vmlinux.o: warning: objtool: ct_irq_enter+0x38: call to ftrace_likely_update() leaves .noinstr.text section
From: kernel test robot
Date: Sun Feb 19 2023 - 19:48:58 EST
Hi Frederic,
FYI, the error/warning still remains.
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: c9c3395d5e3dcc6daee66c6908354d47bf98cb0c
commit: 3864caafe7c66f01b188ffccb6a4215f3bf56292 rcu/context-tracking: Remove rcu_irq_enter/exit()
date: 8 months ago
config: x86_64-randconfig-a001-20230220 (https://download.01.org/0day-ci/archive/20230220/202302200852.lvnSFWXv-lkp@xxxxxxxxx/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=3864caafe7c66f01b188ffccb6a4215f3bf56292
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout 3864caafe7c66f01b188ffccb6a4215f3bf56292
# 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@xxxxxxxxx>
| Link: https://lore.kernel.org/oe-kbuild-all/202302200852.lvnSFWXv-lkp@xxxxxxxxx/
All warnings (new ones prefixed by >>):
ld: warning: net/bpfilter/bpfilter_umh_blob.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: __rdgsbase_inactive+0x34: call to ftrace_likely_update() leaves .noinstr.text section
vmlinux.o: warning: objtool: __wrgsbase_inactive+0x39: call to ftrace_likely_update() leaves .noinstr.text section
vmlinux.o: warning: objtool: fixup_bad_iret+0x89: call to ftrace_likely_update() leaves .noinstr.text section
vmlinux.o: warning: objtool: noist_exc_debug+0x50: call to ftrace_likely_update() leaves .noinstr.text section
vmlinux.o: warning: objtool: exc_nmi+0x35: call to ftrace_likely_update() leaves .noinstr.text section
vmlinux.o: warning: objtool: poke_int3_handler+0x4b: call to ftrace_likely_update() leaves .noinstr.text section
vmlinux.o: warning: objtool: rcu_dynticks_eqs_enter+0x1a: call to ftrace_likely_update() leaves .noinstr.text section
vmlinux.o: warning: objtool: rcu_dynticks_eqs_exit+0x1a: call to ftrace_likely_update() leaves .noinstr.text section
vmlinux.o: warning: objtool: rcu_eqs_exit.constprop.0+0x1b: call to ftrace_likely_update() leaves .noinstr.text section
vmlinux.o: warning: objtool: rcu_eqs_enter.constprop.0+0x3c: call to ftrace_likely_update() leaves .noinstr.text section
vmlinux.o: warning: objtool: rcu_idle_enter+0x14: call to ftrace_likely_update() leaves .noinstr.text section
vmlinux.o: warning: objtool: rcu_nmi_enter+0x35: call to ftrace_likely_update() leaves .noinstr.text section
vmlinux.o: warning: objtool: irqentry_nmi_enter+0x4c: call to ftrace_likely_update() leaves .noinstr.text section
vmlinux.o: warning: objtool: irqentry_nmi_exit+0x53: call to ftrace_likely_update() leaves .noinstr.text section
vmlinux.o: warning: objtool: enter_from_user_mode+0x5b: call to ftrace_likely_update() leaves .noinstr.text section
vmlinux.o: warning: objtool: syscall_enter_from_user_mode+0x60: call to ftrace_likely_update() leaves .noinstr.text section
vmlinux.o: warning: objtool: syscall_enter_from_user_mode_prepare+0x5b: call to ftrace_likely_update() leaves .noinstr.text section
vmlinux.o: warning: objtool: irqentry_enter_from_user_mode+0x5b: call to ftrace_likely_update() leaves .noinstr.text section
vmlinux.o: warning: objtool: irqentry_exit+0x40: call to ftrace_likely_update() leaves .noinstr.text section
>> vmlinux.o: warning: objtool: ct_irq_enter+0x38: call to ftrace_likely_update() leaves .noinstr.text section
>> vmlinux.o: warning: objtool: ct_irq_exit+0x38: call to ftrace_likely_update() leaves .noinstr.text section
objdump-func vmlinux.o ct_irq_enter:
0000 00000000000034ca <ct_irq_enter>:
0000 34ca: f3 0f 1e fa endbr64
0004 34ce: 55 push %rbp
0005 34cf: 8b 2d 00 00 00 00 mov 0x0(%rip),%ebp # 34d5 <ct_irq_enter+0xb> 34d1: R_X86_64_PC32 debug_locks-0x4
000b 34d5: 85 ed test %ebp,%ebp
000d 34d7: 74 1c je 34f5 <ct_irq_enter+0x2b>
000f 34d9: 65 8b 05 00 00 00 00 mov %gs:0x0(%rip),%eax # 34e0 <ct_irq_enter+0x16> 34dc: R_X86_64_PC32 lockdep_recursion-0x4
0016 34e0: 31 ed xor %ebp,%ebp
0018 34e2: 85 c0 test %eax,%eax
001a 34e4: 75 0f jne 34f5 <ct_irq_enter+0x2b>
001c 34e6: 65 8b 05 00 00 00 00 mov %gs:0x0(%rip),%eax # 34ed <ct_irq_enter+0x23> 34e9: R_X86_64_PC32 hardirqs_enabled-0x4
0023 34ed: 31 ed xor %ebp,%ebp
0025 34ef: 85 c0 test %eax,%eax
0027 34f1: 40 0f 95 c5 setne %bpl
002b 34f5: 31 c9 xor %ecx,%ecx
002d 34f7: 31 d2 xor %edx,%edx
002f 34f9: 89 ee mov %ebp,%esi
0031 34fb: 48 c7 c7 00 00 00 00 mov $0x0,%rdi 34fe: R_X86_64_32S _ftrace_annotated_branch+0x545d0
0038 3502: e8 00 00 00 00 call 3507 <ct_irq_enter+0x3d> 3503: R_X86_64_PLT32 ftrace_likely_update-0x4
003d 3507: 85 ed test %ebp,%ebp
003f 3509: 74 04 je 350f <ct_irq_enter+0x45>
0041 350b: 90 nop
0042 350c: 0f 0b ud2
0044 350e: 90 nop
0045 350f: 89 ee mov %ebp,%esi
0047 3511: 31 c9 xor %ecx,%ecx
0049 3513: 31 d2 xor %edx,%edx
004b 3515: 48 c7 c7 00 00 00 00 mov $0x0,%rdi 3518: R_X86_64_32S _ftrace_annotated_branch+0x545a0
0052 351c: e8 00 00 00 00 call 3521 <ct_irq_enter+0x57> 351d: R_X86_64_PLT32 ftrace_likely_update-0x4
0057 3521: 5d pop %rbp
0058 3522: eb 9d jmp 34c1 <ct_nmi_enter>
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests