Messages in this thread | | | Date | Tue, 22 Feb 2022 06:53:49 -0800 | From | "Paul E. McKenney" <> | Subject | Re: [kbuild-all] Re: [paulmck-rcu:dev.2022.02.17a 73/73] make[3]: *** No rule to make target 'kernel/rcu/typesafe.o', needed by 'kernel/rcu/built-in.a'. |
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On Tue, Feb 22, 2022 at 04:30:40PM +0800, Chen, Rong A wrote: > > > On 2/22/2022 5:47 AM, Paul E. McKenney wrote: > > On Tue, Feb 22, 2022 at 03:05:27AM +0800, kernel test robot wrote: > > > Hi Paul, > > > > > > First bad commit (maybe != root cause): > > > > > > tree: https://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git dev.2022.02.17a > > > head: f5b2eaf791ebbd6af881947ab7c40ed70681e534 > > > commit: f5b2eaf791ebbd6af881947ab7c40ed70681e534 [73/73] EXP torture: Add tests demoing SLAB_TYPESAFE_BY_RCU > > > config: arc-allyesconfig (https://download.01.org/0day-ci/archive/20220222/202202220308.TNib9D2v-lkp@intel.com/config) > > > compiler: arceb-elf-gcc (GCC) 11.2.0 > > > reproduce (this is a W=1 build): > > > wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross > > > chmod +x ~/bin/make.cross > > > # https://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git/commit/?id=f5b2eaf791ebbd6af881947ab7c40ed70681e534 > > > git remote add paulmck-rcu https://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git > > > git fetch --no-tags paulmck-rcu dev.2022.02.17a > > > git checkout f5b2eaf791ebbd6af881947ab7c40ed70681e534 > > > # save the config file to linux build tree > > > mkdir build_dir > > > COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=arc SHELL=/bin/bash > > > > > > If you fix the issue, kindly add following tag as appropriate > > > Reported-by: kernel test robot <lkp@intel.com> > > > > > > All errors (new ones prefixed by >>): > > > > > > > > make[3]: *** No rule to make target 'kernel/rcu/typesafe.o', needed by 'kernel/rcu/built-in.a'. > > > make[3]: Target '__build' not remade because of errors. > > > > This is the only commit involving kernel/rcu/typesafe.o, so... > > > > One the one hand, I do not plan to upstream this, so maybe it doesn't > > matter. > > > > I have been building this using the rcutorture scripting for some time, > > same RCU-related .config as you are using. But when I pulled it into > > a clone in a neighboring directory, it failed just as it did for you. > > The problem was that the update to kernel/rcu/Makefile somehow didn't > > come across, so this line was missing: > > > > obj-$(CONFIG_RCU_TYPESAFE_TEST) += typesafe.o > > > > Which of course explains the build failure. > > > > I blew away that clone and re-cloned it. And it still failed, both > > with "make" from the commandline and under rcutorture. > > > > Hahahahahahaahaha!!! > > > > I forgot "git add kernel/rcu/typesafe.c". > > > > There is now a new typesafe.2022.02.21a tag with this file added. > > > > Good catch! That file happened to still be lying around. The first > > "git reset --hard" would have destroyed. Thank you!!! > > > > And with that fixed, my clone now builds correctly. Does this fix > > it for you? > > Hi Paul, > > I can't find the tag 'typesafe.2022.02.21a' from https://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git/refs/tags
That would be because I failed to push it out. :-/
Which I just now did, apologies for my confusion.
Thanx, Paul
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