linux-kernel - Re: [PATCH net] ice: Fix race condition during interface enslave

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Message-Id: <164695501044.21304.15926630200023275833.git-patchwork-notify@kernel.org>
Date:   Thu, 10 Mar 2022 23:30:10 +0000
From:   patchwork-bot+netdevbpf@...nel.org
To:     Ivan Vecera <ivecera@...hat.com>
Cc:     netdev@...r.kernel.org, poros@...hat.com,
        jesse.brandeburg@...el.com, anthony.l.nguyen@...el.com,
        davem@...emloft.net, kuba@...nel.org,
        intel-wired-lan@...ts.osuosl.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH net] ice: Fix race condition during interface enslave

Hello:

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

On Thu, 10 Mar 2022 18:16:41 +0100 you wrote:
> Commit 5dbbbd01cbba83 ("ice: Avoid RTNL lock when re-creating
> auxiliary device") changes a process of re-creation of aux device
> so ice_plug_aux_dev() is called from ice_service_task() context.
> This unfortunately opens a race window that can result in dead-lock
> when interface has left LAG and immediately enters LAG again.
> 
> Reproducer:
> ```
> #!/bin/sh
> 
> [...]

Here is the summary with links:
  - [net] ice: Fix race condition during interface enslave
    https://git.kernel.org/netdev/net/c/5cb1ebdbc434

You are awesome, thank you!
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