From 4502bf57b346d95698def5892beb58ba9f78e582 Mon Sep 17 00:00:00 2001 From: Igor Sysoev Date: Mon, 15 Jan 2007 16:00:51 +0000 Subject: [PATCH] add debug logging for FastCGI zero size buf alert --- src/event/ngx_event_pipe.c | 6 ++++++ src/http/modules/ngx_http_fastcgi_module.c | 6 ++++++ 2 files changed, 12 insertions(+) diff --git a/src/event/ngx_event_pipe.c b/src/event/ngx_event_pipe.c index 59b89b0f9..0239bd105 100644 --- a/src/event/ngx_event_pipe.c +++ b/src/event/ngx_event_pipe.c @@ -531,6 +531,12 @@ ngx_event_pipe_write_to_downstream(ngx_event_pipe_t *p) } else if (!p->cachable && p->in) { cl = p->in; + ngx_log_debug3(NGX_LOG_DEBUG_EVENT, p->log, 0, + "pipe write buf ls:%d %p %z", + cl->buf->last_shadow, + cl->buf->pos, + cl->buf->last - cl->buf->pos); + if (cl->buf->recycled && cl->buf->last_shadow && bsize + cl->buf->last - cl->buf->pos > p->busy_size) diff --git a/src/http/modules/ngx_http_fastcgi_module.c b/src/http/modules/ngx_http_fastcgi_module.c index ab214770e..3791b3e14 100644 --- a/src/http/modules/ngx_http_fastcgi_module.c +++ b/src/http/modules/ngx_http_fastcgi_module.c @@ -1310,6 +1310,9 @@ ngx_http_fastcgi_input_filter(ngx_event_pipe_t *p, ngx_buf_t *buf) ngx_log_debug1(NGX_LOG_DEBUG_EVENT, p->log, 0, "input buf #%d", b->num); + ngx_log_debug2(NGX_LOG_DEBUG_EVENT, p->log, 0, + "input buf %p %z", b->pos, b->last - b->pos); + if (f->pos + f->length < f->last) { @@ -1350,6 +1353,9 @@ ngx_http_fastcgi_input_filter(ngx_event_pipe_t *p, ngx_buf_t *buf) b->shadow = buf; b->last_shadow = 1; + ngx_log_debug2(NGX_LOG_DEBUG_EVENT, p->log, 0, + "input buf last %p %z", b->pos, b->last - b->pos); + return NGX_OK; }