From: Simon Horman <horms@kernel.org>
To: Breno Leitao <leitao@debian.org>
Cc: Andrew Lunn <andrew+netdev@lunn.ch>,
"David S. Miller" <davem@davemloft.net>,
Eric Dumazet <edumazet@google.com>,
Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
Shuah Khan <shuah@kernel.org>,
david decotigny <decot@googlers.com>,
linux-kernel@vger.kernel.org, netdev@vger.kernel.org,
linux-kselftest@vger.kernel.org, asantostc@gmail.com,
efault@gmx.de, calvin@wbinvd.org, kernel-team@meta.com,
stable@vger.kernel.org
Subject: Re: [PATCH net v3 3/3] selftest: netcons: create a torture test
Date: Mon, 8 Sep 2025 11:13:53 +0100 [thread overview]
Message-ID: <20250908101353.GC2015@horms.kernel.org> (raw)
In-Reply-To: <20250905-netconsole_torture-v3-3-875c7febd316@debian.org>
On Fri, Sep 05, 2025 at 10:25:09AM -0700, Breno Leitao wrote:
> Create a netconsole test that puts a lot of pressure on the netconsole
> list manipulation. Do it by creating dynamic targets and deleting
> targets while messages are being sent. Also put interface down while the
> messages are being sent, as creating parallel targets.
>
> The code launches three background jobs on distinct schedules:
>
> * Toggle netcons target every 30 iterations
> * create and delete random_target every 50 iterations
> * toggle iface every 70 iterations
>
> This creates multiple concurrency sources that interact with netconsole
> states. This is good practice to simulate stress, and exercise netpoll
> and netconsole locks.
>
> This test already found an issue as reported in [1]
>
> Link: https://lore.kernel.org/all/20250901-netpoll_memleak-v1-1-34a181977dfc@debian.org/ [1]
> Signed-off-by: Breno Leitao <leitao@debian.org>
> Reviewed-by: Andre Carvalho <asantostc@gmail.com>
Reviewed-by: Simon Horman <horms@kernel.org>
prev parent reply other threads:[~2025-09-08 10:13 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-09-05 17:25 [PATCH net v3 0/3] net: netpoll: fix a memleak and create a selftest Breno Leitao
2025-09-05 17:25 ` [PATCH net v3 1/3] netpoll: fix incorrect refcount handling causing incorrect cleanup Breno Leitao
2025-09-08 10:12 ` Simon Horman
2025-09-08 20:47 ` Calvin Owens
2025-09-09 1:29 ` Jakub Kicinski
2025-09-09 20:17 ` Breno Leitao
2025-09-09 23:16 ` Jakub Kicinski
2025-09-10 14:12 ` Breno Leitao
2025-09-10 17:58 ` Jakub Kicinski
2025-09-10 18:50 ` Breno Leitao
2025-09-10 0:18 ` Jay Vosburgh
2025-09-10 14:07 ` Breno Leitao
2025-09-09 14:05 ` Breno Leitao
2025-09-10 0:40 ` Calvin Owens
2025-09-05 17:25 ` [PATCH net v3 2/3] selftest: netcons: refactor target creation Breno Leitao
2025-09-05 17:27 ` kernel test robot
2025-09-08 10:13 ` Simon Horman
2025-09-05 17:25 ` [PATCH net v3 3/3] selftest: netcons: create a torture test Breno Leitao
2025-09-08 10:13 ` Simon Horman [this message]
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