kangle跑wp程序报504 upstream protocol header size is too big

小樱

upstream protocol header size is too big
header不合法，通过调试模式查看

导致头超过了4M限制。
在wp程序中有独立配置开启了display_errors，把它关闭
或者直接修改警告的这个文件/wwwroot/wp-includes/functions.php 1618行

把is_dir前面加一个@就关了警告
结果就是cpu 100%
好好研究下，肯定能找到wp的bug提交给wp官方修复

https://core.trac.wordpress.org/timeline

https://core.trac.wordpress.org/ticket/43417

1. Index: src/wp-includes/functions.php
   
2. ===================================================================
   
3. --- src/wp-includes/functions.php
   
4. +++ src/wp-includes/functions.php
   
5. @@ -1680,6 +1680,10 @@ function wp_mkdir_p( $target ) {
   
6.          // We need to find the permissions of the parent folder that exists and inherit that.
   
7.          $target_parent = dirname( $target );
   
8.          while ( '.' != $target_parent && ! is_dir( $target_parent ) ) {
   
9. +                // Infinite loop protection (see https://core.trac.wordpress.org/ticket/43417)
   
10. +                if ( dirname( $target_parent ) === $target_parent ) {
    
11. +                        break;
    
12. +                }
    
13.                  $target_parent = dirname( $target_parent );
    
14.          }

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