Php
zend_mm_heap 損壞的 PHP 致命錯誤:無法重新聲明 composerRequire
我們有一個網路伺服器,除了正常的請求外,還會上傳大文件。
一些請求(例如 1/10)被丟棄。我們在錯誤日誌中看到以下錯誤。
==> /var/log/apache2/web_error_ssl.log <== [Fri Dec 07 15:38:24.154218 2018] [php7:error] [pid 8333] [client ****:****:****:****:216:3eff:fe0b:bb4f:55760] PHP Fatal error: Cannot redeclare composerRequire2f3df4313599c81c8cd86cade0406e0b() (previously declared in /var/www/releases/test/vendor/composer/autoload_real.php:54) in /var/www/releases/test/vendor/composer/autoload_real.php on line 61 ==> /var/log/apache2/error.log <== [Fri Dec 07 15:38:24.385423 2018] [core:notice] [pid 18418] AH00052: child pid 8333 exit signal Segmentation fault (11) ==> /var/log/apache2/web_error_ssl.log <== [Fri Dec 07 15:38:27.243422 2018] [php7:error] [pid 8318] [client ****:****:****:****:216:3eff:fe0b:bb4f:56308] PHP Fatal error: Cannot redeclare composerRequire2f3df4313599c81c8cd86cade0406e0b() (previously declared in /var/www/releases/test/vendor/composer/autoload_real.php:54) in /var/www/releases/test/vendor/composer/autoload_real.php on line 61 ==> /var/log/apache2/error.log <== zend_mm_heap corrupted
環境:
更新了 debian 拉伸
Apache 版本:2.4.25-3+deb9u6,帶有 prefork mpm。
PHP版本:7.1.24-1+0~20181112093455.10+stretch~1.gbp09a4fd(來自sury儲存庫)
PHP 作為 apache2 模組載入。
到目前為止,我們已經測試過:
- opcache.enable = 0 / 1
- opcache.enable_cli = 0 / 1
- output_buffering = 關閉 / 4096 / 16777216
- realpath_cache_size = 0 / 4096k
- 替換幾個版本的 PHP7.0 和 PHP7.1(來自 debian repo 和 sury repo)
- index.php: 定義(‘HHVM_VERSION’, ?); ? =真/假
- /etc/apache2/envvars: 導出 USE_ZEND_ALLOC = 0 / 1
- 切換到反向移植核心
幫助我們的是網路伺服器重新載入 - 它解決了幾分鐘的問題,然後重新開始。
當我們捕捉到失敗的程序時,我們得到:
open("/var/www/releases/test/vendor/composer/autoload_real.php", O_RDONLY) = 17 fstat(17, {st_mode=S_IFREG|0644, st_size=2103, ...}) = 0 fstat(17, {st_mode=S_IFREG|0644, st_size=2103, ...}) = 0 fstat(17, {st_mode=S_IFREG|0644, st_size=2103, ...}) = 0 fstat(17, {st_mode=S_IFREG|0644, st_size=2103, ...}) = 0 mmap(NULL, 2103, PROT_READ, MAP_SHARED, 17, 0) = 0x7f61c3186000 getpid() = 21075 getpid() = 21075 getpid() = 21075 write(12, "[Thu Dec 06 23:58:59.246179 2018] [php7:error] [pid 21075] [client ****:****:****:****::aaaa:1:31248] PHP Fatal error: Cannot redeclare composerRequire2f3df4313599c81c8cd86cade0406e0b() (previously declared in /var/www/releases/test/vendor/composer/autoload_real.php:54) in /var/www/releases/test/vendor/composer/autoload_real.php on line 61\n", 348) = 348 chdir("/") = 0 munmap(0x7f61ab800000, 16781312) = 0 setitimer(ITIMER_PROF, {it_interval={tv_sec=0, tv_usec=0}, it_value={tv_sec=0, tv_usec=0}}, NULL) = 0 --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x7f61adfbae68} ---
autoload_real.php 包含的文件是由
composer install --no-progress --prefer-dist --no-dev --classmap-authoritative
第 54 - 61 行如下:
function composerRequire2f3df4313599c81c8cd86cade0406e0b($fileIdentifier, $file) { if (empty($GLOBALS['__composer_autoload_files'][$fileIdentifier])) { require $file; $GLOBALS['__composer_autoload_files'][$fileIdentifier] = true; } }
PHP 模組列表:
root@server:~# dpkg -l | grep php7.1 ii libapache2-mod-php7.1 7.1.24-1+0~20181112093455.10+stretch~1.gbp09a4fd amd64 server-side, HTML-embedded scripting language (Apache 2 module) ii php7.1-bcmath 7.1.24-1+0~20181112093455.10+stretch~1.gbp09a4fd amd64 Bcmath module for PHP ii php7.1-cli 7.1.24-1+0~20181112093455.10+stretch~1.gbp09a4fd amd64 command-line interpreter for the PHP scripting language ii php7.1-common 7.1.24-1+0~20181112093455.10+stretch~1.gbp09a4fd amd64 documentation, examples and common module for PHP ii php7.1-curl 7.1.24-1+0~20181112093455.10+stretch~1.gbp09a4fd amd64 CURL module for PHP ii php7.1-gd 7.1.24-1+0~20181112093455.10+stretch~1.gbp09a4fd amd64 GD module for PHP ii php7.1-json 7.1.24-1+0~20181112093455.10+stretch~1.gbp09a4fd amd64 JSON module for PHP ii php7.1-mbstring 7.1.24-1+0~20181112093455.10+stretch~1.gbp09a4fd amd64 MBSTRING module for PHP ii php7.1-mysql 7.1.24-1+0~20181112093455.10+stretch~1.gbp09a4fd amd64 MySQL module for PHP ii php7.1-opcache 7.1.24-1+0~20181112093455.10+stretch~1.gbp09a4fd amd64 Zend OpCache module for PHP ii php7.1-readline 7.1.24-1+0~20181112093455.10+stretch~1.gbp09a4fd amd64 readline module for PHP ii php7.1-sqlite3 7.1.24-1+0~20181112093455.10+stretch~1.gbp09a4fd amd64 SQLite3 module for PHP ii php7.1-xml 7.1.24-1+0~20181112093455.10+stretch~1.gbp09a4fd amd64 DOM, SimpleXML, WDDX, XML, and XSL module for PHP
所以經過幾天的測試,我們發現升級到 PHP 7.2 可以解決我們的問題。