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Wed, 19 Jun 2024 15:45:34 +0000 (GMT) From: Ilya Leoshkevich To: Alexander Gordeev , Alexander Potapenko , Andrew Morton , Christoph Lameter , David Rientjes , Heiko Carstens , Joonsoo Kim , Marco Elver , Masami Hiramatsu , Pekka Enberg , Steven Rostedt , Vasily Gorbik , Vlastimil Babka Cc: Christian Borntraeger , Dmitry Vyukov , Hyeonggon Yoo <42.hyeyoo@gmail.com>, kasan-dev@googlegroups.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-s390@vger.kernel.org, linux-trace-kernel@vger.kernel.org, Mark Rutland , Roman Gushchin , Sven Schnelle , Ilya Leoshkevich Subject: [PATCH v5 02/37] kmsan: Make the tests compatible with kmsan.panic=1 Date: Wed, 19 Jun 2024 17:43:37 +0200 Message-ID: <20240619154530.163232-3-iii@linux.ibm.com> X-Mailer: git-send-email 2.45.1 In-Reply-To: <20240619154530.163232-1-iii@linux.ibm.com> References: <20240619154530.163232-1-iii@linux.ibm.com> MIME-Version: 1.0 X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: RWsOexlj7_0iWLLyvnapnr06durS79vv X-Proofpoint-GUID: gZnZrvku0DfDeUyU90WAlNuPdsXG4CTD X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1039,Hydra:6.0.680,FMLib:17.12.28.16 definitions=2024-06-19_02,2024-06-19_01,2024-05-17_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 clxscore=1015 impostorscore=0 bulkscore=0 malwarescore=0 lowpriorityscore=0 adultscore=0 phishscore=0 suspectscore=0 mlxlogscore=999 priorityscore=1501 mlxscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2405170001 definitions=main-2406190115 X-Rspamd-Server: rspam06 X-Rspamd-Queue-Id: CD13FA0017 X-Stat-Signature: t1fr4wuuiuhmz3am9unfyy3d34mcn6b7 X-Rspam-User: X-HE-Tag: 1718811958-348145 X-HE-Meta: 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 O82wp83/ P8yQDgZVwNjKHsruRyzO+fzFT6D4LUVlR0cSInpRgSFYJ8jTH3P53WZjwhrmPBs2XEJKGyjllHUajDja14XBRrgkp7nP/vIcjoPzQL3K+DpiFdqDgn1QwskygHLrZKPV5lrw+z3VjBdvPOD7H8a2IYyFS5Y6KDOU/s3ZMF0O4Ds75Wt2ZGJ/dcXFOJhVpqrn0ID+f/7Om5EWiLN8suRWft/RqsCftp0U//uAOrmmHq8tKHrateI1v2nte/G6zFO0UV/aC56/AkEnVOfugyb+NA1Bd5AYOcW+98AAEeH7rm6nJzzcpPfu/s2ouStYADvbIbdX/oB5XcqtQBSY= X-Bogosity: Ham, tests=bogofilter, spamicity=0.000026, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: It's useful to have both tests and kmsan.panic=1 during development, but right now the warnings, that the tests cause, lead to kernel panics. Temporarily set kmsan.panic=0 for the duration of the KMSAN testing. Reviewed-by: Alexander Potapenko Signed-off-by: Ilya Leoshkevich --- mm/kmsan/kmsan_test.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/mm/kmsan/kmsan_test.c b/mm/kmsan/kmsan_test.c index 07d3a3a5a9c5..9bfd11674fe3 100644 --- a/mm/kmsan/kmsan_test.c +++ b/mm/kmsan/kmsan_test.c @@ -659,9 +659,13 @@ static void test_exit(struct kunit *test) { } +static int orig_panic_on_kmsan; + static int kmsan_suite_init(struct kunit_suite *suite) { register_trace_console(probe_console, NULL); + orig_panic_on_kmsan = panic_on_kmsan; + panic_on_kmsan = 0; return 0; } @@ -669,6 +673,7 @@ static void kmsan_suite_exit(struct kunit_suite *suite) { unregister_trace_console(probe_console, NULL); tracepoint_synchronize_unregister(); + panic_on_kmsan = orig_panic_on_kmsan; } static struct kunit_suite kmsan_test_suite = {