====================================== | [ 97.728990][ T1080] #0: ffffffffa7deeb48 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink (net/core/rtnetlink.c:342 net/core/rtnetlink.c:4047) | [ 97.729287][ T1080] #1: ffff88800a6fad80 (team->team_lock_key){+.+.}-{4:4}, at: team_add_slave (drivers/net/team/team_core.c:1988) | [ 97.729587][ T1080] | [ 97.729587][ T1080] stack backtrace: [ 97.729809][ T1080] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 97.729811][ T1080] Call Trace: [ 97.729813][ T1080] [ 97.729814][ T1080] dump_stack_lvl (lib/dump_stack.c:123) [ 97.729821][ T1080] print_circular_bug (kernel/locking/lockdep.c:2079) [ 97.729826][ T1080] check_noncircular (kernel/locking/lockdep.c:2208) [ 97.729829][ T1080] ? __pfx_check_noncircular (kernel/locking/lockdep.c:2184) [ 97.729833][ T1080] ? find_held_lock (kernel/locking/lockdep.c:5341) [ 97.729839][ T1080] ? alloc_chain_hlocks (kernel/locking/lockdep.c:3530) [ 97.729843][ T1080] check_prev_add (kernel/locking/lockdep.c:3164) [ 97.729848][ T1080] validate_chain (kernel/locking/lockdep.c:3283 kernel/locking/lockdep.c:3906) [ 97.729852][ T1080] ? stack_depot_save_flags (lib/stackdepot.c:672) [ 97.729858][ T1080] ? __pfx_validate_chain (kernel/locking/lockdep.c:3862) [ 97.729861][ T1080] ? 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) [ 97.729863][ T1080] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) [ 97.729867][ T1080] __lock_acquire (kernel/locking/lockdep.c:5228) [ 97.729871][ T1080] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) [ 97.729875][ T1080] lock_acquire.part.0 (kernel/locking/lockdep.c:469 kernel/locking/lockdep.c:5853) [ 97.729878][ T1080] ? __dev_open (./include/linux/netdevice.h:2738 net/core/dev.h:144 net/core/dev.c:1650) [ 97.729881][ T1080] ? validate_chain (kernel/locking/lockdep.c:3799 kernel/locking/lockdep.c:3819 kernel/locking/lockdep.c:3874) [ 97.729884][ T1080] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) [ 97.729887][ T1080] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 21)) [ 97.729890][ T1080] ? lock_acquire (kernel/locking/lockdep.c:5824) [ 97.729893][ T1080] ? __dev_open (./include/linux/netdevice.h:2738 net/core/dev.h:144 net/core/dev.c:1650) [ 97.729896][ T1080] __mutex_lock (kernel/locking/mutex.c:587 kernel/locking/mutex.c:730) [ 97.729898][ T1080] ? __dev_open (./include/linux/netdevice.h:2738 net/core/dev.h:144 net/core/dev.c:1650) [ 97.729901][ T1080] ? __dev_open (./include/linux/netdevice.h:2738 net/core/dev.h:144 net/core/dev.c:1650) [ 97.729904][ T1080] ? __pfx___mutex_lock (kernel/locking/mutex.c:729) [ 97.729909][ T1080] ? packet_notifier (net/packet/af_packet.c:4281) [ 97.729916][ T1080] ? __dev_open (./include/linux/netdevice.h:2738 net/core/dev.h:144 net/core/dev.c:1650) [ 97.729918][ T1080] __dev_open (./include/linux/netdevice.h:2738 net/core/dev.h:144 net/core/dev.c:1650) [ 97.729920][ T1080] ? mark_held_locks (kernel/locking/lockdep.c:4323) [ 97.729923][ T1080] ? __pfx___dev_open (net/core/dev.c:1609) [ 97.729926][ T1080] ? trace_percpu_alloc_percpu (./include/trace/events/percpu.h:11 (discriminator 21)) [ 97.729932][ T1080] netif_open (net/core/dev.c:1666) [ 97.729934][ T1080] ? __pfx_netif_open (net/core/dev.c:1660) [ 97.729938][ T1080] dev_open (./include/linux/netdevice.h:2738 ./include/linux/netdevice.h:2755 net/core/dev_api.c:190) [ 97.729942][ T1080] team_port_add (drivers/net/team/team_core.c:1229) [ 97.729947][ T1080] ? __pfx_team_port_add (drivers/net/team/team_core.c:1145) [ 97.729950][ T1080] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 97.729955][ T1080] ? validate_chain (kernel/locking/lockdep.c:3799 kernel/locking/lockdep.c:3819 kernel/locking/lockdep.c:3874) [ 97.729959][ T1080] team_add_slave (drivers/net/team/team_core.c:1989) [ 97.729964][ T1080] do_set_master (net/core/rtnetlink.c:2939) [ 97.729968][ T1080] do_setlink.constprop.0 (net/core/rtnetlink.c:3144) [ 97.729972][ T1080] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3012) [ 97.729976][ T1080] ? lock_acquire.part.0 (kernel/locking/lockdep.c:469 kernel/locking/lockdep.c:5853) [ 97.729979][ T1080] ? rtnl_newlink (net/core/rtnetlink.c:342 net/core/rtnetlink.c:4047) [ 97.729982][ T1080] ? rtnl_newlink (./include/linux/slab.h:901 net/core/rtnetlink.c:3948) [ 97.729985][ T1080] ? rtnetlink_rcv_msg (net/core/rtnetlink.c:6938) [ 97.729988][ T1080] ? __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) [ 97.729992][ T1080] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:79) [ 97.729995][ T1080] ? lock_acquire (kernel/locking/lockdep.c:5824) [ 97.729999][ T1080] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) [ 97.730002][ T1080] ? __mutex_lock (./arch/x86/include/asm/preempt.h:94 