linux-kernel - fs/ntfs/attrib.o: warning: objtool: ntfs_attr_extend_allocation()+0x18f: unreachable instruction

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Message-ID: <202010151425.JohF0sbo-lkp@intel.com>
Date:   Thu, 15 Oct 2020 14:30:30 +0800
From:   kernel test robot <lkp@...el.com>
To:     Josh Poimboeuf <jpoimboe@...hat.com>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org,
        Borislav Petkov <bp@...e.de>,
        Kees Cook <keescook@...omium.org>,
        Miroslav Benes <mbenes@...e.cz>
Subject: fs/ntfs/attrib.o: warning: objtool:
 ntfs_attr_extend_allocation()+0x18f: unreachable instruction

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   3e4fb4346c781068610d03c12b16c0cfb0fd24a3
commit: bd841d6154f5f41f8a32d3c1b0bc229e326e640a objtool: Fix CONFIG_UBSAN_TRAP unreachable warnings
date:   6 months ago
config: x86_64-randconfig-m001-20201015 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-15) 9.3.0
reproduce (this is a W=1 build):
        # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=bd841d6154f5f41f8a32d3c1b0bc229e326e640a
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout bd841d6154f5f41f8a32d3c1b0bc229e326e640a
        # save the attached .config to linux build tree
        make W=1 ARCH=x86_64 

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

All warnings (new ones prefixed by >>):

>> fs/ntfs/attrib.o: warning: objtool: ntfs_attr_extend_allocation()+0x18f: unreachable instruction
--
>> fs/ntfs/super.o: warning: objtool: ntfs_fill_super()+0x2ce: unreachable instruction
--
>> drivers/ide/ide-tape.o: warning: objtool: idetape_queue_rw_tail()+0x4a: unreachable instruction
--
>> arch/x86/platform/pvh/enlighten.o: warning: objtool: xen_prepare_pvh()+0x108: unreachable instruction
--
>> mm/ksm.o: warning: objtool: ksm_scan_thread()+0x1f3: unreachable instruction
--
>> mm/vmscan.o: warning: objtool: shrink_page_list()+0x1cd: unreachable instruction
--
>> mm/compaction.o: warning: objtool: compact_zone()+0x27f: unreachable instruction
--
>> mm/vmalloc.o: warning: objtool: vm_map_ram()+0x5f: unreachable instruction
--
>> fs/mpage.o: warning: objtool: do_mpage_readpage()+0x656: unreachable instruction
--
>> fs/buffer.o: warning: objtool: create_page_buffers()+0x3d: unreachable instruction
--
>> fs/ext4/mballoc.o: warning: objtool: ext4_mb_normalize_request.constprop.0()+0xcf: unreachable instruction
..

---
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" (40780 bytes)