====================================== | [ 18.533052][ C0] #0: ff1100000c48d778 (&mm->mmap_lock){++++}-{4:4}, at: do_mprotect_pkey (./include/linux/mmap_lock.h:554 mm/mprotect.c:867) | [ 18.533213][ C0] #1: ffffffffb6f77c00 (rcu_callback){....}-{0:0}, at: rcu_do_batch (./include/linux/rcupdate.h:300 (discriminator 2) kernel/rcu/tree.c:2611 (discriminator 2)) | [ 18.533377][ C0] | [ 18.533377][ C0] stack backtrace: [ 18.533494][ C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 18.533496][ C0] Call Trace: [ 18.533498][ C0] [ 18.533499][ C0] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 18.533504][ C0] print_usage_bug.part.0.cold (kernel/locking/lockdep.c:4042) [ 18.533507][ C0] ? filter_irq_stacks (kernel/stacktrace.c:402) [ 18.533510][ C0] mark_lock_irq (kernel/locking/lockdep.c:4013 kernel/locking/lockdep.c:4056 kernel/locking/lockdep.c:4267) [ 18.533512][ C0] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1061 (discriminator 37) arch/x86/kernel/apic/apic.c:1061 (discriminator 37)) [ 18.533514][ C0] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:697) [ 18.533516][ C0] ? save_trace (kernel/locking/lockdep.c:589) [ 18.533517][ C0] ? do_mmap (./include/linux/fs.h:1353 mm/mmap.c:425) [ 18.533521][ C0] mark_lock (kernel/locking/lockdep.c:4753) [ 18.533522][ C0] mark_usage (kernel/locking/lockdep.c:4642) [ 18.533524][ C0] __lock_acquire (kernel/locking/lockdep.c:5191) [ 18.533525][ C0] ? mark_held_locks (kernel/locking/lockdep.c:4325) [ 18.533527][ C0] ? rcu_do_batch (./include/linux/rcupdate.h:310 (discriminator 2) kernel/rcu/tree.c:2619 (discriminator 2)) [ 18.533529][ C0] lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1)) [ 18.533531][ C0] ? tcf_mirred_release (./include/linux/spinlock.h:342 net/sched/act_mirred.c:78) act_mirred [ 18.533533][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3)) [ 18.533535][ C0] ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22)) [ 18.533536][ C0] _raw_spin_lock (./include/linux/spinlock_api_smp.h:158 (discriminator 1) kernel/locking/spinlock.c:158 (discriminator 1)) [ 18.533538][ C0] ? tcf_mirred_release (./include/linux/spinlock.h:342 net/sched/act_mirred.c:78) act_mirred [ 18.533540][ C0] tcf_mirred_release (./include/linux/spinlock.h:342 net/sched/act_mirred.c:78) act_mirred [ 18.533541][ C0] tcf_action_rcu_free (net/sched/act_api.c:367 net/sched/act_api.c:378) [ 18.533543][ C0] ? rcu_do_batch (./include/linux/rcupdate.h:310 (discriminator 2) kernel/rcu/tree.c:2619 (discriminator 2)) [ 18.533545][ C0] rcu_do_batch (kernel/rcu/tree.c:2617) [ 18.533548][ C0] ? trace_rcu_batch_end (./include/trace/events/rcu.h:714 (discriminator 19)) [ 18.533550][ C0] ? mark_held_locks (kernel/locking/lockdep.c:4325) [ 18.533551][ C0] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4411 (discriminator 2)) [ 18.533553][ C0] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472) [ 18.533555][ C0] rcu_core (kernel/rcu/tree.c:2869) [ 18.533557][ C0] handle_softirqs (kernel/softirq.c:622) [ 18.533558][ C0] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 18.533561][ C0] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535) [ 18.533563][ C0] ? _local_bh_enable (kernel/softirq.c:405 (discriminator 1)) [ 