====================================== | [ 367.013137][T17778] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) | [ 367.013237][T17778] | [ 367.013284][T17778] | [ 367.013284][T17778] stack backtrace: [ 367.013388][T17778] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 367.013390][T17778] Call Trace: [ 367.013391][T17778] [ 367.013396][T17778] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 367.013401][T17778] print_irq_inversion_bug.part.0.cold (kernel/locking/lockdep.c:4125) [ 367.013405][T17778] mark_lock_irq (kernel/locking/lockdep.c:4079 kernel/locking/lockdep.c:4158 kernel/locking/lockdep.c:4294) [ 367.013407][T17778] mark_lock (kernel/locking/lockdep.c:4753) [ 367.013409][T17778] mark_usage (kernel/locking/lockdep.c:4666) [ 367.013411][T17778] __lock_acquire (kernel/locking/lockdep.c:5191) [ 367.013413][T17778] lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1)) [ 367.013414][T17778] ? __ipv6_dev_ac_dec (./include/linux/spinlock.h:342 net/ipv6/anycast.c:253 net/ipv6/anycast.c:419) [ 367.013416][T17778] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3)) [ 367.013418][T17778] ? do_raw_read_unlock (kernel/locking/spinlock_debug.c:180) [ 367.013420][T17778] ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22)) [ 367.013422][T17778] _raw_spin_lock (./include/linux/spinlock_api_smp.h:158 (discriminator 1) kernel/locking/spinlock.c:158 (discriminator 1)) [ 367.013423][T17778] ? __ipv6_dev_ac_dec (./include/linux/spinlock.h:342 net/ipv6/anycast.c:253 net/ipv6/anycast.c:419) [ 367.013425][T17778] __ipv6_dev_ac_dec (./include/linux/spinlock.h:342 net/ipv6/anycast.c:253 net/ipv6/anycast.c:419) [ 367.013427][T17778] addrconf_leave_anycast (net/ipv6/addrconf.c:2289) [ 367.013428][T17778] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 367.013431][T17778] ? __ipv6_isatap_ifid (net/ipv6/addrconf.c:2360) [ 367.013433][T17778] ? mark_held_locks (kernel/locking/lockdep.c:4325) [ 367.013435][T17778] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472) [ 367.013437][T17778] dev_forward_change (net/ipv6/addrconf.c:844) [ 367.013439][T17778] ? addrconf_fixup_forwarding (./include/linux/rtnetlink.h:140 net/ipv6/addrconf.c:878) [ 367.013440][T17778] ? addrconf_sysctl_proxy_ndp (net/ipv6/addrconf.c:6504) [ 367.013443][T17778] addrconf_fixup_forwarding (net/ipv6/addrconf.c:868 net/ipv6/addrconf.c:904) [ 367.013445][T17778] addrconf_sysctl_forward (net/ipv6/addrconf.c:6373) [ 367.013447][T17778] ? addrconf_fixup_forwarding (net/ipv6/addrconf.c:906) [ 367.013450][T17778] ? addrconf_fixup_forwarding (net/ipv6/addrconf.c:906) [ 367.013451][T17778] ? __kvmalloc_node_noprof (mm/slub.c:5297 mm/slub.c:6833) [ 367.013455][T17778] ? proc_sys_call_handler (fs/proc/proc_sysctl.c:583 (discriminator 7)) [ 367.013457][T17778] proc_sys_call_handler (fs/proc/proc_sysctl.c:600) [ 367.013459][T17778] ? proc_sys_lookup (fs/proc/proc_sysctl.c:543 (discriminator 3)) [ 367.013461][T17778] ? do_fault_around (./include/linux/rcupdate.h:871 mm/memory.c:5870) [ 367.013464][T17778] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 367.013465][T17778] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3)) [ 367.013467][T17778] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 367.013469][T17778] ? proc_sys_call_handler (fs/proc/proc_sysctl.c:591) [ 367.013471][T17778] new_sync_write (fs/read_write.c:595) [ 367.013473][T17778] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 367.013474][T17778] ? new_sync_read (./include/linux/ioprio.h:41) [ 367.013476][T17778] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1)) [ 367.013477][T17778] ? ksys_write (fs/read_write.c:740) [ 367.013479][T17778] vfs_write (fs/read_write.c:688) [ 367.013481][T17778] ksys_write (fs/read_write.c:740) [ 367.013482][T17778] ? __ia32_sys_read (fs/read_write.c:724) [ 367.013484][T17778] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3)) [ 367.013485][T17778] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3)) [ 367.013487][T17778] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) [ 367.013488][T17778] ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1)) [ 367.013491][T17778] ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3)) [ 367.013493][T17778] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 367.013494][T17778] RIP: 0033:0x7fdcb222308e [ 367.013497][T17778] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa All code ======== 0: 4d 89 d8 mov %r11,%r8 3: e8 94 bd 00 00 call 0xbd9c 8: 4c 8b 5d f8 mov -0x8(%rbp),%r11 c: 41 8b 93 08 03 00 00 mov 0x308(%r11),%edx 13: 59 pop %rcx 14: 5e pop %rsi 15: 48 83 f8 fc cmp $0xfffffffffffffffc,%rax 19: 74 11 je 0x2c 1b: c9 leave 1c: c3 ret 1d: 0f 1f 80 00 00 00 00 nopl 0x0(%rax) 24: 48 8b 45 10 mov 0x10(%rbp),%rax 28: 0f 05 syscall 2a:* c9 leave <-- trapping instruction 2b: c3 ret 2c: 83 e2 39 and $0x39,%edx 2f: 83 fa 08 cmp $0x8,%edx 32: 75 e7 jne 0x1b 34: e8 03 ff ff ff call 0xffffffffffffff3c 39: 0f 1f 00 nopl (%rax) 3c: f3 0f 1e fa endbr64 Code starting with the faulting instruction =========================================== 0: c9 leave 1: c3 ret 2: 83 e2 39 and $0x39,%edx 5: 83 fa 08 cmp $0x8,%edx 8: 75 e7 jne 0xfffffffffffffff1 a: e8 03 ff ff ff call 0xffffffffffffff12 f: 0f 1f 00 nopl (%rax) 12: f3 0f 1e fa endbr64 [ 367.013499][T17778] RSP: 002b:00007ffcecab3a60 EFLAGS: 00000202 ORIG_RAX: 0000000000000001 [ 367.013502][T17778] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fdcb222308e [ 367.013503][T17778] RDX: 0000000000000002 RSI: 0000556a83f714b0 RDI: 0000000000000005 [ 367.013504][T17778] RBP: 00007ffcecab3a70 R08: 0000000000000000 R09: 0000000000000000 [ 367.013505][T17778] R10: 0000000000000000 R11: 0000000000000202 R12: 0000556a83f735e0 Finger prints: mark_lock_irq:mark_lock:mark_usage:__lock_acquire:_raw_spin_lock