Hello,
kernel test robot noticed "BUG:using_smp_processor_id()in_preemptible" on:
commit: 7f4591b8cb9c4682dd20ce624bb090e2a634cf9b ("tracing: Guard
__DECLARE_TRACE() use of __DO_TRACE_CALL() with SRCU-fast")
https://git.kernel.org/cgit/linux/kernel/git/rcu/linux.git dev.30.07.2025a
in testcase: trinity
version: trinity-i386-abe9de86-1_20230429
with following parameters:
runtime: 300s
group: group-00
nr_groups: 5
config: i386-randconfig-002-20250801
compiler: clang-20
test machine: qemu-system-x86_64 -enable-kvm -cpu SandyBridge -smp 2 -m 16G
(please refer to attached dmesg/kmsg for entire log/backtrace)
+--------------------------------------------+------------+------------+
| | 97b572666e | 7f4591b8cb |
+--------------------------------------------+------------+------------+
| BUG:using_smp_processor_id()in_preemptible | 0 | 12 |
+--------------------------------------------+------------+------------+
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 <[email protected]>
| Closes: https://lore.kernel.org/oe-lkp/[email protected]
[ 32.787484][ T3676] BUG: using smp_processor_id() in preemptible [00000000]
code: meminfo/3676
[ 32.788206][ T3676] caller is debug_smp_processor_id
(lib/smp_processor_id.c:60)
[ 32.788627][ T3676] CPU: 0 UID: 0 PID: 3676 Comm: meminfo Not tainted
6.16.0-rc3-00057-g7f4591b8cb9c #1 PREEMPT(lazy)
[ 32.788631][ T3676] Call Trace:
[ 32.788633][ T3676] __dump_stack (lib/dump_stack.c:95)
[ 32.788638][ T3676] dump_stack_lvl (lib/dump_stack.c:123)
[ 32.788644][ T3676] dump_stack (lib/dump_stack.c:129)
[ 32.788647][ T3676] check_preemption_disabled (lib/smp_processor_id.c:?)
[ 32.788654][ T3676] debug_smp_processor_id (lib/smp_processor_id.c:60)
[ 32.788657][ T3676] perf_trace_sched_prepare_exec
(include/trace/events/sched.h:458)
[ 32.788672][ T3676] begin_new_exec (include/linux/srcutree.h:300
include/linux/srcu.h:419 include/linux/srcu.h:519
include/trace/events/sched.h:458 include/trace/events/sched.h:458
fs/exec.c:1110)
[ 32.788682][ T3676] load_elf_binary (fs/binfmt_elf.c:?)
[ 32.788693][ T3676] ? __this_cpu_preempt_check (lib/smp_processor_id.c:67)
[ 32.788698][ T3676] ? bprm_execve (fs/exec.c:1665 fs/exec.c:1697
fs/exec.c:1749)
[ 32.788707][ T3676] bprm_execve (fs/exec.c:1665 fs/exec.c:1697 fs/exec.c:1749)
[ 32.788719][ T3676] do_execveat_common (fs/exec.c:?)
[ 32.788724][ T3676] __ia32_sys_execve (fs/exec.c:1929 fs/exec.c:2005
fs/exec.c:2000 fs/exec.c:2000)
[ 32.788731][ T3676] ia32_sys_call
(kbuild/obj/consumer/i386-randconfig-002-20250801/./arch/x86/include/generated/asm/syscalls_32.h:?)
[ 32.788735][ T3676] __do_fast_syscall_32 (arch/x86/entry/syscall_32.c:?)
[ 32.788740][ T3676] ? __lock_acquire (kernel/locking/lockdep.c:4677)
[ 32.788745][ T3676] ? __lock_acquire (kernel/locking/lockdep.c:4677)
[ 32.788763][ T3676] ? get_page_from_freelist (mm/page_alloc.c:1714
mm/page_alloc.c:3669)
[ 32.788766][ T3676] ? __this_cpu_preempt_check (lib/smp_processor_id.c:67)
[ 32.788773][ T3676] ? lock_acquire (kernel/locking/lockdep.c:5871)
[ 32.788779][ T3676] ? local_lock_release
(include/linux/local_lock_internal.h:54)
[ 32.788786][ T3676] ? __this_cpu_preempt_check (lib/smp_processor_id.c:67)
[ 32.788790][ T3676] ? local_lock_release
(include/linux/local_lock_internal.h:54)
[ 32.788800][ T3676] ? __this_cpu_preempt_check (lib/smp_processor_id.c:67)
[ 32.788805][ T3676] ? rcu_lock_acquire (include/linux/rcupdate.h:340)
[ 32.788814][ T3676] ? handle_mm_fault (include/linux/rcupdate.h:?
include/linux/pgtable.h:136 mm/memory.c:3670 mm/memory.c:4030 mm/memory.c:6105
mm/memory.c:6232 mm/memory.c:6401)
[ 32.788827][ T3676] ? __this_cpu_preempt_check (lib/smp_processor_id.c:67)
[ 32.788830][ T3676] ? preempt_count_add (include/linux/ftrace.h:1091
kernel/sched/core.c:5852 kernel/sched/core.c:5877)
[ 32.788837][ T3676] ? irqentry_exit (kernel/entry/common.c:320)
[ 32.788840][ T3676] ? __this_cpu_preempt_check (lib/smp_processor_id.c:67)
[ 32.788843][ T3676] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475)
[ 32.788849][ T3676] ? irqentry_exit_to_user_mode (kernel/entry/common.c:187)
[ 32.788856][ T3676] do_fast_syscall_32 (arch/x86/entry/syscall_32.c:331)
[ 32.788860][ T3676] do_SYSENTER_32 (arch/x86/entry/syscall_32.c:369)
[ 32.788862][ T3676] entry_SYSENTER_32 (arch/x86/entry/entry_32.S:836)
[ 32.788865][ T3676] EIP: 0xb7f4c539
[ 32.788868][ T3676] Code: 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d>
5a 59 c3 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90
All code
========
0: 03 74 b4 01 add 0x1(%rsp,%rsi,4),%esi
4: 10 07 adc %al,(%rdi)
6: 03 74 b0 01 add 0x1(%rax,%rsi,4),%esi
a: 10 08 adc %cl,(%rax)
c: 03 74 d8 01 add 0x1(%rax,%rbx,8),%esi
...
20:* 00 51 52 add %dl,0x52(%rcx) <-- trapping
instruction
23: 55 push %rbp
24: 89 e5 mov %esp,%ebp
26: 0f 34 sysenter
28: cd 80 int $0x80
2a: 5d pop %rbp
2b: 5a pop %rdx
2c: 59 pop %rcx
2d: c3 ret
2e: 90 nop
2f: 90 nop
30: 90 nop
31: 90 nop
32: 90 nop
33: 90 nop
34: 90 nop
35: 90 nop
36: 90 nop
37: 90 nop
38: 90 nop
39: 90 nop
3a: 90 nop
3b: 90 nop
3c: 90 nop
3d: 90 nop
3e: 90 nop
3f: 90 nop
Code starting with the faulting instruction
===========================================
0: 5d pop %rbp
1: 5a pop %rdx
2: 59 pop %rcx
3: c3 ret
4: 90 nop
5: 90 nop
6: 90 nop
7: 90 nop
8: 90 nop
9: 90 nop
a: 90 nop
b: 90 nop
c: 90 nop
d: 90 nop
e: 90 nop
f: 90 nop
10: 90 nop
11: 90 nop
12: 90 nop
13: 90 nop
14: 90 nop
15: 90 nop
[ 32.788871][ T3676] EAX: ffffffda EBX: 01e25d34 ECX: 01e25c00 EDX: 01e25c0c
[ 32.788873][ T3676] ESI: 01e25d34 EDI: 01e25c00 EBP: bffe5404 ESP: bffe52d8
[ 32.788874][ T3676] DS: 007b ES: 007b FS: 0000 GS: 0033 SS: 007b EFLAGS:
00000296
The kernel config and materials to reproduce are available at:
https://download.01.org/0day-ci/archive/20250807/[email protected]
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
