Date: Tue, 28 Feb 2012 22:56:24 +0100 From: =?ISO-8859-2?Q?=A3ukasz_W=B1sikowski?= <lukasz@wasikowski.net> To: Arnaud Lacombe <lacombar@gmail.com> Cc: "Bjoern A. Zeeb" <bzeeb-lists@lists.zabbadoz.net>, stable@freebsd.org, current@freebsd.org, Alexander Leidinger <Alexander@leidinger.net> Subject: Re: [CFT] modular kernel config Message-ID: <4F4D4D88.8040500@wasikowski.net> In-Reply-To: <CACqU3MV5OjCj%2BpVh1_nKe8OKb7NrNZm0oNY4pLgWur%2Bt1nqXOQ@mail.gmail.com> References: <20120221143537.Horde.deyFDZjmRSRPQ52pxBIpnLA@webmail.leidinger.net> <BA7FFA2D-DEE6-4FB7-AE26-0BC79CBFD8C0@lists.zabbadoz.net> <4F4BA707.5070608@wasikowski.net> <CACqU3MVkD2%2BqVk9MOjU24tRY-j2CAhOv7AUbuACZYEww0Ve33A@mail.gmail.com> <4F4D3476.7070803@wasikowski.net> <CACqU3MV5OjCj%2BpVh1_nKe8OKb7NrNZm0oNY4pLgWur%2Bt1nqXOQ@mail.gmail.com>
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W dniu 2012-02-28 22:22, Arnaud Lacombe pisze: >>>> FLOWTABLE on 8.x crashed BGP routers (kern/144917). >>>> >>> no crash dump, no backtrace, no follow-up whatsoever after 1 year and >>> 2 years, what's your points ? You could really have chosen a better PR >>> to back up your argument... >> >> Sorry, but I don't want to bug trace this issue, simply because lack of >> time, resources and interest in this feature. I've run into this bug on >> production box, went through hell because of it and turned off flowtable >> which I do not use and not need. If this problem is still alive (it >> might be, the PR I've mentioned is still open) then it's not a good idea >> to turn on this feature by default. If you're interested in using this >> feature then feel free to debug and test. >> > Give me a deterministic way to reproduce the issue and I will. Enable FLOWTABLES in kernel and setup BGP4+ router (with net/quagga). You need three peers sending you full Internet routing table (3x400k prefixes). Some people got it with only two peers. After a short while your CPU should stuck in 100% busy. -- best regards, Lukasz Wasikowski
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