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Fri, 09 Jan 2026 14:51:36 -0800 (PST) Received: from [192.168.1.14] ([38.175.187.108]) by smtp.gmail.com with ESMTPSA id 5614622812f47-45a5e2e8fb1sm5117059b6e.21.2026.01.09.14.51.34 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 09 Jan 2026 14:51:35 -0800 (PST) Message-ID: <1d52f1ee-0f60-410e-8c7e-c5fee0a92402@linuxfoundation.org> Date: Fri, 9 Jan 2026 15:51:34 -0700 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v3] selftests/tracing: Fix test_multiple_writes stall To: Fushuai Wang , 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 References: <20260109033620.25727-1-fushuai.wang@linux.dev> Content-Language: en-US From: Shuah Khan In-Reply-To: <20260109033620.25727-1-fushuai.wang@linux.dev> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 1/8/26 20:36, Fushuai Wang wrote: > From: Fushuai Wang > > 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 > Signed-off-by: Fushuai Wang > Acked-by: Steven Rostedt (Google) > --- > 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