linux-kernel - Re: [PATCH] bcache: consider the fragmentation when update the writeback rate

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Date:   Wed, 4 Nov 2020 13:06:12 +0800
From:   kernel test robot <lkp@...el.com>
To:     Dongdong Tao <tdd21151186@...il.com>, colyli@...e.de
Cc:     linux-kernel@...r.kernel.org
Subject: Re: [PATCH] bcache: consider the fragmentation when update the
 writeback rate

Hi Dongdong,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on linus/master]
[also build test ERROR on v5.10-rc2 next-20201103]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:    https://github.com/0day-ci/linux/commits/Dongdong-Tao/bcache-consider-the-fragmentation-when-update-the-writeback-rate/20201103-204517
base:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git b7cbaf59f62f8ab8f157698f9e31642bff525bd0
config: nds32-randconfig-p002-20201103 (attached as .config)
compiler: nds32le-linux-gcc (GCC) 9.3.0
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://github.com/0day-ci/linux/commit/4e57aac94bb0d0822473657d7ef0f3a0455e81f6
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Dongdong-Tao/bcache-consider-the-fragmentation-when-update-the-writeback-rate/20201103-204517
        git checkout 4e57aac94bb0d0822473657d7ef0f3a0455e81f6
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=nds32 

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

All errors (new ones prefixed by >>):

   nds32le-linux-ld: arch/nds32/kernel/ex-entry.o: in function `common_exception_handler':
   (.text+0xfe): undefined reference to `__trace_hardirqs_off'
   (.text+0xfe): relocation truncated to fit: R_NDS32_25_PCREL_RELA against undefined symbol `__trace_hardirqs_off'
   nds32le-linux-ld: arch/nds32/kernel/ex-exit.o: in function `no_work_pending':
   (.text+0xce): undefined reference to `__trace_hardirqs_off'
   nds32le-linux-ld: (.text+0xd2): undefined reference to `__trace_hardirqs_off'
   nds32le-linux-ld: (.text+0xd6): undefined reference to `__trace_hardirqs_on'
   nds32le-linux-ld: (.text+0xda): undefined reference to `__trace_hardirqs_on'
   nds32le-linux-ld: drivers/md/bcache/writeback.o: in function `update_writeback_rate':
>> writeback.c:(.text+0x1ffa): undefined reference to `__divdi3'
>> nds32le-linux-ld: writeback.c:(.text+0x1ffe): undefined reference to `__divdi3'

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

Download attachment ".config.gz" of type "application/gzip" (34232 bytes)