====================================== | [ 834.595852][ T4476] #0: ffffffffb8deeb48 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink (net/core/rtnetlink.c:342 net/core/rtnetlink.c:4047) | [ 834.596123][ T4476] #1: ffff88801309ad80 (team->team_lock_key){+.+.}-{4:4}, at: team_add_slave (drivers/net/team/team_core.c:1988) | [ 834.596401][ T4476] | [ 834.596401][ T4476] stack backtrace: [ 834.596588][ T4476] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 834.596591][ T4476] Call Trace: [ 834.596594][ T4476] [ 834.596596][ T4476] dump_stack_lvl (lib/dump_stack.c:123) [ 834.596605][ T4476] print_circular_bug (kernel/locking/lockdep.c:2079) [ 834.596611][ T4476] check_noncircular (kernel/locking/lockdep.c:2208) [ 834.596615][ T4476] ? __pfx_check_noncircular (kernel/locking/lockdep.c:2184) [ 834.596619][ T4476] ? find_held_lock (kernel/locking/lockdep.c:5341) [ 834.596625][ T4476] ? alloc_chain_hlocks (kernel/locking/lockdep.c:3530) [ 834.596630][ T4476] check_prev_add (kernel/locking/lockdep.c:3164) [ 834.596634][ T4476] validate_chain (kernel/locking/lockdep.c:3283 kernel/locking/lockdep.c:3906) [ 834.596639][ T4476] ? stack_depot_save_flags (lib/stackdepot.c:672) [ 834.596646][ T4476] ? __pfx_validate_chain (kernel/locking/lockdep.c:3862) [ 834.596650][ T4476] ? hlock_class (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 kernel/locking/lockdep.c:230) [ 834.596652][ T4476] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) [ 834.596656][ T4476] __lock_acquire (kernel/locking/lockdep.c:5228) [ 834.596661][ T4476] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) [ 834.596664][ T4476] lock_acquire.part.0 (kernel/locking/lockdep.c:469 kernel/locking/lockdep.c:5853) [ 834.596667][ T4476] ? __dev_open (./include/linux/netdevice.h:2738 net/core/dev.h:144 net/core/dev.c:1650) [ 834.596670][ T4476] ? validate_chain (kernel/locking/lockdep.c:3799 kernel/locking/lockdep.c:3819 kernel/locking/lockdep.c:3874) [ 834.596673][ T4476] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) [ 834.596677][ T4476] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 21)) [ 834.596680][ T4476] ? lock_acquire (kernel/locking/lockdep.c:5824) [ 834.596682][ T4476] ? __dev_open (./include/linux/netdevice.h:2738 net/core/dev.h:144 net/core/dev.c:1650) [ 834.596686][ T4476] __mutex_lock (kernel/locking/mutex.c:587 kernel/locking/mutex.c:730) [ 834.596688][ T4476] ? __dev_open (./include/linux/netdevice.h:2738 net/core/dev.h:144 net/core/dev.c:1650) [ 834.596691][ T4476] ? __dev_open (./include/linux/netdevice.h:2738 net/core/dev.h:144 net/core/dev.c:1650) [ 834.596694][ T4476] ? __pfx___mutex_lock (kernel/locking/mutex.c:729) [ 834.596700][ T4476] ? packet_notifier (net/packet/af_packet.c:4281) [ 834.596707][ T4476] ? __dev_open (./include/linux/netdevice.h:2738 net/core/dev.h:144 net/core/dev.c:1650) [ 834.596709][ T4476] __dev_open (./include/linux/netdevice.h:2738 net/core/dev.h:144 net/core/dev.c:1650) [ 834.596711][ T4476] ? mark_held_locks (kernel/locking/lockdep.c:4323) [ 834.596714][ T4476] ? __pfx___dev_open (net/core/dev.c:1609) [ 834.596717][ T4476] ? trace_percpu_alloc_percpu (./include/trace/events/percpu.h:11 (discriminator 21)) [ 834.596724][ T4476] netif_open (net/core/dev.c:1666) [ 834.596727][ T4476] ? __pfx_netif_open (net/core/dev.c:1660) [ 834.596731][ T4476] dev_open (./include/linux/netdevice.h:2738 ./include/linux/netdevice.h:2755 net/core/dev_api.c:190) [ 834.596735][ T4476] team_port_add (drivers/net/team/team_core.c:1229) [ 834.596740][ T4476] ? __pfx_team_port_add (drivers/net/team/team_core.c:1145) [ 