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Wed, 24 Sep 2025 05:00:47 -0700 (PDT) From: Jinchao Wang To: Andrew Morton , Masami Hiramatsu , Peter Zijlstra , Mike Rapoport , Alexander Potapenko , Randy Dunlap , Jonathan Corbet , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , x86@kernel.org, "H. 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Miller" , Mathieu Desnoyers , linux-trace-kernel@vger.kernel.org Cc: Jinchao Wang Subject: [PATCH v5 21/23] tools/ksw: add test script Date: Wed, 24 Sep 2025 19:59:27 +0800 Message-ID: <20250924115931.197077-6-wangjinchao600@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250924115931.197077-1-wangjinchao600@gmail.com> References: <20250924115124.194940-1-wangjinchao600@gmail.com> <20250924115931.197077-1-wangjinchao600@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspamd-Queue-Id: 84D00A0011 X-Rspam-User: X-Rspamd-Server: rspam07 X-Stat-Signature: ewk91ztzrxgqhdrqpssx1r17wn8sq1zp X-HE-Tag: 1758715249-66348 X-HE-Meta: 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 jPTDRp8G yY6Id1K8Z2JzyoH7Ni+m2a5gC7IuJcNmBgvN6o3NInTNTTChKiOyX7dv0K/dD224e6Ovzh+YDua+R3rS2KSDA5V8BWQPYh+x1gAnfB0vSfyUoLnrJ0/m+s9MIiuDljPgAVrTtfd+sYKrgz4+pivB3jqnkChcJ8Bp/xP1bnQxlJXDbS90gfJWh15ydBA== 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: Provide a shell script to trigger test cases. Signed-off-by: Jinchao Wang --- tools/kstackwatch/kstackwatch_test.sh | 52 +++++++++++++++++++++++++++ 1 file changed, 52 insertions(+) create mode 100755 tools/kstackwatch/kstackwatch_test.sh diff --git a/tools/kstackwatch/kstackwatch_test.sh b/tools/kstackwatch/kstackwatch_test.sh new file mode 100755 index 000000000000..aede35dcb8b6 --- /dev/null +++ b/tools/kstackwatch/kstackwatch_test.sh @@ -0,0 +1,52 @@ +#!/bin/bash +# SPDX-License-Identifier: GPL-2.0 + +echo "IMPORTANT: Before running, make sure you have updated the config values!" + +usage() { + echo "Usage: $0 [0-5]" + echo " 0 - test watch fire" + echo " 1 - test canary overflow" + echo " 2 - test recursive depth" + echo " 3 - test silent corruption" + echo " 4 - test multi-threaded silent corruption" + echo " 5 - test multi-threaded overflow" +} + +run_test() { + local test_num=$1 + case "$test_num" in + 0) echo fn=test_watch_fire fo=0x29 wl=8 >/proc/kstackwatch + echo test0 > /proc/kstackwatch_test + ;; + 1) echo fn=test_canary_overflow fo=0x14 >/proc/kstackwatch + echo test1 >/proc/kstackwatch_test + ;; + 2) echo fn=test_recursive_depth fo=0x2f dp=3 wl=8 so=0 >/proc/kstackwatch + echo test2 >/proc/kstackwatch_test + ;; + 3) echo fn=test_mthread_victim fo=0x4c so=64 wl=8 >/proc/kstackwatch + echo test3 >/proc/kstackwatch_test + ;; + 4) echo fn=test_mthread_victim fo=0x4c so=64 wl=8 >/proc/kstackwatch + echo test4 >/proc/kstackwatch_test + ;; + 5) echo fn=test_mthread_buggy fo=0x16 so=0x100 wl=8 >/proc/kstackwatch + echo test5 >/proc/kstackwatch_test + ;; + *) usage + exit 1 ;; + esac + # Reset watch after test + echo >/proc/kstackwatch +} + +# Check root and module +[ "$EUID" -ne 0 ] && echo "Run as root" && exit 1 +for f in /proc/kstackwatch /proc/kstackwatch_test; do + [ ! -f "$f" ] && echo "$f not found" && exit 1 +done + +# Run +[ -z "$1" ] && { usage; exit 0; } +run_test "$1" -- 2.43.0