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X-IronPort-AV: E=McAfee;i="6600,9927,10747"; a="362581721" X-IronPort-AV: E=Sophos;i="6.00,259,1681196400"; d="scan'208";a="362581721" 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> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20230620235726.3873043-3-surenb@google.com> X-Rspam-User: X-Rspamd-Server: rspam06 X-Rspamd-Queue-Id: 5B3688000A X-Stat-Signature: hjc71s75ohwqc6ne6u38gwnqwxdssxkh X-HE-Tag: 1687313755-114266 X-HE-Meta: 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 /rEWU+Eu I4O30/vZkzEwjpejyPBMi6RYOalAmLSA7jOopN+DZZMCTf4gJSPfGSv+lV28TZbk0gwsSAz9WBu0R5dXZinPv34LKSFCQ4vKwxcfM1kl1MpSVsA9yd18u60jQw6Yx6khTBDEdIwwWl0uDN/PvanDaRPK831FvOrmXTHtpCNBJI7Xi+s0HBPUU8ai53qLykg8+fS78VIrILJKdV45R7bDiLzqUY31zDQmzuyGlAQMMYZPTLV47chiq8UPBL5qI+hxdj6Jg/X6erQTHnjJNdNkyAdS8NY8tIn5DbDY6671Hu2OZeOJX3y7yj3us5e/nZfiBKS3f9bFyCfLL/wc= X-Bogosity: Ham, tests=bogofilter, spamicity=0.000001, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: 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