Bug #75344 [Com]: Drupal 8 vanilla SIGBUS with disabled opcache

Edit report at https://bugs.php.net/bug.php?id=75344&edit=1 ID: 75344 Comment by: chingis at wodby dot com Reported by: chingis at wodby dot com Summary: Drupal 8 vanilla SIGBUS with disabled opcache Status: Open Type: Bug Package: opcache Operating System: Alpine 3.6 PHP Version: 7.1.10 Block user comment: N Private report: N New Comment: I resolved the problem by removing the line apc.serializer = "default", phpinfo now shows it as "php". The value "default" I took from http://php.net/manual/en/apc.configuration.php. Perhaps worth updating. Previous Comments: ------------------------------------------------------------------------ [2017-10-09 12:15:23] chingis at wodby dot com The segfault goes away if I disable apcu (Drupal uses it for caching by default), Increasing apc.shm_size from 32M to 512M doesn't help. ------------------------------------------------------------------------ [2017-10-09 08:57:58] chingis at wodby dot com opcache settings: [opcache] zend_extension = opcache.so opcache.enable = 0 opcache.validate_timestamps = 1 opcache.revalidate_freq = 2 opcache.max_accelerated_files = 20000 opcache.memory_consumption = 64 opcache.interned_strings_buffer = 16 opcache.fast_shutdown = 1 ------------------------------------------------------------------------ [2017-10-09 08:55:53] chingis at wodby dot com Description: ------------ Vanilla Drupal 8 on php-fpm (page /admin/people/permissions) with disabled opcache gives me SIGBUS segfault, the same thing happened with php 7.1.9. gdb backtrace: Core was generated by `php-fpm:'. Program terminated with signal SIGBUS, Bus error. #0 0x0000555dcdfcb2ad in zend_mm_free_heap (heap=0x7fa504e00040, ptr=0x7fa4f85c51d8, __zend_filename=0x555dce66a280 "/usr/src/php/Zend/zend_string.h", __zend_lineno=272, __zend_orig_filename=0x0, __zend_orig_lineno=0) at /usr/src/php/Zend/zend_alloc.c:1372 1372 /usr/src/php/Zend/zend_alloc.c: No such file or directory. (gdb) bt #0 0x0000555dcdfcb2ad in zend_mm_free_heap (heap=0x7fa504e00040, ptr=0x7fa4f85c51d8, __zend_filename=0x555dce66a280 "/usr/src/php/Zend/zend_string.h", __zend_lineno=272, __zend_orig_filename=0x0, __zend_orig_lineno=0) at /usr/src/php/Zend/zend_alloc.c:1372 #1 0x0000555dcdfcdbea in _efree (ptr=0x7fa4f85c51d8, __zend_filename=0x555dce66a280 "/usr/src/php/Zend/zend_string.h", __zend_lineno=272, __zend_orig_filename=0x0, __zend_orig_lineno=0) at /usr/src/php/Zend/zend_alloc.c:2433 #2 0x0000555dce0188ce in zend_string_release (s=0x7fa4f85c51d8) at /usr/src/php/Zend/zend_string.h:272 #3 0x0000555dce01cd0a in zend_array_destroy (ht=0x7fa4f6db39c0) at /usr/src/php/Zend/zend_hash.c:1311 #4 0x0000555dce002fd9 in _zval_dtor_func (p=0x7fa4f6db39c0, __zend_filename=0x555dce66a357 "/usr/src/php/Zend/zend_hash.c", __zend_lineno=1309) at /usr/src/php/Zend/zend_variables.c:43 #5 0x0000555dce018d00 in i_zval_ptr_dtor (zval_ptr=0x7fa4f6da35e0, __zend_filename=0x555dce66a357 "/usr/src/php/Zend/zend_hash.c", __zend_lineno=1309) at /usr/src/php/Zend/zend_variables.h:48 #6 0x0000555dce01cce4 in zend_array_destroy (ht=0x7fa4f6db3a80) at /usr/src/php/Zend/zend_hash.c:1309 #7 0x0000555dce002fd9 in _zval_dtor_func (p=0x7fa4f6db3a80, __zend_filename=0x555dce66a357 "/usr/src/php/Zend/zend_hash.c", __zend_lineno=1305) at /usr/src/php/Zend/zend_variables.c:43 #8 0x0000555dce018d00 in i_zval_ptr_dtor (zval_ptr=0x7fa4f6da3760, __zend_filename=0x555dce66a357 "/usr/src/php/Zend/zend_hash.c", __zend_lineno=1305) at /usr/src/php/Zend/zend_variables.h:48 #9 0x0000555dce01cca6 in zend_array_destroy (ht=0x7fa4f6db3b40) at /usr/src/php/Zend/zend_hash.c:1305 #10 0x0000555dce002fd9 in _zval_dtor_func (p=0x7fa4f6db3b40, __zend_filename=0x555dce66a357 "/usr/src/php/Zend/zend_hash.c", __zend_lineno=1309) at /usr/src/php/Zend/zend_variables.c:43 #11 0x0000555dce018d00 in i_zval_ptr_dtor (zval_ptr=0x7fa4f6dbba80, __zend_filename=0x555dce66a357 "/usr/src/php/Zend/zend_hash.c", __zend_lineno=1309) at /usr/src/php/Zend/zend_variables.h:48 #12 0x0000555dce01cce4 in zend_array_destroy (ht=0x7fa4f736c2a0) at /usr/src/php/Zend/zend_hash.c:1309 #13 0x0000555dce002fd9 in _zval_dtor_func (p=0x7fa4f736c2a0, __zend_filename=0x555dce667088 "/usr/src/php/Zend/zend_opcode.c", __zend_lineno=165) at /usr/src/php/Zend/zend_variables.c:43 #14 0x0000555dcdff0b91 in i_zval_ptr_dtor (zval_ptr=0x7fa4f734b570, __zend_filename=0x555dce667088 "/usr/src/php/Zend/zend_opcode.c", __zend_lineno=165) at /usr/src/php/Zend/zend_variables.h:48 #15 0x0000555dcdff111a in zend_cleanup_user_class_data (ce=0x7fa4f73284a8) at /usr/src/php/Zend/zend_opcode.c:165 #16 0x0000555dcdfeb48f in shutdown_executor () at /usr/src/php/Zend/zend_execute_API.c:338 #17 0x0000555dce005737 in zend_deactivate () at /usr/src/php/Zend/zend.c:1003 #18 0x0000555dcdf6b1fb in php_request_shutdown (dummy=0x0) at /usr/src/php/main/main.c:1877 #19 0x0000555dce101038 in main (argc=1, argv=0x7ffe19b34718) at /usr/src/php/sapi/fpm/fpm/fpm_main.c:1994 ==================== php -i output: phpinfo() PHP Version => 7.1.10 System => Linux php-2912993767-xrg4h 4.9.0-3-amd64 #1 SMP Debian 4.9.30-2+deb9u2 (2017-06-26) x86_64 Build Date => Oct 9 2017 07:31:32 Configure Command => './configure' '--build=x86_64-linux-musl' '--with-config-file-path=/usr/local/etc/php' '--with-config-file-scan-dir=/usr/local/etc/php/conf.d' '--disable-cgi' '--enable-ftp' '--enable-mbstring' '--enable-mysqlnd' '--with-curl' '--with-libedit' '--with-openssl' '--with-zlib' '--with-pcre-regex=/usr' '--enable-fpm' '--with-fpm-user=www-data' '--with-fpm-group=www-data' '--enable-debug' 'build_alias=x86_64-linux-musl' Server API => Command Line Interface Virtual Directory Support => disabled Configuration File (php.ini) Path => /usr/local/etc/php Loaded Configuration File => /usr/local/etc/php/php.ini Scan this dir for additional .ini files => /usr/local/etc/php/conf.d Additional .ini files parsed => /usr/local/etc/php/conf.d/docker-php-ext-amqp.ini, /usr/local/etc/php/conf.d/docker-php-ext-apcu.ini, /usr/local/etc/php/conf.d/docker-php-ext-ast.ini, /usr/local/etc/php/conf.d/docker-php-ext-bcmath.ini, /usr/local/etc/php/conf.d/docker-php-ext-bz2.ini, /usr/local/etc/php/conf.d/docker-php-ext-calendar.ini, /usr/local/etc/php/conf.d/docker-php-ext-exif.ini, /usr/local/etc/php/conf.d/docker-php-ext-gd.ini, /usr/local/etc/php/conf.d/docker-php-ext-geoip.ini, /usr/local/etc/php/conf.d/docker-php-ext-imagick.ini, /usr/local/etc/php/conf.d/docker-php-ext-imap.ini, /usr/local/etc/php/conf.d/docker-php-ext-intl.ini, /usr/local/etc/php/conf.d/docker-php-ext-ldap.ini, /usr/local/etc/php/conf.d/docker-php-ext-mcrypt.ini, /usr/local/etc/php/conf.d/docker-php-ext-memcached.ini, /usr/local/etc/php/conf.d/docker-php-ext-mongodb.ini, /usr/local/etc/php/conf.d/docker-php-ext-mysqli.ini, /usr/local/etc/php/conf.d/docker-php-ext-oauth.ini, /usr/local/etc/php/conf.d/docker-php-ext-opcache.ini, /usr/local/etc/php/conf.d/docker-php-ext-pcntl.ini, /usr/local/etc/php/conf.d/docker-php-ext-pdo_mysql.ini, /usr/local/etc/php/conf.d/docker-php-ext-pdo_pgsql.ini, /usr/local/etc/php/conf.d/docker-php-ext-pgsql.ini, /usr/local/etc/php/conf.d/docker-php-ext-redis.ini, /usr/local/etc/php/conf.d/docker-php-ext-soap.ini, /usr/local/etc/php/conf.d/docker-php-ext-sockets.ini, /usr/local/etc/php/conf.d/docker-php-ext-uploadprogress.ini, /usr/local/etc/php/conf.d/docker-php-ext-xdebug.ini, /usr/local/etc/php/conf.d/docker-php-ext-xmlrpc.ini, /usr/local/etc/php/conf.d/docker-php-ext-xsl.ini, /usr/local/etc/php/conf.d/docker-php-ext-yaml.ini, /usr/local/etc/php/conf.d/docker-php-ext-zip.ini, /usr/local/etc/php/conf.d/docker-php.ini PHP API => 20160303 PHP Extension => 20160303 Zend Extension => 320160303 Zend Extension Build => API320160303,NTS,debug PHP Extension Build => API20160303,NTS,debug Debug Build => yes Thread Safety => disabled Zend Signal Handling => enabled Zend Memory Manager => enabled Zend Multibyte Support => provided by mbstring IPv6 Support => enabled DTrace Support => disabled Registered PHP Streams => https, ftps, compress.zlib, compress.bzip2, php, file, glob, data, http, ftp, phar, zip Registered Stream Socket Transports => tcp, udp, unix, udg, ssl, tls, tlsv1.0, tlsv1.1, tlsv1.2 Registered Stream Filters => zlib.*, convert.iconv.*, bzip2.*, string.rot13, string.toupper, string.tolower, string.strip_tags, convert.*, consumed, dechunk, mcrypt.*, mdecrypt.* This program makes use of the Zend Scripting Language Engine: Zend Engine v3.1.0, Copyright (c) 1998-2017 Zend Technologies with Zend OPcache v7.1.10, Copyright (c) 1999-2017, by Zend Technologies ==== php -m: [PHP Modules] amqp apcu ast bcmath bz2 calendar Core ctype curl date dom exif fileinfo filter ftp gd geoip hash iconv imagick imap intl json ldap libxml mbstring mcrypt memcached mongodb mysqli mysqlnd OAuth openssl pcntl pcre PDO pdo_mysql pdo_pgsql pdo_sqlite pgsql Phar posix readline redis Reflection session SimpleXML soap sockets SPL sqlite3 standard tokenizer uploadprogress xml xmlreader xmlrpc xmlwriter xsl yaml Zend OPcache zip zlib [Zend Modules] Zend OPcache ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=75344&edit=1