100% CPU usage

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Hit an issue with my pfsense box yesterday - Internet kept dropping out, and I couldn't login to the GUI (although the login page came up, it wouldn't validate my creds).

Finally managed to get logged in and the dashboard was showing 100% CPU usage (screenshot attached).

Also managed to get the output form top, which showed this:

Shell Output - top -aSH
last pid: 87769; load averages: 170.62, 170.23, 170.79 up 40+08:23:44 21:25:44
547 processes: 180 running, 303 sleeping, 64 waiting

Mem: 675M Active, 2582M Inact, 1137M Wired, 939M Buf, 11G Free
Swap: 32G Total, 32G Free

PID USERNAME PRI NICE SIZE RES STATE C TIME WCPU COMMAND
87012 root 73 0 224M 37280K RUN 1 189:31 5.76% /usr/local/bin/php /usr/local/www/pfblockerng/pfblockerng.php cron
7762 root 73 0 224M 37284K RUN 1 108:00 5.27% /usr/local/bin/php /usr/local/www/pfblockerng/pfblockerng.php cron
34304 root 73 0 224M 37268K RUN 5 318:10 5.18% /usr/local/bin/php /usr/local/www/pfblockerng/pfblockerng.php cron
36863 root 73 0 224M 37280K RUN 0 158:10 5.18% /usr/local/bin/php /usr/local/www/pfblockerng/pfblockerng.php cron
64162 root 73 0 224M 37284K RUN 6 121:34 5.18% /usr/local/bin/php /usr/local/www/pfblockerng/pfblockerng.php cron
63510 root 73 0 224M 37292K RUN 7 38:15 5.18% /usr/local/bin/php /usr/local/www/pfblockerng/pfblockerng.php cron
58174 root 73 0 224M 37296K RUN 7 26:40 5.18% /usr/local/bin/php /usr/local/www/pfblockerng/pfblockerng.php cron
21896 root 73 0 224M 37240K RUN 3 870:40 5.08% /usr/local/bin/php /usr/local/www/pfblockerng/pfblockerng.php cron
75984 root 73 0 224M 37256K RUN 0 495:54 5.08% /usr/local/bin/php /usr/local/www/pfblockerng/pfblockerng.php cron
30019 root 73 0 224M 37276K RUN 0 231:38 5.08% /usr/local/bin/php /usr/local/www/pfblockerng/pfblockerng.php cron
9242 root 73 0 224M 37256K RUN 5 511:35 4.98% /usr/local/bin/php /usr/local/www/pfblockerng/pfblockerng.php cron
61771 root 73 0 229M 39068K RUN 1 362:28 4.98% /usr/local/bin/php /usr/local/www/pfblockerng/pfblockerng.php cron{php}
52244 root 73 0 224M 37264K RUN 3 323:45 4.98% /usr/local/bin/php /usr/local/www/pfblockerng/pfblockerng.php cron
24209 root 73 0 224M 37292K CPU1 1 50:05 4.98% /usr/local/bin/php /usr/local/www/pfblockerng/pfblockerng.php cron
67805 root 73 0 228M 38924K RUN 2 23.3H 4.88% /usr/local/bin/php /usr/local/www/pfblockerng/pfblockerng.php cron{php}
64711 root 73 0 224M 37240K RUN 0 889:48 4.88% /usr/local/bin/php /usr/local/www/pfblockerng/pfblockerng.php cron
64465 root 73 0 224M 37248K RUN 7 669:02 4.88% /usr/local/bin/php /usr/local/www/pfblockerng/pfblockerng.php cron
15032 root 73 0 224M 37256K RUN 1 480:37 4.88% /usr/local/bin/php /usr/local/www/pfblockerng/pfblockerng.php cron

Rebooted the box and all okay now. Had a look through the logs but couldn't see anything particularly relevant.

Any ideas on config to check to prevent this from re-occurring ?

Thanks.

pfsense-100.png_thumb

BBcan177

See the following:
https://forum.pfsense.org/index.php?topic=102470.msg671811#msg671811

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@BBcan177:

See the following:
https://forum.pfsense.org/index.php?topic=102470.msg671811#msg671811

Will give it a go, thanks.