====================================== | [ 5263.261034][ C0] 1 lock held by swapper/0/0: | [ 5263.261233][ C0] #0: ffffffff9ef8d440 (rcu_callback){....}-{0:0}, at: rcu_do_batch (./include/linux/rcupdate.h:331 kernel/rcu/tree.c:2570) | [ 5263.261595][ C0] | [ 5263.261595][ C0] stack backtrace: [ 5263.261862][ C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 5263.261864][ C0] Call Trace: [ 5263.261866][ C0] [ 5263.261868][ C0] dump_stack_lvl (lib/dump_stack.c:123) [ 5263.261874][ C0] print_usage_bug.part.0 (kernel/locking/lockdep.c:4048) [ 5263.261879][ C0] mark_lock_irq (kernel/locking/lockdep.c:4013 kernel/locking/lockdep.c:4059 kernel/locking/lockdep.c:4270) [ 5263.261886][ C0] mark_lock (kernel/locking/lockdep.c:4756) [ 5263.261890][ C0] mark_usage (kernel/locking/lockdep.c:4645) [ 5263.261893][ C0] __lock_acquire (kernel/locking/lockdep.c:5194) [ 5263.261897][ C0] ? find_held_lock (kernel/locking/lockdep.c:5353) [ 5263.261901][ C0] lock_acquire.part.0 (kernel/locking/lockdep.c:473 kernel/locking/lockdep.c:5873) [ 5263.261904][ C0] ? xa_set_mark (lib/xarray.c:2076 lib/xarray.c:2146) [ 5263.261909][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) [ 5263.261914][ C0] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5834) [ 5263.261917][ C0] ? xa_set_mark (lib/xarray.c:2076 lib/xarray.c:2146) [ 5263.261921][ C0] _raw_spin_lock (./include/linux/spinlock_api_smp.h:134 kernel/locking/spinlock.c:154) [ 5263.261924][ C0] ? xa_set_mark (lib/xarray.c:2076 lib/xarray.c:2146) [ 5263.261928][ C0] xa_set_mark (lib/xarray.c:2076 lib/xarray.c:2146) [ 5263.261931][ C0] ? __pfx_xa_set_mark (lib/xarray.c:2144) [ 5263.261934][ C0] ? __lock_acquire (kernel/locking/lockdep.c:5240) [ 5263.261940][ C0] ? find_held_lock (kernel/locking/lockdep.c:5353) [ 5263.261943][ C0] ref_tracker_dir_exit (lib/ref_tracker.c:54 lib/ref_tracker.c:223) [ 5263.261947][ C0] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) [ 5263.261950][ C0] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:213) [ 5263.261953][ C0] ? ref_tracker_free (lib/ref_tracker.c:281) [ 5263.261956][ C0] ? __lock_acquire (kernel/locking/lockdep.c:5240) [ 5263.261959][ C0] ? __pfx_ref_tracker_free (lib/ref_tracker.c:281) [ 5263.261962][ C0] ? __sk_destruct (./include/linux/instrumented.h:96 ./include/linux/atomic/atomic-instrumented.h:400 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/refcount.h:450 ./include/net/net_namespace.h:287 ./include/net/net_namespace.h:390 net/core/sock.c:2368) [ 5263.261966][ C0] ? rcu_do_batch (kernel/rcu/tree.c:2576) [ 5263.261969][ C0] ? rcu_core (kernel/rcu/tree.c:2834) [ 5263.261972][ C0] ? handle_softirqs (kernel/softirq.c:579) [ 5263.261976][ C0] __put_net (./include/linux/llist.h:238 ./include/linux/llist.h:265 net/core/net_namespace.c:732) [ 5263.261980][ C0] ? do_idle (kernel/sched/idle.c:325) [ 5263.261984][ C0] ? __pfx___put_net (net/core/net_namespace.c:729) [ 5263.261987][ C0] ? bpf_sk_storage_free (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/bpf_sk_storage.c:61) [ 5263.261992][ C0] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2368) [ 5263.261996][ C0] ? rcu_do_batch (kernel/rcu/tree.c:2576) [ 5263.261998][ C0] rcu_do_batch (kernel/rcu/tree.c:2576) [ 5263.262002][ C0] ? find_held_lock (kernel/locking/lockdep.c:5353) [ 5263.262005][ C0] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2500) [ 