====================================== | [ 38.177101][ C0] common_startup_64 (arch/x86/kernel/head_64.S:421) | [ 38.177250][ C0] | [ 38.177324][ C0] | [ 38.177324][ C0] stack backtrace: [ 38.177817][ C0] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 38.178150][ C0] Call Trace: [ 38.178314][ C0] [ 38.178433][ C0] dump_stack_lvl (lib/dump_stack.c:117) [ 38.178821][ C0] print_irq_inversion_bug.part.0 (kernel/locking/lockdep.c:4024) [ 38.179072][ C0] ? kernel_text_address (kernel/extable.c:99) [ 38.179280][ C0] ? __pfx_print_irq_inversion_bug.part.0 (kernel/locking/lockdep.c:4024) [ 38.179546][ C0] ? __pfx_usage_skip (kernel/locking/lockdep.c:2264) [ 38.179927][ C0] ? __pfx_usage_match (kernel/locking/lockdep.c:2256) [ 38.180136][ C0] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:24) [ 38.180371][ C0] mark_lock_irq (kernel/locking/lockdep.c:4244) [ 38.180604][ C0] ? common_startup_64 (arch/x86/kernel/head_64.S:421) [ 38.180992][ C0] ? __pfx_mark_lock_irq (kernel/locking/lockdep.c:4207) [ 38.181229][ C0] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) [ 38.181477][ C0] ? save_trace (kernel/locking/lockdep.c:586) [ 38.181716][ C0] mark_lock (kernel/locking/lockdep.c:4678) [ 38.181904][ C0] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) [ 38.182301][ C0] mark_usage (kernel/locking/lockdep.c:4567) [ 38.182482][ C0] __lock_acquire (kernel/locking/lockdep.c:5091) [ 38.182721][ C0] ? __pfx_validate_chain (kernel/locking/lockdep.c:3825) [ 38.182966][ C0] ? __pfx_addrconf_rs_timer (net/ipv6/addrconf.c:4016) [ 38.183200][ C0] lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) [ 38.183439][ C0] ? addrconf_rs_timer (net/ipv6/addrconf.c:4023) [ 38.183674][ C0] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) [ 38.183921][ C0] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 52)) [ 38.184298][ C0] ? addrconf_rs_timer (net/ipv6/addrconf.c:4023) [ 38.184536][ C0] ? lock_acquire (kernel/locking/lockdep.c:5727) [ 38.184774][ C0] ? addrconf_rs_timer (net/ipv6/addrconf.c:4023) [ 38.185009][ C0] _raw_write_lock (./include/linux/rwlock_api_smp.h:210 kernel/locking/spinlock.c:300) [ 38.185249][ C0] ? addrconf_rs_timer (net/ipv6/addrconf.c:4023) [ 38.185824][ C0] addrconf_rs_timer (net/ipv6/addrconf.c:4023) [ 38.186045][ C0] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) [ 38.186286][ C0] ? __pfx_addrconf_rs_timer (net/ipv6/addrconf.c:4016) [ 38.186519][ C0] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1783) [ 38.186945][ C0] ? lock_acquire (kernel/locking/lockdep.c:5727) [ 38.187185][ C0] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1783) [ 38.187415][ C0] ? __pfx_addrconf_rs_timer (net/ipv6/addrconf.c:4016) [ 38.187641][ C0] call_timer_fn (kernel/time/timer.c:1793) [ 38.188022][ C0] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1783) [ 38.188257][ C0] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1783) [ 38.188485][ C0] ? __pfx_call_timer_fn (kernel/time/timer.c:1770) [ 38.188731][ C0] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 38.188912][ C0] __run_timers (kernel/time/timer.c:1845 kernel/time/timer.c:2418) [ 38.189307][ C0] ? __pfx_addrconf_rs_timer (net/ipv6/addrconf.c:4016) [ 38.189543][ C0] ? __pfx___run_timers (kernel/time/timer.c:2389) [ 38.189777][ C0] ? do_raw_spin_lock (./arch/x86/include/asm/atomic.h:115 ./include/linux/atomic/atomic-arch-fallback.h:2170 ./include/linux/atomic/atomic-instrumented.h:1302 ./include/asm-generic/qspinlock.h:111 kernel/locking/spinlock_debug.c:116) [ 38.190012][ C0] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) [ 38.190412][ C0] ? lock_acquire (kernel/locking/lockdep.c:5727) [ 38.190636][ C0] ? run_timer_softirq (kernel/time/timer.c:2429 kernel/time/timer.c:2422 kernel/time/timer.c:2438 kernel/time/timer.c:2448) [ 38.190881][ C0] run_timer_softirq (kernel/time/timer.c:2430 kernel/time/timer.c:2422 kernel/time/timer.c:2438 kernel/time/timer.c:2448) [ 38.191113][ C0] __do_softirq (kernel/softirq.c:554) [ 38.191509][ C0] irq_exit_rcu (kernel/softirq.c:428 kernel/softirq.c:633 kernel/softirq.c:645) [ 38.191688][ C0] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1043 arch/x86/kernel/apic/apic.c:1043) [ 38.191930][ C0] [ 38.192056][ C0] [ 38.192181][ C0] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) [ 38.192635][ C0] RIP: 0010:default_idle (./arch/x86/include/asm/irqflags.h:37 ./arch/x86/include/asm/irqflags.h:72 arch/x86/kernel/process.c:743) [ 38.192918][ C0] Code: 4c 01 c7 4c 29 c2 e9 72 ff ff ff 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 a3 30 35 00 fb f4 c3 cc cc cc cc 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 All code ======== 0: 4c 01 c7 add %r8,%rdi 3: 4c 29 c2 sub %r8,%rdx 6: e9 72 ff ff ff jmp 0xffffffffffffff7d b: 90 nop c: 90 nop d: 90 nop e: 90 nop f: 90 nop 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 a3 30 35 00 verw 0x3530a3(%rip) # 0x3530cb 28: fb sti 29: f4 hlt 2a:* fa cli <-- trapping instruction 2b: c3 ret 2c: cc int3 2d: cc int3 2e: cc int3 2f: cc int3 30: 66 66 2e 0f 1f 84 00 data16 cs nopw 0x0(%rax,%rax,1) 37: 00 00 00 00 3b: 90 nop 3c: 90 nop 3d: 90 nop 3e: 90 nop 3f: 90 nop Code starting with the faulting instruction =========================================== 0: fa cli 1: c3 ret 2: cc int3 3: cc int3 4: cc int3 5: cc int3 6: 66 66 2e 0f 1f 84 00 data16 cs nopw 0x0(%rax,%rax,1) d: 00 00 00 00 11: 90 nop 12: 90 nop 13: 90 nop 14: 90 nop 15: 90 nop [ 38.193956][ C0] RSP: 0018:ffffffff93407e00 EFLAGS: 00000242 [ 38.194255][ C0] RAX: 00000000000aa4d5 RBX: 1ffffffff2680fc2 RCX: ffffffff9250e9d5 [ 38.194610][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff8feaa4a4 [ 38.195131][ C0] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1006c0709c [ 38.195492][ C0] R10: ffff8880360384e3 R11: ffff88803602d9b0 R12: 0000000000000000 [ 38.195852][ C0] R13: ffffffff9341d000 R14: dffffc0000000000 R15: 0000000000014770 [ 38.196378][ C0] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:147) [ 38.196617][ C0] ? cpuidle_idle_call (kernel/sched/idle.c:192) [ 38.196846][ C0] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) [ 38.197074][ C0] cpuidle_idle_call (kernel/sched/idle.c:192) [ 38.197466][ C0] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) [ 38.197695][ C0] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:59) [ 38.197946][ C0] do_idle (kernel/sched/idle.c:332) [ 38.198117][ C0] cpu_startup_entry (kernel/sched/idle.c:429 (discriminator 1)) [ 38.198375][ C0] rest_init (./include/linux/rcupdate.h:782 init/main.c:703) [ 38.198705][ C0] start_kernel (init/main.c:1024 (discriminator 1)) [ 38.198935][ C0] x86_64_start_reservations (arch/x86/kernel/head64.c:495) [ 38.199176][ C0] x86_64_start_kernel (arch/x86/kernel/head64.c:437 (discriminator 17)) Finger prints: common_startup_64:dump_stack_lvl:mark_lock_irq:mark_lock