From: Simon Horman <horms@kernel.org>
To: Stanislav Fomichev <sdf@fomichev.me>
Cc: netdev@vger.kernel.org, davem@davemloft.net, edumazet@google.com,
kuba@kernel.org, pabeni@redhat.com, paulmck@kernel.org,
joel@joelfernandes.org, steven.price@arm.com,
akpm@linux-foundation.org, matttbe@kernel.org,
anshuman.khandual@arm.com, linux-kernel@vger.kernel.org
Subject: Re: [PATCH net-next] configs/debug: run and debug PREEMPT
Date: Fri, 4 Apr 2025 10:32:54 +0100 [thread overview]
Message-ID: <20250404093254.GC214849@horms.kernel.org> (raw)
In-Reply-To: <20250402172305.1775226-1-sdf@fomichev.me>
On Wed, Apr 02, 2025 at 10:23:05AM -0700, Stanislav Fomichev wrote:
> Recent change [0] resulted in a "BUG: using __this_cpu_read() in
> preemptible" splat [1]. PREEMPT kernels have additional requirements
> on what can and can not run with/without preemption enabled.
> Expose those constrains in the debug kernels.
>
> 0: https://lore.kernel.org/netdev/20250314120048.12569-2-justin.iurman@uliege.be/
> 1: https://lore.kernel.org/netdev/20250402094458.006ba2a7@kernel.org/T/#mbf72641e9d7d274daee9003ef5edf6833201f1bc
>
> Signed-off-by: Stanislav Fomichev <sdf@fomichev.me>
Reviewed-by: Simon Horman <horms@kernel.org>
next prev parent reply other threads:[~2025-04-04 9:32 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-04-02 17:23 [PATCH net-next] configs/debug: run and debug PREEMPT Stanislav Fomichev
2025-04-04 9:32 ` Simon Horman [this message]
2025-04-08 18:18 ` Matthieu Baerts
2025-04-08 19:03 ` Jakub Kicinski
2025-04-09 11:58 ` Matthieu Baerts
2025-04-09 15:55 ` Jakub Kicinski
2025-04-10 1:00 ` patchwork-bot+netdevbpf
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