On Sat, Dec 26, 2020 at 07:31:33PM +0800, kernel test robot wrote:
> 
> Greeting,
> 
> FYI, we noticed the following commit (built with gcc-9):
> 
> commit: d828aefa7a1bdf7fbc5073fdb66da9bfb1264c21 ("[PATCH v2] blokc/blk-merge: remove the next_bvec label in __blk_bios_map_sg()")
> url: https://github.com/0day-ci/linux/commits/Hui-Su/blokc-blk-merge-remove-the-next_bvec-label-in-__blk_bios_map_sg/20201223-202618
> base: https://git.kernel.org/cgit/linux/kernel/git/axboe/linux-block.git for-next
> 
> in testcase: xfstests
> version: xfstests-x86_64-d41dcbd-1_20201218
> with following parameters:
> 
> 	disk: 4HDD
> 	fs: xfs
> 	test: xfs-reflink-18
> 	ucode: 0x21
> 
> test-description: xfstests is a regression test suite for xfs and other files ystems.
> test-url: git://git.kernel.org/pub/scm/fs/xfs/xfstests-dev.git
> 
> 
> on test machine: 4 threads Intel(R) Core(TM) i3-3220 CPU @ 3.30GHz with 8G memory
> 
> caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace):
> 
> 
> 
> 
> If you fix the issue, kindly add following tag
> Reported-by: kernel test robot <oliver.sang@intel.com>

Thanks, i will take a look at it.