* loop.c:undefined reference to `__bad_cmpxchg'
@ 2021-08-29 9:41 kernel test robot
0 siblings, 0 replies; only message in thread
From: kernel test robot @ 2021-08-29 9:41 UTC (permalink / raw)
To: Tetsuo Handa; +Cc: kbuild-all, linux-kernel, 0day robot
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tree: https://github.com/0day-ci/linux/commits/UPDATE-20210829-092430/Tetsuo-Handa/loop-replace-loop_ctl_mutex-with-loop_idr_spinlock/20210827-000519
head: d1d1d6b0374667ffe7418416765eedda70f0b6a5
commit: d1d1d6b0374667ffe7418416765eedda70f0b6a5 loop: reduce the loop_ctl_mutex scope
date: 8 hours ago
config: arm-imx_v6_v7_defconfig (attached as .config)
compiler: arm-linux-gnueabi-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://github.com/0day-ci/linux/commit/d1d1d6b0374667ffe7418416765eedda70f0b6a5
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review UPDATE-20210829-092430/Tetsuo-Handa/loop-replace-loop_ctl_mutex-with-loop_idr_spinlock/20210827-000519
git checkout d1d1d6b0374667ffe7418416765eedda70f0b6a5
# save the attached .config to linux build tree
mkdir build_dir
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=arm 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 >>):
arm-linux-gnueabi-ld: drivers/block/loop.o: in function `loop_control_ioctl':
>> loop.c:(.text+0xdcc): undefined reference to `__bad_cmpxchg'
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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