Resource unavailable

[Chris Stone]

Still having problems  with MailScanner under Darwin (OSX). I am now
running in foreground debug mode and it seems that the problem is shown as
always the same thing:

Starting MailScanner...
MailScanner 4.34.8 starting in foreground mode - pid is [7426]
About to fork child #1 of 5...
Cannot fork off child process, Resource temporarily unavailable
at /opt/MailScanner/bin/MailScanner line 313.
g5:~ root# ./check_mailscanner
Starting MailScanner...
MailScanner 4.34.8 starting in foreground mode - pid is [7444]
About to fork child #1 of 5...
Cannot fork off child process, Resource temporarily unavailable
at /opt/MailScanner/bin/MailScanner line 313.
g5:~ root# ./check_mailscanner
Starting MailScanner...
MailScanner 4.34.8 starting in foreground mode - pid is [7463]
About to fork child #1 of 5...
Cannot fork off child process, Resource temporarily unavailable
at /opt/MailScanner/bin/MailScanner line 313.
g5:~ root# ./check_mailscanner
Starting MailScanner...
MailScanner 4.34.8 starting in foreground mode - pid is [7481]
About to fork child #1 of 5...
Cannot fork off child process, Resource temporarily unavailable
at /opt/MailScanner/bin/MailScanner line 313.
g5:~ root# ./check_mailscanner
Starting MailScanner...
MailScanner 4.34.8 starting in foreground mode - pid is [7499]
About to fork child #1 of 5...
Cannot fork off child process, Resource temporarily unavailable
at /opt/MailScanner/bin/MailScanner line 313.
g5:~ root# ./check_mailscanner
Starting MailScanner...
MailScanner 4.34.8 starting in foreground mode - pid is [7518]
About to fork child #1 of 5...
Cannot fork off child process, Resource temporarily unavailable
at /opt/MailScanner/bin/MailScanner line 313.
g5:~ root# ./check_mailscanner
Starting MailScanner...
MailScanner 4.34.8 starting in foreground mode - pid is [7536]
About to fork child #1 of 5...
Cannot fork off child process, Resource temporarily unavailable
at /opt/MailScanner/bin/MailScanner line 313.

Any ideas as to what might be causing this and how to resolve it? The
system is a dual processor with 2 gig RAM. I tried uping the ulimit
setting in check_mailscanner from the distribution setting of 2000 to 5000
but that seems to have had no effect.

Trying to start MailScanner will give the errors above for a while and
then start up ok. Then it'll run for a bit and die with another error like:

Can't fork: Resource temporarily unavailable
at /opt/MailScanner/lib/MailScanner/RBLs.pm line 121.
Can't fork: Resource temporarily unavailable
at /opt/MailScanner/lib/MailScanner/RBLs.pm line 121.
Can't fork: Resource temporarily unavailable
at /opt/MailScanner/lib/MailScanner/RBLs.pm line 121.

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