From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mx0a-001b2d01.pphosted.com (mx0a-001b2d01.pphosted.com [148.163.156.1]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id B32F649C4A9 for ; Fri, 25 Sep 2026 12:44:28 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=148.163.156.1 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790340270; cv=none; b=EPt66WQF3obCl06ou1fLuaSgZAPs/8lOzR6mtr1yA9Wn6yxz6xD5A97xYwoLgbbSm6nqcyxmen+3Kt2d53PXSDr1qsxJTd+eiWX2V/x86YsuzU+L9gj6kabUOkY3gkHS9Oxw7FBzv1OUtAdS0TKzmQc9nfO3m7hlpU731XfYyzM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790340270; c=relaxed/simple; bh=U5M8qQC/FK26UygNc9IQlzpt2lkBC6Nj7ayMTOxTo0E=; h=Message-ID:Date:MIME-Version:To:Cc:From:Subject:Content-Type; b=PglhR8Nmok3Hb8SW8S3V/s5LV6VP8d1SgMaSKAGz/CeWNBkv+xWB9o0ZQUFKyse7Sr0V0OlrtenBTf21h/q/F0YEXeNjt2oT9X5IdLK8XlnAb17eZ1+SOsqqhjZFc2sPr83r6MuIeB1iIUFXr7HSj+Cv5mumkZqVjHu1g9zEEOA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.ibm.com; spf=pass smtp.mailfrom=linux.ibm.com; dkim=pass (2048-bit key) header.d=ibm.com header.i=@ibm.com header.b=WDqDZPT4; arc=none smtp.client-ip=148.163.156.1 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.ibm.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.ibm.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=ibm.com header.i=@ibm.com header.b="WDqDZPT4" Received: from pps.filterd (m0356517.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.18.1.11/8.18.1.11) with ESMTP id 68P4Zmpm060711; Fri, 25 Sep 2026 12:44:20 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ibm.com; h=cc :content-transfer-encoding:content-type:date:from:message-id :mime-version:subject:to; s=pp1; bh=lT/k0sKxE8GBOsNbHUIeaxf5Hwkl iwvprm7cekuocYs=; b=WDqDZPT4HbJ5h1qimvsdG1dcaJwBSNmEjKyQfZUcStUq yAH+F4TicuFXRd31nlmhlybegVDGfaJqJY5/7Y5tpFMiseOo2KPSMBLyfhb54V8h ZNoPYu+lLagaEvDkmSFrcF+lBp2YQGae+TCSTgmlbt26NYcrcgwH1hsCfHjPqo5k 4iV3krfuhCz/U+1F8AYK4ryW5mwxo1DG9ywEcA7+7dqzXPaKRRPT5RvPpvZazEBi J6I7LlYUbwA/S6cXlC0LStl2QT10Evw2LMwxWQG61ogq8HUbCUoNbYkOurq6qBtX /lVk6VzU0V+a5kF0HywxLehG+EpYoOFGmlGZDAzbxg== Received: from ppma21.wdc07v.mail.ibm.com (5b.69.3da9.ip4.static.sl-reverse.com [169.61.105.91]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 4gskgsq03a-1 (version=TLSv1.3 cipher=TLS_AES_256_GCM_SHA384 bits=256 verify=NOT); Fri, 25 Sep 2026 12:44:20 +0000 (GMT) Received: from pps.filterd (ppma21.wdc07v.mail.ibm.com [127.0.0.1]) by ppma21.wdc07v.mail.ibm.com (8.18.1.11/8.18.1.11) with ESMTP id 68P9m6BJ3248950; Fri, 25 Sep 2026 12:44:19 GMT Received: from smtprelay01.wdc07v.mail.ibm.com ([172.16.1.68]) by ppma21.wdc07v.mail.ibm.com (PPS) with ESMTPS id 4gvbt32ake-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 25 Sep 2026 12:44:19 +0000 (GMT) Received: from smtpav03.dal12v.mail.ibm.com (smtpav03.dal12v.mail.ibm.com [10.241.53.102]) by smtprelay01.wdc07v.mail.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 68PCiHUe63439192 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 25 Sep 2026 12:44:17 GMT Received: from smtpav03.dal12v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 1D6195803F; Fri, 25 Sep 2026 12:44:17 +0000 (GMT) Received: from smtpav03.dal12v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 8274758056; Fri, 25 Sep 2026 12:44:14 +0000 (GMT) Received: from [9.61.242.145] (unknown [9.61.242.145]) by smtpav03.dal12v.mail.ibm.com (Postfix) with ESMTP; Fri, 25 Sep 2026 12:44:14 +0000 (GMT) Message-ID: Date: Fri, 25 Sep 2026 18:14:12 +0530 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Content-Language: en-GB