netdev - Re: [PATCH net-next] net: dsa: make user ports return to init

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Date:   Mon, 26 Sep 2022 18:40:15 +0000
From:   patchwork-bot+netdevbpf@...nel.org
To:     Vladimir Oltean <vladimir.oltean@....com>
Cc:     netdev@...r.kernel.org, andrew@...n.ch, vivien.didelot@...il.com,
        f.fainelli@...il.com, olteanv@...il.com, davem@...emloft.net,
        edumazet@...gle.com, kuba@...nel.org, pabeni@...hat.com
Subject: Re: [PATCH net-next] net: dsa: make user ports return to init_net on
 netns deletion

Hello:

This patch was applied to netdev/net-next.git (master)
by Jakub Kicinski <kuba@...nel.org>:

On Wed, 21 Sep 2022 21:54:28 +0300 you wrote:
> As pointed out during review, currently the following set of commands
> crashes the kernel:
> 
> $ ip netns add ns0
> $ ip link set swp0 netns ns0
> $ ip netns del ns0
> WARNING: CPU: 1 PID: 27 at net/core/dev.c:10884 unregister_netdevice_many+0xaa4/0xaec
> Workqueue: netns cleanup_net
> pstate: 20000005 (nzCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
> pc : unregister_netdevice_many+0xaa4/0xaec
> lr : unregister_netdevice_many+0x700/0xaec
> Call trace:
>  unregister_netdevice_many+0xaa4/0xaec
>  default_device_exit_batch+0x294/0x340
>  ops_exit_list+0xac/0xc4
>  cleanup_net+0x2e4/0x544
>  process_one_work+0x4ec/0xb40
> 
> [...]

Here is the summary with links:
  - [net-next] net: dsa: make user ports return to init_net on netns deletion
    https://git.kernel.org/netdev/net-next/c/56378f3ccb83

You are awesome, thank you!
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