====================================== | [ 664.617165][ C1] 1 lock held by swapper/1/0: | [ 664.617251][ C1] #0: ffffffffb5377c00 (rcu_callback){....}-{0:0}, at: rcu_do_batch (./include/linux/rcupdate.h:300 (discriminator 2) kernel/rcu/tree.c:2611 (discriminator 2)) | [ 664.617404][ C1] | [ 664.617404][ C1] stack backtrace: [ 664.617512][ C1] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 664.617514][ C1] Call Trace: [ 664.617516][ C1] [ 664.617517][ C1] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 664.617522][ C1] print_usage_bug.part.0.cold (kernel/locking/lockdep.c:4042) [ 664.617525][ C1] ? filter_irq_stacks (kernel/stacktrace.c:402) [ 664.617529][ C1] mark_lock_irq (kernel/locking/lockdep.c:4013 kernel/locking/lockdep.c:4056 kernel/locking/lockdep.c:4267) [ 664.617530][ C1] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1061 (discriminator 37) arch/x86/kernel/apic/apic.c:1061 (discriminator 37)) [ 664.617533][ C1] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:697) [ 664.617535][ C1] ? save_trace (kernel/locking/lockdep.c:589) [ 664.617537][ C1] mark_lock (kernel/locking/lockdep.c:4753) [ 664.617539][ C1] mark_usage (kernel/locking/lockdep.c:4642) [ 664.617541][ C1] __lock_acquire (kernel/locking/lockdep.c:5191) [ 664.617542][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3)) [ 664.617544][ C1] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 664.617548][ C1] lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1)) [ 664.617550][ C1] ? tcf_mirred_release (./include/linux/spinlock.h:342 net/sched/act_mirred.c:78) act_mirred [ 664.617552][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3)) [ 664.617554][ C1] ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22)) [ 664.617556][ C1] _raw_spin_lock (./include/linux/spinlock_api_smp.h:158 (discriminator 1) kernel/locking/spinlock.c:158 (discriminator 1)) [ 664.617557][ C1] ? tcf_mirred_release (./include/linux/spinlock.h:342 net/sched/act_mirred.c:78) act_mirred [ 664.617559][ C1] tcf_mirred_release (./include/linux/spinlock.h:342 net/sched/act_mirred.c:78) act_mirred [ 664.617561][ C1] tcf_action_rcu_free (net/sched/act_api.c:367 net/sched/act_api.c:378) [ 664.617562][ C1] ? rcu_do_batch (./include/linux/rcupdate.h:310 (discriminator 2) kernel/rcu/tree.c:2619 (discriminator 2)) [ 664.617564][ C1] rcu_do_batch (kernel/rcu/tree.c:2617) [ 664.617567][ C1] ? trace_rcu_batch_end (./include/trace/events/rcu.h:714 (discriminator 19)) [ 664.617569][ C1] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 664.617571][ C1] ? 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) [ 664.617572][ C1] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4411 (discriminator 2)) [ 664.617574][ C1] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472) [ 664.617575][ C1] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:178 (discriminator 6) kernel/locking/spinlock.c:198 (discriminator 6)) [ 664.617577][ C1] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:179 (discriminator 1) kernel/locking/spinlock.c:198 (discriminator 1)) [ 664.617579][ C1] rcu_core (kernel/rcu/tree.c:2869) [ 664.617581][ C1] handle_softirqs (kernel/softirq.c:622) [ 664.617582][ C1] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 664.617586][ C1] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535) [ 664.617587][ C1] ? _local_bh_enable (kernel/softirq.c:405 (discriminator 1)) [ 664.617589][ C1] __irq_exit_rcu (kernel/softirq.c:656 kernel/softirq.c:496 kernel/softirq.c:735) [ 664.617591][ C1] irq_exit_rcu (kernel/softirq.c:752) [ 664.617592][ C1] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1061 (discriminator 37) arch/x86/kernel/apic/apic.c:1061 (discriminator 37)) [ 664.617594][ C1] [ 664.617595][ C1] [ 664.617596][ C1] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:697) [ 664.617597][ C1] RIP: 0010:pv_native_safe_halt (./arch/x86/include/asm/irqflags.h:48 arch/x86/kernel/paravirt.c:62) [ 664.617600][ C1] 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 [ 664.617602][ C1] RSP: 0018:ffa0000000147de8 EFLAGS: 00000296 [ 664.617604][ C1] RAX: 000000000188ae95 RBX: ff11000001bb2340 RCX: ffffffffb20d9667 [ 664.617605][ C1] RDX: ff11000001bb2340 RSI: ffffffffb4e01bcb RDI: ffffffffb486f6c0 [ 664.617606][ C1] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 664.617607][ C1] R10: 0000000000000001 R11: 0000000000000001 R12: 1ff4000000028fc0 [ 664.617608][ C1] R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000000 [ 664.617610][ C1] ? cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199) [ 664.617613][ C1] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472) [ 664.617614][ C1] default_idle (./arch/x86/include/asm/paravirt.h:62 arch/x86/kernel/process.c:767) [ 664.617616][ C1] default_idle_call (kernel/sched/idle.c:122) [ 664.617618][ C1] cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199) [ 664.617620][ C1] ? arch_cpu_idle_exit+0x40/0x40 [ 664.617621][ C1] ? mark_tsc_async_resets (arch/x86/kernel/tsc_sync.c:49) [ 664.617624][ C1] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 664.617625][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3)) [ 664.617627][ C1] do_idle (kernel/sched/idle.c:352) [ 664.617629][ C1] cpu_startup_entry (kernel/sched/idle.c:451) [ 664.617630][ C1] start_secondary (arch/x86/kernel/smpboot.c:312) [ 664.617632][ C1] ? 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