Date: Wed, 8 Feb 2012 10:50:11 GMT From: Dmitrij Tejblum <tejblum@yandex-team.ru> To: freebsd-net@FreeBSD.org Subject: Re: kern/161899: [route] ntpd(8): Repeating RTM_MISS packets causing high CPU load for ntpd Message-ID: <201202081050.q18AoBwY042112@freefall.freebsd.org>
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The following reply was made to PR kern/161899; it has been noted by GNATS. From: Dmitrij Tejblum <tejblum@yandex-team.ru> To: bug-followup@freebsd.org Cc: Subject: Re: kern/161899: [route] ntpd(8): Repeating RTM_MISS packets causing high CPU load for ntpd Date: Wed, 08 Feb 2012 14:30:51 +0400 I would suggest to remove RTM_MISS messages at all. I believe that there is no sofware that actually use it. OTOH, in some cases RTM_MISS messages are really disturbing. E.g., a router without default route (e.g. runnung BGP) will always generate some amount of RTM_MISS messages. They have no use, but require daemons to parse them, and could result in overflow on routing socket queue and, in turn, cause some important routing messages to be dropped. I have a patch that add a sysctl to turn off RTM_MISS messages, but since no one use them, it would be easier to just remove them entirely. -- Dmitry
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