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:

# 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=y
CONFIG_HZ=256
CONFIG_HZ_256=y

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 <dave.taht@gmail.com> wrote:
>>
>> On Fri, Jan 4, 2013 at 9:27 AM, Eric Dumazet <edumazet@google.com> 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 Täht
>>
>> 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 Täht

Fixing bufferbloat with cerowrt: http://www.teklibre.com/cerowrt/subscribe.html