From: Shuah Khan <skhan@linuxfoundation.org>
To: Fushuai Wang <fushuai.wang@linux.dev>,
rostedt@goodmis.org, mhiramat@kernel.org,
mathieu.desnoyers@efficios.com, shuah@kernel.org,
wangfushuai@baidu.com
Cc: linux-kernel@vger.kernel.org, linux-trace-kernel@vger.kernel.org,
linux-kselftest@vger.kernel.org,
Shuah Khan <skhan@linuxfoundation.org>
Subject: Re: [PATCH v3] selftests/tracing: Fix test_multiple_writes stall
Date: Fri, 9 Jan 2026 15:51:34 -0700 [thread overview]
Message-ID: <1d52f1ee-0f60-410e-8c7e-c5fee0a92402@linuxfoundation.org> (raw)
In-Reply-To: <20260109033620.25727-1-fushuai.wang@linux.dev>
On 1/8/26 20:36, Fushuai Wang wrote:
> From: Fushuai Wang <wangfushuai@baidu.com>
>
> When /sys/kernel/tracing/buffer_size_kb is less than 12KB,
> the test_multiple_writes test will stall and wait for more
> input due to insufficient buffer space.
>
> Check current buffer_size_kb value before the test. If it is
> less than 12KB, it temporarily increase the buffer to 12KB,
> and restore the original value after the tests are completed.
>
> Fixes: 37f46601383a ("selftests/tracing: Add basic test for trace_marker_raw file")
> Suggested-by: Steven Rostedt <rostedt@goodmis.org>
> Signed-off-by: Fushuai Wang <wangfushuai@baidu.com>
> Acked-by: Steven Rostedt (Google) <rostedt@goodmis.org>
> ---
> V2 -> V3: Make the From and SoB match.
> V1 -> V2: Restore buffer_size_kb outside of awk script.
Thank you. Applied to linux-kselftest fixes branch.
I will send this up for the next rc.
thanks,
-- Shuah
prev parent reply other threads:[~2026-01-09 22:51 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-01-09 3:36 Fushuai Wang
2026-01-09 22:51 ` Shuah Khan [this message]
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