From: Nam Cao <namcao@linutronix.de>
To: Tomas Glozar <tglozar@redhat.com>, Gabriele Monaco <gmonaco@redhat.com>
Cc: John Ogness <john.ogness@linutronix.de>,
Alexei Starovoitov <alexei.starovoitov@gmail.com>,
linux-kernel@vger.kernel.org, linux-trace-kernel@vger.kernel.org,
bpf@vger.kernel.org, Steven Rostedt <rostedt@goodmis.org>,
Wen Yang <wen.yang@linux.dev>,
Tobias Schaffner <tobias.schaffner@siemens.com>,
Viktor Malik <vmalik@redhat.com>
Subject: Re: [PATCH v2 10/15] tools/rv: Add BPF monitors
Date: Wed, 21 Oct 2026 09:26:46 +0200 [thread overview]
Message-ID: <87ld7rqzt5.fsf@yellow.woof> (raw)
In-Reply-To: <CAP4=nvRhd1d+o8O045LB=dcYa2UudH7ZbG388wcwEX+JNBWY=Q@mail.gmail.com>
Tomas Glozar <tglozar@redhat.com> writes:
> I was talking about preventing other (non-RV) consumers of
> bpf_trace_printk from seeing the RV prints. Eg. if I create a tracefs
> instance and enable bpf_trace_printk, intending to see my own debug
> prints, I will also see debug prints for RV, unless I explicitly
> filter them out. I get that on the RV side, these are mostly
> equivalent.
I haven't used BPF before, but is that not an RV-specific problem? If
user has two BPF programs running that both do bpf_trace_printk,
obviously they get mixed prints. They can either filter out other
prints, or stop running the other one.
Additionally an RV message only appears when something is wrong. So when
there is an RV print, there is a bigger problem to worry about.
Nam
next prev parent reply other threads:[~2026-10-21 7:26 UTC|newest]
Thread overview: 88+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-01 15:20 [PATCH v2 00/15] rv: Add support for " Gabriele Monaco
2026-10-01 15:20 ` [PATCH v2 01/15] sched: Add task enqueue/dequeue trace points Gabriele Monaco
2026-10-01 15:49 ` Peter Zijlstra
2026-10-02 7:09 ` Gabriele Monaco
2026-10-02 10:29 ` Peter Zijlstra
2026-10-02 11:55 ` Gabriele Monaco
2026-10-02 19:18 ` Peter Zijlstra
2026-10-02 19:40 ` Gabriele Monaco
2026-10-04 7:57 ` Steven Rostedt
2026-10-12 11:54 ` Peter Zijlstra
2026-10-04 7:45 ` Steven Rostedt
2026-10-12 11:49 ` Peter Zijlstra
2026-10-02 0:42 ` bot+bpf-ci
2026-10-01 15:20 ` [PATCH v2 02/15] tools/rv: Skip empty pid error in selftest if command failed Gabriele Monaco
2026-10-02 0:42 ` bot+bpf-ci
2026-10-01 15:20 ` [PATCH v2 03/15] rv: Refactor da_trace() functions to get strings internally Gabriele Monaco
2026-10-01 15:20 ` [PATCH v2 04/15] rv: Cast result of model_get_*_name() Gabriele Monaco
2026-10-13 6:14 ` Nam Cao
2026-10-13 8:15 ` Gabriele Monaco
2026-10-14 9:52 ` Gabriele Monaco
2026-10-14 10:02 ` Nam Cao
2026-10-01 15:20 ` [PATCH v2 05/15] tools/rv: Move argument parsing from in_kernel to utils Gabriele Monaco
2026-10-02 0:25 ` bot+bpf-ci
