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SubjectRe: [PATCH] vrf: Fix possible NULL pointer oops when delete nic
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From: "wangxiaogang (F)" <wangxiaogang3@huawei.com>
Date: Fri, 15 Nov 2019 14:22:56 +0800

> 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.
>
> [166603.826737]hinic 0000:43:00.4 eth-s3: Failed to cycle device eth-s3;
> route tables might be wrong!
> .....
> [166603.828018]WARNING: CPU: 135 PID: 15382at net/core/dev.c:6875
> __netdev_adjacent_dev_remove.constprop.40+0x1e0/0x1e8
> ......

Taehee-ssi, please take a look at this.

It is believed that this may be caused by the adjacency fixes you made
recently.

Thank you.

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