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Tue, 22 Apr 2025 09:59:04 -0700 (PDT) Received: from [192.168.1.14] ([38.175.170.29]) by smtp.gmail.com with ESMTPSA id 8926c6da1cb9f-4f6a3957613sm2412786173.120.2025.04.22.09.59.04 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 22 Apr 2025 09:59:04 -0700 (PDT) Message-ID: Date: Tue, 22 Apr 2025 10:59:03 -0600 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 v2] tracing: selftests: Add testing a user string to filters To: Steven Rostedt , LKML , Linux Trace Kernel Cc: Masami Hiramatsu , Mathieu Desnoyers , Andrew Morton , linux-kselftest@vger.kernel.org, Shuah Khan References: <20250418101208.38dc81f5@gandalf.local.home> Content-Language: en-US From: Shuah Khan In-Reply-To: <20250418101208.38dc81f5@gandalf.local.home> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 4/18/25 08:12, Steven Rostedt wrote: > From: Steven Rostedt > > Running the following commands was broken: > > # cd /sys/kernel/tracing > # echo "filename.ustring ~ \"/proc*\"" > events/syscalls/sys_enter_openat/filter > # echo 1 > events/syscalls/sys_enter_openat/enable > # ls /proc/$$/maps > # cat trace > > And would produce nothing when it should have produced something like: > > ls-1192 [007] ..... 8169.828333: sys_openat(dfd: ffffffffffffff9c, filename: 7efc18359904, flags: 80000, mode: 0) > > Add a test to check this case so that it will be caught if it breaks > again. > > Link: https://lore.kernel.org/linux-trace-kernel/20250417183003.505835fb@gandalf.local.home/ > > Signed-off-by: Steven Rostedt (Google) > --- > Changes since v1: https://lore.kernel.org/20250417223323.3edb4f6c@batman.local.home > > - Use $TMPDIR instead of $TESTDIR as test file (Masami Hiramatsu) > Steve, Masami Do you want me to take this for rc4? thanks, -- Shuah