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Date: Sat, 29 Apr 2023 14:34:39 +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: intel_idle_ibrs+0x12: call to
sched_smt_active() 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: 89d77f71f493a3663b10fa812d17f472935d24be
commit: 2b5a0e425e6e319b1978db1e9564f6af4228a567 objtool/idle: Validate __cpuidle code as noinstr
date: 4 months ago
config: x86_64-randconfig-c022 (https://download.01.org/0day-ci/archive/20230429/202304291444.8Uqp9A2n-lkp@intel.com/config)
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=2b5a0e425e6e319b1978db1e9564f6af4228a567
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout 2b5a0e425e6e319b1978db1e9564f6af4228a567
# 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>
| Link: https://lore.kernel.org/oe-kbuild-all/202304291444.8Uqp9A2n-lkp@intel.com/
All warnings (new ones prefixed by >>):
vmlinux.o: warning: objtool: __rdgsbase_inactive+0x32: call to ftrace_likely_update() leaves .noinstr.text section
vmlinux.o: warning: objtool: __wrgsbase_inactive+0x36: call to ftrace_likely_update() leaves .noinstr.text section
vmlinux.o: warning: objtool: fixup_bad_iret+0x75: call to ftrace_likely_update() leaves .noinstr.text section
vmlinux.o: warning: objtool: noist_exc_debug+0x3d: call to ftrace_likely_update() leaves .noinstr.text section
vmlinux.o: warning: objtool: exc_nmi+0xbc: call to ftrace_likely_update() leaves .noinstr.text section
vmlinux.o: warning: objtool: poke_int3_handler+0x34: call to ftrace_likely_update() leaves .noinstr.text section
vmlinux.o: warning: objtool: mce_check_crashing_cpu+0xd: call to ftrace_likely_update() leaves .noinstr.text section
vmlinux.o: warning: objtool: do_machine_check+0x4d: call to ftrace_likely_update() leaves .noinstr.text section
vmlinux.o: warning: objtool: exc_machine_check+0x52: call to ftrace_likely_update() leaves .noinstr.text section
vmlinux.o: warning: objtool: irqentry_nmi_enter+0x49: call to ftrace_likely_update() leaves .noinstr.text section
vmlinux.o: warning: objtool: irqentry_nmi_exit+0x6b: call to ftrace_likely_update() leaves .noinstr.text section
vmlinux.o: warning: objtool: enter_from_user_mode+0x3a: call to ftrace_likely_update() leaves .noinstr.text section
vmlinux.o: warning: objtool: syscall_enter_from_user_mode+0x3f: call to ftrace_likely_update() leaves .noinstr.text section
vmlinux.o: warning: objtool: syscall_enter_from_user_mode_prepare+0x3a: call to ftrace_likely_update() leaves .noinstr.text section
vmlinux.o: warning: objtool: irqentry_enter_from_user_mode+0x3a: call to ftrace_likely_update() leaves .noinstr.text section
vmlinux.o: warning: objtool: irqentry_exit+0x3e: call to ftrace_likely_update() 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+0x6: call to current_set_polling_and_test() leaves .noinstr.text section
vmlinux.o: warning: objtool: acpi_processor_ffh_cstate_enter+0x24: call to current_set_polling_and_test() leaves .noinstr.text section
vmlinux.o: warning: objtool: cpu_idle_poll.isra.0+0x7f: call to test_ti_thread_flag.constprop.0() leaves .noinstr.text section
vmlinux.o: warning: objtool: intel_idle+0x35: call to current_set_polling_and_test() leaves .noinstr.text section
vmlinux.o: warning: objtool: intel_idle_s2idle+0x3b: call to current_set_polling_and_test() 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_ibrs+0x12: call to sched_smt_active() leaves .noinstr.text section
vmlinux.o: warning: objtool: intel_idle_irq+0x36: call to current_set_polling_and_test() 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+0x53: call to ftrace_likely_update() leaves .noinstr.text section
>> vmlinux.o: warning: objtool: acpi_idle_enter+0x4c: call to ftrace_likely_update() leaves .noinstr.text section
objdump-func vmlinux.o intel_idle_ibrs:
0000 000000000000047d <intel_idle_ibrs>:
0000 47d: f3 0f 1e fa endbr64
0004 481: 41 56 push %r14
0006 483: 49 89 f6 mov %rsi,%r14
0009 486: 41 55 push %r13
000b 488: 41 54 push %r12
000d 48a: 41 89 d4 mov %edx,%r12d
0010 48d: 55 push %rbp
0011 48e: 53 push %rbx
0012 48f: e8 00 00 00 00 call 494 <intel_idle_ibrs+0x17> 490: R_X86_64_PC32 .text+0x9cb97d
0017 494: 89 c5 mov %eax,%ebp
0019 496: e8 00 00 00 00 call 49b <intel_idle_ibrs+0x1e> 497: R_X86_64_PLT32 spec_ctrl_current-0x4
001e 49b: 49 89 c5 mov %rax,%r13
0021 49e: 40 84 ed test %bpl,%bpl
0024 4a1: 74 0c je 4af <intel_idle_ibrs+0x32>
0026 4a3: 31 f6 xor %esi,%esi
0028 4a5: bf 48 00 00 00 mov $0x48,%edi
002d 4aa: e8 00 00 00 00 call 4af <intel_idle_ibrs+0x32> 4ab: R_X86_64_PC32 .text+0x9cb9a3
0032 4af: 49 63 dc movslq %r12d,%rbx
0035 4b2: 48 83 fb 0a cmp $0xa,%rbx
0039 4b6: 76 0f jbe 4c7 <intel_idle_ibrs+0x4a>
003b 4b8: 48 89 de mov %rbx,%rsi
003e 4bb: 48 c7 c7 00 00 00 00 mov $0x0,%rdi 4be: R_X86_64_32S .data+0x8e65a0
0045 4c2: e8 00 00 00 00 call 4c7 <intel_idle_ibrs+0x4a> 4c3: R_X86_64_PLT32 __ubsan_handle_out_of_bounds-0x4
004a 4c7: 48 6b db 68 imul $0x68,%rbx,%rbx
004e 4cb: 41 8b 5c 1e 58 mov 0x58(%r14,%rbx,1),%ebx
0053 4d0: e9 00 00 00 00 jmp 4d5 <intel_idle_ibrs+0x58> 4d1: R_X86_64_PC32 .altinstr_aux+0xda0
0058 4d5: eb 09 jmp 4e0 <intel_idle_ibrs+0x63>
005a 4d7: e8 00 00 00 00 call 4dc <intel_idle_ibrs+0x5f> 4d8: R_X86_64_PC32 .text+0x9cbb80
005f 4dc: 84 c0 test %al,%al
0061 4de: 75 5a jne 53a <intel_idle_ibrs+0xbd>
0063 4e0: e9 00 00 00 00 jmp 4e5 <intel_idle_ibrs+0x68> 4e1: R_X86_64_PC32 .altinstr_aux+0xdb2
0068 4e5: 0f ae f0 mfence
006b 4e8: 48 8b 3c 25 00 00 00 00 mov 0x0,%rdi 4ec: R_X86_64_32S pcpu_hot
0073 4f0: e8 00 00 00 00 call 4f5 <intel_idle_ibrs+0x78> 4f1: R_X86_64_PC32 .text+0x9cb979
0078 4f5: 0f ae f0 mfence
007b 4f8: 4c 8b 34 25 00 00 00 00 mov 0x0,%r14 4fc: R_X86_64_32S pcpu_hot
0083 500: 4c 89 f7 mov %r14,%rdi
0086 503: e8 00 00 00 00 call 508 <intel_idle_ibrs+0x8b> 504: R_X86_64_PC32 .text+0x9cbb0a
008b 508: 4c 89 f7 mov %r14,%rdi
008e 50b: e8 00 00 00 00 call 510 <intel_idle_ibrs+0x93> 50c: R_X86_64_PC32 .text+0x9cbb16
0093 510: 31 f6 xor %esi,%esi
0095 512: 48 c7 c7 00 00 00 00 mov $0x0,%rdi 515: R_X86_64_32S _ftrace_annotated_branch+0xce2e0
009c 519: 85 c0 test %eax,%eax
009e 51b: 41 89 c6 mov %eax,%r14d
00a1 51e: 40 0f 95 c6 setne %sil
00a5 522: 31 c9 xor %ecx,%ecx
00a7 524: 31 d2 xor %edx,%edx
00a9 526: e8 00 00 00 00 call 52b <intel_idle_ibrs+0xae> 527: R_X86_64_PLT32 ftrace_likely_update-0x4
00ae 52b: 45 85 f6 test %r14d,%r14d
00b1 52e: 75 0a jne 53a <intel_idle_ibrs+0xbd>
00b3 530: c1 eb 18 shr $0x18,%ebx
00b6 533: 89 df mov %ebx,%edi
00b8 535: e8 00 00 00 00 call 53a <intel_idle_ibrs+0xbd> 536: R_X86_64_PC32 .text+0x9cbaf5
00bd 53a: e8 00 00 00 00 call 53f <intel_idle_ibrs+0xc2> 53b: R_X86_64_PC32 .text+0x9cbb4e
00c2 53f: 40 84 ed test %bpl,%bpl
00c5 542: 74 0d je 551 <intel_idle_ibrs+0xd4>
00c7 544: 4c 89 ee mov %r13,%rsi
00ca 547: bf 48 00 00 00 mov $0x48,%edi
00cf 54c: e8 00 00 00 00 call 551 <intel_idle_ibrs+0xd4> 54d: R_X86_64_PC32 .text+0x9cb9a3
00d4 551: 5b pop %rbx
00d5 552: 44 89 e0 mov %r12d,%eax
00d8 555: 5d pop %rbp
00d9 556: 41 5c pop %r12
00db 558: 41 5d pop %r13
00dd 55a: 41 5e pop %r14
00df 55c: c3 ret
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests
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