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Tue, 21 Nov 2023 22:02:06 GMT Received: from smtpav06.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 670C12005A; Tue, 21 Nov 2023 22:02:06 +0000 (GMT) Received: from smtpav06.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id EB7C820063; Tue, 21 Nov 2023 22:02:04 +0000 (GMT) Received: from heavy.boeblingen.de.ibm.com (unknown [9.179.23.98]) by smtpav06.fra02v.mail.ibm.com (Postfix) with ESMTP; Tue, 21 Nov 2023 22:02:04 +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 v2 02/33] kmsan: Make the tests compatible with kmsan.panic=1 Date: Tue, 21 Nov 2023 23:00:56 +0100 Message-ID: <20231121220155.1217090-3-iii@linux.ibm.com> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20231121220155.1217090-1-iii@linux.ibm.com> References: <20231121220155.1217090-1-iii@linux.ibm.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 X-Proofpoint-GUID: F0Gr-ImZBuLQsqLgWKYFAuGuX6uvUEWS X-Proofpoint-ORIG-GUID: unXBtwpdlIVx4NpqCio10Xz4H4TSmNdm X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.987,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2023-11-21_12,2023-11-21_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 mlxscore=0 mlxlogscore=999 spamscore=0 suspectscore=0 phishscore=0 priorityscore=1501 malwarescore=0 clxscore=1015 impostorscore=0 adultscore=0 bulkscore=0 lowpriorityscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2311060000 definitions=main-2311210172 X-Rspamd-Queue-Id: D8484C001E X-Rspam-User: X-Rspamd-Server: rspam04 X-Stat-Signature: wrbrjqe78fha9rtggez5ca7431okwpng X-HE-Tag: 1700604166-389048 X-HE-Meta: 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 iFCPO9QQ GTGN+//7XQ77qA8zFLAcms0vTWq5MPwUfPV5tFyZzWBR3ap1Q8b304EBY+CfG+NHmTNd4r8YFHQHQfj9Uu4Ql+KKl+/Bd5EEHfZ0ybcOMbV31g3I5BZTOvdutx1QUboUriPQ9HQ3kq5yVXQ0tNNooMd3eFvFcYD7hP3NSllYQ93RMVrYSEMsgYoXk/vrMqxBY2pTMJt5bEx9wFn5KiqhTL+kWYUXZVMC81USTZwZWewRwRPHZG5Z//y/6xPB2A09nX7ocXPzKAkL3XFxAaRCGtWvo2OjUvzULueLoVFF59TDGCjgdw9NeA2mj1VQbEWMwaGqVUnPnLCJI43k= 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 = { -- 2.41.0