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[ 0.055319][ T0] Code: 56 8b 30 03 12 31 c9 39 d6 19 c9 b8 01 00 00 00 39 d6 77 02 89 c8 5e 5d 31 c9 31 d2 c3 b9 ed ff ff ff a8 07 75 5e 55 89 e5 56 <8b> 50 04 8b 30 0f ce 81 fe 12 01 f2 2f 74 28 b9 f7 ff ff ff 81 fe All code ======== 0: 56 push %rsi 1: 8b 30 mov (%rax),%esi 3: 03 12 add (%rdx),%edx 5: 31 c9 xor %ecx,%ecx 7: 39 d6 cmp %edx,%esi 9: 19 c9 sbb %ecx,%ecx b: b8 01 00 00 00 mov $0x1,%eax 10: 39 d6 cmp %edx,%esi 12: 77 02 ja 0x16 14: 89 c8 mov %ecx,%eax 16: 5e pop %rsi 17: 5d pop %rbp 18: 31 c9 xor %ecx,%ecx 1a: 31 d2 xor %edx,%edx 1c: c3 retq 1d: b9 ed ff ff ff mov $0xffffffed,%ecx 22: a8 07 test $0x7,%al 24: 75 5e jne 0x84 26: 55 push %rbp 27: 89 e5 mov %esp,%ebp 29: 56 push %rsi 2a:* 8b 50 04 mov 0x4(%rax),%edx <-- trapping instruction 2d: 8b 30 mov (%rax),%esi 2f: 0f ce bswap %esi 31: 81 fe 12 01 f2 2f cmp $0x2ff20112,%esi 37: 74 28 je 0x61 39: b9 f7 ff ff ff mov $0xfffffff7,%ecx 3e: 81 .byte 0x81 3f: fe .byte 0xfe Code starting with the faulting instruction =========================================== 0: 8b 50 04 mov 0x4(%rax),%edx 3: 8b 30 mov (%rax),%esi 5: 0f ce bswap %esi 7: 81 fe 12 01 f2 2f cmp $0x2ff20112,%esi d: 74 28 je 0x37 f: b9 f7 ff ff ff mov $0xfffffff7,%ecx 14: 81 .byte 0x81 15: fe .byte 0xfe [ 0.056594][ T0] EAX: 00000000 EBX: c27b018c ECX: ffffffed EDX: c27b018c [ 0.057045][ T0] ESI: 00000000 EDI: 00000010 EBP: c296bedc ESP: c296bed8 [ 0.057495][ T0] DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068 EFLAGS: 00210046 [ 0.058060][ T0] CR0: 80050033 CR2: 00000004 CR3: 03032000 CR4: 00000090 [ 0.058716][ T0] Call Trace: [ 0.059024][ T0] ? __die_body (arch/x86/kernel/dumpstack.c:478 arch/x86/kernel/dumpstack.c:420) [ 0.059420][ T0] ? __die (arch/x86/kernel/dumpstack.c:434) [ 0.059780][ T0] ? page_fault_oops (arch/x86/mm/fault.c:711) [ 0.060248][ T0] ? is_prefetch (arch/x86/mm/fault.c:119 arch/x86/mm/fault.c:132) [ 0.060672][ T0] ? kernelmode_fixup_or_oops (arch/x86/mm/fault.c:738) [ 0.061202][ T0] ? __bad_area_nosemaphore (arch/x86/mm/fault.c:785) [ 0.061710][ T0] ? bad_area_nosemaphore (arch/x86/mm/fault.c:834) [ 0.062185][ T0] ? do_user_addr_fault (arch/x86/mm/fault.c:?) [ 0.062678][ T0] ? trace_irq_disable (include/trace/events/preemptirq.h:36) [ 0.063149][ T0] ? exc_page_fault (arch/x86/include/asm/irqflags.h:19 arch/x86/include/asm/irqflags.h:87 arch/x86/include/asm/irqflags.h:147 arch/x86/mm/fault.c:1489 arch/x86/mm/fault.c:1539) [ 0.063595][ T0] ? pvclock_clocksource_read_nowd (arch/x86/mm/fault.c:1494) [ 0.064166][ T0] ? handle_exception (init_task.c:?) [ 0.064622][ T0] ? i2c_hid_irq (include/linux/pm_wakeup.h:213 drivers/hid/i2c-hid/i2c-hid-core.c:542 drivers/hid/i2c-hid/i2c-hid-core.c:556) [ 0.065042][ T0] ? pvclock_clocksource_read_nowd (arch/x86/mm/fault.c:1494) [ 0.065621][ T0] ? fdt_ro_probe_ (scripts/dtc/libfdt/libfdt.h:? lib/../scripts/dtc/libfdt/fdt.c:?) [ 0.066043][ T0] ? pvclock_clocksource_read_nowd (arch/x86/mm/fault.c:1494) [ 0.066624][ T0] ? fdt_ro_probe_ (scripts/dtc/libfdt/libfdt.h:? lib/../scripts/dtc/libfdt/fdt.c:?) [ 0.067049][ T0] fdt_path_offset_namelen (lib/../scripts/dtc/libfdt/fdt_ro.c:256) [ 0.067561][ T0] ? _raw_spin_unlock_irqrestore (include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) [ 0.068095][ T0] fdt_path_offset (lib/../scripts/dtc/libfdt/fdt_ro.c:300) [ 0.068502][ T0] fdt_scan_reserved_mem_reg_nodes (drivers/of/of_reserved_mem.c:192) [ 0.069054][ T0] ? copy_device_tree (drivers/of/fdt.c:1127) [ 0.069489][ T0] unflatten_device_tree (drivers/of/fdt.c:1243) [ 0.069940][ T0] unflatten_and_copy_device_tree (drivers/of/fdt.c:1262) [ 0.070441][ T0] x86_flattree_get_config (arch/x86/kernel/devicetree.c:313) [ 0.070908][ T0] setup_arch (arch/x86/kernel/setup.c:1100) [ 0.071284][ T0] ? vprintk (kernel/printk/printk_safe.c:?) [ 0.071632][ T0] ? _printk (kernel/printk/printk.c:2376) [ 0.071993][ T0] start_kernel (init/main.c:927) [ 0.072406][ T0] i386_start_kernel (arch/x86/kernel/head32.c:79) [ 0.072867][ T0] startup_32_smp (??:?) [ 0.073307][ T0] Modules linked in: [ 0.073675][ T0] CR2: 0000000000000004 [ 0.074063][ T0] ---[ end trace 0000000000000000 ]--- [ 0.074579][ T0] EIP: fdt_ro_probe_ (scripts/dtc/libfdt/libfdt.h:? lib/../scripts/dtc/libfdt/fdt.c:?) [ 0.075010][ T0] Code: 56 8b 30 03 12 31 c9 39 d6 19 c9 b8 01 00 00 00 39 d6 77 02 89 c8 5e 5d 31 c9 31 d2 c3 b9 ed ff ff ff a8 07 75 5e 55 89 e5 56 <8b> 50 04 8b 30 0f ce 81 fe 12 01 f2 2f 74 28 b9 f7 ff ff ff 81 fe All code ======== 0: 56 push %rsi 1: 8b 30 mov (%rax),%esi 3: 03 12 add (%rdx),%edx 5: 31 c9 xor %ecx,%ecx 7: 39 d6 cmp %edx,%esi 9: 19 c9 sbb %ecx,%ecx b: b8 01 00 00 00 mov $0x1,%eax 10: 39 d6 cmp %edx,%esi 12: 77 02 ja 0x16 14: 89 c8 mov %ecx,%eax 16: 5e pop %rsi 17: 5d pop %rbp 18: 31 c9 xor %ecx,%ecx 1a: 31 d2 xor %edx,%edx 1c: c3 retq 1d: b9 ed ff ff ff mov $0xffffffed,%ecx 22: a8 07 test $0x7,%al 24: 75 5e jne 0x84 26: 55 push %rbp 27: 89 e5 mov %esp,%ebp 29: 56 push %rsi 2a:* 8b 50 04 mov 0x4(%rax),%edx <-- trapping instruction 2d: 8b 30 mov (%rax),%esi 2f: 0f ce bswap %esi 31: 81 fe 12 01 f2 2f cmp $0x2ff20112,%esi 37: 74 28 je 0x61 39: b9 f7 ff ff ff mov $0xfffffff7,%ecx 3e: 81 .byte 0x81 3f: fe .byte 0xfe Code starting with the faulting instruction =========================================== 0: 8b 50 04 mov 0x4(%rax),%edx 3: 8b 30 mov (%rax),%esi 5: 0f ce bswap %esi 7: 81 fe 12 01 f2 2f cmp $0x2ff20112,%esi d: 74 28 je 0x37 f: b9 f7 ff ff ff mov $0xfffffff7,%ecx 14: 81 .byte 0x81 15: fe .byte 0xfe The kernel config and materials to reproduce are available at: https://download.01.org/0day-ci/archive/20240819/202408192157.8d8fe8a9-oliver.sang@intel.com -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki