If you see the following in apache error log,
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[Wed Dec 29 13:11:34 2010] [error] [client 94.132.92.237] eAccelerator: shmmax should be at least 2MB
[Wed Dec 29 13:11:34 2010] [error] [client 94.132.92.237] Premature end of script headers: announce.php
[Wed Dec 29 13:11:34 2010] [error] [client 94.132.92.237] File does not exist: /home/user/public_html/500.shtml
you will think that this is due to shmmax directicve error, and execute the folliwng command.
sysctl -a | grep shmmax
cat /proc/sys/kernel/shmmax
But actually if the website goes doe due to this, please uninstall eaccelerator php module and try.
/scripts/phpextensionmgr uninstall EAccelerator(to uninstall eaccelerator module )
Check and see that website loads fine
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[Wed Dec 29 13:11:34 2010] [error] [client 94.132.92.237] eAccelerator: shmmax should be at least 2MB
[Wed Dec 29 13:11:34 2010] [error] [client 94.132.92.237] Premature end of script headers: announce.php
[Wed Dec 29 13:11:34 2010] [error] [client 94.132.92.237] File does not exist: /home/user/public_html/500.shtml
you will think that this is due to shmmax directicve error, and execute the folliwng command.
sysctl -a | grep shmmax
cat /proc/sys/kernel/shmmax
But actually if the website goes doe due to this, please uninstall eaccelerator php module and try.
/scripts/phpextensionmgr uninstall EAccelerator(to uninstall eaccelerator module )
Check and see that website loads fine