18.533565][ C0] __irq_exit_rcu (kernel/softirq.c:656 kernel/softirq.c:496 kernel/softirq.c:735) [ 18.533566][ C0] irq_exit_rcu (kernel/softirq.c:752) [ 18.533568][ C0] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1061 (discriminator 37) arch/x86/kernel/apic/apic.c:1061 (discriminator 37)) [ 18.533569][ C0] [ 18.533570][ C0] [ 18.533571][ C0] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:697) [ 18.533572][ C0] RIP: 0010:_raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:178 (discriminator 12) kernel/locking/spinlock.c:198 (discriminator 12)) [ 18.533575][ C0] Code: f5 53 48 8b 74 24 10 48 89 fb 48 83 c7 18 e8 21 7e ca fd 48 89 df e8 a9 d4 ca fd f7 c5 00 02 00 00 75 1f 9c 58 f6 c4 02 75 2f 01 00 00 00 e8 30 62 bd fd 65 8b 05 29 0a fe 01 85 c0 74 12 5b All code ======== 0: f5 cmc 1: 53 push %rbx 2: 48 8b 74 24 10 mov 0x10(%rsp),%rsi 7: 48 89 fb mov %rdi,%rbx a: 48 83 c7 18 add $0x18,%rdi e: e8 21 7e ca fd call 0xfffffffffdca7e34 13: 48 89 df mov %rbx,%rdi 16: e8 a9 d4 ca fd call 0xfffffffffdcad4c4 1b: f7 c5 00 02 00 00 test $0x200,%ebp 21: 75 1f jne 0x42 23: 9c pushf 24: 58 pop %rax 25: f6 c4 02 test $0x2,%ah 28: 75 2f jne 0x59 2a:* bf 01 00 00 00 mov $0x1,%edi <-- trapping instruction 2f: e8 30 62 bd fd call 0xfffffffffdbd6264 34: 65 8b 05 29 0a fe 01 mov %gs:0x1fe0a29(%rip),%eax # 0x1fe0a64 3b: 85 c0 test %eax,%eax 3d: 74 12 je 0x51 3f: 5b pop %rbx Code starting with the faulting instruction =========================================== 0: bf 01 00 00 00 mov $0x1,%edi 5: e8 30 62 bd fd call 0xfffffffffdbd623a a: 65 8b 05 29 0a fe 01 mov %gs:0x1fe0a29(%rip),%eax # 0x1fe0a3a 11: 85 c0 test %eax,%eax 13: 74 12 je 0x27 15: 5b pop %rbx [ 18.533577][ C0] RSP: 0018:ffa0000000ca7678 EFLAGS: 00000246 [ 18.533579][ C0] RAX: 0000000000000092 RBX: ffffffffb719a080 RCX: ffffffffb6090613 [ 18.533581][ C0] RDX: ff11000004fc8040 RSI: ffffffffb6a01bcb RDI: ffffffffb646f6c0 [ 18.533581][ C0] RBP: 0000000000000286 R08: 0000000000000000 R09: 0000000000000000 [ 18.533582][ C0] R10: 0000000000000000 R11: 0000000000000001 R12: ff11000008d59f00 [ 18.533583][ C0] R13: 0000000000000286 R14: 0000000000000000 R15: 0000000000000001 [ 18.533585][ C0] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:178 (discriminator 6) kernel/locking/spinlock.c:198 (discriminator 6)) [ 18.533587][ C0] __create_object (mm/kmemleak.c:785 (discriminator 3)) [ 18.533590][ C0] kmem_cache_alloc_noprof (./include/linux/kmemleak.h:44 mm/slub.c:4575 mm/slub.c:4899 mm/slub.c:4906) [ 18.533593][ C0] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1)) [ 18.533595][ C0] mas_preallocate (lib/maple_tree.c:139 (discriminator 7) lib/maple_tree.c:1089 (discriminator 7) lib/maple_tree.c:4961 (discriminator 7)) [ 18.533598][ C0] ? mark_held_locks (kernel/locking/lockdep.c:4325) [ 18.533600][ C0] ? mas_wr_slot_store (lib/maple_tree.c:3228) [ 18.533602][ C0] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472) [ 18.533604][ C0] ? kmem_cache_alloc_noprof (mm/slub.c:4909 (discriminator 1)) [ 18.533606][ C0] ? lockdep_init_map_type (kernel/locking/lockdep.c:4973) [ 18.533608][ C0] __split_vma (mm/vma.h:577 mm/vma.c:529) [ 18.533610][ C0] ? commit_merge (./include/linux/maple_tree.h:791 (discriminator 3)) [ 18.533612][ C0] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3)) [ 18.533614][ C0] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 18.533616][ C0] ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2)) [ 18.533618][ C0] vma_modify (mm/vma.c:599 mm/vma.c:1699) [ 18.533619][ C0] vma_modify_flags (mm/vma.c:1719) [ 18.533621][ C0] ? do_vmi_munmap (mm/vma.c:1637 (discriminator 5)) [ 18.533623][ C0] ? do_raw_spin_lock (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:1301 ./include/asm-generic/qspinlock.h:111 kernel/locking/spinlock_debug.c:116) [ 18.533624][ C0] ? percpu_counter_add_batch (lib/percpu_counter.c:101 (discriminator 3) lib/percpu_counter.c:93 (discriminator 3)) [ 18.533629][ C0] ? filemap_map_pages (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) mm/filemap.c:3945 (discriminator 2)) [ 18.533632][ C0] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3)) [ 18.533634][ C0] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 18.533635][ C0] ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2)) [ 18.533637][ C0] mprotect_fixup (mm/mprotect.c:789) [ 18.533639][ C0] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 18.533641][ C0] ? change_protection (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 18.533642][ C0] ? mas_prev_slot (./include/linux/lockdep.h:249 lib/maple_tree.c:709 lib/maple_tree.c:715 lib/maple_tree.c:748 lib/maple_tree.c:3992) [ 18.533645][ C0] ? mas_next_slot (./include/linux/lockdep.h:249 lib/maple_tree.c:709 lib/maple_tree.c:715 lib/maple_tree.c:4173) [ 18.533649][ C0] do_mprotect_pkey (mm/mprotect.c:967) [ 18.533650][ C0] ? do_pte_missing (mm/memory.c:5900 mm/memory.c:6043 mm/memory.c:4566) [ 18.533653][ C0] ? mprotect_fixup (./include/linux/mm.h:1093) [ 18.533655][ C0] ? __pmd_alloc (./include/linux/mm.h:1682) [ 18.533656][ C0] ? lock_vma_under_rcu (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) mm/mmap_lock.c:329 (discriminator 2)) [ 18.533662][ C0] __x64_sys_mprotect (mm/mprotect.c:988 mm/mprotect.c:985 mm/mprotect.c:985) [ 18.533664][ C0] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472) [ 18.533665][ C0] ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89) [ 18.533667][ C0] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) [ 18.533668][ C0] ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1)) [ 18.533674][ C0] ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3)) [ 18.533676][ C0] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 18.533677][ C0] RIP: 0033:0x7f9755d918eb [ 18.533679][ C0] Code: 00 41 83 ca 40 0f 05 48 3d 00 f0 ff ff 76 94 f7 d8 89 05 c8 49 01 00 e9 72 ff ff ff 0f 1f 00 f3 0f 1e fa b8 0a 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8d 0d a5 49 01 00 f7 d8 89 01 48 83 All code ======== 0: 00 41 83 add %al,-0x7d(%rcx) 3: ca 40 0f lret $0xf40 6: 05 48 3d 00 f0 add $0xf0003d48,%eax b: ff (bad) c: ff 76 94 push -0x6c(%rsi) f: f7 d8 neg %eax 11: 89 05 c8 49 01 00 mov %eax,0x149c8(%rip) # 0x149df 17: e9 72 ff ff ff jmp 0xffffffffffffff8e 1c: 0f 1f 00 nopl (%rax) 1f: f3 0f 1e fa endbr64 23: b8 0a 00 00 00 mov $0xa,%eax 28: 0f 05 syscall 2a:* 48 3d 01 f0 ff ff cmp $0xfffffffffffff001,%rax <-- trapping instruction 30: 73 01 jae 0x33 32: c3 ret 33: 48 8d 0d a5 49 01 00 lea 0x149a5(%rip),%rcx # 0x149df 3a: f7 d8 neg %eax 3c: 89 01 mov %eax,(%rcx) 3e: 48 rex.W 3f: 83 .byte 0x83 Code starting with the faulting instruction =========================================== 0: 48 3d 01 f0 ff ff cmp $0xfffffffffffff001,%rax 6: 73 01 jae 0x9 8: c3 ret 9: 48 8d 0d a5 49 01 00 lea 0x149a5(%rip),%rcx # 0x149b5 10: f7 d8 neg %eax 12: 89 01 mov %eax,(%rcx) 14: 48 rex.W 15: 83 .byte 0x83 [ 18.533680][ C0] RSP: 002b:00007ffc2de40c18 EFLAGS: 00000202 ORIG_RAX: 000000000000000a [ 18.533682][ C0] RAX: ffffffffffffffda RBX: 00007f9755c99a60 RCX: 00007f9755d918eb [ 18.533683][ C0] RDX: 0000000000000001 RSI: 0000000000004000 RDI: 00007f9755b67000 [ 18.533684][ C0] RBP: 00007ffc2de40c30 R08: 00007f9755b67000 R09: 0000000000000000 [ 18.533684][ C0] R10: 00007f9755c99a60 R11: 0000000000000202 R12: 0000000000000001 [ 18.533685][ C0] R13: 0000000000000001 R14: 00007f9755da62e0 R15: 00007f9755da5da0 | [ 25.233318][ C3] RCU nest depth: 0, expected: 0 | [ 25.233413][ C3] INFO: lockdep is turned off. | [ 25.233494][ C3] Preemption disabled at: | [ 25.233495][ C3] 0x0 [ 25.233658][ C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 25.233660][ C3] Call Trace: [ 25.233661][ C3] [ 25.233663][ C3] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 25.233670][ C3] __might_resched.cold (kernel/sched/core.c:9163) [ 25.233674][ C3] ? default_idle_call (kernel/sched/idle.c:122) [ 25.233678][ C3] ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3)) [ 25.233682][ C3] ? start_secondary (arch/x86/kernel/smpboot.c:312) [ 25.233685][ C3] __mutex_lock (kernel/locking/mutex.c:623 kernel/locking/mutex.c:820) [ 25.233687][ C3] ? __tcf_chain_put (net/sched/cls_api.c:694) [ 25.233692][ C3] ? ww_mutex_lock (kernel/locking/mutex.c:933) [ 25.233695][ C3] ? __tcf_chain_put (net/sched/cls_api.c:694) [ 25.233697][ C3] __tcf_chain_put (net/sched/cls_api.c:694) [ 25.233698][ C3] ? free_percpu.part.0 (./include/linux/spinlock.h:408 (discriminator 3) mm/percpu.c:2283 (discriminator 3)) [ 25.233702][ C3] tcf_action_rcu_free (net/sched/act_api.c:130 net/sched/act_api.c:370 net/sched/act_api.c:378) [ 25.233704][ C3] ? rcu_do_batch (./include/linux/rcupdate.h:310 (discriminator 2) kernel/rcu/tree.c:2619 (discriminator 2)) [ 25.233707][ C3] rcu_do_batch (kernel/rcu/tree.c:2617) [ 25.233710][ C3] ? trace_rcu_batch_end (./include/trace/events/rcu.h:714 (discriminator 19)) [ 25.233712][ C3] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 25.233715][ C3] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 25.233717][ C3] ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:78) [ 25.233719][ C3] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:179 (discriminator 1) kernel/locking/spinlock.c:198 (discriminator 1)) [ 25.233721][ C3] rcu_core (kernel/rcu/tree.c:2869) [ 25.233723][ C3] handle_softirqs (kernel/softirq.c:622) [ 25.233731][ C3] ? clockevents_tick_resume (kernel/time/clockevents.c:193) [ 25.233734][ C3] ? _local_bh_enable (kernel/softirq.c:405 (discriminator 1)) [ 25.233736][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3)) [ 25.233738][ C3] ? lock_release (./include/trace/events/lock.h:69 (discriminator 22) kernel/locking/lockdep.c:5879 (discriminator 22)) [ 