2026-10-01 15:20 ` [PATCH v2 06/15] tools/build: Add a feature test for bpftool-btf Gabriele Monaco
2026-10-01 15:20 ` [PATCH v2 07/15] tools/rv: Implement BPF monitor discovery and listing Gabriele Monaco
2026-10-02 0:42 ` bot+bpf-ci
2026-10-01 15:20 ` [PATCH v2 08/15] tools/rv: Implement BPF monitor loading and tracing Gabriele Monaco
2026-10-02 0:43 ` bot+bpf-ci
2026-10-01 15:20 ` [PATCH v2 09/15] tools/rv: Copy stripped bpf_atomic.h from libarena Gabriele Monaco
2026-10-02 0:42 ` bot+bpf-ci
2026-10-07 12:59 ` Nam Cao
2026-10-08 9:00 ` Gabriele Monaco
2026-10-08 11:16 ` Nam Cao
2026-10-09 10:09 ` Gabriele Monaco
2026-10-11 0:43 ` Steven Rostedt
2026-10-12 7:43 ` Gabriele Monaco
2026-10-01 15:20 ` [PATCH v2 10/15] tools/rv: Add BPF monitors Gabriele Monaco
2026-10-02 0:43 ` bot+bpf-ci
2026-10-06 13:29 ` Alexei Starovoitov
2026-10-08 9:54 ` Gabriele Monaco
2026-10-16 18:32 ` Alexei Starovoitov
2026-10-16 19:20 ` John Ogness
2026-10-17 10:42 ` Gabriele Monaco
2026-10-17 15:17 ` John Ogness
2026-10-17 16:09 ` Alexei Starovoitov
2026-10-17 16:56 ` John Ogness
2026-10-17 23:25 ` Alexei Starovoitov
2026-10-18 12:10 ` John Ogness
2026-10-19 9:05 ` Gabriele Monaco
2026-10-19 9:27 ` John Ogness
2026-10-19 9:46 ` Tomas Glozar
2026-10-19 13:16 ` Steven Rostedt
2026-10-19 10:01 ` Tomas Glozar
2026-10-19 10:43 ` Gabriele Monaco
2026-10-19 11:05 ` Tomas Glozar
2026-10-19 12:47 ` Gabriele Monaco
2026-10-19 13:05 ` Tomas Glozar
2026-10-21 7:26 ` Nam Cao [this message]
2026-10-19 13:02 ` John Ogness
2026-10-20 7:29 ` Gabriele Monaco
2026-10-21 8:01 ` Nam Cao
2026-10-21 11:54 ` Gabriele Monaco
2026-10-21 13:48 ` Steven Rostedt
2026-10-21 15:24 ` Gabriele Monaco
2026-10-21 16:47 ` John Ogness
2026-10-22 6:46 ` Gabriele Monaco
2026-10-22 8:15 ` John Ogness
2026-10-22 10:09 ` Gabriele Monaco
2026-10-22 11:34 ` Gabriele Monaco
2026-10-22 8:25 ` Nam Cao
2026-10-19 8:33 ` Gabriele Monaco
2026-10-19 9:10 ` John Ogness
2026-10-19 10:48 ` Gabriele Monaco
2026-10-19 12:51 ` Nam Cao
2026-10-19 13:14 ` John Ogness
2026-10-21 8:13 ` Nam Cao
2026-10-21 8:46 ` Gabriele Monaco
2026-10-21 11:12 ` Nam Cao
2026-10-21 15:55 ` Gabriele Monaco
2026-10-17 10:48 ` Gabriele Monaco
2026-10-01 15:20 ` [PATCH v2 11/15] tools/rv: Define CONFIG_X86_64 statically for " Gabriele Monaco
2026-10-01 15:20 ` [PATCH v2 12/15] tools/rv: Add reactors support to " Gabriele Monaco
2026-10-02 0:43 ` bot+bpf-ci
2026-10-01 15:20 ` [PATCH v2 13/15] verification/rvgen: Add support for " Gabriele Monaco
2026-10-02 0:25 ` bot+bpf-ci
2026-10-01 15:20 ` [PATCH v2 14/15] tools/rv: Add selftest for rv bpf monitors Gabriele Monaco
2026-10-02 0:43 ` bot+bpf-ci
2026-10-01 15:20 ` [PATCH v2 15/15] verification/rvgen: Add selftest for rvgen -b Gabriele Monaco
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