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

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Message-ID: <517baa2a-2c42-7790-e225-02d22c5ed90b@huawei.com>
Date:   Mon, 18 Nov 2019 11:15:38 +0800
From:   "wangxiaogang (F)" <wangxiaogang3@...wei.com>
To:     David Ahern <dsahern@...il.com>, <dsahern@...nel.org>,
        <shrijeet@...il.com>, <davem@...emloft.net>
CC:     <netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <hujunwei4@...wei.com>, <xuhanbing@...wei.com>
Subject: Re: [PATCH] vrf: Fix possible NULL pointer oops when delete nic



On 2019/11/15 21:14, David Ahern wrote:
> On 11/14/19 11:22 PM, wangxiaogang (F) wrote:
>> From: XiaoGang Wang <wangxiaogang3@...wei.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.