Bug #61306 [NEW]: Segfault at end of request

From: Operating system: Gentoo Linux PHP version: 5.4.0 Package: Apache2 related Bug Type: Bug Bug description:Segfault at end of request Description: ------------ Since PHP 5.4 RC5 (RC4 still works fine) and including the release, PHP is segfaulting on a few but not all requests, seemingly after the PHP script is executed but before it is sent to the browser. PHP 5.4.0--pl0-gentoo (cli) (built: Mar 6 2012 14:18:01) (DEBUG) Apache 2.2.21 (debug, mpm worker) zlib 1.2.5 Linux lws3 2.6.39-gentoo-r3 #1 SMP Tue Oct 4 18:09:16 EDT 2011 x86_64 Intel(R) Xeon(R) CPU E5645 @ 2.40GHz GenuineIntel GNU/Linux zlib.output_compression = Off php-config Usage: /usr/bin/php-config [OPTION] Options: --prefix [/usr/lib64/php5.4] --includes [-I/usr/lib64/php5.4/include/php -I/usr/lib64/php5.4/include/php/main -I/usr/lib64/php5.4/include/php/TSRM -I/usr/lib64/php5.4/include/php/Zend -I/usr/lib64/php5.4/include/php/ext -I/usr/lib64/php5.4/include/php/ext/date/lib] --ldflags [] --libs [-lcrypt -lc-client -lz -ltidy -lresolv -lcrypt -lreadline -lncurses -lmcrypt -lltdl -lonig -lcrypt -lpam -lt1 -lfreetype -lpng -lz -ljpeg -lgdbm -lcurl -lbz2 -lz -lpcre -lrt -lm -ldl -lnsl -lxml2 -lz -lm -lssl -lcrypto -lcurl -lrt -lz -lgnutls -lxml2 -lz -lm -lssl -lcrypto -lssl -lcrypto -lxml2 -lz -lm -lnetsnmp -lcrypt -lxml2 -lz -lm -lxml2 -lz -lm -lxml2 -lz -lm -lxml2 -lz -lm -lcrypt ] --extension-dir [/usr/lib64/php5.4/lib/extensions/debug-zts-20100525] --include-dir [/usr/lib64/php5.4/include/php] --man-dir [/usr/lib64/php5.4/man] --php-binary [/usr/lib64/php5.4/bin/php] --php-sapis [cli apache2handler] --configure-options [--prefix=/usr --build=x86_64-pc-linux-gnu --host=x86_64-pc-linux-gnu --mandir=/usr/share/man --infodir=/usr/share/info --datadir=/usr/share --sysconfdir=/etc --localstatedir=/var/lib --prefix=/usr/lib64/php5.4 --mandir=/usr/lib64/php5.4/man --infodir=/usr/lib64/php5.4/info --libdir=/usr/lib64/php5.4/lib --with-libdir=lib64 --without-pear --enable-maintainer-zts --disable-bcmath --with-bz2 --disable-calendar --enable-ctype --with-curl --without-curlwrappers --enable-dom --without-enchant --disable-exif --enable-fileinfo --enable-filter --enable-ftp --with-gettext --without-gmp --enable-hash --without-mhash --with-iconv --disable-intl --enable-ipv6 --enable-json --without-kerberos --enable-libxml --enable-mbstring --with-mcrypt --without-mssql --with-onig=/usr --with-openssl --with-openssl-dir=/usr --disable-pcntl --enable-phar --disable-pdo --without-pgsql --enable-posix --without-pspell --without-recode --enable-simplexml --disable-shmop --with-snmp --disable-soap --disable-sockets --without-sqlite3 --without-sybase-ct --disable-sysvmsg --disable-sysvsem --disable-sysvshm --with-tidy --enable-tokenizer --disable-wddx --enable-xml --enable-xmlreader --enable-xmlwriter --with-xmlrpc --without-xsl --enable-zip --with-zlib --enable-debug --enable-dba --without-cdb --without-db4 --disable-flatfile --with-gdbm --disable-inifile --without-qdbm --with-freetype-dir=/usr --with-t1lib=/usr --disable-gd-jis-conv --with-jpeg-dir=/usr --with-png-dir=/usr --without-xpm-dir --with-gd --with-imap --with-imap-ssl --with-mysql=mysqlnd --with-mysql-sock=/var/run/mysqld/mysqld.sock --with-mysqli=mysqlnd --with-readline --without-libedit --without-mm --with-pcre-regex=/usr --with-pcre-dir=/usr --with-config-file-path=/etc/php/cli-php5.4 --with-config-file-scan-dir=/etc/php/cli-php5.4/ext-active --disable-embed --enable-cli --disable-cgi --disable-fpm --without-apxs2] --version [5.4.0--pl0-gentoo] --vernum [50400] Test script: --------------- apache2 -f /etc/apache2/httpd.conf -k start -X test.php: <?php phpinfo(); (open a