834.596744][ T4476] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 834.596750][ T4476] ? validate_chain (kernel/locking/lockdep.c:3799 kernel/locking/lockdep.c:3819 kernel/locking/lockdep.c:3874) [ 834.596755][ T4476] team_add_slave (drivers/net/team/team_core.c:1989) [ 834.596759][ T4476] do_set_master (net/core/rtnetlink.c:2939) [ 834.596763][ T4476] do_setlink.constprop.0 (net/core/rtnetlink.c:3144) [ 834.596767][ T4476] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3012) [ 834.596771][ T4476] ? lock_acquire.part.0 (kernel/locking/lockdep.c:469 kernel/locking/lockdep.c:5853) [ 834.596774][ T4476] ? rtnl_newlink (net/core/rtnetlink.c:342 net/core/rtnetlink.c:4047) [ 834.596777][ T4476] ? rtnl_newlink (./include/linux/slab.h:901 net/core/rtnetlink.c:3948) [ 834.596779][ T4476] ? rtnetlink_rcv_msg (net/core/rtnetlink.c:6938) [ 834.596783][ T4476] ? __mutex_trylock_common (./arch/x86/include/asm/atomic64_64.h:101 ./include/linux/atomic/atomic-arch-fallback.h:4296 ./include/linux/atomic/atomic-long.h:1482 ./include/linux/atomic/atomic-instrumented.h:4458 kernel/locking/mutex.c:104) [ 834.596787][ T4476] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:79) [ 834.596790][ T4476] ? lock_acquire (kernel/locking/lockdep.c:5824) [ 834.596794][ T4476] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) [ 834.596798][ T4476] ? __mutex_lock (./arch/x86/include/asm/preempt.h:94 kernel/locking/mutex.c:595 kernel/locking/mutex.c:730) [ 834.596801][ T4476] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) [ 834.596804][ T4476] ? rtnl_newlink (net/core/rtnetlink.c:342 net/core/rtnetlink.c:4047) [ 834.596808][ T4476] ? __pfx___mutex_lock (kernel/locking/mutex.c:729) [ 834.596810][ T4476] ? __pfx_validate_nla (lib/nlattr.c:396) [ 834.596816][ T4476] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) [ 834.596823][ T4476] ? __rtnl_newlink (net/core/rtnetlink.c:3898) [ 834.596828][ T4476] rtnl_newlink (net/core/rtnetlink.c:350 net/core/rtnetlink.c:4049) [ 834.596833][ T4476] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3939) [ 834.596835][ T4476] ? find_held_lock (kernel/locking/lockdep.c:5341) [ 834.596840][ T4476] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) [ 834.596843][ T4476] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) [ 834.596848][ T4476] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/core/rtnetlink.c:6936) [ 834.596851][ T4476] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3939) [ 834.596854][ T4476] rtnetlink_rcv_msg (net/core/rtnetlink.c:6938) [ 834.596857][ T4476] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6841) [ 834.596861][ T4476] ? hlock_class (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 kernel/locking/lockdep.c:230) [ 834.596863][ T4476] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) [ 834.596867][ T4476] ? __lock_acquire (kernel/locking/lockdep.c:5228) [ 834.596871][ T4476] netlink_rcv_skb (net/netlink/af_netlink.c:2544) [ 834.596874][ T4476] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6841) [ 834.596878][ T4476] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2521) [ 834.596885][ T4476] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) [ 834.596889][ T4476] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) [ 834.596893][ T4476] netlink_unicast (net/netlink/af_netlink.c:1323 net/netlink/af_netlink.c:1349) [ 834.596897][ T4476] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1334) [ 834.596900][ T4476] ? find_held_lock (kernel/locking/lockdep.c:5341) [ 834.596905][ T4476] netlink_sendmsg (net/netlink/af_netlink.c:1893) [ 834.596909][ T4476] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1812) [ 834.596915][ T4476] ____sys_sendmsg (net/socket.c:718 net/socket.c:733 net/socket.c:2573) [ 834.596919][ T4476] ? __pfx_____sys_sendmsg (net/socket.c:2519) [ 834.596922][ T4476] ? __pfx_copy_msghdr_from_user (net/socket.c:2499) [ 834.596929][ T4476] ___sys_sendmsg (net/socket.c:2629) [ 834.596933][ T4476] ? __pfx____sys_sendmsg (net/socket.c:2616) [ 834.596937][ T4476] ? kasan_save_stack (mm/kasan/common.c:49) [ 834.596942][ T4476] ? kasan_save_stack (mm/kasan/common.c:48) [ 834.596945][ T4476] ? kasan_record_aux_stack (mm/kasan/generic.c:548) [ 834.596949][ T4476] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:87 ./arch/x86/include/asm/irqflags.h:123 kernel/rcu/tree.c:3067) [ 834.596953][ T4476] ? __x64_sys_close (fs/open.c:1583 fs/open.c:1565 fs/open.c:1565) [ 834.596956][ T4476] ? do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 834.596958][ T4476] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 834.596962][ T4476] ? __lock_acquire (kernel/locking/lockdep.c:5228) [ 834.596965][ T4476] ? lock_downgrade (./arch/x86/include/asm/current.h:49 kernel/locking/lockdep.c:122 kernel/locking/lockdep.c:5747) [ 834.596968][ T4476] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) [ 834.596972][ T4476] ? find_held_lock (kernel/locking/lockdep.c:5341) [ 834.596976][ T4476] ? __lock_release (kernel/locking/lockdep.c:5527) [ 834.596979][ T4476] ? __virt_addr_valid (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:962 ./include/linux/mmzone.h:2077 arch/x86/mm/physaddr.c:65) [ 834.596985][ T4476] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) [ 834.596988][ T4476] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) [ 834.596992][ T4476] __sys_sendmsg (net/socket.c:2659) [ 834.596996][ T4476] ? __pfx___sys_sendmsg (net/socket.c:2644) [ 834.597004][ T4476] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 834.597007][ T4476] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 834.597010][ T4476] RIP: 0033:0x7f91f22669a7 [ 834.597015][ T4476] Code: 0a 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10 All code ======== 0: 0a 00 or (%rax),%al 2: f7 d8 neg %eax 4: 64 89 02 mov %eax,%fs:(%rdx) 7: 48 c7 c0 ff ff ff ff mov $0xffffffffffffffff,%rax e: eb b9 jmp 0xffffffffffffffc9 10: 0f 1f 00 nopl (%rax) 13: f3 0f 1e fa endbr64 17: 64 8b 04 25 18 00 00 mov %fs:0x18,%eax 1e: 00 1f: 85 c0 test %eax,%eax 21: 75 10 jne 0x33 23: b8 2e 00 00 00 mov $0x2e,%eax 28: 0f 05 syscall 2a:* 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax <-- trapping instruction 30: 77 51 ja 0x83 32: c3 ret 33: 48 83 ec 28 sub $0x28,%rsp 37: 89 54 24 1c mov %edx,0x1c(%rsp) 3b: 48 89 74 24 10 mov %rsi,0x10(%rsp) Code starting with the faulting instruction =========================================== 0: 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax 6: 77 51 ja 0x59 8: c3 ret 9: 48 83 ec 28 sub $0x28,%rsp d: 89 54 24 1c mov %edx,0x1c(%rsp) 11: 48 89 74 24 10 mov %rsi,0x10(%rsp) [ 834.597018][ T4476] RSP: 002b:00007ffe0d96cbf8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 834.597022][ T4476] RAX: ffffffffffffffda RBX: 00007ffe0d96d320 RCX: 00007f91f22669a7 [ 834.597024][ T4476] RDX: 0000000000000000 RSI: 00007ffe0d96cc60 RDI: 0000000000000005 [ 834.597026][ T4476] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000 [ 834.597027][ T4476] R10: 000000000f3e3910 R11: 0000000000000246 R12: 0000000000000004 Finger prints: print_circular_bug:check_noncircular:check_prev_add:validate_chain:__lock_acquire