HOWTO: Debian FD_SETSIZE Problem

[Peter2]

Hi,
this thread maybe help other to fix there problems.

According to:
http://kb.swsoft.com/article_41_260_en.html
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=330105
and this in apache error-log:
[notice] child pid 29022 exit signal Segmentation fault (11)

i could fix it the Apacheproblem on my Debian-servers.

Maybe these steps help others to fix the problem on their Debian boxes too?:

Make all changes in /etc/sysctl.conf how is it decribed on (http://kb.swsoft.com/article_41_260_en.html) and then:

# download and build .debs
apt-get install libtool libpcre3-dev libldap2-dev libc6-dev libc6
apt-get source apache2
cd apache2-2.0.54
dpkg-buildpackage -uc -us
cd ../

# test
dpkg -i --simulate apache2-common_2.0.54-5_i386.deb apache2-mpm-prefork_2.0.54-5_i386.deb  apache2-utils_2.0.54-5_i386.deb apache2_2.0.54-5_i386.deb libapr0_2.0.54-5_i386.deb

# install
dpkg -i apache2-common_2.0.54-5_i386.deb apache2-mpm-prefork_2.0.54-5_i386.deb  apache2-utils_2.0.54-5_i386.deb apache2_2.0.54-5_i386.deb libapr0_2.0.54-5_i386.deb

# Install suexec and restart Apache
cp /opt/psa/suexec/psa-suexec2 /usr/lib/apache2/suexec2
/etc/init.d/apache2 restart

Do not install any -dev, gcc or g++ on servers!

Feedback welcome.

Gruss,
PP

 

[Peter2]

Hi,
okay you must also recompile php:

# download and build .debs
apt-get source libapache2-mod-php4
cd php4-4.3.10
#(can happen that you must install for this additional packages!)
dpkg-buildpackage -uc -us

cd ../
dpkg -i --simulate php4-curl_4.3.10-15_i386.deb php4-mcal_4.3.10-15_i386.deb php4-recode_4.3.10-15_i386.deb libapache2-mod-php4_4.3.10-15_i386.deb php4-domxml_4.3.10-15_i386.deb php4-mhash_4.3.10-15_i386.deb php4-snmp_4.3.10-15_i386.deb php4-cgi_4.3.10-15_i386.deb php4-gd_4.3.10-15_i386.deb php4-mysql_4.3.10-15_i386.deb php4-sybase_4.3.10-15_i386.deb php4-cli_4.3.10-15_i386.deb php4-imap_4.3.10-15_i386.deb php4-odbc_4.3.10-15_i386.deb php4-xslt_4.3.10-15_i386.deb php4-common_4.3.10-15_i386.deb php4-ldap_4.3.10-15_i386.deb php4-pear_4.3.10-15_all.deb php4_4.3.10-15_all.deb

dpkg -i php4-curl_4.3.10-15_i386.deb php4-mcal_4.3.10-15_i386.deb php4-recode_4.3.10-15_i386.deb libapache2-mod-php4_4.3.10-15_i386.deb php4-domxml_4.3.10-15_i386.deb php4-mhash_4.3.10-15_i386.deb php4-snmp_4.3.10-15_i386.deb php4-cgi_4.3.10-15_i386.deb php4-gd_4.3.10-15_i386.deb php4-mysql_4.3.10-15_i386.deb php4-sybase_4.3.10-15_i386.deb php4-cli_4.3.10-15_i386.deb php4-imap_4.3.10-15_i386.deb php4-odbc_4.3.10-15_i386.deb php4-xslt_4.3.10-15_i386.deb php4-common_4.3.10-15_i386.deb php4-ldap_4.3.10-15_i386.deb php4-pear_4.3.10-15_all.deb php4_4.3.10-15_all.deb

 

[iDamir]

It's better to get required packages for building by

apt-get build-dep package_for_building

for example

apt-get build-dep apache2

 

[iDamir]

Also I recommend increasing revision number and making some comments about changing by

dch -i

for assurance that the package won't be reinstalled from Debian repository if somebody makes

apt-get update
apt-get upgrade

 

[Peter2]

Originally posted by Peter2

apt-get source libapache2-mod-php4
...
cd php4-4.3.10
....
dpkg-buildpackage -uc -us

cd ../

To made the same faster and easier with less commands:

apt-get install apt-src
apt-src --build install apache2 php4 php4-mcrypt php4-rrdtool php4-imagick php4-imap php4-pgsql php4-ps php4-xslt

apt-src should also download all additional needed .debs.