From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-ie0-f181.google.com (mail-ie0-f181.google.com [209.85.223.181]) (using TLSv1 with cipher RC4-SHA (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority" (verified OK)) by huchra.bufferbloat.net (Postfix) with ESMTPS id C27A721F1F2 for ; Wed, 16 Jan 2013 16:58:51 -0800 (PST) Received: by mail-ie0-f181.google.com with SMTP id 16so3761361iea.40 for ; Wed, 16 Jan 2013 16:58:51 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:x-received:in-reply-to:references:date:message-id :subject:from:to:cc:content-type; bh=ypBNN/22RqXvpdN7A1DuzCGq13O1jzSt7v700g9Gydc=; b=q8CtvaCf1nAPdaQJJUNG+wXQ6lRhzPGfvQCZTq9HgFSqVlejrGm1zQKxsSf46Wwed+ M8MdZPW0P+8ggYBfo+MV54B53jKibJwHNO6UHE3WLrtFVqd+N+CoLRUMJ/S0bb3o3ps8 nG1iEU8JRqyfpu+xvy05Zs0yYq5wXUt4dbW0mOcNewqOmf1JNjp49jJ7Pw14sUYYvemI znnVa1FiUWh4UeZV7SCI3v/wFY6mDlfROiVXihJ0FC9qcE80DsQR1Hu5LUlOob4dC1SY dUtRnJngy7bebHdJ1/2kXQKODiiymFCGEqrXJPOevwGTI2+8mueRWp/ddZdng14PBOd1 V66Q== MIME-Version: 1.0 X-Received: by 10.50.187.225 with SMTP id fv1mr6391325igc.96.1358384331107; Wed, 16 Jan 2013 16:58:51 -0800 (PST) Received: by 10.64.135.39 with HTTP; Wed, 16 Jan 2013 16:58:50 -0800 (PST) In-Reply-To: References: Date: Wed, 16 Jan 2013 19:58:50 -0500 Message-ID: From: Dave Taht To: Maciej Soltysiak Content-Type: multipart/alternative; boundary=14dae9340fe1862c5704d3717f50 Cc: cerowrt-devel@lists.bufferbloat.net Subject: Re: [Cerowrt-devel] TFO crashes cerowrt 3.7.1-1 X-BeenThere: cerowrt-devel@lists.bufferbloat.net X-Mailman-Version: 2.1.13 Precedence: list List-Id: Development issues regarding the cerowrt test router project List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 17 Jan 2013 00:58:52 -0000 --14dae9340fe1862c5704d3717f50 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Sounds like a bingo to me. On Wed, Jan 16, 2013 at 5:19 PM, Maciej Soltysiak wro= te: > On Mon, Jan 14, 2013 at 7:11 AM, Dave Taht wrote: > >> The routing cache got eliminated between 3.3 and 3.6, and there were >> all sorts of changes to it over the last 6 releases that have been >> bothersome. > > Ok, you might be onto something. It got eliminated in 3.6.x; So I checked > a few things with a cero-3.7.2-3 here: > > # ip maddr show | grep 224 > shows nothing (only ipv6 addresses show up for maddr) > > Trying to start pimd shows: > pimd: 23:16:52.675 Cannot set PIM flag in kernel:(error 99): Protocol not > available > > There is no /proc/net/igmp, but only /proc/net/igmp6 > > Could this be Dave M's patch to remove routing cache or are we having > .CONFIG misconfig? > You get a gold star! Somewhere in between 3.3.x and 3.7.x I managed to lose PIMV1 and PIMV2 support in the kernel configuration, and also lost the NO_HZ and faster clock I'd had there too. CONFIG_NO_HZ=3Dy CONFIG_HZ=3D256 CONFIG_HZ_256=3Dy As well as the other TCP variants like VENO and LP (I think, I might have added them elsewhere) Checking into that latter bit as well as into the unaligned traps tonight (unless someone beats me to it) > Regards, > Maciej > > >> > > >> or perhaps I did something stupid regarding igmp. (is it even on?) >> >> > I'm starting not to question why it doesn't work, I'm starting to >> wonder why >> > it did work then ;-) >> > Regards, >> > Maciej >> > On Fri, Jan 4, 2013 at 6:33 PM, Dave Taht wrote: >> >> >> >> On Fri, Jan 4, 2013 at 9:27 AM, Eric Dumazet >> wrote: >> >> > Sorry, could you give us a copy of the panic stack trace ? >> >> >> >> I will get a serial console up on a wndr3800 by sunday. (sorry, just >> >> landed in california, am in disarray) >> >> >> >> The latest dev build of cero for the wndr3800 and wndr3700v2 is at: >> >> >> >> http://snapon.lab.bufferbloat.net/~cero2/cerowrt/wndr/3.7.1-1/ >> >> >> >> -- >> >> Dave T=E4ht >> >> >> >> Fixing bufferbloat with cerowrt: >> >> http://www.teklibre.com/cerowrt/subscribe.html >> >> _______________________________________________ >> >> Cerowrt-devel mailing list >> >> Cerowrt-devel@lists.bufferbloat.net >> >> https://lists.bufferbloat.net/listinfo/cerowrt-devel >> > >> > >> >> >> >> -- >> Dave T=E4ht >> >> Fixing bufferbloat with cerowrt: >> http://www.teklibre.com/cerowrt/subscribe.html >> > > --=20 Dave T=E4ht Fixing bufferbloat with cerowrt: http://www.teklibre.com/cerowrt/subscribe.html --14dae9340fe1862c5704d3717f50 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Sounds like a bingo to me.

