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Date: Sun, 5 Feb 2023 00:06:27 +0800
From: kernel test robot <lkp@...el.com>
To: Josh Poimboeuf <jpoimboe@...hat.com>
Cc: oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org,
Peter Zijlstra <peterz@...radead.org>,
Miroslav Benes <mbenes@...e.cz>
Subject: vmlinux.o: warning: objtool: vmx_vcpu_enter_exit+0x27: call to
context_tracking_enabled_this_cpu() leaves .noinstr.text section
Hi Josh,
FYI, the error/warning still remains.
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 0136d86b78522bbd5755f8194c97a987f0586ba5
commit: 2bc3dec7055e34c2c2e497f109da6748544c0791 objtool: Don't print parentheses in function addresses
date: 10 months ago
config: x86_64-randconfig-a004-20221128 (https://download.01.org/0day-ci/archive/20230205/202302050019.075FHixH-lkp@intel.com/config)
compiler: gcc-11 (Debian 11.3.0-8) 11.3.0
reproduce (this is a W=1 build):
# https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=2bc3dec7055e34c2c2e497f109da6748544c0791
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout 2bc3dec7055e34c2c2e497f109da6748544c0791
# 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>
All warnings (new ones prefixed by >>):
ld: warning: arch/x86/lib/retpoline.o: missing .note.GNU-stack section implies executable stack
ld: NOTE: This behaviour is deprecated and will be removed in a future version of the linker
>> vmlinux.o: warning: objtool: vmx_vcpu_enter_exit+0x27: call to context_tracking_enabled_this_cpu() leaves .noinstr.text section
vmlinux.o: warning: objtool: enter_from_user_mode+0x4e: call to on_thread_stack() leaves .noinstr.text section
vmlinux.o: warning: objtool: syscall_enter_from_user_mode+0x57: call to on_thread_stack() leaves .noinstr.text section
vmlinux.o: warning: objtool: syscall_enter_from_user_mode_prepare+0x4e: call to on_thread_stack() leaves .noinstr.text section
vmlinux.o: warning: objtool: irqentry_enter_from_user_mode+0x4e: call to on_thread_stack() leaves .noinstr.text section
ld: warning: vmlinux.o: requires executable stack (because the .note.GNU-stack section is executable)
ld: warning: .tmp_vmlinux.kallsyms1 has a LOAD segment with RWX permissions
ld: warning: vmlinux.o: requires executable stack (because the .note.GNU-stack section is executable)
ld: warning: .tmp_vmlinux.kallsyms2 has a LOAD segment with RWX permissions
ld: warning: vmlinux.o: requires executable stack (because the .note.GNU-stack section is executable)
ld: warning: vmlinux has a LOAD segment with RWX permissions
objdump-func vmlinux.o vmx_vcpu_enter_exit:
0000 000000000000030d <vmx_vcpu_enter_exit>:
0000 30d: 55 push %rbp
0001 30e: 48 89 f5 mov %rsi,%rbp
0004 311: 53 push %rbx
0005 312: 48 89 fb mov %rdi,%rbx
0008 315: 90 nop
0009 316: e8 00 00 00 00 call 31b <vmx_vcpu_enter_exit+0xe> 317: R_X86_64_PLT32 trace_hardirqs_on_prepare-0x4
000e 31b: 48 8b 7c 24 10 mov 0x10(%rsp),%rdi
0013 320: e8 00 00 00 00 call 325 <vmx_vcpu_enter_exit+0x18> 321: R_X86_64_PLT32 lockdep_hardirqs_on_prepare-0x4
0018 325: 90 nop
0019 326: 66 90 xchg %ax,%ax
001b 328: eb 0a jmp 334 <vmx_vcpu_enter_exit+0x27>
001d 32a: bf 02 00 00 00 mov $0x2,%edi
0022 32f: e8 00 00 00 00 call 334 <vmx_vcpu_enter_exit+0x27> 330: R_X86_64_PLT32 __context_tracking_enter-0x4
0027 334: e8 00 00 00 00 call 339 <vmx_vcpu_enter_exit+0x2c> 335: R_X86_64_PC32 .text+0x151972
002c 339: 84 c0 test %al,%al
002e 33b: 75 07 jne 344 <vmx_vcpu_enter_exit+0x37>
0030 33d: 90 nop
0031 33e: e8 00 00 00 00 call 343 <vmx_vcpu_enter_exit+0x36> 33f: R_X86_64_PC32 .text+0x15ac9b
0036 343: 90 nop
0037 344: 48 8b 7c 24 10 mov 0x10(%rsp),%rdi
003c 349: e8 00 00 00 00 call 34e <vmx_vcpu_enter_exit+0x41> 34a: R_X86_64_PLT32 lockdep_hardirqs_on-0x4
0041 34e: 66 90 xchg %ax,%ax
0043 350: 66 90 xchg %ax,%ax
0045 352: eb 11 jmp 365 <vmx_vcpu_enter_exit+0x58>
0047 354: 48 89 df mov %rbx,%rdi
004a 357: e8 3b ff ff ff call 297 <vmx_l1d_flush>
004f 35c: eb 07 jmp 365 <vmx_vcpu_enter_exit+0x58>
0051 35e: 0f 00 2d 00 00 00 00 verw 0x0(%rip) # 365 <vmx_vcpu_enter_exit+0x58> 361: R_X86_64_PC32 .rodata+0x42c1c
0058 365: 48 8b 83 78 02 00 00 mov 0x278(%rbx),%rax
005f 36c: 0f 20 d2 mov %cr2,%rdx
0062 36f: 48 39 d0 cmp %rdx,%rax
0065 372: 74 03 je 377 <vmx_vcpu_enter_exit+0x6a>
0067 374: 0f 22 d0 mov %rax,%cr2
006a 377: 48 8b 85 60 23 00 00 mov 0x2360(%rbp),%rax
0071 37e: 48 8d b3 d8 01 00 00 lea 0x1d8(%rbx),%rsi
0078 385: 48 89 ef mov %rbp,%rdi
007b 388: 0f b6 50 14 movzbl 0x14(%rax),%edx
007f 38c: e8 00 00 00 00 call 391 <vmx_vcpu_enter_exit+0x84> 38d: R_X86_64_PLT32 __vmx_vcpu_run-0x4
0084 391: 88 85 d8 21 00 00 mov %al,0x21d8(%rbp)
008a 397: 0f 20 d0 mov %cr2,%rax
008d 39a: 48 89 83 78 02 00 00 mov %rax,0x278(%rbx)
0094 3a1: 48 8b 7c 24 10 mov 0x10(%rsp),%rdi
0099 3a6: e8 00 00 00 00 call 3ab <vmx_vcpu_enter_exit+0x9e> 3a7: R_X86_64_PLT32 lockdep_hardirqs_off-0x4
009e 3ab: 66 90 xchg %ax,%ax
00a0 3ad: eb 0a jmp 3b9 <vmx_vcpu_enter_exit+0xac>
00a2 3af: bf 02 00 00 00 mov $0x2,%edi
00a7 3b4: e8 00 00 00 00 call 3b9 <vmx_vcpu_enter_exit+0xac> 3b5: R_X86_64_PLT32 __context_tracking_exit-0x4
00ac 3b9: 90 nop
00ad 3ba: e8 00 00 00 00 call 3bf <vmx_vcpu_enter_exit+0xb2> 3bb: R_X86_64_PLT32 trace_hardirqs_off_finish-0x4
00b2 3bf: 90 nop
00b3 3c0: 5b pop %rbx
00b4 3c1: 5d pop %rbp
00b5 3c2: c3 ret
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests
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