From: aguilr at alum dot rpi dot edu
Operating system: Debian GNU/Linux 3.0r2
PHP version: 4.3.4
PHP Bug Type: MySQL related
Bug description: mysql_connect() segfaults php/apache
Description:
------------
Hello,
I've been working on this problem for about four days and haven't been
able to find a bug report or newsgroup post describing how to fix it.
Basically, things compile and install fine, but as soon as mysql_connect()
is run, PHP segfaults.
I also had to add --disable-pear in my configure line because "make
install" would segfault when running install-pear-installer.
Here's my configure line:
APP_LOCATION=/opt/apps
APP_PATH=${APP_LOCATION}/php/4.3.4
HTTPD_LOCATION=${APP_LOCATION}/httpd/2.0.48
./configure --prefix=${APP_PATH} --disable-static
--with-mysql=${APP_LOCATION}/mysql/4.0.17
--with-mysql-sock=/var/run/mysqld/mysqld.sock
--with-apxs2=${HTTPD_LOCATION}/bin/apxs --with-gd --with-jpeg-dir
--with-png-dir --with-freetype-dir --with-tiff-dir --with-zlib-dir
--with-expat-dir=${APP_LOCATION}/expat/1.95.7
--with-xslt-sablot=${APP_LOCATION}/sablotron/1.0.1 --enable-xslt=shared
--enable-track-vars --with-gettext --with-curl=${APP_LOCATION}/curl/7.10.8
--with-xml --with-dom --with-iconv-dir=${APP_LOCATION}/libiconv/1.9.1
--with-iconv=${APP_LOCATION}/libiconv/1.9.1
--with-db4=${APP_LOCATION}/db/4.0.14 --disable-pear --enable-debug
Apache2 works great on its own and MySQL is accepting connections from
another PHP installation jsut fine. Any help would be *much*
appreciated!
Reproduce code:
---------------
<?php
$conn = mysql_connect("localhost", "username", "password");
print "I will not reach this line <br />";
mysql_select_db("nh", $conn);
$res = mysql_query("SELECT username FROM depalma_user");
while($row = mysql_fetch_array($res)) {
print row['username'] . "<br />";
}
?>
Expected result:
----------------
user1
user2
user3
[...]
Actual result:
--------------
Here's a gdb backtrace:
#0 0x00000000 in ?? ()
#1 0x40553928 in _nss_db_getspnam_r () from /lib/libnss_db.so.2
#2 0x405539e0 in _nss_db_getspnam_r () from /lib/libnss_db.so.2
#3 0x4055311e in _nss_db_endservent () from /lib/libnss_db.so.2
#4 0x405533b3 in _nss_db_getservbyname_r () from /lib/libnss_db.so.2
#5 0x40513a83 in getservbyname_r () from /lib/libc.so.6
#6 0x40513931 in getservbyname () from /lib/libc.so.6
#7 0x4007426d in mysql_once_init () from
/opt/apps/mysql/4.0.17/lib/mysql/libmysqlclient.so.12
#8 0x40076a80 in mysql_init () from
/opt/apps/mysql/4.0.17/lib/mysql/libmysqlclient.so.12
#9 0x080b4d36 in ?? ()
#10 0x080b5055 in ?? ()
#11 0x081a3bb2 in ?? ()
#12 0x08190834 in ?? ()
#13 0x08154e3c in ?? ()
#14 0x081aa977 in ?? ()
#15 0x4044c14f in __libc_start_main () from /lib/libc.so.6
An strace reveals:
# strace -p 16389
[...]
close(9) =
0open("/opt/apps/httpd/2.0.48/lib/libdb3.so.3", O_RDONLY) = -1 ENOENT (No
such file or directory)open("/opt/apps/db/4.0.14/lib/libdb3.so.3",
O_RDONLY) = -1 ENOENT (No such file or
directory)open("/opt/apps/httpd/2.0.48/lib/libdb3.so.3", O_RDONLY) = -1
ENOENT (No such file or directory)open("i686/mmx/libdb3.so.3", O_RDONLY)
= -1 ENOENT (No such file or directory)open("i686/libdb3.so.3", O_RDONLY)
= -1 ENOENT (No such file or directory)open("mmx/libdb3.so.3",
O_RDONLY) = -1 ENOENT (No such file or directory)open("libdb3.so.3",
O_RDONLY) = -1 ENOENT (No such file or
directory)open("/usr/lib/libdb3.so.3", O_RDONLY) = 9read(9,
"\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0p\311\0"..., 1024) =
1024fstat64(9, {st_mode=S_IFREG|0644, st_size=684092, ...}) =
0old_mmap(NULL, 687628, PROT_READ|PROT_EXEC, MAP_PRIVATE, 9, 0) =
0x40832000mprotect(0x408d9000, 3596, PROT_NONE) = 0old_mmap(0x408d9000,
4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED, 9, 0xa6000) =
0x408d9000close(9) = 0munmap(0x40651000,
32390) = 0--- SIGSEGV (Segmentation fault) ---
--
Edit bug report at http://bugs.php.net/?id=26929&edit=1
--
Try a CVS snapshot (php4): http://bugs.php.net/fix.php?id=26929&r=trysnapshot4
Try a CVS snapshot (php5): http://bugs.php.net/fix.php?id=26929&r=trysnapshot5
Fixed in CVS: http://bugs.php.net/fix.php?id=26929&r=fixedcvs
Fixed in release: http://bugs.php.net/fix.php?id=26929&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=26929&r=needtrace
Need Reproduce Script: http://bugs.php.net/fix.php?id=26929&r=needscript
Try newer version: http://bugs.php.net/fix.php?id=26929&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=26929&r=support
Expected behavior: http://bugs.php.net/fix.php?id=26929&r=notwrong
Not enough info: http://bugs.php.net/fix.php?id=26929&r=notenoughinfo
Submitted twice: http://bugs.php.net/fix.php?id=26929&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=26929&r=globals
PHP 3 support discontinued: http://bugs.php.net/fix.php?id=26929&r=php3
Daylight Savings: http://bugs.php.net/fix.php?id=26929&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=26929&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=26929&r=gnused
Floating point limitations: http://bugs.php.net/fix.php?id=26929&r=float
