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AJvYcCVabCVpiMEOyUAqfeIltsjrRqdSd7wh6i/L4k6Fmw+hLdl0tQUby8Goy7g5gj2YUtBk++rmSD65ddepgX1nEsjr59U= X-Gm-Message-State: AOJu0Yy0ShwdwO8dI1WbSJ2GrQNo7NIb6Z/ifrqODNmYBKS496FXSKgF uDkcOnmu8ici+bMfvsPCnQvXRU/N9IZMAIVPrF70hajxLuC1snxY1dRKY4AJhgw= X-Google-Smtp-Source: AGHT+IF1+3P0pRgwkXsR0FAWIIytKywrIML3Fqxwpp1fn6IdRgXx4TsuO6HiuiBf9bLph6vSY6g+qA== X-Received: by 2002:a17:902:d48d:b0:1fb:24ea:fe02 with SMTP id d9443c01a7336-1fc4e16ab7emr52140735ad.18.1721343825147; Thu, 18 Jul 2024 16:03:45 -0700 (PDT) Received: from localhost ([2804:14d:7e39:8470:15c8:3512:f33c:2f80]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-1fd64b8693asm1105435ad.72.2024.07.18.16.03.43 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 18 Jul 2024 16:03:44 -0700 (PDT) From: Thiago Jung Bauermann To: Mark Brown Cc: Catalin Marinas , Will Deacon , Jonathan Corbet , Andrew Morton , Marc Zyngier , Oliver Upton , James Morse , Suzuki K Poulose , Arnd Bergmann , Oleg Nesterov , Eric Biederman , Shuah Khan , "Rick P. Edgecombe" , Deepak Gupta , Ard Biesheuvel , Szabolcs Nagy , Kees Cook , "H.J. Lu" , Paul Walmsley , Palmer Dabbelt , Albert Ou , Florian Weimer , Christian Brauner , Ross Burton , linux-arm-kernel@lists.infradead.org, linux-doc@vger.kernel.org, kvmarm@lists.linux.dev, linux-fsdevel@vger.kernel.org, linux-arch@vger.kernel.org, linux-mm@kvack.org, linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org Subject: Re: [PATCH v9 37/39] kselftest/arm64: Add GCS signal tests In-Reply-To: <20240625-arm64-gcs-v9-37-0f634469b8f0@kernel.org> (Mark Brown's message of "Tue, 25 Jun 2024 15:58:05 +0100") References: <20240625-arm64-gcs-v9-0-0f634469b8f0@kernel.org> <20240625-arm64-gcs-v9-37-0f634469b8f0@kernel.org> Date: Thu, 18 Jul 2024 20:03:41 -0300 Message-ID: <87a5iexpyq.fsf@linaro.org> MIME-Version: 1.0 Content-Type: text/plain X-Rspamd-Queue-Id: A2217A0012 X-Rspam-User: X-Rspamd-Server: rspam05 X-Stat-Signature: oa7hzfz9tc8ukx3osria6bshkesb1966 X-HE-Tag: 1721343826-519278 X-HE-Meta: U2FsdGVkX1+EAR9vnDqjise5C/CKRS0ezM/SV+RmeH/cA9Pvnwa0Cjw+wHE79KmuByD+lchDSnR7mE9oa6B4mBbazdChBvj9sR0H9au21kxeAzubndc+domKUmSC2j7mgCk9EprE1tFEwnFOgjvu509iu5qIoFWnTrcfT51PyK0KkXF1ji4x8A/zyQXd0XQZKWoAbl38XzzmEqWFXutpXENh6I5iMKGdB7v7GCoykgnGCgRr2vrpORjGPvgZHbofQS9h/tPeRv+Tcpag7ajfJPR55EXRLhMrw8mMkAIS89y5PrGMO+L4DvJyuYKkE5noHzSmYX82kWMWellSWeAoLbW2OQkp7/O2xlHAaIGUN/bVcZBvr/uKCcFHt2T2thb+PDvggmZIPH0vl7FpBVLGh17LSsCc516SZ+HuuP85z3Sbf3UEHF/9d2tbjl1bxlTo2EeL6VXh88BT5m7Mh34dI3vVL/eZjmm840gA1l57MbfYou8rsYl/JqUjg16uyRobPTVNqSUp4spLrAzrNp8ZpGkvU0aNTYnAbM1sQjh8PjtDFNw382sKNS9IOriaQO7FjLkep/jdwxs5rgXUXlK/fstFFiHJiVKqR7pkruePaKfiISm0VhFG5IbVh2XU7jSZaGS2S2vPXCpovDX8qsaelleMQS/S79Q3K85nOizwFjHaaue2EubguYnzv6al3jsQY0YwCSD3tNh/Twgri4o4Bp2Zim3uiomYcUfRCbsgGi+esGd4+ShWmVwsku1rox0/xCzVFUWxX/g49PNtOcuXCBg51XZ9PmIHacCSsTYMaJrHWnLERFi/NEe+bnDPohRPccUj+EyOe5DRug8scRomdu0L8Qx9L3M9xs7RINEOD/+NhMc73xBnavanBmZm8v7NSQWbmMba63S0ts+vNiSVfS4iXubyKaY3PO2nlZzIebbxs3ofTUkjRrXN9waAI8o4sEo10hsu/F8sUleMbuM f/s1pInl f1+aoXBqevCMI6rEtpkbQVH5jTg0UZpJ2ZFM7n8TnyoDDFKXgy650AhllSO7NCp0GUz+QyKJVaT8Smw+DfxsHbXdH1ePWnGLJTXIO+nQU4QUve04dNvg6naEcQ3hdolADUJNULE+5n0GQcw1q/ZKLW1PtmQRasHlZT+grbIci0XC2AGRBPdW4DIY1Gd9JKpSkLOfqv0G1lsRJq3dHeX3FqPFQ52fpJx9zDHO8i+1RtCd7+Tz8KenjLFL7geXjJkxLfLo8/zmOuZ0HDiaOLHn37lT6TMjUG3P546JNsdRpMmouzv0dUopf2AreRgnV8wCKP2aYb1HpXeif4O4FJ/W4m12Jc2A1FTLQctZnxGIJBCkLhD41nagOWfJtIQRFXu7kPRGRw/RdS58TuyIix40o5AeLnctvnVwohmr7QRF5XsJ546Ol/rrW/i/Zag== X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: Mark Brown writes: > Do some testing of the signal handling for GCS, checking that a GCS > frame has the expected information in it and that the expected signals > are delivered with invalid operations. > > Reviewed-by: Thiago Jung Bauermann > Signed-off-by: Mark Brown > --- > tools/testing/selftests/arm64/signal/.gitignore | 1 + > .../selftests/arm64/signal/test_signals_utils.h | 10 +++ > .../arm64/signal/testcases/gcs_exception_fault.c | 62 +++++++++++++++ > .../selftests/arm64/signal/testcases/gcs_frame.c | 88 ++++++++++++++++++++++ > .../arm64/signal/testcases/gcs_write_fault.c | 67 ++++++++++++++++ > 5 files changed, 228 insertions(+) The gcs_write_fault test fails for me, even without THP: $ sudo ./run_kselftest.sh -t arm64:gcs_write_fault TAP version 13 1..1 # timeout set to 45 # selftests: arm64: gcs_write_fault # # GCS write fault :: Normal writes to a GCS segfault # Registered handlers for all signals. # Detected MINSTKSIGSZ:4720 # Required Features: [ GCS ] supported # Incompatible Features: [] absent # Testcase initialized. # Read value 0x0 # SIG_OK -- SP:0xFFFFCF1292D0 si_addr@:0xffffba645000 si_code:10 token@:(nil) offset:-281473808879616 # si_code != SEGV_ACCERR...test is probably broken! # -- RX UNEXPECTED SIGNAL: 6 code -6 address 0xf76 # ==>> completed. FAIL(0) not ok 1 selftests: arm64: gcs_write_fault # exit=1 It also generates an "INVALID GCS" line in dmesg. -- Thiago