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Wed, 21 Feb 2024 06:16:56 GMT Received: from smtpav03.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id A37542004B; Wed, 21 Feb 2024 06:16:54 +0000 (GMT) Received: from smtpav03.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 88C5E20040; Wed, 21 Feb 2024 06:16:53 +0000 (GMT) Received: from [9.43.82.166] (unknown [9.43.82.166]) by smtpav03.fra02v.mail.ibm.com (Postfix) with ESMTP; Wed, 21 Feb 2024 06:16:53 +0000 (GMT) Message-ID: <1d80f9dd-f36e-41a7-aef6-35e8e1b159ba@linux.ibm.com> Date: Wed, 21 Feb 2024 11:46:52 +0530 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Content-Language: en-US From: Geetika M To: linuxppc-dev@lists.ozlabs.org Subject: [powerpc] WARNING at arch/powerpc/mm/mmu_context.c:106 switch_mm_irqs_off+0x140/0x17 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-TM-AS-GCONF: 00 X-Proofpoint-GUID: 5-KidTQvuarAjzA8ZvoEyFo2zyy7TdAX X-Proofpoint-ORIG-GUID: pvSAKrfdU8Dq-2GF4DwW-VX6pjalm6z0 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.1011,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2024-02-20_06,2024-02-20_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 impostorscore=0 bulkscore=0 clxscore=1011 mlxscore=0 adultscore=0 lowpriorityscore=0 mlxlogscore=594 malwarescore=0 spamscore=0 phishscore=0 suspectscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2311290000 definitions=main-2402210046 X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: shirisha@linux.ibm.com, sachinp@linux.ibm.com, npiggin@gmail.com Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" While running DLPAR CPU remove test on a IBM Power10 server (6.8.0-rc2) following warning is seen : [ 2334.165288][ T0] ------------[ cut here ]------------ [ 2334.165302][ T0] WARNING: CPU: 45 PID: 0 at arch/powerpc/mm/mmu_context.c:106 switch_mm_irqs_off+0x140/0x170 [ 2334.165316][ T0] Modules linked in: rpadlpar_io rpaphp bonding nfnetlink pseries_rng rng_core vmx_crypto gf128mul aes_gcm_p10_crypto crct10dif_vpmsum crct10dif_common binfmt_misc crc32c_vpmsum fuse autofs4 [ 2334.165337][ T0] CPU: 45 PID: 0 Comm: swapper/45 Not tainted 6.8.0-rc2 #1 [ 2334.165342][ T0] Hardware name: IBM,9105-22A POWER10 (raw) 0x800200 0xf000006 of:IBM,FW1060.00 (NL1060_024) hv:phyp pSeries [ 2334.165345][ T0] NIP: c00000000008c5f0 LR: c00000000008c590 CTR: c0000000000fa084 [ 2334.165347][ T0] REGS: c000000003e67b40 TRAP: 0700 Not tainted (6.8.0-rc2) [ 2334.165351][ T0] MSR: 800000000282b033 CR: 24000222 XER: 00000000 [ 2334.165365][ T0] CFAR: c00000000008c5a4 IRQMASK: 1 [ 2334.165365][ T0] GPR00: c00000000008c590 c000000003e67de0 c000000001559700 c000000008c12700 [ 2334.165365][ T0] GPR04: c000000002986480 c000000003ccff00 000000000000002d 0000000000000000 [ 2334.165365][ T0] GPR08: 000000000000002d 0000000000000000 c000000002986a80 0000000000000000 [ 2334.165365][ T0] GPR12: c0000000000fa084 c000000efff88700 0000000000000000 000000002eede6a0 [ 2334.165365][ T0] GPR16: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 [ 2334.165365][ T0] GPR20: 0000000000000000 0000000000000000 0000000000000000 0000000000000001 [ 2334.165365][ T0] GPR24: 000000000000002d 000000000000dedc c000000002a62cc8 c0000000029dcc68 [ 2334.165365][ T0] GPR28: c0000000029e1340 0000000000000000 000000000000002d c000000008c12d00 [ 2334.165407][ T0] NIP [c00000000008c5f0] switch_mm_irqs_off+0x140/0x170 [ 2334.165412][ T0] LR [c00000000008c590] switch_mm_irqs_off+0xe0/0x170 [ 2334.165417][ T0] Call Trace: [ 2334.165418][ T0] [c000000003e67de0] [c000000003e67e30] 0xc000000003e67e30 (unreliable) [ 2334.165425][ T0] [c000000003e67e20] [c0000000001a7bb4] idle_task_exit+0x90/0xb4 [ 2334.165433][ T0] [c000000003e67e50] [c0000000000fa0b8] pseries_cpu_offline_self+0x34/0xec [ 2334.165440][ T0] [c000000003e67ec0] [c00000000005cbb0] arch_cpu_idle_dead+0x48/0x98 [ 2334.165446][ T0] [c000000003e67ee0] [c0000000001cacb4] do_idle+0x2c0/0x3c0 [ 2334.165451][ T0] [c000000003e67f60] [c0000000001cb044] cpu_startup_entry+0x4c/0x50 [ 2334.165457][ T0] [c000000003e67f90] [c00000000005c798] start_secondary+0x2b4/0x2c4 [ 2334.165461][ T0] [c000000003e67fe0] [c00000000000e258] start_secondary_prolog+0x10/0x14 [ 2334.165466][ T0] Code: 4e800020 60000000 60000000 60000000 7ca32b78 48008eb9 60000000 4bffffb8 0fe00000 4bffff1c 60000000 60000000 <0fe00000> e8010050 ebe10038 7c0803a6 [ 2334.165481][ T0] ---[ end trace 0000000000000000 ]--- - Geetika