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Tue, 24 Feb 2026 14:16:20 -0800 (PST) MIME-Version: 1.0 References: <20260224165250.1322946-1-surenb@google.com> <202602250250.n38q74JK-lkp@intel.com> In-Reply-To: From: Suren Baghdasaryan Date: Tue, 24 Feb 2026 14:16:09 -0800 X-Gm-Features: AaiRm533kGl5au_lU-qDQs1zUoFTWbklJ0-4014AJth8cYkZ1yJ6e5gdW0m9ejI Message-ID: Subject: Re: [PATCH 1/1] mm/slab: mark alloc tags empty for sheafs allocated with __GFP_NO_OBJ_EXT To: kernel test robot Cc: akpm@linux-foundation.org, llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev, vbabka@suse.cz, harry.yoo@oracle.com, 00107082@163.com, cl@gentwo.org, rientjes@google.com, roman.gushchin@linux.dev, linux-mm@kvack.org, linux-kernel@vger.kernel.org Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Rspamd-Server: rspam05 X-Rspam-User: X-Rspamd-Queue-Id: 85A8D80014 X-Stat-Signature: wy693tfjcsa7g1jxyktdsgj378grodmi X-HE-Tag: 1771971382-596948 X-HE-Meta: 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 i2LHau6m L29rY0TyjRmGT1pvk5KJBC54tYAJw8V91p0uNGqKccTGyi6auPZjSIKOm1/FFRf6RDiqmMUeND9zPjwhlqKAfEc8+Ly/Cf3cA7vuhZeXiJ+hvqW8Y4dCtr77hgR7xtrOxnpHGi3qyfY8j633fDae59TmYocKuxonYDZ9e+vLlHJRFL5OtrSy0GaN4+dqprBMicSJkLMmQWIaqxlULVaM3ivGMBUU1eWTNyl4imr/nMLBSnaCdl3B3Jki2d9udF5hTa2uUYY0W2yduNBu01GIzkXGrnIXFSmq2oVg/fJmge6wAj9fzi5Ze0rjtIBWtuhSYtAzXpmIjfRhyk8ZFm/PIILCcFv6VZP6GSr9Rx+L14dSbCMR8KHrlcH2DuFqDbxgSuaYky8nU9bkWLPHE7xYIMk63x6N/jrnq/LxMAlgVtTKJIFkE5EA/V85Uhw== Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Tue, Feb 24, 2026 at 1:14=E2=80=AFPM Suren Baghdasaryan wrote: > > On Tue, Feb 24, 2026 at 10:54=E2=80=AFAM kernel test robot wrote: > > > > Hi Suren, > > > > kernel test robot noticed the following build errors: > > > > [auto build test ERROR on 7dff99b354601dd01829e1511711846e04340a69] > > > > url: https://github.com/intel-lab-lkp/linux/commits/Suren-Baghdasary= an/mm-slab-mark-alloc-tags-empty-for-sheafs-allocated-with-__GFP_NO_OBJ_EXT= /20260225-005422 > > base: 7dff99b354601dd01829e1511711846e04340a69 > > patch link: https://lore.kernel.org/r/20260224165250.1322946-1-suren= b%40google.com > > patch subject: [PATCH 1/1] mm/slab: mark alloc tags empty for sheafs al= located with __GFP_NO_OBJ_EXT > > config: x86_64-allnoconfig (https://download.01.org/0day-ci/archive/202= 60225/202602250250.n38q74JK-lkp@intel.com/config) > > compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87= f0227cb60147a26a1eeb4fb06e3b505e9c7261) > > reproduce (this is a W=3D1 build): (https://download.01.org/0day-ci/arc= hive/20260225/202602250250.n38q74JK-lkp@intel.com/reproduce) > > > > If you fix the issue in a separate patch/commit (i.e. not just a new ve= rsion of > > the same patch/commit), kindly add following tags > > | Reported-by: kernel test robot > > | Closes: https://lore.kernel.org/oe-kbuild-all/202602250250.n38q74JK-l= kp@intel.com/ > > > > All errors (new ones prefixed by >>): > > > > >> mm/slub.c:2787:3: error: call to undeclared function 'mark_objexts_e= mpty'; ISO C99 and later do not support implicit function declarations [-Wi= mplicit-function-declaration] > > 2787 | mark_objexts_empty(sheaf); > > | ^ > > 1 error generated. > > Thanks! In a hurry to post the fix I forgot to update the > mark_objexts_empty() definition for !CONFIG_MEM_ALLOC_PROFILING_DEBUG. > I'll post a fixed version shortly. Fixed version is posted at https://lore.kernel.org/all/20260224221132.1702713-1-surenb@google.com/ > > > > > > > vim +/mark_objexts_empty +2787 mm/slub.c > > > > 2783 > > 2784 static void free_empty_sheaf(struct kmem_cache *s, struct slab_= sheaf *sheaf) > > 2785 { > > 2786 if (s->flags & SLAB_KMALLOC) > > > 2787 mark_objexts_empty(sheaf); > > 2788 > > 2789 kfree(sheaf); > > 2790 > > 2791 stat(s, SHEAF_FREE); > > 2792 } > > 2793 > > > > -- > > 0-DAY CI Kernel Test Service > > https://github.com/intel/lkp-tests/wiki