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Message-Id: <20260331112341.83f62d4d4de710457ecb59c1@linux-foundation.org> In-Reply-To: <202603311105.ysUeYPSZ-lkp@intel.com> References: <202603311105.ysUeYPSZ-lkp@intel.com> X-Mailer: Sylpheed 3.8.0beta1 (GTK+ 2.24.33; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Rspam-User: X-Rspamd-Queue-Id: 0924B140002 X-Stat-Signature: 47rmxt5wwiy3xdq4atukjzsppug5zw43 X-Rspamd-Server: rspam06 X-HE-Tag: 1774981422-526981 X-HE-Meta: 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 eOnsq7gn YN/0p8Dp1uI7wyFyULFHc+ac4p3Bt0WGFlsSsV+Ru3mEdwjoZFO74Ufh6lHNV7zlwRRNIhlhcgo0XEZ8QWRKbXMK4gk+nke4x0gBHq+gdYXmWVccdj0WyEeGmuY8foXEUhsDv/uDebkJyLTfe7yaZ+P93SdTqBDEIe73qnNur+kJ40/iKLvrlkN1V4LpzcszI53T0/3xzci5k+NBEhjuxhqWgNy3jAmxT4MpvQkupxuAGzwkhuBidysA24YLpbP8YsUhFiH8Zakre5KvWZFAgSOsNgFdKhAjG6UxOI7nDPOTwG8xYNCauYDGkK0v1v/R8f5mlXS51cXeizzkxysklAythWImC93lRLsHu0TkCK7wAESmeA3LfGolHSwTXRLTwziGuiA6m8CbpQx4= Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Tue, 31 Mar 2026 11:27:20 +0200 kernel test robot wrote: > tree: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-unstable > head: 24e341657c283c965e3bfee0baa9ed0376127973 > commit: cc0b04b10a7b98fd8df2fd539177e94e0f83a5c3 [121/130] selftests: ksft_exit_fail_perror: support printf style arguments > config: arm64-allnoconfig-bpf (https://download.01.org/0day-ci/archive/20260331/202603311105.ysUeYPSZ-lkp@intel.com/config) > compiler: aarch64-linux-gnu-gcc (Debian 14.2.0-19) 14.2.0 > reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260331/202603311105.ysUeYPSZ-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/202603311105.ysUeYPSZ-lkp@intel.com/ > > Note: the akpm-mm/mm-unstable HEAD 24e341657c283c965e3bfee0baa9ed0376127973 builds fine. > It only hurts bisectability. > > All errors (new ones prefixed by >>): > > In file included from za-fork.c:12: > ../../kselftest.h: In function 'ksft_exit_fail_perror': > >> ../../kselftest.h:427:13: error: implicit declaration of function 'vasprintf'; did you mean 'vsprintf'? [-Wimplicit-function-declaration] > 427 | if (vasprintf(&buf, msg, args) == -1) { > | ^~~~~~~~~ > | vsprintf What's going on here. vasprintf is a GNU thing, but that isn't it. kselftest.h includes stdio.h directly so fine. I don't see anything in the later patches which could alter this, so the "only hurts bisectability" is inexplicable. I was able to reproduce this, once. Now it's gone away. And arm64 allnoconfig is a nuisance. Now my vmlinux build immediately faceplants with ./arch/arm64/include/asm/atomic_ll_sc.h:298:9: error: unknown type name 'u128' 298 | u128 full; With the latest 15.2.0 kit from https://www.kernel.org/pub/tools/crosstool/.