Re: kern/46199: 6.0_BETA. "qemu -net tap" + bridge(4). Network problems in guests.

[Aleksey Cheusov <cheusov%tut.by@localhost>]

On Thu, Mar 15, 2012 at 6:00 PM, Manuel Bouyer 
<bouyer%antioche.eu.org@localhost> wrote:
> On Thu, Mar 15, 2012 at 12:55:02PM +0000, Aleksey Cheusov wrote:
>>  I'm not sure I understood your question. But Opkts sremains the same,
>>  a number of drops increased significantly, Ipkts increased a little bit.
>>
>>  tap3  1500  <Link>        f2:0b:a4:c7:dd:00     1124     0    28722
>>   0     0 201213
>>  tap3  1500  fe80::/64     fe80::f00b:a4ff:f     1124     0    28722
>>   0     0 201213
>
> BTW, could you see if the affected tap device has OACTIVE flag set when
> in this state ?

Yes, OACTIVE flag is set on "dead" tap3.

Also, I've got an idea that my ipf rules may cause this problem.
When I disabled them I could not reproduce the problem,
at least two virtual machines worked for a day without problems.
I'm not sure this is relevant, though.