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Sun, 22 Jun 2025 15:55:05 -0700 (PDT) MIME-Version: 1.0 References: <202506181351.bba867dd-lkp@intel.com> In-Reply-To: From: Suren Baghdasaryan Date: Sun, 22 Jun 2025 15:54:51 -0700 X-Gm-Features: Ac12FXxeU_n5ynTLFvoQ9shhqQWVGywECVI_A3zkfAgBf_JvjzTobm693NEF1_8 Message-ID: Subject: Re: Kernel crash due to alloc_tag_top_users() being called when !mem_profiling_support? To: Uladzislau Rezki Cc: Harry Yoo , kernel test robot , oe-lkp@lists.linux.dev, lkp@intel.com, linux-kernel@vger.kernel.org, Andrew Morton , Baoquan He , Adrian Huang , Christop Hellwig , Mateusz Guzik , linux-mm@kvack.org, Kent Overstreet Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Rspamd-Queue-Id: 97FAE100005 X-Stat-Signature: ksrwjy9p4dce6hb7wz1u471ad583hi3a X-Rspam-User: X-Rspamd-Server: rspam04 X-HE-Tag: 1750632906-718297 X-HE-Meta: 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 7B+uJCyo YNj5s789IGg4UWe/fKhOHMXEu6KW8A9BmOadFRqONelOYDmuVhLPbFfOf/A0zC9eaxVDk/sW0JvN4zJWOWfH0tKq4OEoCaBdvgmqrLFlRIGKOz55WeoqU6Stof8dI3e9hIry5qm7TIzZ9TsrmA9rCZOqpNFDZj+pNk3R4heYa1SN3KctgoaC0IRLbPD0uPwTqVWtea3Cg0Ua52UfH68/FnjBzkn+Je067WI8ItZxrA+FVBSJvjxMBMe71qZBuVn2ZIKGkBdv8fL71/iKr1KWlNPc7iPtv97kJbFhl970XywwVOvxWui9vPOfk+UtWICJCSfc7n38+/yzG5ga6JYFjCLL5aIdEga3BTzrKlmWKmbYWTIGX+Wg3TUB3KuGpF8RjtopvIJdnFDyeNFo0j1vb1X98ad70wgYxzltHKdjT/lL7wr8= 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: List-Subscribe: List-Unsubscribe: On Fri, Jun 20, 2025 at 1:47=E2=80=AFAM Uladzislau Rezki = wrote: > > On Fri, Jun 20, 2025 at 12:04:50AM +0900, Harry Yoo wrote: > > On Thu, Jun 19, 2025 at 11:10:43PM +0900, Harry Yoo wrote: > > > On Wed, Jun 18, 2025 at 02:25:37PM +0800, kernel test robot wrote: > > > > > > > > Hello, > > > > > > > > for this change, we reported > > > > "[linux-next:master] [lib/test_vmalloc.c] 7fc85b92db: Mem-Info" > > > > in > > > > https://lore.kernel.org/all/202505071555.e757f1e0-lkp@intel.com/ > > > > > > > > at that time, we made some tests with x86_64 config which runs well= . > > > > > > > > now we noticed the commit is in mainline now. > > > > > > (Re-sending due to not Ccing people and the list...) > > > > > > Hi, I'm facing the same error on my testing environment. > > > > I should have clarified that the reason the kernel failed to allocate > > memory on my machine was due to running out of memory, not because of t= he > > vmalloc test module. > > > > But based on the fact that the test case (align_shift_alloc_test) is > > expected to fail, the issue here is not memory allocation failure > > itself, but rather that the kernel crashes when the allocation fails. > > > It looks someone tries to test the CONFIG_TEST_VMALLOC=3Dy as built-in > approach test-cases. Yes, it will trigger a lot of warnings as some > use cases are supposed to be failed. This will trigger a lot of kernel > warnings which can be considered by test-robot or people as problem. > > In this case i can exclude those use cases or even not run at all unless > boot-parameters properly sets if built-in. Sorry, I'm catching up on my email backlog. IIUC https://lore.kernel.org/all/20250620195305.1115151-1-harry.yoo@oracle.com/ addresses this issue. Is my understanding correct? > > -- > Uladzislau Rezki