Home // Uncategorized // [mpm_prefork:emerg] [pid 22743] (43)Identifier removed: AH00144: couldn’t grab the accept mutex [mpm_prefork:emerg] [pid 22743] (43)Identifier removed: AH00144: couldn’t grab the accept mutex May 13, 2016 | admin Fix: Add/Append following in httpd.conf Mutex sem and remove existing line Mutex default from apache config.