Date: Thu, 9 Feb 2012 07:53:04 -0800 From: Qing Li <qingli@freebsd.org> To: Vlad Galu <dudu@dudu.ro>, Qing Li <qingli@freebsd.org> Cc: Steven Hartland <killing@multiplay.co.uk>, "liv3d@multiplay.co.uk" <liv3d@multiplay.co.uk>, "Alexander V. Chernikov" <melifaro@freebsd.org>, "freebsd-stable@FreeBSD.org" <freebsd-stable@freebsd.org> Subject: Re: serious packet routing issue causing ntpd high load? Message-ID: <CAGnGRdKOgzzf5aMB2ycJUM9FOZn18v5yY6OA7PzErGoauoTfog@mail.gmail.com> In-Reply-To: <CA%2BFTnKNmOEvZP0V3V4nzOdPmrO4XzJnjyPK9x1YH1q2%2B95bsjg@mail.gmail.com> References: <2740DA0E7C0F495BA00E6D4BC0FE8F37@multiplay.co.uk> <B143A8975061C446AD5E29742C53172313BC17@PWSVL-EXCMBX-01.internal.cacheflow.com> <040F9FF759DA441392432EDBD5C4D2CF@multiplay.co.uk> <4EB29A84.6070104@FreeBSD.org> <B143A8975061C446AD5E29742C531723174F0D@PWSVL-EXCMBX-01.internal.cacheflow.com> <CA%2BFTnKNmOEvZP0V3V4nzOdPmrO4XzJnjyPK9x1YH1q2%2B95bsjg@mail.gmail.com>
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Hi Vlad, Sorry about the delayed response. No, this one just fell through the cracks. Has anyone responded ? Does it still exist in 9.x ? --Qing On Mon, Feb 6, 2012 at 10:16 AM, Vlad Galu <dudu@dudu.ro> wrote: > Hi Qing, > > Any luck with this? > > Thanks > Vlad > > > On Thu, Nov 3, 2011 at 2:05 PM, Li, Qing <qing.li@bluecoat.com> wrote: >> >> This endless route lookup miss message problem is reproducible without >> FLOWTABLE. The problem is with the multiple FIBs. I cannot reproduce >> this problem in my home network but the problem is easily seen at work. >> >> The route lookup miss itself in multi-FIBs configuration may be normal >> depending on the actual system configuration. It's the flooding of >> RTM_MISS messages that is abnormal. For example, if the route to the >> DNS servers is not configured in all FIBs, then the RTM_MISS >> message will be generated when an userland application sends to an >> explicit IP address in a specific FIB. >> >> In any case, I can reproduce the issue consistently and just trying to get >> a few uninterrupted >> hours to get it done. >> >> --Qing >>
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