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Message-Id: <168065401700.950.3027124778713262383.git-patchwork-notify@kernel.org>
Date: Wed, 05 Apr 2023 00:20:17 +0000
From: patchwork-bot+netdevbpf@...nel.org
To: Jiri Olsa <jolsa@...nel.org>
Cc: mcgrof@...nel.org, ast@...nel.org, daniel@...earbox.net,
andrii@...nel.org, asavkov@...hat.com, bpf@...r.kernel.org,
linux-modules@...r.kernel.org, linux-kernel@...r.kernel.org,
kafai@...com, songliubraving@...com, yhs@...com,
john.fastabend@...il.com, kpsingh@...omium.org, sdf@...gle.com,
haoluo@...gle.com, pmladek@...e.com, thunder.leizhen@...wei.com,
vmalik@...hat.com
Subject: Re: [PATCH bpf-next] kallsyms: Disable preemption for
find_kallsyms_symbol_value
Hello:
This patch was applied to bpf/bpf-next.git (master)
by Andrii Nakryiko <andrii@...nel.org>:
On Tue, 4 Apr 2023 00:02:54 +0200 you wrote:
> Artem reported suspicious RCU usage [1]. The reason is that verifier
> calls find_kallsyms_symbol_value with preemption enabled which will
> trigger suspicious RCU usage warning in rcu_dereference_sched call.
>
> Disabling preemption in find_kallsyms_symbol_value and adding
> __find_kallsyms_symbol_value function.
>
> [...]
Here is the summary with links:
- [bpf-next] kallsyms: Disable preemption for find_kallsyms_symbol_value
https://git.kernel.org/bpf/bpf-next/c/d099f594ad56
You are awesome, thank you!
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