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[ 5.764999][ C0] #PF: supervisor read access in kernel mode [ 5.764999][ C0] #PF: error_code(0x0000) - not-present page [ 5.764999][ T1] pinctrl core: initialized pinctrl subsystem [ 5.764999][ C0] PGD 0 P4D 0 [ 5.764999][ C0] Oops: Oops: 0000 [#1] SMP NOPTI [ 5.764999][ C0] CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Tainted: G S 6.18.0-rc6-00035-geb2db043ab3a #1 VOLUNTARY [ 5.764999][ C0] Tainted: [S]=CPU_OUT_OF_SPEC [ 5.764999][ C0] Hardware name: Intel Corporation ............/S9200WKBRD2, BIOS SE5C620.86B.0D.01.0552.060220191912 06/02/2019 [ 5.764999][ C0] RIP: 0010:sched_balance_rq (arch/x86/include/asm/atomic.h:107 (discriminator 4) include/linux/atomic/atomic-arch-fallback.h:2170 (discriminator 4) include/linux/atomic/atomic-instrumented.h:1302 (discriminator 4) kernel/sched/fair.c:11733 (discriminator 4)) [ 5.764999][ C0] Code: b8 00 00 00 65 48 2b 15 c2 47 a7 02 0f 85 30 03 00 00 48 81 c4 c0 00 00 00 89 f0 5b 5d 41 5c 41 5d 41 5e 41 5f e9 bc fb f5 00 <8b> 04 25 00 00 00 00 ba 01 00 00 00 f0 0f b1 15 58 d6 af 02 0f 94 All code ======== 0: b8 00 00 00 65 mov $0x65000000,%eax 5: 48 2b 15 c2 47 a7 02 sub 0x2a747c2(%rip),%rdx # 0x2a747ce c: 0f 85 30 03 00 00 jne 0x342 12: 48 81 c4 c0 00 00 00 add $0xc0,%rsp 19: 89 f0 mov %esi,%eax 1b: 5b pop %rbx 1c: 5d pop %rbp 1d: 41 5c pop %r12 1f: 41 5d pop %r13 21: 41 5e pop %r14 23: 41 5f pop %r15 25: e9 bc fb f5 00 jmp 0xf5fbe6 2a:* 8b 04 25 00 00 00 00 mov 0x0,%eax <-- trapping instruction 31: ba 01 00 00 00 mov $0x1,%edx 36: f0 0f b1 15 58 d6 af lock cmpxchg %edx,0x2afd658(%rip) # 0x2afd696 3d: 02 3e: 0f .byte 0xf 3f: 94 xchg %eax,%esp Code starting with the faulting instruction =========================================== 0: 8b 04 25 00 00 00 00 mov 0x0,%eax 7: ba 01 00 00 00 mov $0x1,%edx c: f0 0f b1 15 58 d6 af lock cmpxchg %edx,0x2afd658(%rip) # 0x2afd66c 13: 02 14: 0f .byte 0xf 15: 94 xchg %eax,%esp [ 5.764999][ C0] RSP: 0000:ffffc90000003e30 EFLAGS: 00010202 [ 5.764999][ C0] RAX: 0000000000000001 RBX: ffff8881002c2ba0 RCX: 0000000000000000 [ 5.764999][ C0] RDX: ffff8881002dbc01 RSI: 00000000000000c0 RDI: 00000000000000c0 [ 5.764999][ C0] RBP: 0000000000000000 R08: ffff8881002dbcc0 R09: ffff8881002c2020 [ 5.764999][ C0] R10: 00ffffff00000000 R11: 0000000000000000 R12: 0000000000000000 [ 5.764999][ C0] R13: ffffc90000003ed8 R14: ffffc90000003e80 R15: ffffc90000003f4c [ 5.764999][ C0] FS: 0000000000000000(0000) GS:ffff888ccb7f2000(0000) knlGS:0000000000000000 [ 5.764999][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 5.764999][ C0] CR2: 0000000000000000 CR3: 0000002c7de24001 CR4: 00000000007706f0 [ 5.764999][ C0] PKRU: 55555554 [ 5.764999][ C0] Call Trace: [ 5.764999][ C0] [ 5.764999][ C0] ? rcu_do_batch (kernel/rcu/tree.c:2612 (discriminator 1)) [ 5.764999][ C0] sched_balance_domains (kernel/sched/fair.c:12186 (discriminator 1)) [ 5.764999][ C0] ? sched_balance_update_blocked_averages (arch/x86/include/asm/irqflags.h:158 (discriminator 1) kernel/sched/sched.h:1577 (discriminator 1) kernel/sched/sched.h:1884 (discriminator 1) kernel/sched/fair.c:9857 (discriminator 1)) [ 5.764999][ C0] handle_softirqs (arch/x86/include/asm/jump_label.h:36 include/trace/events/irq.h:142 kernel/softirq.c:623) [ 5.764999][ C0] __irq_exit_rcu (kernel/softirq.c:657 kernel/softirq.c:496 kernel/softirq.c:723) [ 5.764999][ C0] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1052 (discriminator 35) arch/x86/kernel/apic/apic.c:1052 (discriminator 35)) [ 5.764999][ C0] [ 5.764999][ C0] [ 5.764999][ C0] asm_sysvec_apic_timer_interrupt (arch/x86/include/asm/idtentry.h:697) [ 5.764999][ C0] RIP: 0010:mwait_idle (arch/x86/include/asm/irqflags.h:37 arch/x86/include/asm/irqflags.h:114 arch/x86/kernel/process.c:930) [ 5.764999][ C0] Code: 2d c0 8e 10 00 f0 80 0e 40 48 8b 06 a8 10 75 1b 48 89 f0 0f 1f 00 31 c9 89 ca 0f 01 c8 48 8b 06 a8 10 75 07 89 c8 fb 0f 01 c9 f0 80 26 bf e9 c5 e1 00 00 0f 1f 44 00 00 66 66 2e 0f 1f 84 00 All code ======== 0: 2d c0 8e 10 00 sub $0x108ec0,%eax 5: f0 80 0e 40 lock orb $0x40,(%rsi) 9: 48 8b 06 mov (%rsi),%rax c: a8 10 test $0x10,%al e: 75 1b jne 0x2b 10: 48 89 f0 mov %rsi,%rax 13: 0f 1f 00 nopl (%rax) 16: 31 c9 xor %ecx,%ecx 18: 89 ca mov %ecx,%edx 1a: 0f 01 c8 monitor %rax,%ecx,%edx 1d: 48 8b 06 mov (%rsi),%rax 20: a8 10 test $0x10,%al 22: 75 07 jne 0x2b 24: 89 c8 mov %ecx,%eax 26: fb sti 27: 0f 01 c9 mwait %eax,%ecx 2a:* fa cli <-- trapping instruction 2b: f0 80 26 bf lock andb $0xbf,(%rsi) 2f: e9 c5 e1 00 00 jmp 0xe1f9 34: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1) 39: 66 data16 3a: 66 data16 3b: 2e cs 3c: 0f .byte 0xf 3d: 1f (bad) 3e: 84 00 test %al,(%rax) Code starting with the faulting instruction =========================================== 0: fa cli 1: f0 80 26 bf lock andb $0xbf,(%rsi) 5: e9 c5 e1 00 00 jmp 0xe1cf a: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1) f: 66 data16 10: 66 data16 11: 2e cs 12: 0f .byte 0xf 13: 1f (bad) 14: 84 00 test %al,(%rax) [ 5.764999][ C0] RSP: 0000:ffffffff82e03e90 EFLAGS: 00000246 [ 5.764999][ C0] RAX: 0000000000000000 RBX: ffffffff82e12940 RCX: 0000000000000000 [ 5.764999][ C0] RDX: 0000000000000000 RSI: ffffffff82e12940 RDI: 0000000001655ddc [ 5.764999][ C0] RBP: 0000000000000000 R08: 0000000000000000 R09: ffff888105016728 [ 5.764999][ C0] R10: 000000000000001d R11: 0000000000000011 R12: 0000000000000000 [ 5.764999][ C0] R13: 0000000000000000 R14: 0000000000000000 R15: 0000002c7fff1000 [ 5.764999][ C0] default_idle_call (include/linux/cpuidle.h:144 kernel/sched/idle.c:123) [ 5.764999][ C0] cpuidle_idle_call (kernel/sched/idle.c:191) [ 5.764999][ C0] do_idle (kernel/sched/idle.c:332) [ 5.764999][ C0] cpu_startup_entry (kernel/sched/idle.c:427) [ 5.764999][ C0] rest_init (init/main.c:757) [ 5.764999][ C0] start_kernel (init/main.c:1111) [ 5.764999][ C0] x86_64_start_reservations (arch/x86/kernel/head64.c:310) [ 5.764999][ C0] x86_64_start_kernel (??:?) [ 5.764999][ C0] common_startup_64 (arch/x86/kernel/head_64.S:419) [ 5.764999][ C0] [ 5.764999][ C0] Modules linked in: [ 5.764999][ C0] CR2: 0000000000000000 [ 5.764999][ C0] ---[ end trace 0000000000000000 ]--- The kernel config and materials to reproduce are available at: https://download.01.org/0day-ci/archive/20251127/202511271605.bd46ddc3-lkp@intel.com -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki