Development issues regarding the cerowrt test router project
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* [Cerowrt-devel] TFO crashes cerowrt 3.7.1-1
@ 2013-01-04 17:04 Dave Taht
  2013-01-04 17:27 ` Eric Dumazet
  0 siblings, 1 reply; 37+ messages in thread
From: Dave Taht @ 2013-01-04 17:04 UTC (permalink / raw)
  To: Ketan Kulkarni, Eric Dumazet; +Cc: cerowrt-devel

On Thu, Jan 3, 2013 at 8:54 AM, Ketan Kulkarni <ketkulka@gmail.com> wrote:
> Thanks Dave.
> I upgraded my 3800 to 3.7.1-1. It is working for day to day Internet activity.
>
> However, I am not able to get through even a single TCP TFO
> connection. The router restarts as soon as it sees the TFO connection.
> Looks like SYN+Data is crashing the box (see attached trace captured
> on lo iface of cero). logread, dmesg did not show anything. I don't
> know whether its kernel panic.
>
> Any pointers to debug further?
>
> This is strange as 3.6 was working for SYN+Data cases.
>
> However the difference from previous instance is the polipo server
> with TFO running on cero box.
> Client may run on same cero or on my laptop which in either case
> crashes the box.
>
> On 3.7, if I run the TFO client on cero box and TFO server on the
> laptop, it still works but not the reverse.
>
> Any thoughts?

I suspect that the new TFO code hasn't been tested much on mips. Am
glad you are doing so!

I got my replacement wndr3800s a few days ago, and will put the next
build through the TFO wringer (as well as attach a serial console).
That said, perhaps your bug report best belongs on netdev where there
are a couple people working hard on TFO and at least one has a cerowrt
capable box...

Does TFO successfully pass through the router?

>
> Thanks,
> Ketan
>
> On Wed, Jan 2, 2013 at 3:33 PM, Dave Taht <dave.taht@gmail.com> wrote:
>> Two formerly back-ordered 3800s arrived yesterday!
>>
>> They barely had time to power on before I reflashed them with:
>>
>> http://snapon.lab.bufferbloat.net/~cero2/cerowrt/wndr/3.7.1-1/
>>
>> I still regard this series as heavily development oriented and
>> unsuitable for general use. In particular I'd like to wait for dnsmasq
>> to come out of beta, fix AHCP, add a gui for the ceroshaper, etc, etc.
>>
>> But: This is the first devel release I've been able to test in the
>> real world as a default gw in a while. So far, so good.
>>
>> I have some issues with how the new network6 configuration stuff
>> interacts with ahcp, but aside from that... I saw upnp work for the
>> first time... saw the ula auto code work... analyzed some dropbox and
>> netflix traffic, ran a couple android boxes through it, fiddled with
>> nfq_codel...
>>
>> some notes:
>>
>> + resync with openwrt head
>> + update to Linux 3.7.1 with unaligned patches from robert bradley
>> + A QFQ+ update
>> + mildly improved nfq_codel
>> - Missing cups support (didn't compile
>> - no ipv6 npt yet
>>
>> Merry New Year!
>>
>> --
>> 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

^ permalink raw reply	[flat|nested] 37+ messages in thread
end of thread, other threads:[~2013-01-17  3:44 UTC | newest]

Thread overview: 37+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2013-01-04 17:04 [Cerowrt-devel] TFO crashes cerowrt 3.7.1-1 Dave Taht
2013-01-04 17:27 ` Eric Dumazet
2013-01-04 17:33   ` Dave Taht
2013-01-04 20:42     ` Maciej Soltysiak
2013-01-04 20:43       ` Maciej Soltysiak
2013-01-04 20:57         ` Jerry Chu
2013-01-04 21:21           ` Dave Taht
2013-01-04 21:36             ` Jerry Chu
2013-01-04 21:44               ` Dave Taht
2013-01-04 21:01         ` dpreed
2013-01-04 22:49           ` Robert Bradley
2013-01-04 21:11       ` Dave Taht
2013-01-04 21:19         ` Jerry Chu
2013-01-05  1:59           ` Ketan Kulkarni
2013-01-05  2:20             ` Yuchung Cheng
2013-01-05  3:02               ` Ketan Kulkarni
2013-01-05  3:16                 ` Eric Dumazet
2013-01-05  3:35                 ` Dave Taht
2013-01-05  4:05                   ` Dave Taht
2013-01-05 19:13                 ` Ketan Kulkarni
2013-01-13 17:01                   ` Ketan Kulkarni
2013-01-13 18:03                     ` Eric Dumazet
2013-01-13 21:39                       ` Felix Fietkau
2013-01-14  0:38                         ` Yuchung Cheng
2013-01-14  3:05                         ` Eric Dumazet
2013-01-14  4:07                           ` Eric Dumazet
2013-01-14  4:43                             ` Ketan Kulkarni
2013-01-14  6:14                               ` Dave Taht
2013-01-14 19:50                                 ` Dave Taht
2013-01-14  8:18                           ` Jerry Chu
2013-01-14 16:32                             ` Eric Dumazet
2013-01-04 22:25       ` Robert Bradley
2013-01-14  6:11       ` Dave Taht
2013-01-14 16:37         ` Ketan Kulkarni
2013-01-16 22:19         ` Maciej Soltysiak
2013-01-17  0:58           ` Dave Taht
2013-01-17  3:44           ` Dave Taht

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