linux-kernel - Re: [PATCH 2/2] rcuperf: Measure memory footprint during kfree

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Message-ID: <202001181907.U7Zxlyff%lkp@intel.com>
Date:   Sat, 18 Jan 2020 19:56:55 +0800
From:   kbuild test robot <lkp@...el.com>
To:     "Joel Fernandes (Google)" <joel@...lfernandes.org>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org,
        "Joel Fernandes (Google)" <joel@...lfernandes.org>,
        Davidlohr Bueso <dave@...olabs.net>,
        Josh Triplett <josh@...htriplett.org>,
        Lai Jiangshan <jiangshanlai@...il.com>,
        Mathieu Desnoyers <mathieu.desnoyers@...icios.com>,
        "Paul E. McKenney" <paulmck@...nel.org>, rcu@...r.kernel.org,
        Steven Rostedt <rostedt@...dmis.org>, urezki@...il.com
Subject: Re: [PATCH 2/2] rcuperf: Measure memory footprint during kfree_rcu()
 test (v4)

Hi "Joel,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on next-20200116]
[cannot apply to rcu/dev linux/master linus/master v5.5-rc6 v5.5-rc5 v5.5-rc4 v5.5-rc6]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system. BTW, we also suggest to use '--base' option to specify the
base tree in git format-patch, please see https://stackoverflow.com/a/37406982]

url:    https://github.com/0day-ci/linux/commits/Joel-Fernandes-Google/rcuperf-Add-support-to-vary-the-slab-object-sizes/20200117-101205
base:    2747d5fdab78f43210256cd52fb2718e0b3cce74
config: arm-allyesconfig (attached as .config)
compiler: arm-linux-gnueabi-gcc (GCC) 7.5.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        GCC_VERSION=7.5.0 make.cross ARCH=arm 

If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp@...el.com>

All errors (new ones prefixed by >>):

   kernel/rcu/rcuperf.o: In function `kfree_perf_thread':
>> rcuperf.c:(.text+0xb5c): undefined reference to `__aeabi_ldivmod'

---
0-DAY kernel test infrastructure                 Open Source Technology Center
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org Intel Corporation

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