few simultaneous requests to it) 10x http://localhost/test.php Expected result: ---------------- Get consistent phpinfo() output every time Actual result: -------------- Most requests work, but a few come up blank because of a segfault httpd-error.log: ,.. [Tue Mar 06 13:37:42 2012] [notice] child pid 7091 exit signal Segmentation fault (11) ... backtrace: #0 0x00007ffff4130cd7 in deflateEnd (strm=0x5a5a5a5a5a5a5a5a) at deflate.c:900 #1 0x00007ffff1373d3a in php_zlib_cleanup_ob_gzhandler_mess (tsrm_ls=0x23ca570) at /usr/src/debug/dev-lang/php-5.4.0/sapis-build/apache2/ext/zlib/zlib.c:434 #2 0x00007ffff13759d9 in zm_deactivate_zlib (type=1, module_number=6, tsrm_ls=0x23ca570) at /usr/src/debug/dev-lang/php-5.4.0/sapis-build/apache2/ext/zlib/zlib.c:972 #3 0x00007ffff17c232b in zend_deactivate_modules (tsrm_ls=0x23ca570) at /usr/src/debug/dev-lang/php-5.4.0/sapis-build/apache2/Zend/zend_API.c:2325 #4 0x00007ffff16f7d59 in php_request_shutdown (dummy=0x0) at /usr/src/debug/dev-lang/php-5.4.0/sapis-build/apache2/main/main.c:1755 #5 0x00007ffff193e583 in php_apache_request_dtor (r=0x191d43a0, tsrm_ls=0x23ca570) at /usr/src/debug/dev-lang/php-5.4.0/sapis-build/apache2/sapi/apache2handler/sapi_apache2.c:507 #6 0x00007ffff193f01c in php_handler (r=0x191d43a0) at /usr/src/debug/dev-lang/php-5.4.0/sapis-build/apache2/sapi/apache2handler/sapi_apache2.c:679 #7 0x0000000000440e45 in ap_run_handler (r=0x191d43a0) at config.c:158 #8 0x0000000000441736 in ap_invoke_handler (r=0x191d43a0) at config.c:376 #9 0x00000000004523ab in ap_process_request (r=0x191d43a0) at http_request.c:282 #10 0x000000000044f2a3 in ap_process_http_connection (c=0x49ffa98) at http_core.c:190 #11 0x000000000044a5ea in ap_run_process_connection (c=0x49ffa98) at connection.c:43 #12 0x000000000044aa85 in ap_process_connection (c=0x49ffa98, csd=0x49ff880) at connection.c:190 #13 0x00000000004593b7 in process_socket (p=0x49ff808, sock=0x49ff880, my_child_num=0, my_thread_num=19, bucket_alloc=0x23c1068) at worker.c:544 #14 0x0000000000459d29 in worker_thread (thd=0xe0ecb0, dummy=0x2273880) at worker.c:894 #15 0x00007ffff680fc6c in start_thread () from /lib64/libpthread.so.0 #16 0x00007ffff63524bd in clone () from /lib64/libc.so.6 (I've seen other values for strm besides 0x5a5a5a5a5a5a5a5a) -- Edit bug report at https://bugs.php.net/bug.php?id=61306&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=61306&r=trysnapshot54 Try a snapshot (PHP 5.3): https://bugs.php.net/fix.php?id=61306&r=trysnapshot53 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=61306&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=61306&r=fixed Fixed in SVN and need be documented: https://bugs.php.net/fix.php?id=61306&r=needdocs Fixed in release: https://bugs.php.net/fix.php?id=61306&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=61306&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=61306&r=needscript Try newer version: https://bugs.php.net/fix.php?id=61306&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=61306&r=support Expected behavior: https://bugs.php.net/fix.php?id=61306&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=61306&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=61306&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=61306&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=61306&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=61306&r=dst IIS Stability: https://bugs.php.net/fix.php?id=61306&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=61306&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=61306&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=61306&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=61306&r=mysqlcfg