ID: 26929 User updated by: aguilr at alum dot rpi dot edu Reported By: aguilr at alum dot rpi dot edu Status: Bogus Bug Type: MySQL related Operating System: Debian GNU/Linux 3.0r2 PHP Version: 4.3.4 New Comment:
Looks like this is, indeed, a debian issue. I was able to work around the problem by modifying my /etc/nsswitch.conf file so that bdb isn't accessed when looking for whatever was being queried on the machine. For example, the line: hosts: db files dns was changed to: hosts: files dns That fixed the problem. Thanks for the help! Previous Comments: ------------------------------------------------------------------------ [2004-01-22 22:17:34] aguilr at alum dot rpi dot edu I added a comment to the mysql bug database a few days ago, but have not heard back. As a suggestion from that bug report, I upgraded to Debian/Sarge, which still exhibits the same segfault. >From the strace and the gdb backtrace, I'm guessing it has something to do with: /usr/lib/libdb3.so.3 or /lib/libnss_db.so.2 Or, more likely, a db conflict since it seems that db2 and db3 are being used. Any clues would be great! Thanks. ------------------------------------------------------------------------ [2004-01-16 06:07:48] [EMAIL PROTECTED] It's not a php (and probably not a mysql) bug. Please read http://bugs.mysql.com/bug.php?id=1338 and test it with official mysql binaries (if the problem still exists reopen #1338 on bugs.mysql.com) ------------------------------------------------------------------------ [2004-01-16 04:23:14] aguilr at alum dot rpi dot edu 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 this bug report at http://bugs.php.net/?id=26929&edit=1
