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Subject: Re: [PATCH bpf-next v2] selftests/bpf: fix potential premature unload in
 bpf_testmod
From: patchwork-bot+netdevbpf@kernel.org
Message-Id: 
 <170542023010.19641.12554162884652194073.git-patchwork-notify@kernel.org>
Date: Tue, 16 Jan 2024 15:50:30 +0000
References: <20240110085737.8895-1-asavkov@redhat.com>
In-Reply-To: <20240110085737.8895-1-asavkov@redhat.com>
To: Artem Savkov <asavkov@redhat.com>
Cc: ast@kernel.org, daniel@iogearbox.net, andrii@kernel.org,
 bpf@vger.kernel.org, netdev@vger.kernel.org, jolsa@kernel.org,
 linux-kernel@vger.kernel.org, yonghong.song@linux.dev

Hello:

This patch was applied to bpf/bpf-next.git (master)
by Daniel Borkmann <daniel@iogearbox.net>:

On Wed, 10 Jan 2024 09:57:37 +0100 you wrote:
> It is possible for bpf_kfunc_call_test_release() to be called from
> bpf_map_free_deferred() when bpf_testmod is already unloaded and
> perf_test_stuct.cnt which it tries to decrease is no longer in memory.
> This patch tries to fix the issue by waiting for all references to be
> dropped in bpf_testmod_exit().
> 
> The issue can be triggered by running 'test_progs -t map_kptr' in 6.5,
> but is obscured in 6.6 by d119357d07435 ("rcu-tasks: Treat only
> synchronous grace periods urgently").
> 
> [...]

Here is the summary with links:
  - [bpf-next,v2] selftests/bpf: fix potential premature unload in bpf_testmod
    https://git.kernel.org/bpf/bpf-next/c/6ad61815babf

You are awesome, thank you!
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