Date: Tue, 30 Sep 2014 10:56:49 -0700 From: Rumen Telbizov <telbizov@gmail.com> To: "Alexander V. Chernikov" <melifaro@freebsd.org> Cc: "freebsd-stable@freebsd.org" <freebsd-stable@freebsd.org> Subject: Re: 10.1-BETA2 possible kernel memory leak in routing table Message-ID: <CAENR%2B_XX4jnD6SBi8S1dGfWM68tmcm0aE2iMVA3LDR3R8ygQYw@mail.gmail.com> In-Reply-To: <542AE376.6000003@FreeBSD.org> References: <CAENR%2B_UVLDDrsef2W4CXCFX65EYaxeKN4MNWbgoyaZ5qDGe1Pg@mail.gmail.com> <542AAA3C.1080803@ipfw.ru> <CAENR%2B_X5KTdeb00f9NShN1YK%2BT2aY1vG5YcTCgu4aXZO=%2Bpa=g@mail.gmail.com> <542AE376.6000003@FreeBSD.org>
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Hi Alexander, > Sorry. That meant to be "route -Arn". > It would be even better if you show something like > "route -Arn ; sleep 10; route -Arn" > > OK I would assume you really meant netstat ;) I apologize for not pasting the entire routing table (security considerations). If you're only after the size of it - like I said it's pretty static and doesn't change very often. Is there anything specific that you're after?: netstat -rna | wc -l ; sleep 10; netstat -rna | wc -l 145 145 If you do need something specific from it I'll spend some time to anonymize it later. > Ok. Are there any (relevant) messages floating inside route socket? > e.g does "route -n monitor" shows a lot of output? > time route -n monitor real 13m15.960s user 0m0.000s sys 0m0.002s No output. No changes whatsoever! dmesg doesn't report anything either. > Very strange. Do you have "normal" ipv4/ipv6 traffic? (e.g. not tunneled, > not ipsec, not all-fragmented, etc?) > ixgbe marks all packets by received queue id number, and queue 0 is always > selected for "corner case" traffic. > I see more or less equal traffic distribution in you original post, so > this looks very strange for me. > Most of it should be pretty standard. Very few fragments and some ipsec (not terminated on the firewall). Again without this option - nothing goes over ix1 for some reason. > Can you show "sysctl dev.ix" output? (and any ixgbe tunables set if any)? > I do have 3 settings that I changed via loader.conf as reported in the original email. Please find the full output of loader.conf, sysctl.conf as well as sysctl hw.ix and sysctl dev.ix at http://pastebin.com/M5Stnfvt Thank you for your help. Regards, -- Rumen Telbizov Unix Systems Administrator <http://telbizov.com>
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