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Subject: Re: [PATCH] vrf: Fix possible NULL pointer oops when delete nic
To:     David Ahern <dsahern@gmail.com>, <dsahern@kernel.org>,
        <shrijeet@gmail.com>, <davem@davemloft.net>
CC:     <netdev@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
        <hujunwei4@huawei.com>, <xuhanbing@huawei.com>
References: <60e827cb-2bba-2b7e-55dc-651103e9905f@huawei.com>
 <fde95f03-72ee-b4e9-7f14-b98e3227f0f4@gmail.com>
From:   "wangxiaogang (F)" <wangxiaogang3@huawei.com>
Message-ID: <517baa2a-2c42-7790-e225-02d22c5ed90b@huawei.com>
Date:   Mon, 18 Nov 2019 11:15:38 +0800
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On 2019/11/15 21:14, David Ahern wrote:
> On 11/14/19 11:22 PM, wangxiaogang (F) wrote:
>> From: XiaoGang Wang <wangxiaogang3@huawei.com>
>>
>> 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.