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X-IronPort-AV: E=McAfee;i="6600,9927,10687"; a="343633986" X-IronPort-AV: E=Sophos;i="5.99,218,1677571200"; d="scan'208";a="343633986" Received: from orsmga004.jf.intel.com ([10.7.209.38]) by fmsmga102.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 22 Apr 2023 04:19:46 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10687"; a="816704438" X-IronPort-AV: E=Sophos;i="5.99,218,1677571200"; d="scan'208";a="816704438" Received: from lkp-server01.sh.intel.com (HELO b613635ddfff) ([10.239.97.150]) by orsmga004.jf.intel.com with ESMTP; 22 Apr 2023 04:19:43 -0700 Received: from kbuild by b613635ddfff with local (Exim 4.96) (envelope-from ) id 1pqBHK-000hGO-1B; Sat, 22 Apr 2023 11:19:42 +0000 Date: Sat, 22 Apr 2023 19:18:55 +0800 From: kernel test robot To: Oscar Salvador , Andrew Morton Cc: oe-kbuild-all@lists.linux.dev, Linux Memory Management List , linux-kernel@vger.kernel.org, Michal Hocko , Vlastimil Babka , Eric Dumazet , Waiman Long , Suren Baghdasaryan , Marco Elver , Andrey Konovalov , Alexander Potapenko , Oscar Salvador Subject: Re: [PATCH v4 2/3] mm, page_owner: Add page_owner_stacks file to print out only stacks and their counte Message-ID: <202304221906.CKlcyd2r-lkp@intel.com> References: <20230421101415.5734-3-osalvador@suse.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20230421101415.5734-3-osalvador@suse.de> X-Rspam-User: X-Rspamd-Queue-Id: A5AF24000B X-Rspamd-Server: rspam01 X-Stat-Signature: apjwn46xy4xpjgkcjh6oeejt9eyngjsy X-HE-Tag: 1682162388-884796 X-HE-Meta: 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 ZP5XUl+b Z72djK1TYHk9hkR8jAeptZz3cQuIsj4jT2rgsFw+nd2THP+tSLT1vSz5ji3Ky2b2MFVbEtm1/6HmOnL2qOqTfDd2mbFfdo9FImebnV0Adxp/yzeijtd3w8u4iguRDwqpMM8Zl5f04G3hz5o3aX1ftkeA81J7L+Oka2rZPJwp2OT2Ut4R5/mAFMCC49ULX0UoW4jNE7HZgQ6f+oVM2tPzmLOl8rgQTPeA+sOI4vY42ZOgJYpedEB4rwBInZxuS4xG9BGP1Jpn8bM6e1vaV7j0r1toBgYs2+A99TRj27MgGqNHa0d3aPkvkqlSyMCUiujIV2qQMCeX21vxEa0JdV3dtyMIM7RxLPoWxaHRcFPKkx/w3pbSadDN6Y7FgE7IPrvhEvT9JFFHvmiCIEjmt6mjanI//0Kgl+03XB6Ua 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: Hi Oscar, kernel test robot noticed the following build warnings: [auto build test WARNING on linus/master] [also build test WARNING on v6.3-rc7] [cannot apply to akpm-mm/mm-everything next-20230421] [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#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Oscar-Salvador/lib-stackdepot-Add-a-refcount-field-in-stack_record/20230421-181709 base: linus/master patch link: https://lore.kernel.org/r/20230421101415.5734-3-osalvador%40suse.de patch subject: [PATCH v4 2/3] mm, page_owner: Add page_owner_stacks file to print out only stacks and their counte config: x86_64-randconfig-m001 (https://download.01.org/0day-ci/archive/20230422/202304221906.CKlcyd2r-lkp@intel.com/config) compiler: gcc-11 (Debian 11.3.0-8) 11.3.0 If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot | Link: https://lore.kernel.org/oe-kbuild-all/202304221906.CKlcyd2r-lkp@intel.com/ smatch warnings: lib/stackdepot.c:558 stack_print() warn: unsigned 'stack->size' is never less than zero. vim +558 lib/stackdepot.c 551 552 int stack_print(struct seq_file *m, void *v) 553 { 554 char *buf; 555 int ret = 0; 556 struct stack_record *stack =v; 557 > 558 if (!stack->size || stack->size < 0 || 559 stack->size > PAGE_SIZE || stack->handle.valid != 1 || 560 refcount_read(&stack->count) < 1) 561 return 0; 562 563 buf = kzalloc(PAGE_SIZE, GFP_KERNEL); 564 ret += stack_trace_snprint(buf, PAGE_SIZE, stack->entries, stack->size, 0); 565 scnprintf(buf + ret, PAGE_SIZE - ret, "stack count: %d\n\n", 566 refcount_read(&stack->count)); 567 seq_printf(m, buf); 568 seq_puts(m, "\n\n"); 569 kfree(buf); 570 571 return 0; 572 } 573 #endif 574 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests