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SN7PR11MB6797 X-OriginatorOrg: intel.com Hello, kernel test robot noticed "BUG:kernel_NULL_pointer_dereference,address" on: commit: 9734e25fbf5ae68eb04234b2cd14a4b36ab89141 ("perf: Fix the throttle logic for a group") https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master [test failed on linus/master 66701750d5565c574af42bef0b789ce0203e3071] [test failed on linux-next/master 3f804361f3b9af33e00b90ec9cb5afcc96831e60] [test failed on fix commit bc4394e5e79cdda1b0997e0be1d65e242f523f02] in testcase: stress-ng version: stress-ng-x86_64-f76f86ffb-1_20250412 with following parameters: nr_threads: 100% testtime: 60s test: memthrash cpufreq_governor: performance config: x86_64-rhel-9.4 compiler: gcc-12 test machine: 192 threads 2 sockets Intel(R) Xeon(R) Platinum 8468V CPU @ 2.4GHz (Sapphire Rapids) with 384G memory (please refer to attached dmesg/kmsg for entire log/backtrace) 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 | Closes: https://lore.kernel.org/oe-lkp/202507042103.a15d2923-lkp@intel.com [ 93.379225][ C143] BUG: kernel NULL pointer dereference, address: 00000000000000f0 [ 93.379247][ C143] #PF: supervisor read access in kernel mode [ 93.379253][ C143] #PF: error_code(0x0000) - not-present page [ 93.379259][ C143] PGD 161558067 P4D 0 [ 93.379263][ C143] Oops: Oops: 0000 [#1] SMP NOPTI [ 93.379274][ C143] CPU: 143 UID: 0 PID: 3944 Comm: perf Not tainted 6.15.0-rc3-00069-g9734e25fbf5a #1 VOLUNTARY [ 93.379281][ C143] Hardware name: KAYTUS NF5280-M7-A0-R0-00/NF5280-M7-A0-R0-00, BIOS 06.08.01 12/24/2024 [ 93.379286][ C143] RIP: 0010:setup_pebs_adaptive_sample_data (kbuild/obj/consumer/x86_64-rhel-9.4/arch/x86/events/intel/ds.c:2083) [ 93.379325][ C143] Code: 04 24 48 85 d2 0f 84 81 02 00 00 49 89 d5 49 89 fe 49 89 f4 48 89 ce 49 c7 80 a8 00 00 00 00 00 00 00 8b 02 4c 89 c5 48 89 cb <4c> 8b bf f0 00 00 00 89 44 24 0c 48 89 44 24 10 48 8b 87 08 02 00 All code ======== 0: 04 24 add $0x24,%al 2: 48 85 d2 test %rdx,%rdx 5: 0f 84 81 02 00 00 je 0x28c b: 49 89 d5 mov %rdx,%r13 e: 49 89 fe mov %rdi,%r14 11: 49 89 f4 mov %rsi,%r12 14: 48 89 ce mov %rcx,%rsi 17: 49 c7 80 a8 00 00 00 movq $0x0,0xa8(%r8) 1e: 00 00 00 00 22: 8b 02 mov (%rdx),%eax 24: 4c 89 c5 mov %r8,%rbp 27: 48 89 cb mov %rcx,%rbx 2a:* 4c 8b bf f0 00 00 00 mov 0xf0(%rdi),%r15 <-- trapping instruction 31: 89 44 24 0c mov %eax,0xc(%rsp) 35: 48 89 44 24 10 mov %rax,0x10(%rsp) 3a: 48 rex.W 3b: 8b .byte 0x8b 3c: 87 08 xchg %ecx,(%rax) 3e: 02 00 add (%rax),%al Code starting with the faulting instruction =========================================== 0: 4c 8b bf f0 00 00 00 mov 0xf0(%rdi),%r15 7: 89 44 24 0c mov %eax,0xc(%rsp) b: 48 89 44 24 10 mov %rax,0x10(%rsp) 10: 48 rex.W 11: 8b .byte 0x8b 12: 87 08 xchg %ecx,(%rax) 14: 02 00 add (%rax),%al [ 93.379327][ C143] RSP: 0018:fffffe00021028f0 EFLAGS: 00010082 [ 93.379332][ C143] RAX: 0000000000000001 RBX: fffffe0002102c80 RCX: fffffe0002102c80 [ 93.379338][ C143] RDX: fffffe0002121040 RSI: fffffe0002102c80 RDI: 0000000000000000 [ 93.379340][ C143] RBP: fffffe0002102970 R08: fffffe0002102970 R09: 0000000000000001 [ 93.379345][ C143] R10: 0000000000000013 R11: 0000000000000008 R12: fffffe0002102ef8 [ 93.379349][ C143] R13: fffffe0002121040 R14: 0000000000000000 R15: ff110001a0a69500 [ 93.379356][ C143] FS: 00007f539e726840(0000) GS:ff1100303c39f000(0000) knlGS:0000000000000000 [ 93.379359][ C143] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 93.379362][ C143] CR2: 00000000000000f0 CR3: 0000000180052002 CR4: 0000000000f73ff0 [ 93.379363][ C143] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 93.379364][ C143] DR3: 0000000000000000 DR6: 00000000fffe07f0 DR7: 0000000000000400 [ 93.379365][ C143] PKRU: 55555554 [ 93.379366][ C143] Call Trace: [ 93.379377][ C143] [ 93.379380][ C143] ? x86_perf_event_set_period (kbuild/obj/consumer/x86_64-rhel-9.4/arch/x86/events/core.c:1442) [ 93.379410][ C143] intel_pmu_drain_pebs_icl (kbuild/obj/consumer/x86_64-rhel-9.4/arch/x86/events/intel/ds.c:2356 kbuild/obj/consumer/x86_64-rhel-9.4/arch/x86/events/intel/ds.c:2666) [ 93.379424][ C143] ? shmem_write_end (kbuild/obj/consumer/x86_64-rhel-9.4/arch/x86/include/asm/bitops.h:55 kbuild/obj/consumer/x86_64-rhel-9.4/include/asm-generic/bitops/instrumented-atomic.h:29 kbuild/obj/consumer/x86_64-rhel-9.4/include/linux/page-flags.h:835 kbuild/obj/consumer/x86_64-rhel-9.4/mm/shmem.c:3319) [ 93.379436][ C143] handle_pmi_common (kbuild/obj/consumer/x86_64-rhel-9.4/arch/x86/events/intel/core.c:3206) [ 93.379440][ C143] ? shmem_write_end (kbuild/obj/consumer/x86_64-rhel-9.4/arch/x86/include/asm/bitops.h:55 kbuild/obj/consumer/x86_64-rhel-9.4/include/asm-generic/bitops/instrumented-atomic.h:29 kbuild/obj/consumer/x86_64-rhel-9.4/include/linux/page-flags.h:835 kbuild/obj/consumer/x86_64-rhel-9.4/mm/shmem.c:3319) [ 93.379443][ C143] ? set_pte_vaddr_p4d (kbuild/obj/consumer/x86_64-rhel-9.4/arch/x86/mm/init_64.c:307 kbuild/obj/consumer/x86_64-rhel-9.4/arch/x86/mm/init_64.c:315) [ 93.379462][ C143] ? flush_tlb_one_kernel (kbuild/obj/consumer/x86_64-rhel-9.4/arch/x86/include/asm/paravirt.h:85 kbuild/obj/consumer/x86_64-rhel-9.4/arch/x86/mm/tlb.c:1544 kbuild/obj/consumer/x86_64-rhel-9.4/arch/x86/mm/tlb.c:1499) [ 93.379489][ C143] ? native_set_fixmap (kbuild/obj/consumer/x86_64-rhel-9.4/arch/x86/mm/pgtable.c:652 