From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mga09.intel.com (mga09.intel.com [134.134.136.24]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id B5F3D15B1 for ; Wed, 21 Jun 2023 02:16:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1687313761; x=1718849761; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=qScSC4bBlYqqRzg1M8A/BBNUlIY65qfnfx194lP9nP0=; b=OQOgFDKquc8Wk1wUxUo1n0gO9zrgeri5MDmAJq4ujk2NfuMNrlRbe10+ vOSkYBGFzbvNtG6qfddNbOSz1DcyVw9UNyS70YDu/tJj8WUbSXTd+mf+a MbmPtKa86htdL357/1xMjSrWQHnGwy7MXRHsE0TrEosa62WWHZTalYe9a j5KwHUvX4E8oLNnqoBbT5EdLu2j+eZ+5jANLBiGdDBmOMqcmbiR7OLXBl AXYvnf0NipEa7sTEXhrqrDeoBnYULOTEG8sEIB06hMWcM9yyWh2Ual64o c3jMV1EzcKFYRDltMwLPsLa9SMlwPazxAwOQAy3XwaQH2RyXyUw/0XLoQ g==; X-IronPort-AV: E=McAfee;i="6600,9927,10747"; a="362581725" X-IronPort-AV: E=Sophos;i="6.00,259,1681196400"; d="scan'208";a="362581725" Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by orsmga102.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 20 Jun 2023 19:15:53 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10747"; a="858802797" X-IronPort-AV: E=Sophos;i="6.00,259,1681196400"; d="scan'208";a="858802797" Received: from lkp-server01.sh.intel.com (HELO 783282924a45) ([10.239.97.150]) by fmsmga001.fm.intel.com with ESMTP; 20 Jun 2023 19:15:50 -0700 Received: from kbuild by 783282924a45 with local (Exim 4.96) (envelope-from ) id 1qBnNt-0006Rs-2L; Wed, 21 Jun 2023 02:15:49 +0000 Date: Wed, 21 Jun 2023 10:15:06 +0800 From: kernel test robot To: Suren Baghdasaryan , akpm@linux-foundation.org Cc: oe-kbuild-all@lists.linux.dev, willy@infradead.org, torvalds@linuxfoundation.org, vegard.nossum@oracle.com, mpe@ellerman.id.au, Liam.Howlett@oracle.com, lrh2000@pku.edu.cn, mgorman@suse.de, linux-mm@kvack.org, linux-kernel@vger.kernel.org, kernel-team@android.com, surenb@google.com Subject: Re: [PATCH 3/3] mm: check for VMA being detached before destroying it Message-ID: <202306211007.hQoEsMrP-lkp@intel.com> References: <20230620235726.3873043-3-surenb@google.com> Precedence: bulk X-Mailing-List: oe-kbuild-all@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20230620235726.3873043-3-surenb@google.com> Hi Suren, kernel test robot noticed the following build errors: [auto build test ERROR on akpm-mm/mm-everything] url: https://github.com/intel-lab-lkp/linux/commits/Suren-Baghdasaryan/mm-change-vma_start_read-to-fail-to-lock-a-detached-VMA/20230621-075833 base: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything patch link: https://lore.kernel.org/r/20230620235726.3873043-3-surenb%40google.com patch subject: [PATCH 3/3] mm: check for VMA being detached before destroying it config: alpha-allyesconfig (https://download.01.org/0day-ci/archive/20230621/202306211007.hQoEsMrP-lkp@intel.com/config) compiler: alpha-linux-gcc (GCC) 12.3.0 reproduce: (https://download.01.org/0day-ci/archive/20230621/202306211007.hQoEsMrP-lkp@intel.com/reproduce) 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/202306211007.hQoEsMrP-lkp@intel.com/ All errors (new ones prefixed by >>): scripts/genksyms/parse.y: warning: 9 shift/reduce conflicts [-Wconflicts-sr] scripts/genksyms/parse.y: warning: 5 reduce/reduce conflicts [-Wconflicts-rr] scripts/genksyms/parse.y: note: rerun with option '-Wcounterexamples' to generate conflict counterexamples In file included from include/linux/pid_namespace.h:7, from include/linux/ptrace.h:10, from arch/alpha/kernel/asm-offsets.c:11: include/linux/mm.h: In function 'vma_init': >> include/linux/mm.h:753:12: error: 'struct vm_area_struct' has no member named 'detached' 753 | vma->detached = true; | ^~ arch/alpha/kernel/asm-offsets.c: At top level: arch/alpha/kernel/asm-offsets.c:15:6: warning: no previous prototype for 'foo' [-Wmissing-prototypes] 15 | void foo(void) | ^~~ make[2]: *** [scripts/Makefile.build:114: arch/alpha/kernel/asm-offsets.s] Error 1 make[2]: Target 'prepare' not remade because of errors. make[1]: *** [Makefile:1287: prepare0] Error 2 make[1]: Target 'prepare' not remade because of errors. make: *** [Makefile:226: __sub-make] Error 2 make: Target 'prepare' not remade because of errors. vim +753 include/linux/mm.h 740 741 /* 742 * WARNING: vma_init does not initialize vma->vm_lock. 743 * Use vm_area_alloc()/vm_area_free() if vma needs locking. 744 */ 745 static inline void vma_init(struct vm_area_struct *vma, struct mm_struct *mm) 746 { 747 static const struct vm_operations_struct dummy_vm_ops = {}; 748 749 memset(vma, 0, sizeof(*vma)); 750 vma->vm_mm = mm; 751 vma->vm_ops = &dummy_vm_ops; 752 INIT_LIST_HEAD(&vma->anon_vma_chain); > 753 vma->detached = true; 754 vma_numab_state_init(vma); 755 } 756 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki