Re: [Cerowrt-devel] cerowrt-3.10.32-12 released

[Sebastian Moeller <moeller0@gmx.de>]

Hi Dave,

wow, after enabling NDP-Proxy 'hybrid mode' (on sw10), for the first time, my macbook got working ipv6 through cerowrt. (My setup is a bit peculiar as the primary router gets a /56 from the ISP but only hands out /64s, don't ask me why). Now I need to understand why this does not work for SW00 or SE00, but these are peanuts now :)


On Mar 21, 2014, at 18:47 , Dave Taht <dave.taht@gmail.com> wrote:

> -  currently untested (but a really small delta from -10 and -11)
> + Resync with openwrt head
> + dnsmasq 2.69rc1 (close approximation thereof)
> + This is the first release with toke's bcp38 code installed (and
> enabled by default). I am hoping people simply don't even notice it's
> there... (it's off the firewall web page)

	I did not notice this even though my primary router furnishes cerowrt with 192.168.2.104 (but no additional subnets in there), the internet works and I can reach machines in the primary subnet just fine, so nothing to see here ;) Greart work Dave and Toke. 

> 
> The only problems I foresee happening are
> 
> 1) some devices are dependent on double-nat to be configurable -
> notably most cable modems depend on 192.168.100.1 to get configured
> the first time. I thought about adding that in as a default exception,
> and still may.

	I seem to recall that there is a page in the openwrt wiki about how to enable that access, which is quite involved (for a layman), so having cerowrt solve this problem in a better fashion would be much appreciated.

> 
> 2) People using this on an interior gateway on a complex network will
> need to either disable bcp38 or (preferably) add their rfc1918
> network(s) to the exception list on the interior gateway (not on the
> external gateway). For example, the yurtlab lives on subnets
> 172.21.0.0/20.

	I guess having an easy way to set exceptions is really a good solution.

> 
> 3) I am not prescient, however, and the only way to find out what
> problems will be created is to inflict it on^H^H^H^H^H^H^H kindly ask
> the cerowrt userbase to try it.

	Tried it, seems to work.

> 
> - Jim Gettys tells me that after a day or so of heavy use of
> 3.10.32-9, the 2.4ghz radio gets thoroughly wedged after a succession
> of DMA tx errors and only a reboot can clear it.

	With 3.10.32-9 I could het the usual TX hangs on both radio0 and radio1 by running RRUL against cerowrt (on a wndr3700v2), I did not manage to actually wedge either radio so I had to reboot though.

From (on the 5GHz radio):
bash-3.2$ date ; ./netperf-wrapper --ipv4 -l 300 -H gw.home.lan rrul -p all_scaled --disable-log -t noAQM_noLLA_16M2M_hms-beagle_2_nacktmulle
Fri Mar 21 22:50:17 CET 2014

root@nacktmulle:~#dmesg
[...]
[ 3466.207031] ath: phy1: Failed to stop TX DMA, queues=0x00e!
[ 3485.308593] ath: phy1: Failed to stop TX DMA, queues=0x00e!
[ 3511.449218] ath: phy1: Failed to stop TX DMA, queues=0x00e!
[ 3513.500000] ath: phy1: Failed to stop TX DMA, queues=0x00e!
[ 3545.664062] ath: phy1: Failed to stop TX DMA, queues=0x00e!
[ 3561.769531] ath: phy1: Failed to stop TX DMA, queues=0x00e!
[ 3591.925781] ath: phy1: Failed to stop TX DMA, queues=0x00e!
[ 3615.042968] ath: phy1: Failed to stop TX DMA, queues=0x00a!
[ 3630.140625] ath: phy1: Failed to stop TX DMA, queues=0x00e!
[ 3663.308593] ath: phy1: Failed to stop TX DMA, queues=0x00e!
[ 3666.351562] ath: phy1: Failed to stop TX DMA, queues=0x00e!
[ 3688.468750] ath: phy1: Failed to stop TX DMA, queues=0x00e!
[ 3701.585937] ath: phy1: Failed to stop TX DMA, queues=0x00e!
root@nacktmulle:~# cat /sys/kernel/debug/ieee80211/phy1/ath9k/reset
    Baseband Hang:  0
Baseband Watchdog:  0
   Fatal HW Error:  0
      TX HW error:  0
     TX Path Hang: 25
      PLL RX Hang:  0
         MAC Hang:  0
     Stuck Beacon:  0
        MCI Reset:  0

But that is not any different from earlier cerowrt versions...
	

> 
> I am in the process of rebuilding the yurtlab and can get back into
> heavy wifi testing over the next week or so. In the interim,
> please beat up wifi any way you can…

	Ah, okay so now I will switch to the 2,4GHz radio to see whether I can wedge that…

best regards & many thanks
	Sebastian

> 
> I would really like to get to a stable beta release by the end of the month.
> 
> 
> 
> 
> 
> 
> -- 
> Dave Täht
> 
> Fixing bufferbloat with cerowrt: http://www.teklibre.com/cerowrt/subscribe.html
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