Date: Thu, 17 Feb 2005 16:56:09 +0300 From: Gleb Smirnoff <glebius@freebsd.org> To: current@freebsd.org Subject: changing debuglevel of kernel messaging going to console Message-ID: <20050217135609.GA97455@cell.sick.ru>
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Dear collegues, now all kernel messages are printed to system console by default: *.err;kern.debug;auth.notice;mail.crit /dev/console There is a problem that in case of a serial console, this printing is very slow and heavily pessimizes box performance, when kernel messages are printed at high speed. Moreover, several kernel messages with LOG_DEBUG severity can be triggered remotely, for example sending bogus ARP replies. So, sending bogus ARP packets to a FreeBSD box with serial console may lead to a DoS like conditions. I'd like to raise this level to kern.warning, so that important messages are still printed, but debug messages won't flood console. No logging will be lost, since next line logs kern.debug to /var/log/messages. -- Totus tuus, Glebius. GLEBIUS-RIPN GLEB-RIPE
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