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]) by smtp.lore.kernel.org (Postfix) with ESMTP id 08383C433F5 for ; Mon, 11 Apr 2022 01:54:49 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 6DA266B0072; Sun, 10 Apr 2022 21:54:49 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 68A7E6B0073; Sun, 10 Apr 2022 21:54:49 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 52AEF6B0074; Sun, 10 Apr 2022 21:54:49 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (relay.a.hostedemail.com [64.99.140.24]) by kanga.kvack.org (Postfix) with ESMTP id 44CF96B0072 for ; Sun, 10 Apr 2022 21:54:49 -0400 (EDT) Received: from smtpin20.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay02.hostedemail.com (Postfix) with ESMTP id 1446E239B9 for ; Mon, 11 Apr 2022 01:54:49 +0000 (UTC) X-FDA: 79342929498.20.2847052 Received: from szxga01-in.huawei.com (szxga01-in.huawei.com [45.249.212.187]) by imf23.hostedemail.com (Postfix) with ESMTP id CFD10140003 for ; Mon, 11 Apr 2022 01:54:47 +0000 (UTC) Received: from canpemm500002.china.huawei.com (unknown [172.30.72.53]) by szxga01-in.huawei.com (SkyGuard) with ESMTP id 4KcBh72rkYzgYbN; Mon, 11 Apr 2022 09:52:55 +0800 (CST) Received: from [10.174.177.76] (10.174.177.76) by canpemm500002.china.huawei.com (7.192.104.244) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.24; Mon, 11 Apr 2022 09:54:42 +0800 Subject: Re: [PATCH 4/4] mm/migration: fix potential pte_unmap on an not mapped pte To: kernel test robot , CC: , , , , , , , , , , , , , , , , , , , References: <20220409073846.22286-5-linmiaohe@huawei.com> <202204091914.psVO4TrI-lkp@intel.com> From: Miaohe Lin Message-ID: <66caf56c-e966-9905-84b8-2072d93dd27b@huawei.com> Date: Mon, 11 Apr 2022 09:54:41 +0800 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101 Thunderbird/78.6.0 MIME-Version: 1.0 In-Reply-To: <202204091914.psVO4TrI-lkp@intel.com> Content-Type: text/plain; charset="utf-8" Content-Language: en-US Content-Transfer-Encoding: 7bit X-Originating-IP: [10.174.177.76] X-ClientProxiedBy: dggems705-chm.china.huawei.com (10.3.19.182) To canpemm500002.china.huawei.com (7.192.104.244) X-CFilter-Loop: Reflected X-Rspamd-Server: rspam06 X-Rspamd-Queue-Id: CFD10140003 X-Rspam-User: Authentication-Results: imf23.hostedemail.com; dkim=none; dmarc=pass (policy=quarantine) header.from=huawei.com; spf=pass (imf23.hostedemail.com: domain of linmiaohe@huawei.com designates 45.249.212.187 as permitted sender) smtp.mailfrom=linmiaohe@huawei.com X-Stat-Signature: wbsdce69cmz59o8d69z4dmi1wf94owzz X-HE-Tag: 1649642087-121244 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 2022/4/9 19:38, kernel test robot wrote: > Hi Miaohe, > > Thank you for the patch! Yet something to improve: > > [auto build test ERROR on hnaz-mm/master] > [also build test ERROR on linus/master v5.18-rc1 next-20220408] > [cannot apply to linux/master] > [If your patch is applied to the wrong git tree, kindly drop us a note. > And when submitting patch, we suggest to use '--base' as documented in > https://git-scm.com/docs/git-format-patch] > > url: https://github.com/intel-lab-lkp/linux/commits/Miaohe-Lin/A-few-cleanup-and-fixup-patches-for-migration/20220409-154028 > base: https://github.com/hnaz/linux-mm master > config: powerpc64-randconfig-r015-20220408 (https://download.01.org/0day-ci/archive/20220409/202204091914.psVO4TrI-lkp@intel.com/config) > compiler: powerpc64-linux-gcc (GCC) 11.2.0 > reproduce (this is a W=1 build): > wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross > chmod +x ~/bin/make.cross > # https://github.com/intel-lab-lkp/linux/commit/73a982570cc62313c55cc5cbc2dd7acf40601474 > git remote add linux-review https://github.com/intel-lab-lkp/linux > git fetch --no-tags linux-review Miaohe-Lin/A-few-cleanup-and-fixup-patches-for-migration/20220409-154028 > git checkout 73a982570cc62313c55cc5cbc2dd7acf40601474 > # save the config file to linux build tree > mkdir build_dir > COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=powerpc SHELL=/bin/bash arch/powerpc/mm/ > > If you fix the issue, kindly add following tag as appropriate > Reported-by: kernel test robot Oh, powerpc variant is left undone. Will fix it. Thanks! > > All errors (new ones prefixed by >>): > > arch/powerpc/mm/hugetlbpage.c: In function 'follow_huge_pd': >>> arch/powerpc/mm/hugetlbpage.c:537:25: error: too few arguments to function '__migration_entry_wait' > 537 | __migration_entry_wait(mm, ptep, ptl); > | ^~~~~~~~~~~~~~~~~~~~~~ > In file included from arch/powerpc/mm/hugetlbpage.c:20: > include/linux/swapops.h:233:13: note: declared here > 233 | extern void __migration_entry_wait(struct mm_struct *mm, pte_t *ptep, > | ^~~~~~~~~~~~~~~~~~~~~~ > > > vim +/__migration_entry_wait +537 arch/powerpc/mm/hugetlbpage.c > > ^1da177e4c3f41 arch/ppc64/mm/hugetlbpage.c Linus Torvalds 2005-04-16 507 > 50791e6de0b5f2 arch/powerpc/mm/hugetlbpage.c Aneesh Kumar K.V 2017-07-06 508 struct page *follow_huge_pd(struct vm_area_struct *vma, > 50791e6de0b5f2 arch/powerpc/mm/hugetlbpage.c Aneesh Kumar K.V 2017-07-06 509 unsigned long address, hugepd_t hpd, > 50791e6de0b5f2 arch/powerpc/mm/hugetlbpage.c Aneesh Kumar K.V 2017-07-06 510 int flags, int pdshift) > 50791e6de0b5f2 arch/powerpc/mm/hugetlbpage.c Aneesh Kumar K.V 2017-07-06 511 { > 50791e6de0b5f2 arch/powerpc/mm/hugetlbpage.c Aneesh Kumar K.V 2017-07-06 512 pte_t *ptep; > 50791e6de0b5f2 arch/powerpc/mm/hugetlbpage.c Aneesh Kumar K.V 2017-07-06 513 spinlock_t *ptl; > 50791e6de0b5f2 arch/powerpc/mm/hugetlbpage.c Aneesh Kumar K.V 2017-07-06 514 struct page *page = NULL; > 50791e6de0b5f2 arch/powerpc/mm/hugetlbpage.c Aneesh Kumar K.V 2017-07-06 515 unsigned long mask; > 50791e6de0b5f2 arch/powerpc/mm/hugetlbpage.c Aneesh Kumar K.V 2017-07-06 516 int shift = hugepd_shift(hpd); > 50791e6de0b5f2 arch/powerpc/mm/hugetlbpage.c Aneesh Kumar K.V 2017-07-06 517 struct mm_struct *mm = vma->vm_mm; > 50791e6de0b5f2 arch/powerpc/mm/hugetlbpage.c Aneesh Kumar K.V 2017-07-06 518 > 50791e6de0b5f2 arch/powerpc/mm/hugetlbpage.c Aneesh Kumar K.V 2017-07-06 519 retry: > ed515b6898c367 arch/powerpc/mm/hugetlbpage.c Aneesh Kumar K.V 2018-06-01 520 /* > ed515b6898c367 arch/powerpc/mm/hugetlbpage.c Aneesh Kumar K.V 2018-06-01 521 * hugepage directory entries are protected by mm->page_table_lock > ed515b6898c367 arch/powerpc/mm/hugetlbpage.c Aneesh Kumar K.V 2018-06-01 522 * Use this instead of huge_pte_lockptr > ed515b6898c367 arch/powerpc/mm/hugetlbpage.c Aneesh Kumar K.V 2018-06-01 523 */ > 50791e6de0b5f2 arch/powerpc/mm/hugetlbpage.c Aneesh Kumar K.V 2017-07-06 524 ptl = &mm->page_table_lock; > 50791e6de0b5f2 arch/powerpc/mm/hugetlbpage.c Aneesh Kumar K.V 2017-07-06 525 spin_lock(ptl); > 50791e6de0b5f2 arch/powerpc/mm/hugetlbpage.c Aneesh Kumar K.V 2017-07-06 526 > 50791e6de0b5f2 arch/powerpc/mm/hugetlbpage.c Aneesh Kumar K.V 2017-07-06 527 ptep = hugepte_offset(hpd, address, pdshift); > 50791e6de0b5f2 arch/powerpc/mm/hugetlbpage.c Aneesh Kumar K.V 2017-07-06 528 if (pte_present(*ptep)) { > 50791e6de0b5f2 arch/powerpc/mm/hugetlbpage.c Aneesh Kumar K.V 2017-07-06 529 mask = (1UL << shift) - 1; > 50791e6de0b5f2 arch/powerpc/mm/hugetlbpage.c Aneesh Kumar K.V 2017-07-06 530 page = pte_page(*ptep); > 50791e6de0b5f2 arch/powerpc/mm/hugetlbpage.c Aneesh Kumar K.V 2017-07-06 531 page += ((address & mask) >> PAGE_SHIFT); > 50791e6de0b5f2 arch/powerpc/mm/hugetlbpage.c Aneesh Kumar K.V 2017-07-06 532 if (flags & FOLL_GET) > 50791e6de0b5f2 arch/powerpc/mm/hugetlbpage.c Aneesh Kumar K.V 2017-07-06 533 get_page(page); > 50791e6de0b5f2 arch/powerpc/mm/hugetlbpage.c Aneesh Kumar K.V 2017-07-06 534 } else { > 50791e6de0b5f2 arch/powerpc/mm/hugetlbpage.c Aneesh Kumar K.V 2017-07-06 535 if (is_hugetlb_entry_migration(*ptep)) { > 50791e6de0b5f2 arch/powerpc/mm/hugetlbpage.c Aneesh Kumar K.V 2017-07-06 536 spin_unlock(ptl); > 50791e6de0b5f2 arch/powerpc/mm/hugetlbpage.c Aneesh Kumar K.V 2017-07-06 @537 __migration_entry_wait(mm, ptep, ptl); > 50791e6de0b5f2 arch/powerpc/mm/hugetlbpage.c Aneesh Kumar K.V 2017-07-06 538 goto retry; > 50791e6de0b5f2 arch/powerpc/mm/hugetlbpage.c Aneesh Kumar K.V 2017-07-06 539 } > 50791e6de0b5f2 arch/powerpc/mm/hugetlbpage.c Aneesh Kumar K.V 2017-07-06 540 } > 50791e6de0b5f2 arch/powerpc/mm/hugetlbpage.c Aneesh Kumar K.V 2017-07-06 541 spin_unlock(ptl); > 50791e6de0b5f2 arch/powerpc/mm/hugetlbpage.c Aneesh Kumar K.V 2017-07-06 542 return page; > 50791e6de0b5f2 arch/powerpc/mm/hugetlbpage.c Aneesh Kumar K.V 2017-07-06 543 } > 50791e6de0b5f2 arch/powerpc/mm/hugetlbpage.c Aneesh Kumar K.V 2017-07-06 544 >