kernel/locking/mutex.c:595 kernel/locking/mutex.c:730) [ 97.730005][ T1080] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) [ 97.730008][ T1080] ? rtnl_newlink (net/core/rtnetlink.c:342 net/core/rtnetlink.c:4047) [ 97.730012][ T1080] ? __pfx___mutex_lock (kernel/locking/mutex.c:729) [ 97.730014][ T1080] ? __pfx_validate_nla (lib/nlattr.c:396) [ 97.730018][ T1080] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) [ 97.730024][ T1080] ? __rtnl_newlink (net/core/rtnetlink.c:3898) [ 97.730028][ T1080] rtnl_newlink (net/core/rtnetlink.c:350 net/core/rtnetlink.c:4049) [ 97.730032][ T1080] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3939) [ 97.730035][ T1080] ? find_held_lock (kernel/locking/lockdep.c:5341) [ 97.730039][ T1080] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) [ 97.730042][ T1080] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) [ 97.730047][ T1080] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/core/rtnetlink.c:6936) [ 97.730050][ T1080] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3939) [ 97.730053][ T1080] rtnetlink_rcv_msg (net/core/rtnetlink.c:6938) [ 97.730056][ T1080] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6841) [ 97.730059][ T1080] ? 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) [ 97.730061][ T1080] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) [ 97.730065][ T1080] ? __lock_acquire (kernel/locking/lockdep.c:5228) [ 97.730069][ T1080] netlink_rcv_skb (net/netlink/af_netlink.c:2544) [ 97.730072][ T1080] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6841) [ 97.730076][ T1080] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2521) [ 97.730083][ T1080] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) [ 97.730086][ T1080] ? 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) [ 97.730090][ T1080] netlink_unicast (net/netlink/af_netlink.c:1323 net/netlink/af_netlink.c:1349) [ 97.730094][ T1080] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1334) [ 97.730097][ T1080] ? find_held_lock (kernel/locking/lockdep.c:5341) [ 97.730102][ T1080] netlink_sendmsg (net/netlink/af_netlink.c:1893) [ 97.730106][ T1080] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1812) [ 97.730112][ T1080] ____sys_sendmsg (net/socket.c:718 net/socket.c:733 net/socket.c:2573) [ 97.730116][ T1080] ? __pfx_____sys_sendmsg (net/socket.c:2519) [ 97.730118][ T1080] ? __pfx_copy_msghdr_from_user (net/socket.c:2499) [ 97.730125][ T1080] ___sys_sendmsg (net/socket.c:2629) [ 97.730129][ T1080] ? __pfx____sys_sendmsg (net/socket.c:2616) [ 97.730133][ T1080] ? kasan_save_stack (mm/kasan/common.c:49) [ 97.730137][ T1080] ? kasan_save_stack (mm/kasan/common.c:48) [ 97.730140][ T1080] ? kasan_record_aux_stack (mm/kasan/generic.c:548) [ 97.730143][ T1080] ? __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) [ 97.730146][ T1080] ? __x64_sys_close (fs/open.c:1583 fs/open.c:1565 fs/open.c:1565) [ 97.730150][ T1080] ? do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 97.730152][ T1080] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 97.730155][ T1080] ? __lock_acquire (kernel/locking/lockdep.c:5228) [ 97.730158][ T1080] ? lock_downgrade (./arch/x86/include/asm/current.h:49 kernel/locking/lockdep.c:122 kernel/locking/lockdep.c:5747) [ 97.730162][ T1080] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) [ 97.730165][ T1080] ? find_held_lock (kernel/locking/lockdep.c:5341) [ 97.730169][ T1080] ? __lock_release (kernel/locking/lockdep.c:5527) [ 97.730172][ T1080] ? __virt_addr_valid (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:962 ./include/linux/mmzone.h:2077 arch/x86/mm/physaddr.c:65) [ 97.730176][ T1080] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) [ 97.730179][ T1080] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) [ 97.730183][ T1080] __sys_sendmsg (net/socket.c:2659) [ 97.730187][ T1080] ? __pfx___sys_sendmsg (net/socket.c:2644) [ 97.730195][ T1080] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 97.730197][ T1080] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 97.730200][ T1080] RIP: 0033:0x7fb6258469a7 [ 97.730204][ T1080] 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) [ 97.730208][ T1080] RSP: 002b:00007fff979965e8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 97.730211][ T1080] RAX: ffffffffffffffda RBX: 00007fff97996d10 RCX: 00007fb6258469a7 [ 97.730213][ T1080] RDX: 0000000000000000 RSI: 00007fff97996650 RDI: 0000000000000005 [ 97.730215][ T1080] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000 [ 97.730216][ T1080] R10: 000000001bb21910 R11: 0000000000000246 R12: 0000000000000004 Finger prints: print_circular_bug:check_noncircular:check_prev_add:validate_chain:__lock_acquire