====================================== | [ 20.916905][ T408] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) | [ 20.917076][ T408] | [ 20.917122][ T408] | [ 20.917122][ T408] stack backtrace: [ 20.917239][ T408] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 20.917242][ T408] Call Trace: [ 20.917244][ T408] [ 20.917246][ T408] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 20.917250][ T408] print_irq_inversion_bug.part.0.cold (kernel/locking/lockdep.c:4125) [ 20.917253][ T408] mark_lock_irq (kernel/locking/lockdep.c:4079 kernel/locking/lockdep.c:4158 kernel/locking/lockdep.c:4294) [ 20.917256][ T408] mark_lock (kernel/locking/lockdep.c:4753) [ 20.917258][ T408] mark_usage (kernel/locking/lockdep.c:4666) [ 20.917259][ T408] __lock_acquire (kernel/locking/lockdep.c:5191) [ 20.917261][ T408] lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1)) [ 20.917263][ T408] ? __ipv6_dev_ac_dec (./include/linux/spinlock.h:342 net/ipv6/anycast.c:253 net/ipv6/anycast.c:419) [ 20.917264][ T408] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3)) [ 20.917267][ T408] ? do_raw_read_unlock (kernel/locking/spinlock_debug.c:180) [ 20.917269][ T408] ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22)) [ 20.917271][ T408] _raw_spin_lock (./include/linux/spinlock_api_smp.h:158 (discriminator 1) kernel/locking/spinlock.c:158 (discriminator 1)) [ 20.917272][ T408] ? __ipv6_dev_ac_dec (./include/linux/spinlock.h:342 net/ipv6/anycast.c:253 net/ipv6/anycast.c:419) [ 20.917274][ T408] __ipv6_dev_ac_dec (./include/linux/spinlock.h:342 net/ipv6/anycast.c:253 net/ipv6/anycast.c:419) [ 20.917276][ T408] addrconf_leave_anycast (net/ipv6/addrconf.c:2289) [ 20.917278][ T408] ? inet6_dump_ifinfo (net/ipv6/addrconf.c:6164) [ 20.917280][ T408] ? __ipv6_isatap_ifid (net/ipv6/addrconf.c:2360) [ 20.917281][ T408] ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599) [ 20.917284][ T408] __ipv6_ifa_notify (net/ipv6/addrconf.c:6325) [ 20.917286][ T408] ? cleanup_prefix_route (./include/net/ip6_fib.h:558 (discriminator 3)) [ 20.917287][ T408] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 20.917290][ T408] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535) [ 20.917291][ T408] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 20.917293][ T408] ? mark_held_locks (kernel/locking/lockdep.c:4325) [ 20.917295][ T408] ? addrconf_ifdown.isra.0 (net/ipv6/addrconf.c:4004) [ 20.917296][ T408] addrconf_ifdown.isra.0 (net/ipv6/addrconf.c:4004) [ 20.917298][ T408] ? __team_port_change_send (drivers/net/team/team_core.c:3045 drivers/net/team/team_core.c:3104) [ 20.917302][ T408] ? addrconf_dad_run (net/ipv6/addrconf.c:4415 (discriminator 1)) [ 20.917304][ T408] ? neigh_flush_one (./include/linux/skbuff.h:2198) [ 20.917306][ T408] ? mark_held_locks (kernel/locking/lockdep.c:4325) [ 20.917308][ T408] addrconf_notify (net/ipv6/addrconf.c:3803) [ 20.917310][ T408] ? team_port_get_rtnl (drivers/net/team/team_core.c:42 (discriminator 3)) [ 20.917312][ T408] notifier_call_chain (kernel/notifier.c:85) [ 20.917314][ T408] __dev_notify_flags (net/core/dev.c:2287 net/core/dev.c:2301 net/core/dev.c:9792) [ 20.917315][ T408] ? netif_change_name (net/core/dev.c:1495) [ 20.917317][ T408] ? netif_set_allmulti (./include/net/netdev_lock.h:30 (discriminator 1)) [ 20.917318][ T408] ? 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)) [ 20.917322][ T408] netif_change_flags (net/core/dev.c:9819) [ 20.917324][ T408] do_setlink.isra.0 (net/core/rtnetlink.c:3207 (discriminator 1)) [ 20.917327][ T408] ? rtnl_link_get_size (net/core/rtnetlink.c:716) [ 20.917328][ T408] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3)) [ 20.917331][ T408] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 20.917332][ T408] ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2)) [ 20.917334][ T408] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 20.917335][ T408] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 20.917338][ T408] ? __kernel_text_address (kernel/extable.c:79) [ 20.917340][ T408] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 20.917342][ T408] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1)) [ 20.917343][ T408] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4150) [ 20.917345][ T408] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3)) [ 20.917347][ T408] ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22)) [ 20.917348][ T408] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3)) [ 20.917349][ T408] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3)) [ 20.917351][ T408] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22)) [ 20.917353][ T408] ? __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) [ 20.917355][ T408] ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1)) [ 20.917356][ T408] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4150) [ 20.917358][ T408] ? ww_mutex_lock (kernel/locking/mutex.c:933) [ 20.917360][ T408] ? __rtnl_newlink (net/core/rtnetlink.c:4001) [ 20.917362][ T408] rtnl_newlink (net/core/rtnetlink.c:4151) [ 20.917364][ T408] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1)) [ 20.917365][ T408] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 20.917367][ T408] ? __rtnl_newlink (net/core/rtnetlink.c:4028 (discriminator 1)) [ 20.917369][ T408] ? mark_usage (kernel/locking/lockdep.c:4674) [ 20.917370][ T408] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535) [ 20.917372][ T408] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1)) [ 20.917373][ T408] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 20.917375][ T408] ? __rtnl_newlink (net/core/rtnetlink.c:4028 (discriminator 1)) [ 20.917376][ T408] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535) [ 20.917378][ T408] ? __rtnl_newlink (net/core/rtnetlink.c:4028 (discriminator 1)) [ 20.917379][ T408] rtnetlink_rcv_msg (net/core/rtnetlink.c:7062) [ 20.917381][ T408] ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2)) [ 20.917383][ T408] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 20.917385][ T408] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 20.917388][ T408] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1)) [ 20.917390][ T408] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 20.917392][ T408] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 20.917394][ T408] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 20.917396][ T408] ? netlink_ack (./include/linux/skbuff.h:2720) [ 20.917398][ T408] ? 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)) [ 20.917400][ T408] ? 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)) [ 20.917402][ T408] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 20.917404][ T408] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 20.917406][ T408] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 20.917408][ T408] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 20.917410][ T408] ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7)) [ 20.917412][ T408] ? __might_fault (mm/memory.c:7340 (discriminator 5)) [ 20.917415][ T408] ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4)) [ 20.917417][ T408] ? copy_msghdr_from_user (net/socket.c:2635) [ 20.917419][ T408] ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5354) [ 20.917420][ T408] ? move_addr_to_kernel (net/socket.c:258) [ 20.917423][ T408] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 20.917424][ T408] ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2)) [ 20.917426][ T408] ___sys_sendmsg (net/socket.c:2752) [ 20.917427][ T408] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131) [ 20.917429][ T408] ? copy_msghdr_from_user (net/socket.c:2603) [ 20.917435][ T408] __sys_sendmsg (net/socket.c:2784) [ 20.917436][ T408] ? __sys_sendmsg_sock (net/socket.c:2765) [ 20.917437][ T408] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6)) [ 20.917439][ T408] ? 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) [ 20.917441][ T408] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3)) [ 20.917443][ T408] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) [ 20.917444][ T408] ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1)) [ 20.917452][ T408] ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3)) [ 20.917455][ T408] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 20.917458][ T408] RIP: 0033:0x7fd8c7d7808e [ 20.917460][ T408] 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 [ 20.917462][ T408] RSP: 002b:00007ffdc1930660 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 20.917465][ T408] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fd8c7d7808e [ 20.917466][ T408] RDX: 0000000000000000 RSI: 00007ffdc1930710 RDI: 0000000000000005 [ 20.917467][ T408] RBP: 00007ffdc1930670 R08: 0000000000000000 R09: 0000000000000000 [ 20.917468][ T408] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a1959c1 Finger prints: mark_lock_irq:mark_lock:mark_usage:__lock_acquire:_raw_spin_lock