linux-kernel - Re: [PATCH bpf-next] selftests/bpf: Fix the snprintf test

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Date:   Fri, 30 Apr 2021 17:50:10 +0000
From:   patchwork-bot+netdevbpf@...nel.org
To:     Florent Revest <revest@...omium.org>
Cc:     bpf@...r.kernel.org, ast@...nel.org, daniel@...earbox.net,
        andrii@...nel.org, kpsingh@...nel.org, jackmanb@...gle.com,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH bpf-next] selftests/bpf: Fix the snprintf test

Hello:

This patch was applied to bpf/bpf.git (refs/heads/master):

On Wed, 28 Apr 2021 17:25:01 +0200 you wrote:
> The BPF program for the snprintf selftest runs on all syscall entries.
> On busy multicore systems this can cause concurrency issues.
> 
> For example it was observed that sometimes the userspace part of the
> test reads "    4 0000" instead of "    4 000" (extra '0' at the end)
> which seems to happen just before snprintf on another core sets
> end[-1] = '\0'.
> 
> [...]

Here is the summary with links:
  - [bpf-next] selftests/bpf: Fix the snprintf test
    https://git.kernel.org/bpf/bpf/c/f80f88f0e2f2

You are awesome, thank you!
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