# HG changeset patch
# User Maxim Dounin <mdounin@mdounin.ru>
# Date 1634564819 -10800
# Node ID 2f443cac3f1e0b05233eda3ab41702f89e644301
# Parent  01829d1620956241455867fd8ba28ba54eed5aa9
Upstream: fixed logging level of upstream invalid header errors.

In b87b7092cedb (nginx 1.21.1), logging level of "upstream sent invalid
header" errors was accidentally changed to "info".  This change restores
the "error" level, which is a proper logging level for upstream-side
errors.

diff --git a/src/http/modules/ngx_http_fastcgi_module.c b/src/http/modules/ngx_http_fastcgi_module.c
--- a/src/http/modules/ngx_http_fastcgi_module.c
+++ b/src/http/modules/ngx_http_fastcgi_module.c
@@ -2021,7 +2021,7 @@ ngx_http_fastcgi_process_header(ngx_http
 
             /* rc == NGX_HTTP_PARSE_INVALID_HEADER */
 
-            ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
+            ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
                           "upstream sent invalid header: \"%*s\\x%02xd...\"",
                           r->header_end - r->header_name_start,
                           r->header_name_start, *r->header_end);
diff --git a/src/http/modules/ngx_http_proxy_module.c b/src/http/modules/ngx_http_proxy_module.c
--- a/src/http/modules/ngx_http_proxy_module.c
+++ b/src/http/modules/ngx_http_proxy_module.c
@@ -2021,7 +2021,7 @@ ngx_http_proxy_process_header(ngx_http_r
 
         /* rc == NGX_HTTP_PARSE_INVALID_HEADER */
 
-        ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
+        ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
                       "upstream sent invalid header: \"%*s\\x%02xd...\"",
                       r->header_end - r->header_name_start,
                       r->header_name_start, *r->header_end);
diff --git a/src/http/modules/ngx_http_scgi_module.c b/src/http/modules/ngx_http_scgi_module.c
--- a/src/http/modules/ngx_http_scgi_module.c
+++ b/src/http/modules/ngx_http_scgi_module.c
@@ -1142,7 +1142,7 @@ ngx_http_scgi_process_header(ngx_http_re
 
         /* rc == NGX_HTTP_PARSE_INVALID_HEADER */
 
-        ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
+        ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
                       "upstream sent invalid header: \"%*s\\x%02xd...\"",
                       r->header_end - r->header_name_start,
                       r->header_name_start, *r->header_end);
diff --git a/src/http/modules/ngx_http_uwsgi_module.c b/src/http/modules/ngx_http_uwsgi_module.c
--- a/src/http/modules/ngx_http_uwsgi_module.c
+++ b/src/http/modules/ngx_http_uwsgi_module.c
@@ -1363,7 +1363,7 @@ ngx_http_uwsgi_process_header(ngx_http_r
 
         /* rc == NGX_HTTP_PARSE_INVALID_HEADER */
 
-        ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
+        ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
                       "upstream sent invalid header: \"%*s\\x%02xd...\"",
                       r->header_end - r->header_name_start,
                       r->header_name_start, *r->header_end);