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Wed, 06 May 2026 09:06:22 +0000 (GMT) Received: from smtpav07.fra02v.mail.ibm.com (smtpav07.fra02v.mail.ibm.com [10.20.54.106]) by smtprelay07.fra02v.mail.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 64696ICG40698334 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 6 May 2026 09:06:18 GMT Received: from smtpav07.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 7178620043; Wed, 6 May 2026 09:06:18 +0000 (GMT) Received: from smtpav07.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 194702004E; Wed, 6 May 2026 09:06:16 +0000 (GMT) Received: from li-3f69264c-2ce6-11b2-a85c-c3f414d24014.bl1-in.ibm.com (unknown [9.123.3.209]) by smtpav07.fra02v.mail.ibm.com (Postfix) with ESMTP; Wed, 6 May 2026 09:06:15 +0000 (GMT) From: Sayali Patil To: linuxppc-dev@lists.ozlabs.org, maddy@linux.ibm.com Cc: linux-kernel@vger.kernel.org, Ritesh Harjani , Mahesh Salgaonkar , sshegde@linux.ibm.com, chleroy@kernel.org Subject: [PATCH 0/3] MCE robustness fixes and LKDTM powerpc enhancements Date: Wed, 6 May 2026 14:36:11 +0530 Message-ID: X-Mailer: git-send-email 2.52.0 X-Mailing-List: linuxppc-dev@lists.ozlabs.org List-Id: List-Help: List-Owner: List-Post: List-Archive: , List-Subscribe: , , List-Unsubscribe: Precedence: list MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 X-Proofpoint-Reinject: loops=2 maxloops=12 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNTA2MDA4OCBTYWx0ZWRfX+9WRqitIvUOr AxbttCeFRLjKT6UkSLLQd80KXV9LKxGr6wMAFhfO/e0xD2ru+Irpsap6ApppkvM1L7GkrEtl8fN n1ZQX5Gd8anqXReqZxXM3oSAWupHIhAYPKdndA7rEdpN83dytGYDdhJwgQiBCE5PWSknlowKNJC 0QpF78xtBVBNwLXYZgCD5JLymdUxMZ5E3+anf3zJs9B0HPR7PY0cJPn/E36eyL6sQtZFrDs9z6L 7w3EGfFgNtSP6B7yUHl52wH4+jkM3Pbw9Ha+RVYZMCg0zcIC4WvKKnk5n1mLWZEwMuCwv7VCwt/ Bfdc3vbqbs2ffOG/C0GqM8xRFmww5O6oIQL3zTeRCBVhPtf8c6YJ7Rzmi+0hio1dEJPHx77894/ R3bwJOzKs3LW5gtC2sTKLaaahY0qS63PaIJK/uDXtZ8cKbCKIBOnnaVMotka0751LPW/P4Z0Fpb SVyPjcl55pjSt8lFIKg== X-Proofpoint-ORIG-GUID: sgZyMQBvrbCHfiM67QmXQG3JSN5tCeeP X-Proofpoint-GUID: 0DiLvGPqNPpeJG3St9KNvRBSTFW8mNFC X-Authority-Analysis: v=2.4 cv=ctWrVV4i c=1 sm=1 tr=0 ts=69fb048f cx=c_pps a=5BHTudwdYE3Te8bg5FgnPg==:117 a=5BHTudwdYE3Te8bg5FgnPg==:17 a=NGcC8JguVDcA:10 a=VkNPw1HP01LnGYTKEx00:22 a=RnoormkPH1_aCDwRdu11:22 a=V8glGbnc2Ofi9Qvn3v5h:22 a=4LFl1V1j6vrMI3_rxnIA:9 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-05-05_03,2026-04-30_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 lowpriorityscore=0 adultscore=0 clxscore=1015 suspectscore=0 impostorscore=0 spamscore=0 malwarescore=0 phishscore=0 bulkscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2604200000 definitions=main-2605060088 Hi all, This series fixes a panic observed while handling machine check exceptions (MCEs) from real mode. It also improves the reliability of the PPC_SLB_MULTIHIT test by adding isync instructions after slbmte operations, and introduces a new LKDTM trigger (PPC_RADIX_TLBIEL) to validate MCE behavior on radix MMU. Please review the patches and provide any feedback or suggestions for improvement. Thanks, Sayali Sayali Patil (3): powerpc/time: remove preempt_disable/enable from arch_irq_work_raise() lkdtm/powerpc: add isync after slbmte to enforce SLB update ordering lkdtm/powerpc: add PPC_RADIX_TLBIEL test for radix MCE validation arch/powerpc/kernel/time.c | 2 -- drivers/misc/lkdtm/Makefile | 2 +- drivers/misc/lkdtm/powerpc.c | 44 +++++++++++++++++++++++++ tools/testing/selftests/lkdtm/tests.txt | 1 + 4 files changed, 46 insertions(+), 3 deletions(-) -- 2.52.0