netdev - Re: [PATCH bpf] selftests/bpf: fix stacktrace_build_id with missing kprobe/urandom

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Message-Id: <165366421191.28804.10243668813609197004.git-patchwork-notify@kernel.org>
Date:   Fri, 27 May 2022 15:10:11 +0000
From:   patchwork-bot+netdevbpf@...nel.org
To:     Song Liu <song@...nel.org>
Cc:     bpf@...r.kernel.org, netdev@...r.kernel.org, ast@...nel.org,
        daniel@...earbox.net, andrii@...nel.org, kernel-team@...com,
        mykolal@...com
Subject: Re: [PATCH bpf] selftests/bpf: fix stacktrace_build_id with missing
 kprobe/urandom_read

Hello:

This patch was applied to bpf/bpf.git (master)
by Alexei Starovoitov <ast@...nel.org>:

On Thu, 26 May 2022 12:16:08 -0700 you wrote:
> Kernel function urandom_read is replaced with urandom_read_iter.
> Therefore, kprobe on urandom_read is not working any more:
> 
> [root@...50-1 bpf]# ./test_progs -n 161
> test_stacktrace_build_id:PASS:skel_open_and_load 0 nsec
> libbpf: kprobe perf_event_open() failed: No such file or directory
> libbpf: prog 'oncpu': failed to create kprobe 'urandom_read+0x0' \
>         perf event: No such file or directory
> libbpf: prog 'oncpu': failed to auto-attach: -2
> test_stacktrace_build_id:FAIL:attach_tp err -2
> 161     stacktrace_build_id:FAIL
> 
> [...]

Here is the summary with links:
  - [bpf] selftests/bpf: fix stacktrace_build_id with missing kprobe/urandom_read
    https://git.kernel.org/bpf/bpf/c/59ed76fe2f98

You are awesome, thank you!
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