vmlinux.o: warning: objtool: intel_idle_ibrs+0x11: call to sched_smt_active() leaves .noinstr.text section
From: kernel test robot
Date: Tue Aug 15 2023 - 18:19:22 EST
Hi Peter,
FYI, the error/warning still remains.
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 4853c74bd7ab7fdb83f319bd9ace8a08c031e9b6
commit: 2b5a0e425e6e319b1978db1e9564f6af4228a567 objtool/idle: Validate __cpuidle code as noinstr
date: 7 months ago
config: x86_64-randconfig-r035-20230816 (https://download.01.org/0day-ci/archive/20230816/202308160613.xez9StTT-lkp@xxxxxxxxx/config)
compiler: gcc-12 (Debian 12.2.0-14) 12.2.0
reproduce: (https://download.01.org/0day-ci/archive/20230816/202308160613.xez9StTT-lkp@xxxxxxxxx/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-kbuild-all/202308160613.xez9StTT-lkp@xxxxxxxxx/
All warnings (new ones prefixed by >>):
vmlinux.o: warning: objtool: __halt+0x1d: call to hcall_func.constprop.0() leaves .noinstr.text section
vmlinux.o: warning: objtool: default_idle+0x4: call to mds_idle_clear_cpu_buffers() leaves .noinstr.text section
vmlinux.o: warning: objtool: mwait_idle+0x4: call to current_set_polling_and_test() leaves .noinstr.text section
vmlinux.o: warning: objtool: acpi_processor_ffh_cstate_enter+0x69: call to current_set_polling_and_test() leaves .noinstr.text section
vmlinux.o: warning: objtool: cpu_idle_poll.isra.0+0x5d: call to test_ti_thread_flag.constprop.0() leaves .noinstr.text section
vmlinux.o: warning: objtool: intel_idle+0x7a: call to current_set_polling_and_test() leaves .noinstr.text section
vmlinux.o: warning: objtool: intel_idle_s2idle+0xa1: call to fpu_idle_fpregs() leaves .noinstr.text section
vmlinux.o: warning: objtool: intel_idle_xstate+0x11: call to fpu_idle_fpregs() leaves .noinstr.text section
vmlinux.o: warning: objtool: intel_idle_irq+0x87: call to current_set_polling_and_test() leaves .noinstr.text section
>> vmlinux.o: warning: objtool: intel_idle_ibrs+0x11: call to sched_smt_active() leaves .noinstr.text section
vmlinux.o: warning: objtool: acpi_safe_halt+0x8: call to test_ti_thread_flag.constprop.0() leaves .noinstr.text section
vmlinux.o: warning: objtool: io_idle+0x3: call to __inb.isra.0() leaves .noinstr.text section
vmlinux.o: warning: objtool: acpi_idle_enter_s2idle+0x66: call to wbinvd() leaves .noinstr.text section
vmlinux.o: warning: objtool: acpi_idle_enter+0x64: call to wbinvd() leaves .noinstr.text section
objdump-func vmlinux.o intel_idle_ibrs:
0000 00000000000005f0 <intel_idle_ibrs>:
0000 5f0: f3 0f 1e fa endbr64
0004 5f4: 41 56 push %r14
0006 5f6: 49 89 f6 mov %rsi,%r14
0009 5f9: 41 55 push %r13
000b 5fb: 41 54 push %r12
000d 5fd: 55 push %rbp
000e 5fe: 89 d5 mov %edx,%ebp
0010 600: 53 push %rbx
0011 601: e8 00 00 00 00 call 606 <intel_idle_ibrs+0x16> 602: R_X86_64_PC32 .text+0xd05b1c
0016 606: 41 89 c4 mov %eax,%r12d
0019 609: e8 00 00 00 00 call 60e <intel_idle_ibrs+0x1e> 60a: R_X86_64_PLT32 spec_ctrl_current-0x4
001e 60e: 49 89 c5 mov %rax,%r13
0021 611: 45 84 e4 test %r12b,%r12b
