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GET /api/1.2/patches/2232283/?format=api
{ "id": 2232283, "url": "http://patchwork.ozlabs.org/api/1.2/patches/2232283/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linuxppc-dev/patch/e1e479b77781396af366fbb9e8dc67591f3de8dd.1777877814.git.sayalip@linux.ibm.com/", "project": { "id": 2, "url": "http://patchwork.ozlabs.org/api/1.2/projects/2/?format=api", "name": "Linux PPC development", "link_name": "linuxppc-dev", "list_id": "linuxppc-dev.lists.ozlabs.org", "list_email": "linuxppc-dev@lists.ozlabs.org", "web_url": "https://github.com/linuxppc/wiki/wiki", "scm_url": "https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git", "webscm_url": "https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git/", "list_archive_url": "https://lore.kernel.org/linuxppc-dev/", "list_archive_url_format": "https://lore.kernel.org/linuxppc-dev/{}/", "commit_url_format": "https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git/commit/?id={}" }, "msgid": "<e1e479b77781396af366fbb9e8dc67591f3de8dd.1777877814.git.sayalip@linux.ibm.com>", "list_archive_url": "https://lore.kernel.org/linuxppc-dev/e1e479b77781396af366fbb9e8dc67591f3de8dd.1777877814.git.sayalip@linux.ibm.com/", "date": "2026-05-04T08:24:45", "name": "[v6,08/14] selftest/mm: align memory size to huge page size in hugepage-mremap test", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "ad158b36df2fb34945f76d6a67bdd93af1cc729d", "submitter": { "id": 92656, "url": "http://patchwork.ozlabs.org/api/1.2/people/92656/?format=api", "name": "Sayali Patil", "email": "sayalip@linux.ibm.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/linuxppc-dev/patch/e1e479b77781396af366fbb9e8dc67591f3de8dd.1777877814.git.sayalip@linux.ibm.com/mbox/", "series": [ { "id": 502625, "url": "http://patchwork.ozlabs.org/api/1.2/series/502625/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linuxppc-dev/list/?series=502625", "date": "2026-05-04T08:24:37", "name": "selftests/mm: fix failures and robustness improvements", "version": 6, "mbox": "http://patchwork.ozlabs.org/series/502625/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2232283/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2232283/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "\n <linuxppc-dev+bounces-20406-incoming=patchwork.ozlabs.org@lists.ozlabs.org>", "X-Original-To": [ "incoming@patchwork.ozlabs.org", "linuxppc-dev@lists.ozlabs.org" ], "Delivered-To": "patchwork-incoming@legolas.ozlabs.org", "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=ibm.com header.i=@ibm.com header.a=rsa-sha256\n header.s=pp1 header.b=o4yXdfzJ;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=lists.ozlabs.org\n (client-ip=112.213.38.117; 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lists.ozlabs.org;\n dmarc=pass (p=none dis=none) header.from=linux.ibm.com;\n dkim=pass (2048-bit key;\n unprotected) header.d=ibm.com header.i=@ibm.com header.a=rsa-sha256\n header.s=pp1 header.b=o4yXdfzJ; dkim-atps=neutral;\n spf=pass (client-ip=148.163.156.1; helo=mx0a-001b2d01.pphosted.com;\n envelope-from=sayalip@linux.ibm.com;\n receiver=lists.ozlabs.org) smtp.mailfrom=linux.ibm.com", "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed; d=ibm.com; h=cc\n\t:content-transfer-encoding:date:from:in-reply-to:message-id\n\t:mime-version:references:subject:to; s=pp1; bh=PIfsNgy2577DuXl0N\n\tOF1ozWvbjY8j3LLjpYwpQBtv2Q=; b=o4yXdfzJXEKdM9ctSbJ7nZ5nMBSxDEn2V\n\tUMXzSRgs69qg9PNlPGLFiR6liC7wreSTA/tf/Q10jJOJb3cTgROicAq+5YmHiHuH\n\tA3s8XhiOKYMOA+GM1RjDTRmMYLuk8BfNs/jmYrUAe5uwJQCWaKXw1dam23+zGbxv\n\t2CNQgnWvOJfeH+HShmpHVdyTtRBFQwjdg1rwOrW2PTIriGrgSh7QSvA7dZn8nPPf\n\t/QIM+Fdi2stovz/Oc184WbGsGzInQvZZmgikS0vFWzAGgD8d6PypGpufu15zv2GR\n\t+7I27oEYDAxYAJr4RId1lf+h//pZYwF2l/7IQotL++d2rbRVrBk7Q==", "From": "Sayali