5263.262009][ C0] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) [ 5263.262012][ C0] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) [ 5263.262016][ C0] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) [ 5263.262020][ C0] rcu_core (kernel/rcu/tree.c:2834) [ 5263.262024][ C0] handle_softirqs (kernel/softirq.c:579) [ 5263.262029][ C0] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) [ 5263.262033][ C0] irq_exit_rcu (kernel/softirq.c:698) [ 5263.262036][ C0] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) [ 5263.262039][ C0] [ 5263.262040][ C0] [ 5263.262042][ C0] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) [ 5263.262046][ C0] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) [ 5263.262049][ C0] Code: 54 ce 00 e9 d3 58 02 00 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 66 90 0f 00 2d 33 07 1f 00 fb f4 cc cc cc cc 66 2e 0f 1f 84 00 00 00 00 00 66 90 90 90 90 90 90 All code ======== 0: 54 push %rsp 1: ce (bad) 2: 00 e9 add %ch,%cl 4: d3 58 02 rcrl %cl,0x2(%rax) 7: 00 0f add %cl,(%rdi) 9: 1f (bad) a: 00 90 90 90 90 90 add %dl,-0x6f6f6f70(%rax) 10: 90 nop 11: 90 nop 12: 90 nop 13: 90 nop 14: 90 nop 15: 90 nop 16: 90 nop 17: 90 nop 18: 90 nop 19: 90 nop 1a: 90 nop 1b: f3 0f 1e fa endbr64 1f: 66 90 xchg %ax,%ax 21: 0f 00 2d 33 07 1f 00 verw 0x1f0733(%rip) # 0x1f075b 28: fb sti 29: f4 hlt 2a:* c3 ret <-- trapping instruction 2b: cc int3 2c: cc int3 2d: cc int3 2e: cc int3 2f: 66 2e 0f 1f 84 00 00 cs nopw 0x0(%rax,%rax,1) 36: 00 00 00 39: 66 90 xchg %ax,%ax 3b: 90 nop 3c: 90 nop 3d: 90 nop 3e: 90 nop 3f: 90 nop Code starting with the faulting instruction =========================================== 0: c3 ret 1: cc int3 2: cc int3 3: cc int3 4: cc int3 5: 66 2e 0f 1f 84 00 00 cs nopw 0x0(%rax,%rax,1) c: 00 00 00 f: 66 90 xchg %ax,%ax 11: 90 nop 12: 90 nop 13: 90 nop 14: 90 nop 15: 90 nop [ 5263.262052][ C0] RSP: 0000:ffffffff9ec07df8 EFLAGS: 00000242 [ 5263.262055][ C0] RAX: 000000000781c907 RBX: 1ffffffff3d80fc3 RCX: ffffffff9d8a43e9 [ 5263.262057][ C0] RDX: 0000000000000000 RSI: ffffffff9e52ba5f RDI: ffffffff9dc5cf00 [ 5263.262059][ C0] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed100d9c6702 [ 5263.262060][ C0] R10: ffff88806ce33813 R11: ffffffff9ec11288 R12: 0000000000000000 [ 5263.262062][ C0] R13: ffffffff9ec33280 R14: dffffc0000000000 R15: 0000000000014770 [ 5263.262066][ C0] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) [ 5263.262071][ C0] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) [ 5263.262074][ C0] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) [ 5263.262078][ C0] cpuidle_idle_call (kernel/sched/idle.c:186) [ 5263.262081][ C0] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) [ 5263.262085][ C0] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:60) [ 5263.262091][ C0] do_idle (kernel/sched/idle.c:325) [ 5263.262095][ C0] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) [ 5263.262098][ C0] rest_init (./include/linux/rcupdate.h:842 init/main.c:715) [ 5263.262102][ C0] start_kernel (init/main.c:1050 (discriminator 1)) [ 5263.262107][ C0] x86_64_start_reservations (arch/x86/kernel/head64.c:295) [ 5263.262111][ C0] x86_64_start_kernel (arch/x86/kernel/head64.c:231 (discriminator 17)) Finger prints: mark_lock_irq:mark_lock:mark_usage:__lock_acquire:_raw_spin_lock