0024 614: 0f 85 a6 00 00 00 jne 6c0 <intel_idle_ibrs+0xd0>
002a 61a: 48 63 dd movslq %ebp,%rbx
002d 61d: 48 83 fb 0a cmp $0xa,%rbx
0031 621: 0f 87 a5 00 00 00 ja 6cc <intel_idle_ibrs+0xdc>
0037 627: 48 8d 04 5b lea (%rbx,%rbx,2),%rax
003b 62b: 48 8d 04 83 lea (%rbx,%rax,4),%rax
003f 62f: 41 8b 5c c6 58 mov 0x58(%r14,%rax,8),%ebx
0044 634: e9 00 00 00 00 jmp 639 <intel_idle_ibrs+0x49> 635: R_X86_64_PC32 .altinstr_aux+0xdfa
0049 639: e9 00 00 00 00 jmp 63e <intel_idle_ibrs+0x4e> 63a: R_X86_64_PC32 .altinstr_aux+0xe0c
004e 63e: 0f ae f0 mfence
0051 641: 48 8b 3c 25 00 00 00 00 mov 0x0,%rdi 645: R_X86_64_32S pcpu_hot
0059 649: e8 00 00 00 00 call 64e <intel_idle_ibrs+0x5e> 64a: R_X86_64_PC32 .text+0xd05b0c
005e 64e: 0f ae f0 mfence
0061 651: 48 8b 34 25 00 00 00 00 mov 0x0,%rsi 655: R_X86_64_32S pcpu_hot
0069 659: 48 89 f7 mov %rsi,%rdi
006c 65c: e8 00 00 00 00 call 661 <intel_idle_ibrs+0x71> 65d: R_X86_64_PC32 .text+0xd05bbc
0071 661: 48 89 f7 mov %rsi,%rdi
0074 664: e8 00 00 00 00 call 669 <intel_idle_ibrs+0x79> 665: R_X86_64_PC32 .text+0xd05bdc
0079 669: 85 c0 test %eax,%eax
007b 66b: 75 0a jne 677 <intel_idle_ibrs+0x87>
007d 66d: c1 eb 18 shr $0x18,%ebx
0080 670: 89 df mov %ebx,%edi
0082 672: e8 00 00 00 00 call 677 <intel_idle_ibrs+0x87> 673: R_X86_64_PC32 .text+0xd05b9c
0087 677: e8 00 00 00 00 call 67c <intel_idle_ibrs+0x8c> 678: R_X86_64_PC32 .text+0xd05c8c
008c 67c: 45 84 e4 test %r12b,%r12b
008f 67f: 75 25 jne 6a6 <intel_idle_ibrs+0xb6>
0091 681: 5b pop %rbx
0092 682: 89 e8 mov %ebp,%eax
0094 684: 5d pop %rbp
0095 685: 41 5c pop %r12
0097 687: 41 5d pop %r13
0099 689: 41 5e pop %r14
009b 68b: 31 d2 xor %edx,%edx
009d 68d: 31 f6 xor %esi,%esi
009f 68f: 31 ff xor %edi,%edi
00a1 691: c3 ret
00a2 692: cc int3
00a3 693: e8 00 00 00 00 call 698 <intel_idle_ibrs+0xa8> 694: R_X86_64_PC32 .text+0xd05c2c
00a8 698: 84 c0 test %al,%al
00aa 69a: 74 9d je 639 <intel_idle_ibrs+0x49>
00ac 69c: e8 00 00 00 00 call 6a1 <intel_idle_ibrs+0xb1> 69d: R_X86_64_PC32 .text+0xd05c8c
00b1 6a1: 45 84 e4 test %r12b,%r12b
00b4 6a4: 74 db je 681 <intel_idle_ibrs+0x91>
00b6 6a6: 4c 89 ef mov %r13,%rdi
00b9 6a9: e8 00 00 00 00 call 6ae <intel_idle_ibrs+0xbe> 6aa: R_X86_64_PC32 .text+0xd05cfc
00be 6ae: 89 e8 mov %ebp,%eax
00c0 6b0: 5b pop %rbx
00c1 6b1: 5d pop %rbp
00c2 6b2: 41 5c pop %r12
00c4 6b4: 41 5d pop %r13
00c6 6b6: 41 5e pop %r14
00c8 6b8: 31 d2 xor %edx,%edx
00ca 6ba: 31 f6 xor %esi,%esi
00cc 6bc: 31 ff xor %edi,%edi
00ce 6be: c3 ret
00cf 6bf: cc int3
00d0 6c0: 31 ff xor %edi,%edi
00d2 6c2: e8 00 00 00 00 call 6c7 <intel_idle_ibrs+0xd7> 6c3: R_X86_64_PC32 .text+0xd05cfc
00d7 6c7: e9 4e ff ff ff jmp 61a <intel_idle_ibrs+0x2a>
00dc 6cc: 48 89 de mov %rbx,%rsi
00df 6cf: 48 c7 c7 00 00 00 00 mov $0x0,%rdi 6d2: R_X86_64_32S .data+0x80af00
00e6 6d6: e8 00 00 00 00 call 6db <intel_idle_ibrs+0xeb> 6d7: R_X86_64_PLT32 __ubsan_handle_out_of_bounds-0x4
00eb 6db: e9 47 ff ff ff jmp 627 <intel_idle_ibrs+0x37>
--
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https://github.com/intel/lkp-tests/wiki