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Re: tuntap apparently misbehaving on osx

The partial write on the tap interface shouldnt ever happen though (as each 
write is one full frame). Heading into conference, will look at this when 


On 18 Sep 2011, at 08:07, Dave Scott <Dave.Scott@xxxxxxxxxxxxx> wrote:

> I don't know if it applies to the dns stuff but to make the http server work 
> under Xen I had to add a line
> configure interface 'DHCP
> In the callback in slides/server.ml
> In the case of DHCP there were 2 other glitches which I've sent Anil some 
> pull requests for. I guess you want to set a static IP tho ( instead of the 
> ) - I'm sure I saw a config option for that in there somewhere.
> -- 
> Dave Scott
> On Sep 17, 2011, at 11:58 PM, "Richard Mortier" 
> <Richard.Mortier@xxxxxxxxxxxxxxxx> wrote:
>> i'm porting the dns perf suite over to the new regress/ setup.  with the 
>> unix-socket build, i don't seem to be able to contact it at all - and 
>> netstat doesn't show anything listening on 53/UDP as i'd expect.  with 
>> unix-direct then i see the usual startup but then start seeing many failed 
>> writes:
>> : mort@greyjay:net$; sudo _build/unix-direct/deens.bin 
>> Password:
>> Main: startup
>> [00000] 2011/08/17T22:06:39Z  info                Deens: starting server, 
>> port 53 
>> Manager: create
>> opendev: /dev/tap0
>> Netif: plug tap0
>> Manager: plug tap0
>> Manager: plug done, to listener
>> Manager: init done
>> Devices: starting provider Unix.Blkif
>> Main: entering runloop
>> ARP: who-has
>> IPv4: dropping proto 2
>> IPv4: dropping proto 2
>> IPv4: dropping proto 2
>> ARP: transmitting probe ->
>> EXN: Failure("tap: partial write")
>> ARP: updating -> 1e:81:8c:9d:18:0c
>> EXN: Failure("tap: partial write")
>> EXN: Failure("tap: partial write")
>> via "tcpdump -i tap0", pinging from a terminal gets me nothing; 
>> pinging shows echo requests from ->, and 
>> responses from -> which seems odd.
>> similar behaviour if i build the tutorial slideset with unix-direct, 
>> although with unix-socket it works just fine.
>> so- is this a broken setup on my part, or something that's become broken due 
>> to eg., new device model?  (or am i just missing something really obvious?!)
>> -- 
>> Cheers,
>> R.
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