From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 720761E3790; Mon, 4 Nov 2024 10:54:38 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1730717678; cv=none; b=GnC87HnqUCNA4wsxks+TOIPJWYasNnCXCtmdaBw1tHzic2/bYwGDtLkEMIGrcO6eUc0NDo2emcveRNKydVfodFpQuCqI6y0xEYa9Vs3EEfSM1GNXqYZAnM9dDeNgPKDrtvF5K5yMa2KW9OMw1ojHBN6bEQdeXbNz/wNlXARdpwU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1730717678; c=relaxed/simple; bh=+yqfSSt6kLDRneh9fTkP2DWL8YT9Gj+cYVQcFnLkFkw=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=JbVGwRUbQNWqwdGs8SGqGxzhRwZqMM7nuOvOMzn7oKVKuoZiLiX+6M3CMEXidYMU0JZE7PNjnebjivL2PwSMNPOjCFDfrAk6YKOHicS/i1QHr7hJZDzlxsTbDfPxYvpQ0YywxkksYxmap2TjNIRsgqiJhuj4HSgsB1avUYC7YCM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=ExRIp/N2; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="ExRIp/N2" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 6A82CC4CECE; Mon, 4 Nov 2024 10:54:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1730717678; bh=+yqfSSt6kLDRneh9fTkP2DWL8YT9Gj+cYVQcFnLkFkw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ExRIp/N2xNRRmIvFVIJu9SqaE6WWAm7rUCzxpoB7Kr55ZU0oaZrm5LtP+/FJKMTbN 4D0QVgqTYQCmEihQfdxtnKGF+mrFqj9+1H1Rz2Nmx7BLjuJIz3lRhQrB/JhD7sMfyP yy3kK7jwzpkvJ2jn0yf+gaSmJz1vU9j4TGUnN/i2AnKuu1irdXBLbfKK2Z6rT5yCH4 tLtFgxaONGN2rHT8HxQAuMDtKyfWX+6inVIRQnePyhdA12a9b9MzHCv2GWKKz45hWk AEiqnCu2znjKWTq7QuKn0TqbNbxYbtRHVN/h9u82itdOtJqeox3FSVkp02vQ2mqzAH y9e7LAtc/U9Ig== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Li Zhijian , Shuah Khan , Sasha Levin , shuah@kernel.org, linux-kselftest@vger.kernel.org Subject: [PATCH AUTOSEL 5.15 07/10] selftests/watchdog-test: Fix system accidentally reset after watchdog-test Date: Mon, 4 Nov 2024 05:53:56 -0500 Message-ID: <20241104105414.97666-7-sashal@kernel.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20241104105414.97666-1-sashal@kernel.org> References: <20241104105414.97666-1-sashal@kernel.org> Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore X-stable-base: Linux 5.15.170 Content-Transfer-Encoding: 8bit From: Li Zhijian [ Upstream commit dc1308bee1ed03b4d698d77c8bd670d399dcd04d ] When running watchdog-test with 'make run_tests', the watchdog-test will be terminated by a timeout signal(SIGTERM) due to the test timemout. And then, a system reboot would happen due to watchdog not stop. see the dmesg as below: ``` [ 1367.185172] watchdog: watchdog0: watchdog did not stop! ``` Fix it by registering more signals(including SIGTERM) in watchdog-test, where its signal handler will stop the watchdog. After that # timeout 1 ./watchdog-test Watchdog Ticking Away! . Stopping watchdog ticks... Link: https://lore.kernel.org/all/20241029031324.482800-1-lizhijian@fujitsu.com/ Signed-off-by: Li Zhijian Reviewed-by: Shuah Khan Signed-off-by: Shuah Khan Signed-off-by: Sasha Levin --- tools/testing/selftests/watchdog/watchdog-test.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/tools/testing/selftests/watchdog/watchdog-test.c b/tools/testing/selftests/watchdog/watchdog-test.c index f45e510500c0d..09773695d219f 100644 --- a/tools/testing/selftests/watchdog/watchdog-test.c +++ b/tools/testing/selftests/watchdog/watchdog-test.c @@ -242,7 +242,13 @@ int main(int argc, char *argv[]) printf("Watchdog Ticking Away!\n"); + /* + * Register the signals + */ signal(SIGINT, term); + signal(SIGTERM, term); + signal(SIGKILL, term); + signal(SIGQUIT, term); while (1) { keep_alive(); -- 2.43.0