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Wed, 13 Dec 2023 23:36:11 +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 v3 02/34] kmsan: Make the tests compatible with kmsan.panic=1 Date: Thu, 14 Dec 2023 00:24:22 +0100 Message-ID: <20231213233605.661251-3-iii@linux.ibm.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20231213233605.661251-1-iii@linux.ibm.com> References: <20231213233605.661251-1-iii@linux.ibm.com> MIME-Version: 1.0 X-TM-AS-GCONF: 00 X-Proofpoint-GUID: VCykK3Okb8hn_WnDc5FlYpZFRwxwi3I7 X-Proofpoint-ORIG-GUID: 7xvJa3gpgWWQD7mxJFyGQAeo7HxdwKpE X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.997,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2023-12-13_14,2023-12-13_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 adultscore=0 clxscore=1015 bulkscore=0 mlxscore=0 spamscore=0 suspectscore=0 impostorscore=0 mlxlogscore=999 phishscore=0 lowpriorityscore=0 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2311290000 definitions=main-2312130167 X-Rspamd-Server: rspam08 X-Rspamd-Queue-Id: 94CC8C0005 X-Stat-Signature: uzne8p155zrtdnfnep5cpnswjzh8cjm1 X-Rspam-User: X-HE-Tag: 1702510617-630911 X-HE-Meta: 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 low05olb Kq2vECQ9e+tbMKeVv0nXYkvxwUfsogxpE22HYfiThVsj4+ca+nx28kee/HBpij/DBdRCnZJbmJDN3Fgevzyh3XSmOFA38+5zzM0qwRBp6PJ3OW/Y3EzvHkUOPlX5VfaVv58dK+Mm5fkoQWOBJ8TEWeoAzjXQrfztjOeZO3H+EO3iKrPHk+OEaPgRvyUxuNLmRNtM70etpFaWLk5rxd0PdUYrnJ87ABJNu98/cBojJazOOMwWrfJlPypflng== X-Bogosity: Ham, tests=bogofilter, spamicity=0.000010, 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 = {