linux-kernel - [rcu:dev 119/161] ERROR: "rcu_barrier" [fs/isofs/isofs.ko] undefined!

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Message-ID: <201807040653.xcSP674j%fengguang.wu@intel.com>
Date:   Wed, 4 Jul 2018 06:20:56 +0800
From:   kbuild test robot <lkp@...el.com>
To:     "Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
Cc:     kbuild-all@...org, linux-kernel@...r.kernel.org
Subject: [rcu:dev 119/161] ERROR: "rcu_barrier" [fs/isofs/isofs.ko] undefined!

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git dev
head:   472755d5ff3ee21ad16e0a0a06e087b7569eaffe
commit: 16bf6b3b61864e444bae5e4a7cf121f777893a8c [119/161] rcu: Express Tiny RCU updates in terms of RCU rather than RCU-sched
config: um-x86_64_defconfig (attached as .config)
compiler: gcc-7 (Debian 7.3.0-16) 7.3.0
reproduce:
        git checkout 16bf6b3b61864e444bae5e4a7cf121f777893a8c
        # save the attached .config to linux build tree
        make ARCH=um SUBARCH=x86_64

All errors (new ones prefixed by >>):

>> ERROR: "rcu_barrier" [fs/isofs/isofs.ko] undefined!

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0-DAY kernel test infrastructure                Open Source Technology Center
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