Patil <sayalip@linux.ibm.com>", "To": "Andrew Morton <akpm@linux-foundation.org>, Shuah Khan <shuah@kernel.org>,\n linux-mm@kvack.org, linux-kernel@vger.kernel.org,\n linux-kselftest@vger.kernel.org,\n Ritesh Harjani <ritesh.list@gmail.com>", "Cc": "David Hildenbrand <david@kernel.org>, Zi Yan <ziy@nvidia.com>,\n Michal Hocko <mhocko@kernel.org>, Oscar Salvador <osalvador@suse.de>,\n Lorenzo Stoakes <lorenzo.stoakes@oracle.com>,\n Dev Jain <dev.jain@arm.com>, Liam.Howlett@oracle.com,\n linuxppc-dev@lists.ozlabs.org, Miaohe Lin <linmiaohe@huawei.com>,\n Venkat Rao Bagalkote <venkat88@linux.ibm.com>,\n Sayali Patil <sayalip@linux.ibm.com>", "Subject": "[PATCH v6 08/14] selftest/mm: align memory size to huge page size in\n hugepage-mremap test", "Date": "Mon, 4 May 2026 13:54:45 +0530", "Message-ID": "\n <e1e479b77781396af366fbb9e8dc67591f3de8dd.1777877814.git.sayalip@linux.ibm.com>", "X-Mailer": "git-send-email 2.52.0", "In-Reply-To": "<cover.1777877814.git.sayalip@linux.ibm.com>", "References": "<cover.1777877814.git.sayalip@linux.ibm.com>", "X-Mailing-List": "linuxppc-dev@lists.ozlabs.org", "List-Id": "<linuxppc-dev.lists.ozlabs.org>", "List-Help": "<mailto:linuxppc-dev+help@lists.ozlabs.org>", "List-Owner": "<mailto:linuxppc-dev+owner@lists.ozlabs.org>", "List-Post": "<mailto:linuxppc-dev@lists.ozlabs.org>", "List-Archive": "<https://lore.kernel.org/linuxppc-dev/>,\n <https://lists.ozlabs.org/pipermail/linuxppc-dev/>", "List-Subscribe": "<mailto:linuxppc-dev+subscribe@lists.ozlabs.org>,\n <mailto:linuxppc-dev+subscribe-digest@lists.ozlabs.org>,\n <mailto:linuxppc-dev+subscribe-nomail@lists.ozlabs.org>", "List-Unsubscribe": "<mailto:linuxppc-dev+unsubscribe@lists.ozlabs.org>", "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": "AW1haW4tMjYwNTA0MDA4NyBTYWx0ZWRfXyaTO1JwJT2VU\n ScHvsyZW0Ghn73J7ZqVn7PaU304cb2c/cq5vGwsywHyQKdqx02GU+Uhg5HJ7nfjltsOuNVlxI1R\n q5FTF8v37N9kEptrYgEQ5QrtOfuMgq55H17yGp0a7RedDdiEu5s64RbrZlweb1Wnh06qU3aFuhq\n UoPe/Rvb4vWCOB0xbOMxkurpOt6/0+W6Hroo+isty7o9tFehuxTlZ+ngwzZSX68hkPbWbnSTnuM\n mrsbzENUUi4v2qE/YSHkqImPRgugYEqdRsRw4xBuqVX6LSXzo9xn7Ilyfi0JRFPnP+eViA9na4X\n E9UNFpaab4VBjhfJITXXzk8mBPsWtSiAr1DsLKjYDxHWYezN56e0du5YxCpeuS7ZwlL7l9GHWC5\n lzUAhHa4xuLqQS6ou+f4xzgfgSxY9rScsBwAy/KPa1SD87anpPPKNd7xa1Go55794fBjbpwoqa+\n fgjZYNHNZ/ioFi4heQA==", "X-Proofpoint-ORIG-GUID": "2Uwy9H7FEZSR6yeaU5GNKtQj-CrwYhqT", "X-Proofpoint-GUID": "sXQvH3R5Y01GydUO8YLje9bEh_SBBbl7", "X-Authority-Analysis": "v=2.4 cv=W7UIkxWk c=1 sm=1 tr=0 ts=69f85802 cx=c_pps\n a=GFwsV6G8L6GxiO2Y/PsHdQ==:117 a=GFwsV6G8L6GxiO2Y/PsHdQ==:17\n a=NGcC8JguVDcA:10 a=VkNPw1HP01LnGYTKEx00:22 a=RnoormkPH1_aCDwRdu11:22\n a=uAbxVGIbfxUO_5tXvNgY:22 a=Ikd4Dj_1AAAA:8 a=VnNF1IyMAAAA:8\n a=7t5IiW4R7ddU3FUDOzEA:9", "X-Proofpoint-Virus-Version": "vendor=baseguard\n engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.51,FMLib:17.12.100.49\n definitions=2026-05-04_03,2026-04-30_02,2025-10-01_01", "X-Proofpoint-Spam-Details": "rule=outbound_notspam policy=outbound score=0\n priorityscore=1501 adultscore=0 lowpriorityscore=0 malwarescore=0\n suspectscore=0 spamscore=0 clxscore=1015 phishscore=0 bulkscore=0\n impostorscore=0 classifier=typeunknown