To: Madhavan Srinivasan , Shrikanth Hegde , Ritesh Harjani , Christophe Leroy Cc: linuxppc-dev , LKML , nandinih@linux.ibm.com From: Venkat Rao Bagalkote Subject: [linux-next20260923] powerpc/TM: Unexpected TM Bad Thing exception Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 X-Authority-Analysis: v=2.4 cv=V/XoQuni c=1 sm=1 tr=0 ts=6ab66ca4 cx=c_pps a=GFwsV6G8L6GxiO2Y/PsHdQ==:117 a=GFwsV6G8L6GxiO2Y/PsHdQ==:17 a=IkcTkHD0fZMA:10 a=VdqzKS8jKosA:10 a=VkNPw1HP01LnGYTKEx00:22 a=RnoormkPH1_aCDwRdu11:22 a=U7nrCbtTmkRpXpFmAIza:22 a=VnNF1IyMAAAA:8 a=H_bSzb3YpO_zdF-jonAA:9 a=3ZKOabzyN94A:10 a=QEXdDO2ut3YA:10 X-Proofpoint-ORIG-GUID: rAr8QZnyEc9iwmA5aXd27tFH_YNqrVCC X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwOTI1MDA1MCBTYWx0ZWRfX+26CwAqGwlFI SoGAVnzHW60YSfHnVvyGxixPhzgSRapp5ig0AEWMCr1uQoTiAM6iczzjfStdEy53iBu38Ioj8Wd VxungLo4gwzWZqfUaIknTb0EZ3btIbYocyJCN235s6dMgrAVK8mMUyHCbx6w7Ohkm1AbCMpQ9qv xcncAzLIDXadYEE1Tq9qp8ZwwEwvsaa5AcZTLsV+JzDdMRTn/GN3PZTyPRJ2bwzquH45k9z8mao u3oKJMykRIMPmu901KGUKgdjxzrOE3UuyHguudjL/41jGeVD/FijEcwNwr0YqLPuPptU69k7pMW pdMBtilPFlA6J7d5Ghm9GVZivfjsk57trTJ7BkePP7NLUkpjN/wfVTvn7ugheg71wfJpjs7wwqc CUyrPh8FNi/146hbHeg/DcnEyHnncyJO2ySRhQE3I61KY3grORcEJDsT6NHXi2N6RpozOEvlo6w FqEKuSafXoAblivIc3w== X-Proofpoint-Spam-Info: AW1haW4tMjYwOTI1MDA1MCBTYWx0ZWRfXz6HuXBD2JyuX wZHK85o3XLTBY8xkMs4Jyu0JF27P2ZyTa37w/6LObflFSqlCDrjCCY442PBCz8R5RPeXtG/oRf8 rq6HAUtyNbl7JhxtsUayG5r8ypmP7ms= X-Proofpoint-GUID: rAr8QZnyEc9iwmA5aXd27tFH_YNqrVCC X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1176,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-09-25_02,2026-09-21_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 spamscore=0 malwarescore=0 clxscore=1015 phishscore=0 bulkscore=0 adultscore=0 lowpriorityscore=0 impostorscore=0 suspectscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2609040000 definitions=main-2609250050 Hello All, IBM CI has reported following bug on Power9 pseries lpar, while running powerpc/signal selftest. This issue is reported on linux-next tree. Traces: [ 2111.590537] Unexpected TM Bad Thing exception at c00000000000dbac (msr 0x8000000302a03031) tm_scratch=800000010280b033 [ 2111.590582] Oops: Unrecoverable exception, sig: 6 [#1] [ 2111.590592] LE PAGE_SIZE=64K MMU=Hash  SMP NR_CPUS=8192 NUMA pSeries [ 2111.590606] Modules linked in: bonding(E) tls(E) rfkill(E) nft_fib_inet(E) nft_fib_ipv4(E) nft_fib_ipv6(E) nft_fib(E) nft_reject_inet(E) nf_reject_ipv4(E) nf_reject_ipv6(E) nft_reject(E) nft_ct(E) nft_chain_nat(E) hvcs(E) hvcserver(E) pseries_rng(E) vmx_crypto(E) sg(E) drm(E) fuse(E) drm_panel_orientation_quirks(E) xfs(E) nvme_tcp(E) nvme_fabrics(E) nvme_core(E) sr_mod(E) sd_mod(E) cdrom(E) ibmvscsi(E) ibmveth(E) scsi_transport_srp(E) dm_mirror(E) dm_region_hash(E) dm_log(E) dm_mod(E) [ 2111.590749] CPU: 17 UID: 0 PID: 994879 Comm: sigfuz Tainted: G           E        7.3.0-rc4-next-20260923 #1 PREEMPT [ 2111.590764] Tainted: [E]=UNSIGNED_MODULE [ 2111.590771] Hardware name: IBM,8375-42A POWER9 (architected) 0x4e0202 0xf000005 of:IBM,FW950.80 (VL950_131) hv:phyp pSeries [ 2111.590783] NIP:  c00000000000dbac LR: c0000000007239b4 CTR: c0000000007237f0 [ 2111.590793] REGS: c00000002e6d7d60 TRAP: 0700   Tainted: G       E         (7.3.0-rc4-next-20260923) [ 2111.590803] MSR:  8000000302a03031   CR: 88004445  XER: 000000cd [ 2111.590846] CFAR: c00000000000da68 IRQMASK: 0 [ 2111.590846] PACATMSCRATCH: 800000010280b033 [ 2111.590846] GPR00: c000000000723c1c c000000039a8f410 c00000000212b200 0000000000500cc2 [ 2111.590846] GPR04: c000000004082c60 ffffffffffffffff c000000039a8f47c 0000000000000000 [ 2111.590846] GPR08: c000000004082c60 c0000000007237f0 c000000000723780 6c2f7273752f006f [ 2111.590846] GPR12: c0000000007b1310 c00000002e99b300 0000000000000000 0000000000000000 [ 2111.590846] GPR16: 0000000000000000 0000000000000000 0000000000000000 0000000000000003 [ 2111.590846] GPR20: 0000000000000003 0000000000000040 0000000000010000 c000000039a8f800 [ 2111.590846] GPR24: 0000000000000000 0000000000000040 c00000029fa7de00 c0000000471cd700 [ 2111.590846] GPR28: 0000000000500cc2 c000000039a8f47c 0000000000000000 c000000004082c60 [ 2111.590981] NIP [c00000000000dbac] interrupt_return_srr_kernel+0x15c/0x18c [ 2111.591005] LR [c0000000007239b4] alloc_pages_mpol+0x54/0x260 [ 2111.591030] Call Trace: [ 2111.591037] [c000000039a8f450] [c000000193f76f00] 0xc000000193f76f00 [ 2111.591053] [c000000039a8f4b0] [c000000000723c1c] alloc_pages_noprof+0x5c/0xf0 [ 2111.591070] [c000000039a8f4d0] [c0000000007b118c] anon_pipe_prefill_and_lock+0x8c/0x210 [ 2111.591086] [c000000039a8f570] [c0000000007b138c] anon_pipe_write+0x7c/0x810 [ 2111.591099] [c000000039a8f640] [c00000000079f138] __kernel_write_iter+0x128/0x300 [ 2111.591114] [c000000039a8f6c0] [c000000000874638] __dump_emit+0x128/0x250 [ 2111.591130] [c000000039a8f7a0] [c00000000086aa44] elf_core_dump+0x244/0x5c0 [ 2111.591145] [c000000039a8f9b0] [c000000000874b50] coredump_write+0xd0/0x470 [ 2111.591160] [c000000039a8fa40] [c000000000874fb0] do_coredump.constprop.0+0xc0/0x4e0 [ 2111.591175] [c000000039a8fb20] [c000000000875580] vfs_coredump+0x1b0/0x300 [ 2111.591188] [c000000039a8fc30] [c000000000256408] get_signal+0x918/0xad0 [ 2111.591209] [c000000039a8fd20] [c000000000021d48] do_signal+0x78/0x330 [ 2111.591226] [c000000039a8fdc0] [c0000000015125a8] irqentry_exit+0x358/0x990 [ 2111.591240] [c000000039a8fe20] [c00000000002f714] program_check_exception+0xd4/0x100 [ 2111.591253] [c000000039a8fe50] [c000000000009b2c] program_check_common_virt+0x3bc/0x3c0 [ 2111.591267] ---- interrupt: 700 at 0x10001e8c [ 2111.591276] NIP:  0000000010001e8c LR: 0000000010001e74 CTR: 00007fffb4400590 [ 2111.591286] REGS: c000000039a8fe80 TRAP: 0700   Tainted: G       E         (7.3.0-rc4-next-20260923) [ 2111.591296] MSR:  8000000302a0f033   CR: 22004442 XER: 000000cd [ 2111.591337] CFAR: 00007fffb44005bc IRQMASK: 0 [ 2111.591337] PACATMSCRATCH: 800000010280b033 [ 2111.591337] GPR00: 0000000010001e74 00007fffb43ad3c0 0000000010027f00 00000000415e6618 [ 2111.591337] GPR04: 00007fffb43ad384 00007fffb45f004c 00007fffb45f0090 00007fffb45f0048 [ 2111.591337] GPR08: 0000000082bccc31 00000000415e6618 0000000000000000 00000000415e6618 [ 2111.591337] GPR12: 00007fffb4400590 00007fffb43b68e0 0000000000000000 00007fffb43af1e0 [ 2111.591337] GPR16: 0000000000000000 00007fffb43af8e0 0000000000000720 0000000000000000 [ 2111.591337] GPR20: 0000000000000000 00007fffb46f0000 000000000080e9e0 00007fffb3ba0000 [ 2111.591337] GPR24: 0000000000000001 00007fffd8d5ecb0 0000000000000000 00007fffb43ae8f8 [ 2111.591337] GPR28: 000000000000000a 0000000000000000 00000000100201bc 00000000000f2e3f [ 2111.591475] NIP [0000000010001e8c] 0x10001e8c [ 2111.591484] LR [0000000010001e74] 0x10001e74 [ 2111.591492] ---- interrupt: 700 [ 2111.591499] Code: 7c8903a6 7ca103a6 f8010020 e8410040 e8610048 e8810050 e8a10058 40c6001c 7ccff120 e8c10060 e8010030 e8210038 <4c000024> 48000000 7ccff120 f92d0080 [ 2111.591549] ---[ end trace 0000000000000000 ]--- If you happen to fix this issue please add below tag. Reported-by: Venkat Rao Bagalkote Regards, Venkat.