From: tilman dot giese at gmx dot de
Operating system: Linux
PHP version: 4.3.2
PHP Bug Type: Reproducible crash
Bug description: Segmentation fault in efree
Description:
------------
I recently changed my Apache 2.0.47 to use the worker MPM instead of the
prefork MPM. I compiled PHP like described below and realized that using
phpMyAdmin very often caused my httpd to crash. A gdb backtrace shows that
a segmentation fault in _efree is the reason. Same problem with 4.3.3RC1
but as I said, I assume that changing the Apache MPM and thus compiling
PHP with thread safety is the real reason. When producing the crash only
the mysql extension is loaded.
Below is the output as generated by running 'make test':
OS:
Linux
Automake:
automake (GNU automake) 1.7.2
Written by Tom Tromey <[EMAIL PROTECTED]>.
Copyright 2002 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is
NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE.
Autoconf:
autoconf (GNU Autoconf) 2.57
Written by David J. MacKenzie and Akim Demaille.
Copyright 2002 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is
NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE.
Libtool:
ltmain.sh (GNU libtool) 1.4.3 (1.922.2.110 2002/10/23 01:39:54)
Compiler:
Reading specs from /usr/lib/gcc-lib/i586-suse-linux/3.3/specs
Configured with: ../configure --enable-threads=posix --prefix=/usr
--with-local-prefix=/usr/local --infodir=/usr/share/info
--mandir=/usr/share/man --libdir=/usr/lib
--enable-languages=c,c++,f77,objc,java,ada --disable-checking
--enable-libgcj --with-gxx-include-dir=/usr/include/g++
--with-slibdir=/lib --with-system-zlib --enable-shared
--enable-__cxa_atexit i586-suse-linux
Thread model: posix
gcc version 3.3 (SuSE Linux)
Bison:
bison (GNU Bison) 1.75
Written by Robert Corbett and Richard Stallman.
Copyright (C) 2002 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is
NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE.
Libraries:
libcrypt.so.1 => /lib/libcrypt.so.1 (0x40024000)
libnsl.so.1 => /lib/libnsl.so.1 (0x40055000)
libpam.so.0 => /lib/libpam.so.0 (0x4006a000)
libz.so.1 => /lib/libz.so.1 (0x40072000)
libssl.so.0.9.6 => /usr/lib/libssl.so.0.9.6 (0x40082000)
libcrypto.so.0.9.6 => /usr/lib/libcrypto.so.0.9.6 (0x400b2000)
libresolv.so.2 => /lib/libresolv.so.2 (0x40189000)
libm.so.6 => /lib/libm.so.6 (0x4019b000)
libdl.so.2 => /lib/libdl.so.2 (0x401bd000)
libpthread.so.0 => /lib/libpthread.so.0 (0x401c0000)
libc.so.6 => /lib/libc.so.6 (0x40211000)
/lib/ld-linux.so.2 => /lib/ld-linux.so.2 (0x40000000)
================================================================================
PHPINFO
================================================================================
phpinfo()
PHP Version => 4.3.2
System => Linux nefertari 2.4.21-4-athlon #1 Fri Jul 4 11:17:40 UTC 2003
i686
Build Date => Jul 22 2003 12:26:03
Configure Command => './configure' '--prefix=/usr'
'--mandir=/usr/share/man' '--with-apxs2' '--with-config-file-path=/etc'
'--without-pear' '--enable-bcmath' '--enable-calendar'
'--enable-dba=shared' '--enable-dbase' '--enable-dbx' '--enable-dio'
'--enable-exif' '--enable-filepro' '--enable-ftp' '--enable-gd-native-ttf'
'--enable-gd-jis-conv' '--enable-magic-quotes' '--enable-mbregex'
'--enable-mbstring' '--enable-shmop' '--enable-sigchild'
'--enable-sockets' '--enable-sysvmsg' '--enable-sysvsem'
'--enable-sysvshm' '--enable-ucd-snmp-hack' '--enable-wddx'
'--enable-xslt=shared' '--enable-yp' '--enable-zend-multibyte'
'--with-bz2=shared' '--with-curl=shared' '--with-cyrus=shared'
'--with-db4' '--with-dbm' '--with-dom=shared' '--with-dom-xslt'
'--with-dom-exslt' '--with-flatfile' '--with-freetype-dir=/usr'
'--with-fribidi=shared' '--with-gdbm' '--with-gd=shared'
'--with-gettext=shared' '--with-gmp=shared' '--with-gnu-ld'
'--with-hyperwave' '--with-iconv=shared' '--with-imap=shared'
'--with-imap-ssl' '--with-java=shared' '--with-ldap=shared'
'--with-mcal=shared,/usr' '--with-mcrypt=shared' '--with-mhash=shared'
'--with-mime-magic' '--with-mysql=shared,/usr' '--with-ncurses=shared'
'--with-ndbm' '--with-openssl' '--with-pgsql=shared' '--with-pic'
'--with-qtdom=shared,/usr/lib/qt3' '--with-readline=shared'
'--with-recode=shared' '--with-snmp=shared' '--with-t1lib' '--with-ttf'
'--with-unixODBC=shared' '--with-xslt-sablot' '--with-zlib'
Server API => Command Line Interface
Virtual Directory Support => enabled
Configuration File (php.ini) Path => /etc/php.ini
PHP API => 20020918
PHP Extension => 20020429
Zend Extension => 20021010
Debug Build => no
Thread Safety => enabled
Registered PHP Streams => php, http, ftp, https, ftps, compress.zlib
Reproduce code:
---------------
I do not really know how to reproduce the segmentation fault but it occurs
very often (but not always) when using phpMyAdmin which is up to now the
only thing I am using. But I can provide further information on what can
exactly cause the crash if you are interested.
Expected result:
----------------
Apache starts another (and maybe another) process (thread?) and one of
this processes (threads?) does do not get a segmentation fault and
responses.
--
Edit bug report at http://bugs.php.net/?id=24792&edit=1
--
Try a CVS snapshot (php4): http://bugs.php.net/fix.php?id=24792&r=trysnapshot4
Try a CVS snapshot (php5): http://bugs.php.net/fix.php?id=24792&r=trysnapshot5
Fixed in CVS: http://bugs.php.net/fix.php?id=24792&r=fixedcvs
Fixed in release: http://bugs.php.net/fix.php?id=24792&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=24792&r=needtrace
Try newer version: http://bugs.php.net/fix.php?id=24792&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=24792&r=support
Expected behavior: http://bugs.php.net/fix.php?id=24792&r=notwrong
Not enough info: http://bugs.php.net/fix.php?id=24792&r=notenoughinfo
Submitted twice: http://bugs.php.net/fix.php?id=24792&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=24792&r=globals
PHP 3 support discontinued: http://bugs.php.net/fix.php?id=24792&r=php3
Daylight Savings: http://bugs.php.net/fix.php?id=24792&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=24792&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=24792&r=gnused
