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Biederman" , Sebastian Andrzej Siewior , Andy Lutomirski , Peter Zijlstra , "Liam R. Howlett" , Fenghua Yu , Andrei Vagin , George Prekas Subject: Re: [PATCH 1/9] mm: kmemleak: properly disable task stack scanning Message-ID: <202302012338.O1vnQ1Ar-lkp@intel.com> References: <20230123170419.7292-2-george@enfabrica.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20230123170419.7292-2-george@enfabrica.net> X-Rspam-User: X-Rspamd-Server: rspam02 X-Rspamd-Queue-Id: C550D18001D X-Stat-Signature: 8b9bdiimn1wszxuoxdrbbpnm3gec8g75 X-HE-Tag: 1675265977-978778 X-HE-Meta: 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 N+X2rqxX 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 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 George, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on vbabka-slab/for-next] [also build test WARNING on linus/master v6.2-rc6] [cannot apply to akpm-mm/mm-everything] [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/George-Prekas/mm-kmemleak-properly-disable-task-stack-scanning/20230124-010911 base: git://git.kernel.org/pub/scm/linux/kernel/git/vbabka/slab.git for-next patch link: https://lore.kernel.org/r/20230123170419.7292-2-george%40enfabrica.net patch subject: [PATCH 1/9] mm: kmemleak: properly disable task stack scanning config: s390-randconfig-s051-20230129 (https://download.01.org/0day-ci/archive/20230201/202302012338.O1vnQ1Ar-lkp@intel.com/config) compiler: s390-linux-gcc (GCC) 12.1.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # apt-get install sparse # sparse version: v0.6.4-39-gce1a6720-dirty # https://github.com/intel-lab-lkp/linux/commit/f0d9df4305849ecea4402bc614cadb0dd357da77 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review George-Prekas/mm-kmemleak-properly-disable-task-stack-scanning/20230124-010911 git checkout f0d9df4305849ecea4402bc614cadb0dd357da77 # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=s390 olddefconfig COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=s390 SHELL=/bin/bash If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot sparse warnings: (new ones prefixed by >>) >> mm/kmemleak.c:1244:46: sparse: sparse: incorrect type in argument 1 (different base types) @@ expected unsigned long ptr @@ got void const *ptr @@ mm/kmemleak.c:1244:46: sparse: expected unsigned long ptr mm/kmemleak.c:1244:46: sparse: got void const *ptr mm/kmemleak.c:1772:13: sparse: sparse: context imbalance in 'kmemleak_seq_start' - different lock contexts for basic block mm/kmemleak.c: note: in included file (through include/linux/rculist.h, include/linux/sched/signal.h): include/linux/rcupdate.h:795:9: sparse: sparse: context imbalance in 'kmemleak_seq_stop' - unexpected unlock vim +1244 mm/kmemleak.c 1233 1234 /** 1235 * kmemleak_mark_stack - mark the allocated object as a kernel stack 1236 * 1237 * @ptr: pointer to beginning of the object 1238 */ 1239 void __ref kmemleak_mark_stack(const void *ptr) 1240 { 1241 struct kmemleak_object *object; 1242 1243 if (kmemleak_enabled && ptr && !IS_ERR(ptr)) { > 1244 object = find_and_get_object(ptr, 0); 1245 if (object) { 1246 object->flags |= OBJECT_STACK; 1247 put_object(object); 1248 } 1249 } 1250 } 1251 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests