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Sat, 30 Aug 2025 06:56:43 +0000 Date: Sat, 30 Aug 2025 14:56:31 +0800 From: kernel test robot To: Marcos Del Sol Vives CC: , , , , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , , "H. 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[ 24.177788][ T2696] irq event stamp: 335112 [ 24.178030][ T2696] hardirqs last enabled at (335111): irqentry_exit (kernel/entry/common.c:210) [ 24.178521][ T2696] hardirqs last disabled at (335112): irqentry_enter (kernel/entry/common.c:?) [ 24.179004][ T2696] softirqs last enabled at (332212): __do_softirq (kernel/softirq.c:614) [ 24.179473][ T2696] softirqs last disabled at (332207): __do_softirq (kernel/softirq.c:614) [ 24.179948][ T2696] CPU: 1 UID: 65534 PID: 2696 Comm: trinity-c4 Tainted: G T 6.17.0-rc2-00017-g09c737e0df5a #1 VOLUNTARY [ 24.179952][ T2696] Tainted: [T]=RANDSTRUCT [ 24.179954][ T2696] Call Trace: [ 24.179956][ T2696] __dump_stack (lib/dump_stack.c:95) [ 24.179961][ T2696] dump_stack_lvl (lib/dump_stack.c:123) [ 24.179963][ T2696] ? nbcon_get_cpu_emergency_nesting (kernel/printk/nbcon.c:1375) [ 24.179967][ T2696] dump_stack (lib/dump_stack.c:129) [ 24.179969][ T2696] __might_resched (kernel/sched/core.c:8958) [ 24.179976][ T2696] __might_sleep (kernel/sched/core.c:8887) [ 24.179979][ T2696] __might_fault (mm/memory.c:6957) [ 24.179983][ T2696] _copy_from_user (include/linux/uaccess.h:?) [ 24.179991][ T2696] insn_fetch_from_user (include/linux/uaccess.h:212 arch/x86/lib/insn-eval.c:1516) [ 24.179995][ T2696] handle_invalid_op (arch/x86/kernel/traps.c:308) [ 24.180010][ T2696] ? exc_overflow (arch/x86/kernel/traps.c:417) [ 24.180012][ T2696] exc_invalid_op (arch/x86/kernel/traps.c:432) [ 24.180014][ T2696] handle_exception (arch/x86/entry/entry_32.S:1055) [ 24.180017][ T2696] EIP: 0x434433 [ 24.180025][ T2696] Code: d8 ba 3b ab 45 74 a5 5b 8a ef a2 59 f6 b5 0c b9 82 33 c3 f1 23 2e da 6f 60 f0 65 13 13 44 c5 b7 3a 06 f6 a2 3c 53 db 3b 28 30 ce 36 c2 77 c0 2b 9b fd 83 f2 04 89 08 45 5d 8b 0b c3 d0 8a 38 All code ======== 0: d8 ba 3b ab 45 74 fdivrs 0x7445ab3b(%rdx) 6: a5 movsl %ds:(%rsi),%es:(%rdi) 7: 5b pop %rbx 8: 8a ef mov %bh,%ch a: a2 59 f6 b5 0c b9 82 movabs %al,0xc33382b90cb5f659 11: 33 c3 13: f1 int1 14: 23 2e and (%rsi),%ebp 16: da 6f 60 fisubrl 0x60(%rdi) 19: f0 65 13 13 lock adc %gs:(%rbx),%edx 1d: 44 c5 b7 3a (bad) 21: 06 (bad) 22: f6 a2 3c 53 db 3b mulb 0x3bdb533c(%rdx) 28: 28 30 sub %dh,(%rax) 2a:* f0 ce lock (bad) <-- trapping instruction 2c: 36 c2 77 c0 ss ret $0xc077 30: 2b 9b fd 83 f2 04 sub 0x4f283fd(%rbx),%ebx 36: 89 08 mov %ecx,(%rax) 38: 45 5d rex.RB pop %r13 3a: 8b 0b mov (%rbx),%ecx 3c: c3 ret 3d: d0 .byte 0xd0 3e: 8a 38 mov (%rax),%bh Code starting with the faulting instruction =========================================== 0: f0 ce lock (bad) 2: 36 c2 77 c0 ss ret $0xc077 6: 2b 9b fd 83 f2 04 sub 0x4f283fd(%rbx),%ebx c: 89 08 mov %ecx,(%rax) e: 45 5d rex.RB pop %r13 10: 8b 0b mov (%rbx),%ecx 12: c3 ret 13: d0 .byte 0xd0 14: 8a 38 mov (%rax),%bh [ 24.180028][ T2696] EAX: 00400000 EBX: 00465000 ECX: 00058000 EDX: 00100000 [ 24.180030][ T2696] ESI: b72df000 EDI: b7f53234 EBP: b72df030 ESP: bfd7948c [ 24.180031][ T2696] DS: 007b ES: 007b FS: 0000 GS: 0033 SS: 007b EFLAGS: 00010246 [ 24.180036][ T2696] ? exc_overflow (arch/x86/kernel/traps.c:417) The kernel config and materials to reproduce are available at: https://download.01.org/0day-ci/archive/20250829/202508291620.bcfb3924-lkp@intel.com -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki