====================================== | [1378.222783][T18529] #0: ffffffff997eeb48 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink (net/core/rtnetlink.c:342 net/core/rtnetlink.c:4047) | [1378.223050][T18529] #1: ffff8880103cad80 (team->team_lock_key){+.+.}-{4:4}, at: team_add_slave (drivers/net/team/team_core.c:1988) | [ 1378.223337][T18529] | [ 1378.223337][T18529] stack backtrace: [ 1378.223525][T18529] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 1378.223527][T18529] Call Trace: [ 1378.223529][T18529] [1378.223531][T18529] dump_stack_lvl (lib/dump_stack.c:123) [1378.223538][T18529] print_circular_bug (kernel/locking/lockdep.c:2079) [1378.223544][T18529] check_noncircular (kernel/locking/lockdep.c:2208) [1378.223547][T18529] ? find_held_lock (kernel/locking/lockdep.c:5341) [1378.223551][T18529] ? __pfx_check_noncircular (kernel/locking/lockdep.c:2184) [1378.223555][T18529] ? stack_depot_save_flags (lib/stackdepot.c:672) [1378.223560][T18529] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) [1378.223565][T18529] ? alloc_chain_hlocks (kernel/locking/lockdep.c:3530) [1378.223569][T18529] check_prev_add (kernel/locking/lockdep.c:3164) [1378.223572][T18529] ? validate_chain (kernel/locking/lockdep.c:3799 kernel/locking/lockdep.c:3819 kernel/locking/lockdep.c:3874) [1378.223576][T18529] validate_chain (kernel/locking/lockdep.c:3283 kernel/locking/lockdep.c:3906) [1378.223580][T18529] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) [1378.223583][T18529] ? __pfx_validate_chain (kernel/locking/lockdep.c:3862) [1378.223586][T18529] ? 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) [1378.223588][T18529] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) [1378.223592][T18529] __lock_acquire (kernel/locking/lockdep.c:5228) [1378.223598][T18529] lock_acquire.part.0 (kernel/locking/lockdep.c:469 kernel/locking/lockdep.c:5853) [1378.223601][T18529] ? __dev_open (./include/linux/netdevice.h:2738 net/core/dev.h:144 net/core/dev.c:1650) [1378.223604][T18529] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) [1378.223608][T18529] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 21)) [1378.223611][T18529] ? lock_acquire (kernel/locking/lockdep.c:5824) [1378.223613][T18529] ? __dev_open (./include/linux/netdevice.h:2738 net/core/dev.h:144 net/core/dev.c:1650) [1378.223616][T18529] __mutex_lock (kernel/locking/mutex.c:587 kernel/locking/mutex.c:730) [1378.223619][T18529] ? __dev_open (./include/linux/netdevice.h:2738 net/core/dev.h:144 net/core/dev.c:1650) [1378.223621][T18529] ? __lock_release (kernel/locking/lockdep.c:5527) [1378.223624][T18529] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) [1378.223627][T18529] ? __dev_open (./include/linux/netdevice.h:2738 net/core/dev.h:144 net/core/dev.c:1650) [1378.223629][T18529] ? 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) [1378.223631][T18529] ? __pfx___mutex_lock (kernel/locking/mutex.c:729) [1378.223636][T18529] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) [1378.223642][T18529] ? __dev_open (./include/linux/netdevice.h:2738 net/core/dev.h:144 net/core/dev.c:1650) [1378.223644][T18529] __dev_open (./include/linux/netdevice.h:2738 net/core/dev.h:144 net/core/dev.c:1650) [1378.223646][T18529] ? mark_held_locks (kernel/locking/lockdep.c:4323) [1378.223649][T18529] ? __pfx___dev_open (net/core/dev.c:1609) [1378.223652][T18529] ? trace_percpu_alloc_percpu (./include/trace/events/percpu.h:11 (discriminator 21)) [1378.223658][T18529] netif_open (net/core/dev.c:1666) [1378.223660][T18529] ? __pfx_netif_open (net/core/dev.c:1660) [1378.223664][T18529] dev_open (./include/linux/netdevice.h:2738 ./include/linux/netdevice.h:2755 net/core/dev_api.c:190) [1378.223669][T18529] team_port_add (drivers/net/team/team_core.c:1229) [1378.223674][T18529] ? __pfx_team_port_add (drivers/net/team/team_core.c:1145) [1378.223677][T18529] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) [1378.223682][T18529] ? validate_chain (kernel/locking/lockdep.c:3799 kernel/locking/lockdep.c:3819 kernel/locking/lockdep.c:3874) [1378.223686][T18529] team_add_slave (drivers/net/team/team_core.c:1989) [1378.223690][T18529] do_set_master (net/core/rtnetlink.c:2939) [1378.223694][T18529] do_setlink.constprop.0 (net/core/rtnetlink.c:3144) [1378.223699][T18529] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3012) [1378.223702][T18529] ? lock_acquire.part.0 (kernel/locking/lockdep.c:469 kernel/locking/lockdep.c:5853) [1378.223705][T18529] ? rtnl_newlink (net/core/rtnetlink.c:342 net/core/rtnetlink.c:4047) [1378.223708][T18529] ? rtnl_newlink (./include/linux/slab.h:901 net/core/rtnetlink.c:3948) [1378.223710][T18529] ? rtnetlink_rcv_msg (net/core/rtnetlink.c:6938) [1378.223713][T18529] ? __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) [1378.223717][T18529] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:79) [1378.223721][T18529] ? lock_acquire (kernel/locking/lockdep.c:5824) [1378.223724][T18529] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) [1378.223727][T18529] ? __mutex_lock (./arch/x86/include/asm/preempt.h:94 kernel/locking/mutex.c:595 kernel/locking/mutex.c:730) [1378.223730][T18529] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) [1378.223734][T18529] ? rtnl_newlink (net/core/rtnetlink.c:342 net/core/rtnetlink.c:4047) [1378.223737][T18529] ? __pfx___mutex_lock (kernel/locking/mutex.c:729) [1378.223739][T18529] ? __pfx_validate_nla (lib/nlattr.c:396) [1378.223743][T18529] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) [1378.223749][T18529] ? __rtnl_newlink (net/core/rtnetlink.c:3898) [1378.223754][T18529] rtnl_newlink (net/core/rtnetlink.c:350 net/core/rtnetlink.c:4049) [1378.223758][T18529] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3939) [1378.223760][T18529] ? find_held_lock (kernel/locking/lockdep.c:5341) [1378.223765][T18529] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) [1378.223768][T18529] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) [1378.223773][T18529] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/core/rtnetlink.c:6936) [1378.223776][T18529] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3939) [1378.223779][T18529] rtnetlink_rcv_msg (net/core/rtnetlink.c:6938) [1378.223782][T18529] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6841) [1378.223785][T18529] ? 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) [1378.223787][T18529] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) [1378.223791][T18529] ? __lock_acquire (kernel/locking/lockdep.c:5228) [1378.223795][T18529] netlink_rcv_skb (net/netlink/af_netlink.c:2544) [1378.223799][T18529] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6841) [1378.223803][T18529] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2521) [1378.223810][T18529] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) [1378.223813][T18529] ? 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) [1378.223817][T18529] netlink_unicast (net/netlink/af_netlink.c:1323 net/netlink/af_netlink.c:1349) [1378.223821][T18529] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1334) [1378.223824][T18529] ? find_held_lock (kernel/locking/lockdep.c:5341) [1378.223829][T18529] netlink_sendmsg (net/netlink/af_netlink.c:1893) [1378.223834][T18529] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1812) [1378.223840][T18529] ____sys_sendmsg (net/socket.c:718 net/socket.c:733 net/socket.c:2573) [1378.223844][T18529] ? __pfx_____sys_sendmsg (net/socket.c:2519) [1378.223846][T18529] ? __pfx_copy_msghdr_from_user (net/socket.c:2499) [1378.223853][T18529] ___sys_sendmsg (net/socket.c:2629) [1378.223857][T18529] ? __pfx____sys_sendmsg (net/socket.c:2616) [1378.223861][T18529] ? kasan_save_stack (mm/kasan/common.c:49) [1378.223865][T18529] ? kasan_save_stack (mm/kasan/common.c:48) [1378.223867][T18529] ? kasan_record_aux_stack (mm/kasan/generic.c:548) [1378.223871][T18529] ? __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) [1378.223875][T18529] ? __x64_sys_close (fs/open.c:1583 fs/open.c:1565 fs/open.c:1565) [1378.223879][T18529] ? do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [1378.223881][T18529] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [1378.223885][T18529] ? __lock_acquire (kernel/locking/lockdep.c:5228) [1378.223888][T18529] ? lock_downgrade (./arch/x86/include/asm/current.h:49 kernel/locking/lockdep.c:122 kernel/locking/lockdep.c:5747) [1378.223892][T18529] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) [1378.223895][T18529] ? find_held_lock (kernel/locking/lockdep.c:5341) [1378.223899][T18529] ? __lock_release (kernel/locking/lockdep.c:5527) [1378.223902][T18529] ? __virt_addr_valid (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:962 ./include/linux/mmzone.h:2077 arch/x86/mm/physaddr.c:65) [1378.223906][T18529] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) [1378.223908][T18529] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) [1378.223913][T18529] __sys_sendmsg (net/socket.c:2659) [1378.223916][T18529] ? __pfx___sys_sendmsg (net/socket.c:2644) [1378.223924][T18529] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [1378.223927][T18529] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 1378.223929][T18529] RIP: 0033:0x7ff39f7899a7 [ 1378.223933][T18529] 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) [ 1378.223936][T18529] RSP: 002b:00007ffff11c5f38 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 1378.223940][T18529] RAX: ffffffffffffffda RBX: 00007ffff11c6660 RCX: 00007ff39f7899a7 [ 1378.223942][T18529] RDX: 0000000000000000 RSI: 00007ffff11c5fa0 RDI: 0000000000000005 [ 1378.223943][T18529] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000 [ 1378.223945][T18529] R10: 0000000033830910 R11: 0000000000000246 R12: 0000000000000004 Finger prints: print_circular_bug:check_noncircular:check_prev_add:validate_chain:__lock_acquire