authscore=0 authtc= authcc=\n route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2604200000\n definitions=main-2605040087", "X-Spam-Status": "No, score=-0.7 required=3.0 tests=DKIM_SIGNED,DKIM_VALID,\n\tRCVD_IN_DNSWL_LOW,RCVD_IN_MSPIKE_H4,RCVD_IN_MSPIKE_WL,SPF_HELO_NONE,\n\tSPF_PASS autolearn=disabled version=4.0.1 OzLabs 8", "X-Spam-Checker-Version": "SpamAssassin 4.0.1 (2024-03-25) on lists.ozlabs.org" }, "content": "The hugepage-mremap selftest uses a default mapping size of 10MB\nwhen no argument is provided. This size is not guaranteed to be\naligned to the system hugepage size, which can cause munmap() to fail\nand mremap() to succeed where a failure is expected.\n\nAlign the mapping length to the runtime hugepage size using\ndefault_huge_page_size() to ensure the mapping is properly\naligned. Also handle the case where\ndefault_huge_page_size() returns 0 by skipping the test.\n\nBefore patch:\n running ./hugepage-mremap\n ------------------------------\n TAP version 13\n 1..1\n Map haddr: Returned address is 0x7eaa40000000\n Map daddr: Returned address is 0x7daa40000000\n Map vaddr: Returned address is 0x7faa40000000\n Address returned by mmap() = 0x7fffaa600000\n Mremap: Returned address is 0x7faa40000000\n First hex is 0\n First hex is 3020100\n Bail out! mremap: Expected failure, but call succeeded\n Planned tests != run tests (1 != 0)\n Totals: pass:0 fail:0 xfail:0 xpass:0 skip:0 error:0\n [FAIL]\nnot ok 1 hugepage-mremap # exit=1\n\nAfter patch:\n running ./hugepage-mremap\n -------------------------\n TAP version 13\n 1..1\n Map haddr: Returned address is 0x7eaa40000000\n Map daddr: Returned address is 0x7daa40000000\n Map vaddr: Returned address is 0x7faa40000000\n Address returned by mmap() = 0x7fff13000000\n Mremap: Returned address is 0x7faa40000000\n First hex is 0\n First hex is 3020100\n ok 1 Read same data\n Totals: pass:1 fail:0 xfail:0 xpass:0 skip:0 error:0\n [PASS]\nok 1 hugepage-mremap\n\nFixes: f77a286de48c (\"mm, hugepages: make memory size variable in hugepage-mremap selftest\")\nReviewed-by: Zi Yan <ziy@nvidia.com>\nTested-by: Venkat Rao Bagalkote <venkat88@linux.ibm.com>\nSigned-off-by: Sayali Patil <sayalip@linux.ibm.com>\n---\n tools/testing/selftests/mm/hugepage-mremap.c | 10 ++++++++++\n 1 file changed, 10 insertions(+)", "diff": "diff --git a/tools/testing/selftests/mm/hugepage-mremap.c b/tools/testing/selftests/mm/hugepage-mremap.c\nindex b8f7d92e5a35..f66e4d806477 100644\n--- a/tools/testing/selftests/mm/hugepage-mremap.c\n+++ b/tools/testing/selftests/mm/hugepage-mremap.c\n@@ -32,6 +32,7 @@\n \n #define PROTECTION (PROT_READ | PROT_WRITE | PROT_EXEC)\n #define FLAGS (MAP_SHARED | MAP_ANONYMOUS)\n+#define ALIGN(x, a) (((x) + ((a) - 1)) & ~((a) - 1))\n \n static void check_bytes(char *addr)\n {\n@@ -110,6 +111,7 @@ int main(int argc, char *argv[])\n {\n \tsize_t length = 0;\n \tint ret = 0, fd;\n+\tsize_t hpage_size;\n \n \tksft_print_header();\n \tksft_set_plan(1);\n@@ -126,6 +128,14 @@ int main(int argc, char *argv[])\n \t\tlength = DEFAULT_LENGTH_MB;\n \n \tlength = MB_TO_BYTES(length);\n+\n+\thpage_size = default_huge_page_size();\n+\tif (!hpage_size)\n+\t\tksft_exit_skip(\"Unable to determine huge page size\\n\");\n+\n+\t/* Ensure length is hugepage aligned */\n+\tlength = ALIGN(length, hpage_size);\n+\n \tfd = memfd_create(argv[0], MFD_HUGETLB);\n \tif (fd < 0)\n \t\tksft_exit_fail_msg(\"Open failed: %s\\n\", strerror(errno));\n", "prefixes": [ "v6", "08/14" ] }