Package: php7.0-fpm Version: 7.0.27-0+deb9u Severity: important Dear Maintainer,
I was upgrading from old-stable to stable. I was using php-fpm to serve content from several website via virtual servers. These websites have different directories. The webserver-root is a symlinked directory linking to a different directory. When upgrading to stretch this setup failed for some php-applications but not all producing a content encoding error. Tested the following with recent installation of Firefox, Opera and Chrome. Client OS is an Ubuntu 17.10. Server-OS is a Debian-Stable. Setup for diagnosis: * Fresh install with untouched config for php7.0-fpm (except logging to syslog) * Fresh install with untouched config for phpmyadmin - integrated via "alias" directive in apache config * phpinfo.php file with <? php phpinfo(); ?> * Fresh download with untouched config for extplorer - files are in webroot - no "alias" directive --> Using standard config. Shouldn't be some wierd config issue Looking at apache2 error, phperrorlog, fpm logs and syslog but the issue does not produce any messages or entries. * phpmyadmin or extplorer in symlinked webroot with php7.0-fpm --> Encoding error; Content is gzipped (verified with wget --header "Accept-Encoding: gzip, deflate") * phpinfo in symlinked webroot with php7.0-fpm --> No Encoding error; Content is gzipped * phpmyadmin or extplorer in symlinked webroot with libapache2-mod-php7.0 --> No Encoding error * phpmyadmin or extplorer in not-symlinked webroot with php7.0-fpm --> No Encoding error * when using wget without --header "Accept-Encoding: gzip, deflate" --> No Encoding error Workaround: * In php.ini for fpm: disable_functions = ob_gzhandler --> Might make problems for other apps or setups? Conclusion: My deduction is, that for some wierd reason it seems to be a problem when a php-application is capable of using the gzip function in php7.0-fpm when the path leading to the file contains a symlink somewhere along the path Perhaps some dual compression as apache seems to compress the output as well? But wasn't able to see any difference in the compressed output using wget... apache2-mod-deflate is installed and activated. Configuration of mods-available/deflate.conf is unchanged Feel free to ask for more details :) Thanks Christopher -- Package-specific info: ==== Additional PHP 7.0 information ==== ++++ PHP 7.0 SAPI (php7.0query -S): ++++ ++++ PHP 7.0 Extensions (php7.0query -M -v): ++++ ++++ Configuration files: ++++ [PHP] engine = On short_open_tag = Off precision = 14 output_buffering = 4096 zlib.output_compression = Off implicit_flush = Off unserialize_callback_func = serialize_precision = 17 disable_functions = pcntl_alarm,pcntl_fork,pcntl_waitpid,pcntl_wait,pcntl_wifexited,pcntl_wifstopped,pcntl_wifsignaled,pcntl_wifcontinued,pcntl_wexitstatus,pcntl_wtermsig,pcntl_wstopsig,pcntl_signal,pcntl_signal_dispatch,pcntl_get_last_error,pcntl_strerror,pcntl_sigprocmask,pcntl_sigwaitinfo,pcntl_sigtimedwait,pcntl_exec,pcntl_getpriority,pcntl_setpriority disable_classes = zend.enable_gc = On expose_php = Off max_execution_time = 30 max_input_time = 60 memory_limit = 128M error_reporting = E_ALL display_errors = Off display_startup_errors = On log_errors = On log_errors_max_len = 1024 ignore_repeated_errors = Off ignore_repeated_source = Off report_memleaks = On track_errors = Off html_errors = On error_log = syslog variables_order = "GPCS" request_order = "GP" register_argc_argv = Off auto_globals_jit = On post_max_size = 8M auto_prepend_file = auto_append_file = default_mimetype = "text/html" default_charset = "UTF-8" doc_root = user_dir = enable_dl = Off file_uploads = On upload_max_filesize = 2M max_file_uploads = 20 allow_url_fopen = On allow_url_include = Off default_socket_timeout = 60 [CLI Server] cli_server.color = On [Date] [filter] [iconv] [intl] [sqlite3] [Pcre] [Pdo] [Pdo_mysql] pdo_mysql.cache_size = 2000 pdo_mysql.default_socket= [Phar] [mail function] SMTP = localhost smtp_port = 25 mail.add_x_header = On [SQL] sql.safe_mode = Off [ODBC] odbc.allow_persistent = On odbc.check_persistent = On odbc.max_persistent = -1 odbc.max_links = -1 odbc.defaultlrl = 4096 odbc.defaultbinmode = 1 [Interbase] ibase.allow_persistent = 1 ibase.max_persistent = -1 ibase.max_links = -1 ibase.timestampformat = "%Y-%m-%d %H:%M:%S" ibase.dateformat = "%Y-%m-%d" ibase.timeformat = "%H:%M:%S" [MySQLi] mysqli.max_persistent = -1 mysqli.allow_persistent = On mysqli.max_links = -1 mysqli.cache_size = 2000 mysqli.default_port = 3306 mysqli.default_socket = mysqli.default_host = mysqli.default_user = mysqli.default_pw = mysqli.reconnect = Off [mysqlnd] mysqlnd.collect_statistics = On mysqlnd.collect_memory_statistics = Off [OCI8] [PostgreSQL] pgsql.allow_persistent = On pgsql.auto_reset_persistent = Off pgsql.max_persistent = -1 pgsql.max_links = -1 pgsql.ignore_notice = 0 pgsql.log_notice = 0 [bcmath] bcmath.scale = 0 [browscap] [Session] session.save_handler = files session.use_strict_mode = 0 session.use_cookies = 1 session.use_only_cookies = 1 session.name = PHPSESSID session.auto_start = 0 session.cookie_lifetime = 0 session.cookie_path = / session.cookie_domain = session.cookie_httponly = session.serialize_handler = php session.gc_probability = 0 session.gc_divisor = 1000 session.gc_maxlifetime = 1440 session.referer_check = session.cache_limiter = nocache session.cache_expire = 180 session.use_trans_sid = 0 session.hash_function = 0 session.hash_bits_per_character = 5 url_rewriter.tags = "a=href,area=href,frame=src,input=src,form=fakeentry" [Assertion] zend.assertions = -1 [COM] [mbstring] [gd] [exif] [Tidy] tidy.clean_output = Off [soap] soap.wsdl_cache_enabled=1 soap.wsdl_cache_dir="/tmp" soap.wsdl_cache_ttl=86400 soap.wsdl_cache_limit = 5 [sysvshm] [ldap] ldap.max_links = -1 [mcrypt] [dba] [opcache] [curl] [openssl] -- System Information: Debian Release: 9.3 APT prefers stable-updates APT policy: (500, 'stable-updates'), (500, 'oldstable-updates'), (500, 'stable'), (500, 'oldstable') Architecture: x86_64 Kernel: Linux 4.9.0-5-amd64 (SMP w/2 CPU cores) Locale: LANG=de_DE.UTF-8, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8), LANGUAGE=de_DE.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system)