| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-ID: <202305251332.tLJvrr7e-lkp@intel.com>
Date: Thu, 25 May 2023 14:08:57 +0800
From: kernel test robot <lkp@...el.com>
To: Peter Zijlstra <peterz@...radead.org>
Cc: oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org,
Ingo Molnar <mingo@...nel.org>
Subject: vmlinux.o: warning: objtool: local_clock+0xa6: call to
preempt_schedule_notrace_thunk() leaves .noinstr.text section
Hi Peter,
FYI, the error/warning still remains.
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 933174ae28ba72ab8de5b35cb7c98fc211235096
commit: 776f22913b8e50011004c6ae43004711dab7efa5 sched/clock: Make local_clock() noinstr
date: 4 months ago
config: x86_64-randconfig-x076-20230524
compiler: gcc-11 (Debian 11.3.0-12) 11.3.0
reproduce (this is a W=1 build):
# https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=776f22913b8e50011004c6ae43004711dab7efa5
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout 776f22913b8e50011004c6ae43004711dab7efa5
# save the config file
mkdir build_dir && cp config build_dir/.config
make W=1 O=build_dir ARCH=x86_64 olddefconfig
make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash
If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202305251332.tLJvrr7e-lkp@intel.com/
All warnings (new ones prefixed by >>):
vmlinux.o: warning: objtool: xen_sched_clock+0x34: call to preempt_schedule_notrace_thunk() leaves .noinstr.text section
vmlinux.o: warning: objtool: native_sched_clock+0xda: call to preempt_schedule_notrace_thunk() leaves .noinstr.text section
vmlinux.o: warning: objtool: kvm_clock_read+0x1d: call to preempt_schedule_notrace_thunk() leaves .noinstr.text section
>> vmlinux.o: warning: objtool: local_clock+0xa6: call to preempt_schedule_notrace_thunk() leaves .noinstr.text section
vmlinux.o: warning: objtool: enter_from_user_mode+0xba: call to preempt_count_add() leaves .noinstr.text section
vmlinux.o: warning: objtool: syscall_enter_from_user_mode+0x108: call to preempt_count_add() leaves .noinstr.text section
vmlinux.o: warning: objtool: syscall_enter_from_user_mode_prepare+0xdc: call to preempt_count_add() leaves .noinstr.text section
vmlinux.o: warning: objtool: irqentry_enter_from_user_mode+0xba: call to preempt_count_add() leaves .noinstr.text section
objdump-func vmlinux.o local_clock:
0000 0000000000003b40 <local_clock>:
0000 3b40: eb 1e jmp 3b60 <local_clock+0x20>
0002 3b42: e8 00 00 00 00 call 3b47 <local_clock+0x7> 3b43: R_X86_64_PLT32 sched_clock-0x4
0007 3b47: 48 03 05 00 00 00 00 add 0x0(%rip),%rax # 3b4e <local_clock+0xe> 3b4a: R_X86_64_PC32 __sched_clock_offset-0x4
000e 3b4e: 49 89 c0 mov %rax,%r8
0011 3b51: 4c 89 c0 mov %r8,%rax
0014 3b54: 31 d2 xor %edx,%edx
0016 3b56: 31 c9 xor %ecx,%ecx
0018 3b58: 31 f6 xor %esi,%esi
001a 3b5a: 31 ff xor %edi,%edi
001c 3b5c: 45 31 c0 xor %r8d,%r8d
001f 3b5f: c3 ret
0020 3b60: ff 05 00 00 00 00 incl 0x0(%rip) # 3b66 <local_clock+0x26> 3b62: R_X86_64_PC32 pcpu_hot+0x4
0026 3b66: e8 00 00 00 00 call 3b6b <local_clock+0x2b> 3b67: R_X86_64_PLT32 sched_clock-0x4
002b 3b6b: 48 2b 05 00 00 00 00 sub 0x0(%rip),%rax # 3b72 <local_clock+0x32> 3b6e: R_X86_64_PC32 sched_clock_data-0x4
0032 3b72: 48 8b 15 00 00 00 00 mov 0x0(%rip),%rdx # 3b79 <local_clock+0x39> 3b75: R_X86_64_PC32 .data..read_mostly+0xd34
0039 3b79: 48 89 c1 mov %rax,%rcx
003c 3b7c: b8 00 00 00 00 mov $0x0,%eax
0041 3b81: 48 0f 48 c8 cmovs %rax,%rcx
0045 3b85: 48 03 15 00 00 00 00 add 0x0(%rip),%rdx # 3b8c <local_clock+0x4c> 3b88: R_X86_64_PC32 sched_clock_data+0x4
004c 3b8c: 48 8b 05 00 00 00 00 mov 0x0(%rip),%rax # 3b93 <local_clock+0x53> 3b8f: R_X86_64_PC32 sched_clock_data+0xc
0053 3b93: 48 89 d7 mov %rdx,%rdi
0056 3b96: 48 89 d6 mov %rdx,%rsi
0059 3b99: 48 29 c7 sub %rax,%rdi
005c 3b9c: 4c 8d 04 11 lea (%rcx,%rdx,1),%r8
0060 3ba0: 48 85 ff test %rdi,%rdi
0063 3ba3: 7f 09 jg 3bae <local_clock+0x6e>
0065 3ba5: 4c 89 c1 mov %r8,%rcx
0068 3ba8: 48 89 c6 mov %rax,%rsi
006b 3bab: 48 29 c1 sub %rax,%rcx
006e 3bae: 48 81 c2 d5 dc 32 00 add $0x32dcd5,%rdx
0075 3bb5: 48 89 c7 mov %rax,%rdi
0078 3bb8: 48 29 d7 sub %rdx,%rdi
007b 3bbb: 48 85 ff test %rdi,%rdi
007e 3bbe: 48 0f 4f d0 cmovg %rax,%rdx
0082 3bc2: 48 85 c9 test %rcx,%rcx
0085 3bc5: 4c 0f 4e c6 cmovle %rsi,%r8
0089 3bc9: 49 39 d0 cmp %rdx,%r8
008c 3bcc: 4c 0f 49 c2 cmovns %rdx,%r8
0090 3bd0: 4c 0f b1 05 00 00 00 00 cmpxchg %r8,0x0(%rip) # 3bd8 <local_clock+0x98> 3bd4: R_X86_64_PC32 sched_clock_data+0xc
0098 3bd8: 75 8c jne 3b66 <local_clock+0x26>
009a 3bda: ff 0d 00 00 00 00 decl 0x0(%rip) # 3be0 <local_clock+0xa0> 3bdc: R_X86_64_PC32 pcpu_hot+0x4
00a0 3be0: 0f 85 6b ff ff ff jne 3b51 <local_clock+0x11>
00a6 3be6: e8 00 00 00 00 call 3beb <local_clock+0xab> 3be7: R_X86_64_PLT32 preempt_schedule_notrace_thunk-0x4
00ab 3beb: e9 61 ff ff ff jmp 3b51 <local_clock+0x11>
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
View attachment "config" of type "text/plain" (158846 bytes)
Powered by blists - more mailing lists