25.233740][ C3] __irq_exit_rcu (kernel/softirq.c:656 kernel/softirq.c:496 kernel/softirq.c:735) [ 25.233741][ C3] irq_exit_rcu (kernel/softirq.c:752) [ 25.233743][ C3] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1061 (discriminator 37) arch/x86/kernel/apic/apic.c:1061 (discriminator 37)) [ 25.233745][ C3] [ 25.233745][ C3] [ 25.233746][ C3] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:697) [ 25.233749][ C3] RIP: 0010:pv_native_safe_halt (./arch/x86/include/asm/irqflags.h:48 arch/x86/kernel/paravirt.c:62) [ 25.233751][ C3] Code: 48 8b 3d 44 d3 00 02 e8 1f 00 00 00 48 2b 05 c8 71 a3 00 c3 0f 1f 80 00 00 00 00 f3 0f 1e fa eb 07 0f 00 2d 43 f4 22 00 fb f4 0f 1f 40 d6 48 83 ec 20 8b 17 49 89 f8 83 e2 fe 41 89 d2 0f 01 All code ======== 0: 48 8b 3d 44 d3 00 02 mov 0x200d344(%rip),%rdi # 0x200d34b 7: e8 1f 00 00 00 call 0x2b c: 48 2b 05 c8 71 a3 00 sub 0xa371c8(%rip),%rax # 0xa371db 13: c3 ret 14: 0f 1f 80 00 00 00 00 nopl 0x0(%rax) 1b: f3 0f 1e fa endbr64 1f: eb 07 jmp 0x28 21: 0f 00 2d 43 f4 22 00 verw 0x22f443(%rip) # 0x22f46b 28: fb sti 29: f4 hlt 2a:* c3 ret <-- trapping instruction 2b: 0f 1f 40 d6 nopl -0x2a(%rax) 2f: 48 83 ec 20 sub $0x20,%rsp 33: 8b 17 mov (%rdi),%edx 35: 49 89 f8 mov %rdi,%r8 38: 83 e2 fe and $0xfffffffe,%edx 3b: 41 89 d2 mov %edx,%r10d 3e: 0f .byte 0xf 3f: 01 .byte 0x1 Code starting with the faulting instruction =========================================== 0: c3 ret 1: 0f 1f 40 d6 nopl -0x2a(%rax) 5: 48 83 ec 20 sub $0x20,%rsp 9: 8b 17 mov (%rdi),%edx b: 49 89 f8 mov %rdi,%r8 e: 83 e2 fe and $0xfffffffe,%edx 11: 41 89 d2 mov %edx,%r10d 14: 0f .byte 0xf 15: 01 .byte 0x1 [ 25.233753][ C3] RSP: 0018:ffa0000000167de8 EFLAGS: 00000246 [ 25.233756][ C3] RAX: 0000000000000003 RBX: ff11000001bd0040 RCX: 0000000000000001 [ 25.233758][ C3] RDX: 0000000000000003 RSI: ffffffffb646f640 RDI: ffffffffb3cd9667 [ 25.233759][ C3] RBP: 0000000000000000 R08: ffffffffb60694f1 R09: 1fe2200006a7639a [ 25.233759][ C3] R10: 0000000000000003 R11: 0000000000000000 R12: 1ff400000002cfc0 [ 25.233760][ C3] R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000000 [ 25.233761][ C3] ? ct_kernel_exit.constprop.0 (./include/linux/instrumented.h:97 kernel/context_tracking.c:124) [ 25.233763][ C3] ? cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199) [ 25.233766][ C3] default_idle (./arch/x86/include/asm/paravirt.h:62 arch/x86/kernel/process.c:767) [ 25.233768][ C3] default_idle_call (kernel/sched/idle.c:122) [ 25.233770][ C3] cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199) [ 25.233771][ C3] ? arch_cpu_idle_exit+0x40/0x40 [ 25.233773][ C3] ? mark_tsc_async_resets (arch/x86/kernel/tsc_sync.c:49) [ 25.233775][ C3] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 25.233776][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3)) [ 25.233778][ C3] do_idle (kernel/sched/idle.c:352) [ 25.233780][ C3] cpu_startup_entry (kernel/sched/idle.c:451) [ 25.233781][ C3] start_secondary (arch/x86/kernel/smpboot.c:312) [ 25.233783][ C3] ? set_cpu_sibling_map (./arch/x86/include/asm/smp.h:148 (discriminator 4)) Finger prints: mark_lock_irq:mark_lock:mark_usage:__lock_acquire:_raw_spin_lock __mutex_lock:__tcf_chain_put:tcf_action_rcu_free:rcu_do_batch:rcu_core