Subject: Re: [PATCH v2 net-next 15/16] bridge: use exit_batch_rtnl() method

From: Jakub Kicinski <[email-masked]>
Date: Sat, 3 Feb 2024 21:10:52 -0800

On Fri,  2 Feb 2024 17:40:00 +0000 Eric Dumazet wrote:
> exit_batch_rtnl() is called while RTNL is held,
> and devices to be unregistered can be queued in the dev_kill_list.
> 
> This saves one rtnl_lock()/rtnl_unlock() pair per netns
> and one unregister_netdevice_many() call.

This one appears to cause a lot of crashes in the selftests:

https://netdev.bots.linux.dev/contest.html?branch=net-next-2024-02-03--21-00&pw-n=0&pass=0

Example crash:

https://netdev-2.bots.linux.dev/vmksft-bonding/results/449900/vm-crash-thr0-2
-- 
pw-bot: cr