Date: Wed, 02 Jun 2010 11:51:26 +0800 From: "Chao Shin" <quakelee@geekcn.org> To: "freebsd-stable@freebsd.org" <freebsd-stable@freebsd.org> Cc: "freebsd-net@freebsd.org" <freebsd-net@freebsd.org> Subject: Re: panic: rtqkill route really not free on freebsd 8.0-release Message-ID: <op.vdnmbxmjhnq548@quakelee-work> In-Reply-To: <op.vden20hmhnq548@quakelee-work> References: <op.vden20hmhnq548@quakelee-work>
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I worte: > Hi all, > > I have four heavy load mysql database servers which system is 8.0-release > got "panic: rtqkill route really not free" this week. We have a gateway > set up by OpenBSD have a icmp route redirect function between two > subnets, > I suspect the FreeBSD panic at trying to delete routes sent from that > gateway. > > So I set sysctl net.inet.icmp.drop_redirect=1, no more panic in past 24 > hours. > I guess maybe miss some locks or wrong delete route path in 8.0-release. > > Did any one meet this problem before? > After four days research we think the problem is between function in_matroute and in_rtqkill. This two functions' conflicted at processing RTPRF_OURS flag routes. In my opinion, it is a design problem, so I have no idea about how to resolve it. The simple way I think is change the panic assert in in_rtqkill, treat it as a normal state not assert a panic. -- The Power to Serve
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