Re: [Qemu-devel] [PATCH] tap: set IFF_ONE_QUEUE per default

[Peter Lieven]

Am 15.02.2013 um 10:16 schrieb Stefan Hajnoczi <address@hidden>:

> On Fri, Feb 15, 2013 at 09:27:18AM +0100, Peter Lieven wrote:
>> historically the kernel queues packets two times. once
>> at the device and second in qdisc. this is believed to cause
>> interface stalls if one of these queues overruns.
>> 
>> setting IFF_ONE_QUEUE is the default in kernels >= 3.8. the
>> flag is ignored since then. see kernel commit
>> 5d097109257c03a71845729f8db6b5770c4bbedc
>> 
>> Signed-off-by: Peter Lieven <address@hidden>
>> ---
>> net/tap-linux.c |    2 +-
>> 1 file changed, 1 insertion(+), 1 deletion(-)
> 
> Reviewed-by: Stefan Hajnoczi <address@hidden>

it seems that IFF_ONE_QUEUE is not defined in qemu headers. i will sent an 
update.

sorry,
peter