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McKenney" X-Mailer: Apple Mail (2.3731.400.51.1.1) X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: 3M356xG5GLdKkxm4sUicxH7aE3_zQHtU X-Proofpoint-GUID: 3M356xG5GLdKkxm4sUicxH7aE3_zQHtU X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.254,Aquarius:18.0.942,Hydra:6.0.573,FMLib:17.11.170.22 definitions=2023-03-22_21,2023-03-23_02,2023-02-09_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 lowpriorityscore=0 mlxscore=0 malwarescore=0 suspectscore=0 adultscore=0 bulkscore=0 impostorscore=0 mlxlogscore=999 phishscore=0 priorityscore=1501 spamscore=0 clxscore=1011 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2303150002 definitions=main-2303230124 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org >> [ 3629.243407] NIP [00007fff8cd39558] 0x7fff8cd39558 >> [ 3629.243410] LR [000000010d800398] 0x10d800398 >> [ 3629.243413] --- interrupt: c00 >> [ 3629.243415] Code: 419dffa4 e93a0078 39400001 552907be 2f890000 = 7d20579e 0b090000 e95a0078 e91a0080 39200001 7fa85000 7d204f9e = <0b090000> 7f23cb78 4bfffd65 0b030000=20 >> [ 3629.243430] ---[ end trace 0000000000000000 ]=E2=80=94 >>=20 >> These warnings are repeated few times. The LTP test is marked as = PASS. >>=20 >> Git bisect point to the following patch >> commit f46a5170e6e7d5f836f2199fe82cdb0b4363427f >> srcu: Use static init for statically allocated in-module = srcu_struct >=20 > Hello, Sachin, and it looks like you hit something that Zqiang and I > have been tracking down. I am guessing that you were using modprobe > and rmmod to make this happen, and that this happened at rmmod time. >=20 Yes, the LTP test script rcu_torture.sh relies on modprobe to = load/unload the rcutorture module. > Whatever the reproducer, does the following patch help? >=20 > Thanx, Paul >=20 Thank you for the patch. Yes, with this patch applied, the test = completes successfully without the reported warning. - Sachin