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>
next in thread | previous in thread | raw e-mail | index | archive | help
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>;
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?CAENR%2B_XX4jnD6SBi8S1dGfWM68tmcm0aE2iMVA3LDR3R8ygQYw>