Re: [Cerowrt-devel] Will there ever be a stable version of cerowrt?

[Dave Taht <dave.taht@gmail.com>]

On Fri, Feb 7, 2014 at 1:37 PM, Sebastian Moeller <moeller0@gmx.de> wrote:
> Hi Dave,
>
>
> On Feb 7, 2014, at 18:57 , Dave Taht <dave.taht@gmail.com> wrote:
>
>> On Fri, Feb 7, 2014 at 12:01 PM, Stephen Hemminger
>> <stephen@networkplumber.org> wrote:
>>> Any progress on getting a stable version? Recent versions seem to be targeted
>>> at IPv6 and other things which do not impact me for home use. What does matter
>>> is fixing the wireless hanging issue on 2.4Ghz.
>>
>> Do I detect a plainative note? I share it...
>>
>> I'm not aware of any problems on 2.4ghz in the last specific release I
>> did for comcast. It's been in day-to-day use here since I put it out.
>>
>> http://snapon.lab.bufferbloat.net/~cero2/cerowrt/wndr/comcast/3.10.28-4/
>>
>> Feel free to give it a shot. The stuff that made it comcast specific
>> (co-existence with  HE tunnels) is solved, so the next gen will be
>> generic.
>>
>> I AM painfully aware that ht40+ at 5ghz appears to have broken on
>> several channels (Seems to work on 36 and fail on 44) There was a
>> fresh merge from wireless-testing recently, that I hope fixes it.
>
>         With ht40+ on 44 I get MCS index 7 with transmigrate 150 reported on my macbook, that according to the table in http://en.wikipedia.org/wiki/IEEE_802.11n-2009 means 40MHz channel, with netperf-wrapper I get an accumulate of ~100Mbits/s (which actually sounds too good to be true I would have expected 75 tops, but with the macbook hogging all tops, there seems to be less wasted airtime for direction changes). So at least with country code GE channel 44 is capable of operating in ht40+ mode.

What release exactly? I confess to have merely seen the bug on a release
or two back.

You should get MCS15, btw.

>> There is still one unaligned_instruction trap left to beat that
>> appears to be triggered by odhcpd.
>>
>> root@comcast-gw:~# cat /sys/kernel/debug/mips/unaligned_instructions
>> 18000
>
>         So with my non-working IP6 on 3.10.28-1, I get:
> root@nacktmulle:~# cat /sys/kernel/debug/mips/unaligned_instructions
> 0
> root@nacktmulle:~# uptime
>  19:35:13 up 11 days, 22:46,  load average: 0.09, 0.43, 1.06

No, not fixed, it's triggered by ipv6 traffic.

>
> so most of the traps seem fixed!
>
>
>>
>> One of the things that scares me is that a bunch of openwrt targets
>> are migrating to 3.13 and if I miss a window  the very stable 3.10.28
>> release is going to get replaced upstream with 3.13 and resultant
>> headaches. (and benefits)
>
>         Do yu know what their plan is? Put out a stable version an maintain that or switch to a rolling release cycle?

I have had few detailed conversations with the #openwrt-devel folk of
late. I have been ignoring irc in favor of doing work.

There is a ton of good stuff landing in openwrt, let me forward
something in a second...

>
>
> Best Regards & many Thanks for doing all this
>         Sebastian
>
>>
>> As my own deadlines slip everywhere, I made a big push earlier this
>> week to appeal to many folk to get dnsmasq + dnssec more widely tested
>> on other platforms in the hope that whenever I got unburied it would
>> be stable enough to toss into cero.  (that's going along swimmingly on
>> x86 and arm so far)
>>
>> I hope to replace the failed server this tonight and burn sunday on
>> trying to resolve the problems above. The currently borked srcs are on
>> github.
>>
>>
>> --
>> 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