On 6. Jul 2012, at 05:53 , Mikolaj Golub wrote:

> 
> On Thu, 5 Jul 2012 20:21:53 +0000 Bjoern A. Zeeb wrote:
> 
> BAZ> On 5. Jul 2012, at 19:53 , Mikolaj Golub wrote:
> 
>>> 
>>> On Thu, 05 Jul 2012 12:18:20 -0700 Xin Li wrote:
>>> 
>>> XL> Hi, Mikolaj,
>>> 
>>> XL> On 07/04/12 00:00, Mikolaj Golub wrote:
>>>>> Is this observed after destroying epair? There is an issue with
>>>>> epair: on destroy, when epair_clone_destroy() calls
>>>>> ether_ifdetach() for its second half it does not switch to its vnet
>>>>> and if_detach_internal() can't find the interface and just returns.
>>>>> As a result V_ifnet list is left with dead reference.
>>> 
>>> XL> Yes.
>>> 
>>>>> http://lists.freebsd.org/pipermail/freebsd-virtualization/2011-January/000628.html
>>>>> 
>>>>> Here is an updated patch against CURRENT:
>>>>> 
>>>>> http://people.freebsd.org/~trociny/if_epair.c.epair_clone_destroy.1.patch
>>> 
>>> XL> Your
>>>>> 
>>> XL> patch did fixed the problem, thanks!  Are you going to commit it
>>> XL> against -HEAD and then MFC after a while?
>>> 
>>> I would like Bjoern review it before me committing, or at least tell he does
>>> not mind, if he does not have time to review -)
> 
> BAZ> To me the patch looks wrong; I am wondering if someone broke some other 
> central
> BAZ> assumptions but given I cannot currently spend time on this and if it 
> fixes things
> BAZ> feel free to go ahead.
> 
> If you told what looks wrong I could try to dig at that direction and might be
> back with a better solution, instead of committing a presumably wrong fix.

sorry;  vnet.c:vnet_destroy() should dtrt already wrt to interfaces moving to 
parents
and being detached.

/bz

-- 
Bjoern A. Zeeb                                 You have to have visions!
   It does not matter how good you are. It matters what good you do!

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