kbuild/obj/consumer/x86_64-rhel-9.4/arch/x86/mm/pgtable.c:661) [ 93.379492][ C143] ? ghes_copy_tofrom_phys (kbuild/obj/consumer/x86_64-rhel-9.4/drivers/acpi/apei/ghes.c:345) [ 93.379500][ C143] ? __ghes_peek_estatus+0x49/0xb0 [ 93.379503][ C143] intel_pmu_handle_irq (kbuild/obj/consumer/x86_64-rhel-9.4/arch/x86/include/asm/msr.h:86 kbuild/obj/consumer/x86_64-rhel-9.4/arch/x86/include/asm/msr.h:120 kbuild/obj/consumer/x86_64-rhel-9.4/arch/x86/events/intel/core.c:2504 kbuild/obj/consumer/x86_64-rhel-9.4/arch/x86/events/intel/core.c:3351) [ 93.379507][ C143] perf_event_nmi_handler (kbuild/obj/consumer/x86_64-rhel-9.4/arch/x86/events/core.c:1767 kbuild/obj/consumer/x86_64-rhel-9.4/arch/x86/events/core.c:1753) [ 93.379518][ C143] nmi_handle (kbuild/obj/consumer/x86_64-rhel-9.4/arch/x86/kernel/nmi.c:184) [ 93.379529][ C143] default_do_nmi (kbuild/obj/consumer/x86_64-rhel-9.4/arch/x86/kernel/nmi.c:152 kbuild/obj/consumer/x86_64-rhel-9.4/arch/x86/kernel/nmi.c:393) [ 93.379541][ C143] exc_nmi (kbuild/obj/consumer/x86_64-rhel-9.4/arch/x86/kernel/nmi.c:588) [ 93.379545][ C143] end_repeat_nmi (kbuild/obj/consumer/x86_64-rhel-9.4/arch/x86/entry/entry_64.S:1409) [ 93.379558][ C143] RIP: 0010:shmem_write_end (kbuild/obj/consumer/x86_64-rhel-9.4/mm/shmem.c:3321) [ 93.379564][ C143] Code: 48 8b 13 83 e2 08 75 41 48 8b 13 83 e2 40 ba 00 10 00 00 74 0c 0f b6 4b 40 ba 00 10 00 00 48 d3 e2 48 39 d0 72 25 f0 80 0b 08 <48> 89 df e8 23 fd fd ff 48 89 df e8 db 1e fd ff f0 ff 4b 34 74 54 All code ======== 0: 48 8b 13 mov (%rbx),%rdx 3: 83 e2 08 and $0x8,%edx 6: 75 41 jne 0x49 8: 48 8b 13 mov (%rbx),%rdx b: 83 e2 40 and $0x40,%edx e: ba 00 10 00 00 mov $0x1000,%edx 13: 74 0c je 0x21 15: 0f b6 4b 40 movzbl 0x40(%rbx),%ecx 19: ba 00 10 00 00 mov $0x1000,%edx 1e: 48 d3 e2 shl %cl,%rdx 21: 48 39 d0 cmp %rdx,%rax 24: 72 25 jb 0x4b 26: f0 80 0b 08 lock orb $0x8,(%rbx) 2a:* 48 89 df mov %rbx,%rdi <-- trapping instruction 2d: e8 23 fd fd ff call 0xfffffffffffdfd55 32: 48 89 df mov %rbx,%rdi 35: e8 db 1e fd ff call 0xfffffffffffd1f15 3a: f0 ff 4b 34 lock decl 0x34(%rbx) 3e: 74 54 je 0x94 Code starting with the faulting instruction =========================================== 0: 48 89 df mov %rbx,%rdi 3: e8 23 fd fd ff call 0xfffffffffffdfd2b 8: 48 89 df mov %rbx,%rdi b: e8 db 1e fd ff call 0xfffffffffffd1eeb 10: f0 ff 4b 34 lock decl 0x34(%rbx) 14: 74 54 je 0x6a [ 93.379572][ C143] RSP: 0018:ffa00000187bfd48 EFLAGS: 00000206 [ 93.379575][ C143] RAX: 0000000000001000 RBX: ffd4000005435680 RCX: 0000000001128000 [ 93.379580][ C143] RDX: 0000000000001000 RSI: 0000000001127000 RDI: ff1100011221d8c0 [ 93.379580][ C143] RBP: 0000000000001000 R08: 0000000000001000 R09: ffd4000005435680 [ 