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Mon, 6 Mar 2023 13:34:02 GMT Received: from smtpav02.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id D11E320067; Mon, 6 Mar 2023 13:34:01 +0000 (GMT) Received: from smtpav02.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 9F23020043; Mon, 6 Mar 2023 13:34:01 +0000 (GMT) Received: from [9.101.4.33] (unknown [9.101.4.33]) by smtpav02.fra02v.mail.ibm.com (Postfix) with ESMTP; Mon, 6 Mar 2023 13:34:01 +0000 (GMT) Message-ID: <3ee16846-3aed-4c52-b4b7-a60a848fa06f@linux.ibm.com> Date: Mon, 6 Mar 2023 14:34:01 +0100 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:102.0) Gecko/20100101 Thunderbird/102.7.2 Subject: Re: Selftests powerpc/primitives test hangs (linux-next) Content-Language: en-US To: Sachin Sant , linuxppc-dev Cc: linux-mm@kvack.org, surenb@google.com References: <842502FB-F99C-417C-9648-A37D0ECDC9CE@linux.ibm.com> From: Laurent Dufour In-Reply-To: <842502FB-F99C-417C-9648-A37D0ECDC9CE@linux.ibm.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-TM-AS-GCONF: 00 X-Proofpoint-GUID: Aq5SsWYDtMYfJbsoHUc9Gx2Hm_Tlq9qY X-Proofpoint-ORIG-GUID: jR3J0Pr3ysfMh0ddrGBrej237t8l9-_0 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.219,Aquarius:18.0.942,Hydra:6.0.573,FMLib:17.11.170.22 definitions=2023-03-06_05,2023-03-06_01,2023-02-09_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 mlxlogscore=999 suspectscore=0 adultscore=0 mlxscore=0 phishscore=0 spamscore=0 clxscore=1011 malwarescore=0 lowpriorityscore=0 bulkscore=0 impostorscore=0 priorityscore=1501 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2212070000 definitions=main-2303060120 X-Rspam-User: X-Rspamd-Server: rspam04 X-Rspamd-Queue-Id: 8BF8580012 X-Stat-Signature: dmrjpo5txu764d1btd336k5od66s8e9u X-HE-Tag: 1678109648-775509 X-HE-Meta: U2FsdGVkX1+KMB6u6JSOV1LJuMxsQ/iHbWN1QN5pOPcHoboKhhtsL7X2B0rcV2mnQXXYWBdNJdDnf3xoEU0ZAUCCNF7qtebHN7PfFJwpQD5WgMa3WXTaxn5iLl0xQBm4UoNr5gm9nvlWAwibJrZcf10I+ug2jXIiaf3UpFYsWAIbIkNO9wKXTnQf/rG9yZ3rKmNAv0E232g0d8NcRBZO3PErH68tewfrOcXZbstYBqM8A7WRoRLJ7fCxfirvooLvATgeocWBoQ+OXUUKG36+WqPiZt7lv1k1aXUhwTQ116P5KftW2JpoxS5WcxKowNz/hf5jrIaYY8m7i32lL4OvegEP70DQFUJr7QzSI6+dMtuPfFSP6dO2qj2ahAVRny8O8/xXyVT1AvHHtjnNAK0fO9VGqFW912rByKrlshGyCYFE41ZEm3YsP1IbY2om9OqKx12rAkvO2qmJ/xCo0J9Ch0AeUkJE5A/pOgHkm8qdAVHsfT1OO/Ku8cVn/mPVoJJxPismDc0I8y99ToLpzqKjBmkAOMKyHvRA/2OToPeNi4+7IJq8OjGemZA3tpkEkR8MTiwAdip073bmLUHPlIumBSRV53zxwTSgzBvvYwSYyLBKtKayPwS8sH7u53JgqSuWQ8rpHPfWvaCrL+ayDfunG+IUIQCgFsb4M4Xb7xs1hG8twM4OntG46Sot1KdRTG4C92x31sUlxP/PiVMBWaDTEZFR0RhAtL8jWL+sl4fqD2b0DsygH8L2KS5HAyO/DSXFO7+5FgBU9/uRq8Qgz8Pu2IJcT71vXTNXYEwe7UeHiCxWtN43BUmaJDiAxBaXyET2I6kREuL8vr1GeQ5Q9ttoLsGIUkLbZ4ZvofStakv5tXDoaEzrIs6WKNKIGF3dvFHgwp1A4UHAtGpH6nQNlJl2zkQ7ogzte9NUcMQxGpSIljU5h7ZrZiEa58BcrzC5qXyf/s8dwtlH2qzyHOaC73d OuO3+wpd 3FaRHqjPNmPmlcMqv3xo3FmU9qDvM3k/A3NyisjLPaY2FEz3S0gsIrY5nsPiMI+gqCoCC46ZT+G5thKWuo7SeERnJw72EUi6RX+TCnZr/kPBkf1dlAUsBo7e4EyfR4gj9+4cORrmv7F+a+UiCOikO4PvqoQ== X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On 03/03/2023 10:19:29, Sachin Sant wrote: > While running powerpc/primitives selftests, the test (load_unaligned_zeropad) > hangs indefinitely. This behaviour is seen with linux-next 6.2.0-next-20230303 > on a Power10 logical partition. > > Git bisect points to following commit > > commit 169db3bb460903443e25ac9c0737da45d6bb5402 > powerc/mm: try VMA lock-based page fault handling first > > - Sachin > My mistake, bad_access_pkey() and bad_access() are releasing the mmap_lock. Writing a fix...