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Subject: System Crash (freebsd+clamscan) !
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Hi,
I'm running qmail+qmail-scanner+clamscan on freebsd 4.9. The system is P-IV 
with 1 GB of RAM and 1 GB Swap.
My system crashed twice with the following message in my syslog.

Dec 21 11:19:19 qmail-scanner /kernel: pid 57024 (clamscan), uid 1009, was 
killed: out of swap space
Dec 21 11:19:23 qmail-scanner last message repeated 6 times
Dec 21 11:20:14 qmail-scanner /kernel: swap_pager_getswapspace: failed
Dec 21 11:20:16 qmail-scanner last message repeated 516 times
Dec 21 11:20:16 qmail-scanner /kernel: pid 57204 (clamscan), uid 1009, was 
killed: out of swap space

I know the system had worked under heavy loads but the last time it crashed 
during off hours (ie. smtp connection was quite low compared to peak hours). 
I guess the problem occured due to some malformed attachments but I'm not 
sure. Did anyone ran through this problem before? 
Below I've included my qmail, sysctl and loader.conf settings.

This is how is run qmil-smtpd /var/qmail/supervise/qmail-smtpd/run:
#!/bin/sh
QMAILDUID=`id -u qmaild`
NOFILESGID=`id -g qmaild`
MAXSMTPD=500
LOCAL=`head -1 /var/qmail/control/me`

exec /usr/local/bin/softlimit -m 50000000 \
    /usr/local/bin/tcpserver -v -R -l "$LOCAL" -x /etc/tcp.smtp.cdb -c 
"$MAXSMTPD" \
        -u "$QMAILDUID" -g "$NOFILESGID" 0 smtp /var/qmail/bin/qmail-smtpd 
2>&1

qmail-scanner# cat /etc/tcp.smtp
127.:allow,RELAYCLIENT="",QMAILQUEUE="/var/qmail/bin/qmail-scanner-queue.pl"
202.79.32.:allow,RELAYCLIENT="",QMAILQUEUE="/var/qmail/bin/qmail-scanner-queue.pl"
202.79.36.:allow,RELAYCLIENT="",QMAILQUEUE="/var/qmail/bin/qmail-scanner-queue.pl"

sysctl settings
kern.maxfilesperproc=8192
kern.ipc.somaxconn=8192
kern.maxfiles=65536
kern.maxprocperuid=8192

and boot/loader.conf
kern.ipc.nmbclusters="16384"