93.379581][ C143] R10: 0000000000000001 R11: 0000000000000003 R12: ff1100014115e5d0 [ 93.379588][ C143] R13: 0000000000001000 R14: 0000000000000000 R15: 0000000000001000 [ 93.379592][ C143] ? shmem_write_end (kbuild/obj/consumer/x86_64-rhel-9.4/mm/shmem.c:3321) [ 93.379600][ C143] ? shmem_write_end (kbuild/obj/consumer/x86_64-rhel-9.4/mm/shmem.c:3321) [ 93.379604][ C143] [ 93.379605][ C143] [ 93.379607][ C143] generic_perform_write (kbuild/obj/consumer/x86_64-rhel-9.4/mm/filemap.c:4124) [ 93.379633][ C143] shmem_file_write_iter (kbuild/obj/consumer/x86_64-rhel-9.4/mm/shmem.c:3464) [ 93.379636][ C143] vfs_write (kbuild/obj/consumer/x86_64-rhel-9.4/fs/read_write.c:591 kbuild/obj/consumer/x86_64-rhel-9.4/fs/read_write.c:684) [ 93.379644][ C143] ksys_write (kbuild/obj/consumer/x86_64-rhel-9.4/fs/read_write.c:736) [ 93.379651][ C143] do_syscall_64 (kbuild/obj/consumer/x86_64-rhel-9.4/arch/x86/entry/syscall_64.c:63 kbuild/obj/consumer/x86_64-rhel-9.4/arch/x86/entry/syscall_64.c:94) [ 93.379656][ C143] ? exc_page_fault (kbuild/obj/consumer/x86_64-rhel-9.4/arch/x86/include/asm/irqflags.h:37 kbuild/obj/consumer/x86_64-rhel-9.4/arch/x86/include/asm/irqflags.h:114 kbuild/obj/consumer/x86_64-rhel-9.4/arch/x86/mm/fault.c:1488 kbuild/obj/consumer/x86_64-rhel-9.4/arch/x86/mm/fault.c:1538) [ 93.379659][ C143] entry_SYSCALL_64_after_hwframe (kbuild/obj/consumer/x86_64-rhel-9.4/arch/x86/entry/entry_64.S:130) [ 93.379662][ C143] RIP: 0033:0x7f53aa05f27f [ 93.379672][ C143] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 39 d5 f8 ff 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 8c d5 f8 ff 48 All code ======== 0: 89 54 24 18 mov %edx,0x18(%rsp) 4: 48 89 74 24 10 mov %rsi,0x10(%rsp) 9: 89 7c 24 08 mov %edi,0x8(%rsp) d: e8 39 d5 f8 ff call 0xfffffffffff8d54b 12: 48 8b 54 24 18 mov 0x18(%rsp),%rdx 17: 48 8b 74 24 10 mov 0x10(%rsp),%rsi 1c: 41 89 c0 mov %eax,%r8d 1f: 8b 7c 24 08 mov 0x8(%rsp),%edi 23: b8 01 00 00 00 mov $0x1,%eax 28: 0f 05 syscall 2a:* 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax <-- trapping instruction 30: 77 31 ja 0x63 32: 44 89 c7 mov %r8d,%edi 35: 48 89 44 24 08 mov %rax,0x8(%rsp) 3a: e8 8c d5 f8 ff call 0xfffffffffff8d5cb 3f: 48 rex.W Code starting with the faulting instruction =========================================== 0: 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax 6: 77 31 ja 0x39 8: 44 89 c7 mov %r8d,%edi b: 48 89 44 24 08 mov %rax,0x8(%rsp) 10: e8 8c d5 f8 ff call 0xfffffffffff8d5a1 15: 48 rex.W The kernel config and materials to reproduce are available at: https://download.01.org/0day-ci/archive/20250704/202507042103.a15d2923-lkp@intel.com -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki