====================================== | [ 41.742082][ T874] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) | [ 41.742171][ T874] | [ 41.742206][ T874] | [ 41.742206][ T874] stack backtrace: [ 41.742301][ T874] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 41.742302][ T874] Call Trace: [ 41.742304][ T874] [ 41.742305][ T874] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 41.742309][ T874] print_irq_inversion_bug.part.0.cold (kernel/locking/lockdep.c:4125) [ 41.742312][ T874] mark_lock_irq (kernel/locking/lockdep.c:4079 kernel/locking/lockdep.c:4158 kernel/locking/lockdep.c:4294) [ 41.742315][ T874] mark_lock (kernel/locking/lockdep.c:4753) [ 41.742317][ T874] mark_usage (kernel/locking/lockdep.c:4666) [ 41.742318][ T874] __lock_acquire (kernel/locking/lockdep.c:5191) [ 41.742320][ T874] lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1)) [ 41.742322][ T874] ? __ipv6_dev_ac_dec (./include/linux/spinlock.h:342 net/ipv6/anycast.c:253 net/ipv6/anycast.c:419) [ 41.742323][ T874] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3)) [ 41.742326][ T874] ? do_raw_read_unlock (kernel/locking/spinlock_debug.c:180) [ 41.742327][ T874] ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22)) [ 41.742329][ T874] _raw_spin_lock (./include/linux/spinlock_api_smp.h:158 (discriminator 1) kernel/locking/spinlock.c:158 (discriminator 1)) [ 41.742331][ T874] ? __ipv6_dev_ac_dec (./include/linux/spinlock.h:342 net/ipv6/anycast.c:253 net/ipv6/anycast.c:419) [ 41.742332][ T874] __ipv6_dev_ac_dec (./include/linux/spinlock.h:342 net/ipv6/anycast.c:253 net/ipv6/anycast.c:419) [ 41.742334][ T874] addrconf_leave_anycast (net/ipv6/addrconf.c:2289) [ 41.742336][ T874] ? inet6_dump_ifinfo (net/ipv6/addrconf.c:6164) [ 41.742338][ T874] ? __ipv6_isatap_ifid (net/ipv6/addrconf.c:2360) [ 41.742340][ T874] ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599) [ 41.742341][ T874] __ipv6_ifa_notify (net/ipv6/addrconf.c:6325) [ 41.742343][ T874] ? cleanup_prefix_route (./include/net/ip6_fib.h:558 (discriminator 3)) [ 41.742345][ T874] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 41.742348][ T874] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535) [ 41.742349][ T874] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 41.742351][ T874] ? mark_held_locks (kernel/locking/lockdep.c:4325) [ 41.742353][ T874] ? addrconf_ifdown.isra.0 (net/ipv6/addrconf.c:4004) [ 41.742354][ T874] addrconf_ifdown.isra.0 (net/ipv6/addrconf.c:4004) [ 41.742357][ T874] ? addrconf_dad_run (net/ipv6/addrconf.c:4415 (discriminator 1)) [ 41.742359][ T874] ? neigh_flush_one (./include/linux/skbuff.h:2198) [ 41.742361][ T874] ? mark_held_locks (kernel/locking/lockdep.c:4325) [ 41.742363][ T874] addrconf_notify (net/ipv6/addrconf.c:3803) [ 41.742365][ T874] ? team_port_get_rtnl (drivers/net/team/team_core.c:42 (discriminator 3)) [ 41.742368][ T874] notifier_call_chain (kernel/notifier.c:85) [ 41.742370][ T874] __dev_notify_flags (net/core/dev.c:2287 net/core/dev.c:2301 net/core/dev.c:9792) [ 41.742371][ T874] ? netif_change_name (net/core/dev.c:1495) [ 41.742373][ T874] ? netif_set_allmulti (./include/net/netdev_lock.h:30 (discriminator 1)) [ 41.742374][ T874] ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2)) [ 41.742378][ T874] netif_change_flags (net/core/dev.c:9819) [ 41.742379][ T874] do_setlink.isra.0 (net/core/rtnetlink.c:3207 (discriminator 1)) [ 41.742382][ T874] ? rtnl_link_get_size (net/core/rtnetlink.c:716) [ 41.742384][ T874] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3)) [ 41.742386][ T874] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 41.742388][ T874] ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2)) [ 41.742389][ T874] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 41.742390][ T874] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 41.742393][ T874] ? __kernel_text_address (kernel/extable.c:79) [ 41.742395][ T874] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 41.742397][ T874] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1)) [ 41.742398][ T874] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4150) [ 41.742400][ T874] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3)) [ 41.742401][ T874] ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22)) [ 41.742402][ T874] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3)) [ 41.742404][ T874] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3)) [ 41.742405][ T874] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22)) [ 41.742407][ T874] ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820) [ 41.742408][ T874] ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1)) [ 41.742410][ T874] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4150) [ 41.742411][ T874] ? ww_mutex_lock (kernel/locking/mutex.c:933) [ 41.742413][ T874] ? __rtnl_newlink (net/core/rtnetlink.c:4001) [ 41.742416][ T874] rtnl_newlink (net/core/rtnetlink.c:4151) [ 41.742417][ T874] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1)) [ 41.742419][ T874] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 41.742420][ T874] ? __rtnl_newlink (net/core/rtnetlink.c:4028 (discriminator 1)) [ 41.742422][ T874] ? mark_usage (kernel/locking/lockdep.c:4674) [ 41.742423][ T874] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535) [ 41.742425][ T874] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1)) [ 41.742426][ T874] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 41.742428][ T874] ? __rtnl_newlink (net/core/rtnetlink.c:4028 (discriminator 1)) [ 41.742429][ T874] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535) [ 41.742431][ T874] ? __rtnl_newlink (net/core/rtnetlink.c:4028 (discriminator 1)) [ 41.742432][ T874] rtnetlink_rcv_msg (net/core/rtnetlink.c:7062) [ 41.742433][ T874] ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2)) [ 41.742435][ T874] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 41.742436][ T874] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 41.742438][ T874] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1)) [ 41.742439][ T874] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 41.742441][ T874] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 41.742443][ T874] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 41.742444][ T874] ? netlink_ack (./include/linux/skbuff.h:2720) [ 41.742447][ T874] ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2)) [ 41.742448][ T874] ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2)) [ 41.742450][ T874] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 41.742452][ T874] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 41.742454][ T874] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 41.742456][ T874] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 41.742458][ T874] ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7)) [ 41.742460][ T874] ? __might_fault (mm/memory.c:7340 (discriminator 5)) [ 41.742463][ T874] ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4)) [ 41.742465][ T874] ? copy_msghdr_from_user (net/socket.c:2635) [ 41.742466][ T874] ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5354) [ 41.742468][ T874] ? move_addr_to_kernel (net/socket.c:258) [ 41.742470][ T874] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 41.742471][ T874] ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2)) [ 41.742473][ T874] ___sys_sendmsg (net/socket.c:2752) [ 41.742475][ T874] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131) [ 41.742477][ T874] ? copy_msghdr_from_user (net/socket.c:2603) [ 41.742482][ T874] __sys_sendmsg (net/socket.c:2784) [ 41.742483][ T874] ? __sys_sendmsg_sock (net/socket.c:2765) [ 41.742484][ T874] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6)) [ 41.742486][ T874] ? 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) [ 41.742488][ T874] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3)) [ 41.742490][ T874] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) [ 41.742491][ T874] ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1)) [ 41.742494][ T874] ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3)) [ 41.742496][ T874] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 41.742497][ T874] RIP: 0033:0x7f8a85c5f08e [ 41.742500][ T874] 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 [ 41.742501][ T874] RSP: 002b:00007ffc02ac4d00 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 41.742504][ T874] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f8a85c5f08e [ 41.742506][ T874] RDX: 0000000000000000 RSI: 00007ffc02ac4db0 RDI: 0000000000000005 [ 41.742506][ T874] RBP: 00007ffc02ac4d10 R08: 0000000000000000 R09: 0000000000000000 [ 41.742507][ T874] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a193509 Finger prints: mark_lock_irq:mark_lock:mark_usage:__lock_acquire:_raw_spin_lock