On Tue, 18 Aug 2015 09:43:48 +0800 kbuild test robot <fengguang.wu@xxxxxxxxx> wrote: > tree: git://git.cmpxchg.org/linux-mmotm.git master > head: ef4ce68013dd78948da68460aab14b59563998d0 > commit: a91c5d8940ac0be6c80a796ddf6a2ddae5242c58 [506/522] sgi-xp: replace cpu_to_node() with cpu_to_mem() to support memoryless node > config: frv-defconfig (attached as .config) > reproduce: > wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross > chmod +x ~/bin/make.cross > git checkout a91c5d8940ac0be6c80a796ddf6a2ddae5242c58 > # save the attached .config to linux build tree > make.cross ARCH=frv > > All warnings (new ones prefixed by >>): > > frv-linux-ld: Warning: size of symbol `sys_setuid' changed from 272 in kernel/sys.o to 8 in kernel/sys_ni.o > frv-linux-ld: Warning: size of symbol `sys_setregid' changed from 328 in kernel/sys.o to 8 in kernel/sys_ni.o > frv-linux-ld: Warning: size of symbol `sys_setgid' changed from 212 in kernel/sys.o to 8 in kernel/sys_ni.o > ... Something appears to be screwed up in the FRV toolchain's handling of weak symbols. Possibly this is due to our implementation of cond_syscall(). I assume this doesn't happen with C symbols which are declared __weak, so perhaps someone who has an FRV compiler can look at the compiler's assembly output for a __weak C symbol, compare that with the cond_syscall() implementation and see if the difference suggests a fix. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>