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Mon, 24 Mar 2025 06:15:02 +0000 Date: Mon, 24 Mar 2025 14:14:38 +0800 From: kernel test robot To: Mike Rapoport CC: , , Andrew Morton , Mark Brown , "Alexander Gordeev" , Andreas Larsson , "Andy Lutomirski" , Ard Biesheuvel , Arnd Bergmann , Borislav Betkov , Catalin Marinas , "David S. 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[ 0.479312][ T0] Oops: invalid opcode: 0000 [#1] PREEMPT SMP [ 0.479768][ T0] CPU: 0 UID: 0 PID: 0 Comm: swapper Not tainted 6.14.0-rc6-00357-g8268af309d07 #1 [ 0.480470][ T0] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.2-debian-1.16.2-1 04/01/2014 [ 0.481260][ T0] EIP: reserve_bootmem_region (include/linux/page-flags.h:536) [ 0.481683][ T0] Code: 5d c3 01 f1 89 c8 ba e1 38 f4 c3 e8 1e 37 8e fc 0f 0b b8 90 e2 62 c4 e8 e2 05 5e fc 01 f1 89 c8 ba be 85 f7 c3 e8 04 37 8e fc <0f> 0b b8 80 e2 62 c4 e8 c8 05 5e fc 55 89 e5 53 57 56 83 ec 10 89 All code ======== 0: 5d pop %rbp 1: c3 ret 2: 01 f1 add %esi,%ecx 4: 89 c8 mov %ecx,%eax 6: ba e1 38 f4 c3 mov $0xc3f438e1,%edx b: e8 1e 37 8e fc call 0xfffffffffc8e372e 10: 0f 0b ud2 12: b8 90 e2 62 c4 mov $0xc462e290,%eax 17: e8 e2 05 5e fc call 0xfffffffffc5e05fe 1c: 01 f1 add %esi,%ecx 1e: 89 c8 mov %ecx,%eax 20: ba be 85 f7 c3 mov $0xc3f785be,%edx 25: e8 04 37 8e fc call 0xfffffffffc8e372e 2a:* 0f 0b ud2 <-- trapping instruction 2c: b8 80 e2 62 c4 mov $0xc462e280,%eax 31: e8 c8 05 5e fc call 0xfffffffffc5e05fe 36: 55 push %rbp 37: 89 e5 mov %esp,%ebp 39: 53 push %rbx 3a: 57 push %rdi 3b: 56 push %rsi 3c: 83 ec 10 sub $0x10,%esp 3f: 89 .byte 0x89 Code starting with the faulting instruction =========================================== 0: 0f 0b ud2 2: b8 80 e2 62 c4 mov $0xc462e280,%eax 7: e8 c8 05 5e fc call 0xfffffffffc5e05d4 c: 55 push %rbp d: 89 e5 mov %esp,%ebp f: 53 push %rbx 10: 57 push %rdi 11: 56 push %rsi 12: 83 ec 10 sub $0x10,%esp 15: 89 .byte 0x89 [ 0.483177][ T0] EAX: 00000000 EBX: c425df50 ECX: 00000000 EDX: 00000000 [ 0.483712][ T0] ESI: 017ffc00 EDI: ffffffff EBP: c425df34 ESP: c425df2c [ 0.484248][ T0] DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068 EFLAGS: 00210046 [ 0.484846][ T0] CR0: 80050033 CR2: 00000000 CR3: 04b48000 CR4: 00000090 [ 0.485376][ T0] DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000 [ 0.485907][ T0] DR6: fffe0ff0 DR7: 00000400 [ 0.486253][ T0] Call Trace: [ 0.486494][ T0] ? __die_body (arch/x86/kernel/dumpstack.c:478) [ 0.486822][ T0] ? die (arch/x86/kernel/dumpstack.c:?) [ 0.487099][ T0] ? do_trap (arch/x86/kernel/traps.c:? arch/x86/kernel/traps.c:197) [ 0.487409][ T0] ? do_error_trap (arch/x86/kernel/traps.c:217) [ 0.487752][ T0] ? reserve_bootmem_region (include/linux/page-flags.h:536) [ 0.488153][ T0] ? exc_overflow (arch/x86/kernel/traps.c:301) [ 0.488490][ T0] ? handle_invalid_op (arch/x86/kernel/traps.c:254) [ 0.488869][ T0] ? reserve_bootmem_region (include/linux/page-flags.h:536) [ 0.489271][ T0] ? exc_invalid_op (arch/x86/kernel/traps.c:316) [ 0.489619][ T0] ? handle_exception (arch/x86/entry/entry_32.S:1055) [ 0.489996][ T0] ? exc_overflow (arch/x86/kernel/traps.c:301) [ 0.490332][ T0] ? reserve_bootmem_region (include/linux/page-flags.h:536) [ 0.490733][ T0] ? exc_overflow (arch/x86/kernel/traps.c:301) [ 0.491068][ T0] ? reserve_bootmem_region (include/linux/page-flags.h:536) [ 0.491470][ T0] memmap_init_reserved_pages (mm/memblock.c:2203) [ 0.491887][ T0] free_low_memory_core_early (mm/memblock.c:?) [ 0.492302][ T0] memblock_free_all (mm/memblock.c:2272 include/linux/atomic/atomic-arch-fallback.h:546 include/linux/atomic/atomic-long.h:123 include/linux/atomic/atomic-instrumented.h:3261 include/linux/mm.h:67 mm/memblock.c:2273) [ 0.492659][ T0] mem_init (arch/x86/mm/init_32.c:735) [ 0.492952][ T0] mm_core_init (mm/mm_init.c:2730) [ 0.493271][ T0] start_kernel (init/main.c:958) [ 0.493604][ T0] i386_start_kernel (arch/x86/kernel/head32.c:79) [ 0.493969][ T0] startup_32_smp (arch/x86/kernel/head_32.S:292) [ 0.494317][ T0] Modules linked in: [ 0.494604][ T0] ---[ end trace 0000000000000000 ]--- [ 0.495009][ T0] EIP: reserve_bootmem_region (include/linux/page-flags.h:536) [ 0.495422][ T0] Code: 5d c3 01 f1 89 c8 ba e1 38 f4 c3 e8 1e 37 8e fc 0f 0b b8 90 e2 62 c4 e8 e2 05 5e fc 01 f1 89 c8 ba be 85 f7 c3 e8 04 37 8e fc <0f> 0b b8 80 e2 62 c4 e8 c8 05 5e fc 55 89 e5 53 57 56 83 ec 10 89 All code ======== 0: 5d pop %rbp 1: c3 ret 2: 01 f1 add %esi,%ecx 4: 89 c8 mov %ecx,%eax 6: ba e1 38 f4 c3 mov $0xc3f438e1,%edx b: e8 1e 37 8e fc call 0xfffffffffc8e372e 10: 0f 0b ud2 12: b8 90 e2 62 c4 mov $0xc462e290,%eax 17: e8 e2 05 5e fc call 0xfffffffffc5e05fe 1c: 01 f1 add %esi,%ecx 1e: 89 c8 mov %ecx,%eax 20: ba be 85 f7 c3 mov $0xc3f785be,%edx 25: e8 04 37 8e fc call 0xfffffffffc8e372e 2a:* 0f 0b ud2 <-- trapping instruction 2c: b8 80 e2 62 c4 mov $0xc462e280,%eax 31: e8 c8 05 5e fc call 0xfffffffffc5e05fe 36: 55 push %rbp 37: 89 e5 mov %esp,%ebp 39: 53 push %rbx 3a: 57 push %rdi 3b: 56 push %rsi 3c: 83 ec 10 sub $0x10,%esp 3f: 89 .byte 0x89 Code starting with the faulting instruction =========================================== 0: 0f 0b ud2 2: b8 80 e2 62 c4 mov $0xc462e280,%eax 7: e8 c8 05 5e fc call 0xfffffffffc5e05d4 c: 55 push %rbp d: 89 e5 mov %esp,%ebp f: 53 push %rbx 10: 57 push %rdi 11: 56 push %rsi 12: 83 ec 10 sub $0x10,%esp 15: 89 .byte 0x89 The kernel config and materials to reproduce are available at: https://download.01.org/0day-ci/archive/20250324/202503241424.d16223ec-lkp@intel.com -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki