From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 8F392F532EA for ; Tue, 24 Mar 2026 08:00:47 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 015DD6B0089; Tue, 24 Mar 2026 04:00:47 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id F082E6B008C; Tue, 24 Mar 2026 04:00:46 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id DFC256B0089; Tue, 24 Mar 2026 04:00:46 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0012.hostedemail.com [216.40.44.12]) by kanga.kvack.org (Postfix) with ESMTP id CBDFE6B0089 for ; Tue, 24 Mar 2026 04:00:46 -0400 (EDT) Received: from smtpin22.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay05.hostedemail.com (Postfix) with ESMTP id 8D96F5F8AB for ; Tue, 24 Mar 2026 08:00:46 +0000 (UTC) X-FDA: 84580210092.22.1C0821D Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.20]) by imf11.hostedemail.com (Postfix) with ESMTP id BE69340012 for ; Tue, 24 Mar 2026 08:00:43 +0000 (UTC) Authentication-Results: imf11.hostedemail.com; dkim=pass header.d=intel.com header.s=Intel header.b=CutYbLr1; dmarc=pass (policy=none) header.from=intel.com; spf=pass (imf11.hostedemail.com: domain of lkp@intel.com designates 198.175.65.20 as permitted sender) smtp.mailfrom=lkp@intel.com ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1774339244; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=hO3RoDkfaX40pOPnDHKWF3PTrk31AlPWS01n3tsNc4s=; b=VFY9awyhlXAnQuxapdZmIhqhIi2owwqxqsD/4lek1aUnidxooB1abTFlEFXwV7TE24EUh8 7b3Jq8KhBcQocX3N1Ka1Y0DhdFvYlTbJA12k++bTLk209gDvZ//F5SavpRCmQuisgW6OZ8 cwj0DZZ9uQMIAoFhJlks0sGhTMwv+eA= ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1774339244; a=rsa-sha256; cv=none; b=vYLWJmRPH3hGVU0jfO0WZXeBBU3Wqg+LeDFZaRKt/CahpbHNeujUzwi1636sT7rx0jmao6 0PtiSIPs5q/kG/4Cs6Xoqzf4ICKN1ARgSYfCnco8TujshEthrre6bF+PGFiBuQuxeQBSto EFAbyFGADSMfNOPpt52ORViDo2EXwZA= ARC-Authentication-Results: i=1; imf11.hostedemail.com; dkim=pass header.d=intel.com header.s=Intel header.b=CutYbLr1; dmarc=pass (policy=none) header.from=intel.com; spf=pass (imf11.hostedemail.com: domain of lkp@intel.com designates 198.175.65.20 as permitted sender) smtp.mailfrom=lkp@intel.com DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1774339244; x=1805875244; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=ocoi7pvGmuvDZoSOfl5t4+tndabVbyrA9wr21MqUqZY=; b=CutYbLr1YUu0SJ9QRshYpp4CJBhtpxG/37PhFDhJRfcoav70Yy6NZ/ZN W10mDixiR8GdT25mccG+t4YBNCc+caqclvqDOE+OCwTh1zrjGw9sydGTN g7NMFVKYpPvRuNxgKysZpNGMStF8n5NkZH1UILNMANDYfQLrSU5Sqcjjf lKj4/PsL7I4FArVntAIWxOOm6RZiJS+3geSbpgLpGrL5BTnceknMfpWbM bTTrearfMM3NpZ+veBn5SbuguLG2bTFM0lA55K+P5cw0iG0SnBCq0dSUR W1XYLGX9TSJxKBWGcHZ3zVu94byOw39wSr5SrlCYsg9RS+v83xEh4SdBB w==; X-CSE-ConnectionGUID: RRnsB8GEQiSw9Yz5DTUoTg== X-CSE-MsgGUID: /rldCINHTo+2K4qPx7MMpA== X-IronPort-AV: E=McAfee;i="6800,10657,11738"; a="75060891" X-IronPort-AV: E=Sophos;i="6.23,138,1770624000"; d="scan'208";a="75060891" Received: from orviesa001.jf.intel.com ([10.64.159.141]) by orvoesa112.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 24 Mar 2026 01:00:42 -0700 X-CSE-ConnectionGUID: fFzXhO+xS3SDWPlVar7ADQ== X-CSE-MsgGUID: Udc32wB4RE6CAt6sSsNiWw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.23,138,1770624000"; d="scan'208";a="262202678" Received: from lkp-server01.sh.intel.com (HELO 3905d212be1b) ([10.239.97.150]) by orviesa001.jf.intel.com with ESMTP; 24 Mar 2026 01:00:35 -0700 Received: from kbuild by 3905d212be1b with local (Exim 4.98.2) (envelope-from ) id 1w4wgh-000000004CD-2iTp; Tue, 24 Mar 2026 08:00:31 +0000 Date: Tue, 24 Mar 2026 16:00:13 +0800 From: kernel test robot To: Brendan Jackman , Borislav Petkov , Dave Hansen , Peter Zijlstra , Andrew Morton , David Hildenbrand , Vlastimil Babka , Wei Xu , Johannes Weiner , Zi Yan , Lorenzo Stoakes Cc: oe-kbuild-all@lists.linux.dev, Linux Memory Management List , linux-kernel@vger.kernel.org, x86@kernel.org, rppt@kernel.org, Sumit Garg , derkling@google.com, reijiw@google.com, Will Deacon , rientjes@google.com, "Kalyazin, Nikita" , patrick.roy@linux.dev, "Itazuri, Takahiro" , Andy Lutomirski , David Kaplan , Thomas Gleixner , Brendan Jackman , Yosry Ahmed Subject: Re: [PATCH v2 07/22] mm: KUnit tests for the mermap Message-ID: <202603241512.3kG43FzT-lkp@intel.com> References: <20260320-page_alloc-unmapped-v2-7-28bf1bd54f41@google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260320-page_alloc-unmapped-v2-7-28bf1bd54f41@google.com> X-Rspamd-Queue-Id: BE69340012 X-Stat-Signature: hr3w8f5caog15p19bfysg15rm49o7u6r X-Rspam-User: X-Rspamd-Server: rspam02 X-HE-Tag: 1774339243-54283 X-HE-Meta: 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 Hi/eJ0xn cujT3apt85Ys2mgpeBH/UyGKe2Vt+QiukOuDzdIt7Q2QVhbFGzN3c0T228cj9cRjIj/aSr9xU97RTFutGHyooionkbyt2FGAdBsJN6+Rqicov5CMziW592pAnHOFriLMMKZRkYA8dw3nQ3Jlp3jpDIBDB7lleEBWI2uvuUDdz1Z7y278srQX6xcNJo0atvCs9sspMAvHRqZJijjbKOo+1knWNNii4+GmvOW13G+hSFiiYCZRI1itY+NsvNHlA6beHFGFdXn6pLZa+/DpIYGXEvpuJ4oPVRp0bOONrk9mvpGEZPCaxzpleysa8iz257KVgGc9urxQM/fdSSAA/CbCoBstr8WCwj4kvNrbJ Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: Hi Brendan, kernel test robot noticed the following build warnings: [auto build test WARNING on b5d083a3ed1e2798396d5e491432e887da8d4a06] url: https://github.com/intel-lab-lkp/linux/commits/Brendan-Jackman/x86-mm-split-out-preallocate_sub_pgd/20260321-042521 base: b5d083a3ed1e2798396d5e491432e887da8d4a06 patch link: https://lore.kernel.org/r/20260320-page_alloc-unmapped-v2-7-28bf1bd54f41%40google.com patch subject: [PATCH v2 07/22] mm: KUnit tests for the mermap config: x86_64-randconfig-101-20260324 (https://download.01.org/0day-ci/archive/20260324/202603241512.3kG43FzT-lkp@intel.com/config) compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot | Closes: https://lore.kernel.org/oe-kbuild-all/202603241512.3kG43FzT-lkp@intel.com/ cocci warnings: (new ones prefixed by >>) >> mm/tests/mermap_kunit.c:156:2-3: Unneeded semicolon vim +156 mm/tests/mermap_kunit.c 131 132 static void test_multiple_allocs(struct kunit *test) 133 { 134 struct __mermap_put_args *argss[NR_NORMAL_ALLOCS] = { }; 135 struct page *pages[NR_NORMAL_ALLOCS + 1]; 136 struct mermap_alloc *reserved_alloc; 137 struct mm_struct *mm = get_mm(test); 138 int magic = 0xE4A4; 139 140 for (int i = 0; i < ARRAY_SIZE(pages); i++) { 141 pages[i] = alloc_page_wrapper(test, GFP_KERNEL); 142 WRITE_ONCE(*(int *)page_to_virt(pages[i]), magic + i); 143 } 144 145 for (int i = 0; i < ARRAY_SIZE(argss); i++) { 146 unsigned long base = mermap_cpu_base(raw_smp_processor_id()); 147 unsigned long end = mermap_cpu_end(raw_smp_processor_id()); 148 unsigned long addr; 149 150 argss[i] = __mermap_get_wrapper(test, mm, pages[i], PAGE_SIZE, PAGE_KERNEL); 151 KUNIT_ASSERT_NOT_NULL_MSG(test, argss[i], "alloc %d failed", i); 152 153 addr = (unsigned long) mermap_addr(argss[i]->alloc); 154 KUNIT_EXPECT_GE_MSG(test, addr, base, "alloc %d out of range", i); 155 KUNIT_EXPECT_LT_MSG(test, addr, end, "alloc %d out of range", i); > 156 }; 157 158 /* 159 * Read through the mappings to try and detect if they point to the 160 * pages we wrote earlier. 161 */ 162 kthread_use_mm(mm); 163 for (int i = 0; i < ARRAY_SIZE(pages) - 1; i++) { 164 int *ptr = (int *)mermap_addr(argss[i]->alloc); 165 166 KUNIT_EXPECT_EQ(test, *ptr, magic + i); 167 } 168 169 /* Run out of alloc structures, only reserved allocs should succeed now. */ 170 KUNIT_ASSERT_NULL(test, __mermap_get(mm, pages[NR_NORMAL_ALLOCS], 171 PAGE_SIZE, PAGE_KERNEL, false)); 172 preempt_disable(); 173 reserved_alloc = __mermap_get(mm, pages[NR_NORMAL_ALLOCS], 174 PAGE_SIZE, PAGE_KERNEL, true); 175 KUNIT_EXPECT_NOT_NULL(test, reserved_alloc); 176 /* Also check if this mapping seems correct*/ 177 if (reserved_alloc) { 178 int *ptr = (int *)mermap_addr(reserved_alloc); 179 180 KUNIT_EXPECT_EQ(test, *ptr, magic + NR_NORMAL_ALLOCS); 181 182 mermap_put(reserved_alloc); 183 } 184 preempt_enable(); 185 186 kthread_unuse_mm(mm); 187 } 188 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki