Bug #71374 [Opn->Nab]: PHP-FPM crashes repeatedly in call to _php_iconv_strlen

Edit report at https://bugs.php.net/bug.php?id=71374&edit=1 ID: 71374 Updated by: dmitry@php.net Reported by: mqudsi at neosmart dot net Summary: PHP-FPM crashes repeatedly in call to _php_iconv_strlen -Status: Open +Status: Not a bug Type: Bug Package: Reproducible crash Operating System: FreeBSD-10.2-RELEASE PHP Version: 7.0.2 Block user comment: N Private report: N New Comment: This looks like not a PHP bug. Previous Comments: ------------------------------------------------------------------------ [2016-01-14 22:06:24] mqudsi at neosmart dot net Re-compiling against a locally-compiled version of GNU libiconv instead of using the system bsdiconv has resolved the issue. I don't know what the recommendation is here, in this case. ------------------------------------------------------------------------ [2016-01-14 21:48:37] mqudsi at neosmart dot net Description: ------------ I have a (currently) locally-reproducible crash that I haven't yet isolated out to a minimal test case which causes PHP-FPM to crash with a SIGBUS error in the log: WARNING: [pool www] child 8278 exited on signal 10 (SIGBUS) after 46.230505 seconds from start The backtrace from an attached GDB session: Switching to Thread 805006400 (LWP 100703)] 0x00000000007c99dc in ZEND_INIT_FCALL_SPEC_CONST_HANDLER () (gdb) continue Continuing. Program received signal SIGBUS, Bus error. 0x00000008029f1bf1 in __bsd_iconv () from /lib/libc.so.7 (gdb) bt #0 0x00000008029f1bf1 in __bsd_iconv () from /lib/libc.so.7 #1 0x00000000005867d8 in _php_iconv_strlen () #2 0x0000000000584204 in zif_iconv_strlen () #3 0x00000000007ea1d7 in ZEND_DO_ICALL_SPEC_HANDLER () #4 0x00000000007b5448 in execute_ex () #5 0x0000000000766cf8 in zend_call_function () #6 0x0000000000766536 in call_user_function_ex () #7 0x00000000005148a1 in php_pcre_replace_impl () #8 0x00000000005173ff in php_replace_in_subject () #9 0x00000000005171cc in preg_replace_impl () #10 0x0000000000516530 in zif_preg_replace_callback () #11 0x00000000007ea1d7 in ZEND_DO_ICALL_SPEC_HANDLER () #12 0x00000000007b5448 in execute_ex () #13 0x00000000007b5686 in zend_execute () #14 0x000000000077590f in zend_execute_scripts () #15 0x000000000070d8dc in php_execute_script () #16 0x000000000080f9a9 in main () PHP 7.0.2 has been compiled from source: './configure' '--with-curl' '--with-zlib=/usr/local' '--enable-shmop' '--enable-sockets' '--enable-sysvsem' '--enable-sysvshm' '--enable-mbstring' '--with-iconv' '--with-mysqli=mysqlnd' '--with-pdo-mysql=mysqlnd' '--with-config-file-scan-dir=/usr/local/lsws/lsphp7/conf.d/' '--with-openssl' '--with-gd' '--with-litespeed' '--enable-fpm' '--with-fpm-user=www-data' '--with-fpm-group=www-data' '--prefix=/usr/local/php7' '--with-config-file-scan-dir=/usr/local/php7/etc/conf.d' '--with-mysql-sock=/var/run/mysqld/mysqld.sock' '--without-pdo-sqlite' '--enable-opcache' '-C' '--without-sqlite3' 'CFLAGS=-msse4.2 '-Wno-error' '-Ofast' '-funroll-loops' '-march=native' '-DOPENSSL_NO_SSL2'' The only external extension installed is php-memcached from HEAD (which makes no appearance in the bt). ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=71374&edit=1