Re: [PATCH] vrf: Fix possible NULL pointer oops when delete nic

From: David Ahern
Date: Sun Nov 17 2019 - 22:22:52 EST


On 11/17/19 8:15 PM, wangxiaogang (F) wrote:
>
>
> On 2019/11/15 21:14, David Ahern wrote:
>> On 11/14/19 11:22 PM, wangxiaogang (F) wrote:
>>> From: XiaoGang Wang <wangxiaogang3@xxxxxxxxxx>
>>>
>>> Recently we get a crash when access illegal address (0xc0),
>>> which will occasionally appear when deleting a physical NIC with vrf.
>>>
>>
>> How long have you been running this test?
>>
>> I am wondering if this is fallout from the recent adjacency changes in
>> commits 5343da4c1742 through f3b0a18bb6cb.
>>
>>
>>
>>
>>
> Thank you so much for the reply, our kernel version is linux 4.19.
> this problem happened once in our production environment.
>

ok, so the recent adjacency changes would not be at fault here.