On Wed, Jan 16= , 2013 at 5:19 PM, Maciej Soltysiak <maciej@soltysiak.com> wrote:
On Mon, Jan = 14, 2013 at 7:11 AM, Dave Taht <dave.taht@gmail.com> wrote= :
The routing cache got eliminated between 3.3 and 3.6, and there were
all sorts of changes to it over the last 6 releases that have been
bothersome.
Ok, you might be onto something. It got = eliminated in 3.6.x; So I checked a few things with a cero-3.7.2-3 here:
=A0
#=A0ip maddr show | grep 224
shows nothing = (only ipv6 addresses show up for maddr)
=A0
Trying to start pimd shows:
pimd: 23:16:52.675= Cannot set PIM flag in kernel:(error 99): Protocol not available
=A0
There is no /proc/net/igmp, but only /proc/net/igmp6
=A0
Could this be Dave M's patch to remove routing cache or a= re we having .CONFIG misconfig?

You get a = gold star!

Somewhere in between 3.3.x and 3.7.x I managed to lose P= IMV1 and PIMV2 support
in the kernel configuration, and also lost the NO_HZ and faster clock I'= ;d had there too.

CONFIG_NO_HZ=3Dy
CONFIG_HZ=3D256
CONFIG_HZ_2= 56=3Dy

As well as the other TCP variants like VENO and LP (I think, = I might have added them elsewhere)

Checking into that latter bit as well as into the unaligned traps tonig= ht (unless someone beats me to it)
=A0
Regards,
Maciej
= =A0
=A0

or perhaps I did something stupid regarding igmp. (is it even on?)

> I'm starting not to question why it doesn't work, I'm star= ting to wonder why
> it did work then ;-)
> Regards,
> Maciej
> On Fri, Jan 4, 2013 at 6:33 PM, Dave Taht <dave.taht@gmail.com> wrote:
>>
>> On Fri, Jan 4, 2013 at 9:27 AM, Eric Dumazet <edumazet@google.com> wrote:<= br> >> > Sorry, could you give us a copy of the panic stack trace ? >>
>> I will get a serial console up on a wndr3800 by sunday. (sorry, ju= st
>> landed in california, am in disarray)
>>
>> The latest dev build of cero for the wndr3800 and wndr3700v2 is at= :
>>
>> http://snapon.lab.bufferbloat.net/~cero2/cerowrt= /wndr/3.7.1-1/
>>
>> --
>> Dave T=E4ht
>>
>> Fixing bufferbloat with cerowrt:
>> http://www.teklibre.com/cerowrt/subscribe.html
>> _______________________________________________
>> Cerowrt-devel mailing list
>> Cerowrt-devel@lists.bufferbloat.net
>> https://lists.bufferbloat.net/listinfo/cerowrt-devel >
>



--
Dave T=E4ht

Fixing bufferbloat with cerowrt: http://www.teklibre.com/cerowrt/subscrib= e.html




--
Dave T=E4ht

Fixi= ng bufferbloat with cerowrt: http://www.teklibre.com/cerowrt/subscribe.ht= ml=20 --14dae9340fe1862c5704d3717f50--