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[82.69.66.36]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-4356996dad0sm46479226f8f.27.2026.01.22.06.57.53 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 22 Jan 2026 06:57:53 -0800 (PST) Date: Thu, 22 Jan 2026 14:57:52 +0000 From: David Laight To: kernel test robot Cc: oe-kbuild-all@lists.linux.dev, linux-kernel@vger.kernel.org, Andrew Morton , Linux Memory Management List , Nicolas Pitre Subject: Re: mips64-linux-ld: lib/math/div64.c:undefined reference to `__multi3' Message-ID: <20260122145752.1e4c4202@pumpkin> In-Reply-To: <202601222217.uzed54La-lkp@intel.com> References: <202601222217.uzed54La-lkp@intel.com> X-Mailer: Claws Mail 4.1.1 (GTK 3.24.38; arm-unknown-linux-gnueabihf) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit On Thu, 22 Jan 2026 22:43:28 +0800 kernel test robot wrote: > tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master > head: a66191c590b3b58eaff05d2277971f854772bd5b > commit: d10bb374c41e4c4dced04ae7d2fe2d782a5858a0 lib: mul_u64_u64_div_u64(): optimise the divide code > date: 9 weeks ago > config: mips-randconfig-r062-20260122 (https://download.01.org/0day-ci/archive/20260122/202601222217.uzed54La-lkp@intel.com/config) > compiler: mips64-linux-gcc (GCC) 8.5.0 > reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260122/202601222217.uzed54La-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/202601222217.uzed54La-lkp@intel.com/ > > All errors (new ones prefixed by >>): > > mips64-linux-ld: mips64-linux-ld: lib/math/div64.o: unable to get decompressed section .debug_info > lib/math/div64.o: in function `mul_u64_add_u64_div_u64': > lib/math/div64.c:(.text+0x60): undefined reference to `__multi3' > >> mips64-linux-ld: lib/math/div64.c:(.text+0x188): undefined reference to `__multi3' > Known error, duplicate of a different build. Really a bug in gcc, fixable by changing the compiler version in a test. David