_HAVE_AIO_SENDFILE)
c->aio_sendfile = (clcf->aio == NGX_HTTP_AIO_SENDFILE);
#endif
@@ -156,6 +158,11 @@
ngx_file_t *file;
ngx_http_ephemeral_t *e;

+ if (r->aio) {
+ c->busy_sendfile = NULL;
+ return rc;
+ }
+
file = c->busy_sendfile->file;
offset = c->busy_sendfile->file_pos;

@@ -211,6 +218,8 @@

r->main->blocked++;
r->aio = 1;
+
+ ctx->aio = 1;
}


diff -u -r nginx-0.8.50/src/http/ngx_http_request.c nginx-0.8.50-patched/src/http/ngx_http_request.c
--- nginx-0.8.50/src/http/ngx_http_request.c 2010-07-05 19:35:20.000000000 +0600
+++ nginx-0.8.50-patched/src/http/ngx_http_request.c 2010-10-15 04:53:23.000000000 +0600
@@ -2218,17 +2218,17 @@
return;
}

- } else {
- if (wev->delayed || r->aio) {
- ngx_log_debug0(NGX_LOG_DEBUG_HTTP, wev->log, 0,
- "http writer delayed");
+ }

- if (ngx_handle_write_event(wev, clcf->send_lowat) != NGX_OK) {
- ngx_http_close_request(r, 0);
- }
+ if (wev->delayed || r->aio) {
+ ngx_log_debug0(NGX_LOG_DEBUG_HTTP, wev->log, 0,
+ "http writer delayed");

- return;
+ if (ngx_handle_write_event(wev, clcf->send_lowat) != NGX_OK) {
+ ngx_http_close_request(r, 0);
}
+
+ return;
}

rc = ngx_http_output_filter(r, NULL);
@@ -2244,7 +2244,7 @@

if (r->buffered || r->postponed || (r == r->main && c->buffered)) {

- if (!wev->ready && !wev->delayed) {
+ if (!wev->delayed) {
ngx_add_timer(wev, clcf->send_timeout);
}

diff -u -r nginx-0.8.50/src/os/unix/ngx_linux_aio_read.c nginx-0.8.50-patched/src/os/unix/ngx_linux_aio_read.c
--- nginx-0.8.50/src/os/unix/ngx_linux_aio_read.c 2009-11-05 19:12:30.000000000 +0600
+++ nginx-0.8.50-patched/src/os/unix/ngx_linux_aio_read.c 2010-10-15 04:48:47.000000000 +0600
@@ -95,6 +95,10 @@
n = io_submit(ngx_aio_ctx, 1, piocb);

if (n == 1) {
+ ev->active = 1;
+ ev->ready = 0;
+ ev->complete = 0;
+
return NGX_AGAIN;
}