====================================== | [1393.134412][T28537] #0: ffffffffa13eeb48 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink (net/core/rtnetlink.c:342 net/core/rtnetlink.c:4047) | [1393.134729][T28537] #1: ffff88800bd8ad80 (team->team_lock_key){+.+.}-{4:4}, at: team_add_slave (drivers/net/team/team_core.c:1988) | [ 1393.135021][T28537] | [ 1393.135021][T28537] stack backtrace: [ 1393.135239][T28537] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 1393.135242][T28537] Call Trace: [ 1393.135244][T28537] [1393.135246][T28537] dump_stack_lvl (lib/dump_stack.c:123) [1393.135254][T28537] print_circular_bug (kernel/locking/lockdep.c:2079) [1393.135260][T28537] check_noncircular (kernel/locking/lockdep.c:2208) [1393.135264][T28537] ? __pfx_check_noncircular (kernel/locking/lockdep.c:2184) [1393.135267][T28537] ? __pfx_validate_chain (kernel/locking/lockdep.c:3862) [1393.135271][T28537] ? 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) [1393.135273][T28537] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) [1393.135278][T28537] ? alloc_chain_hlocks (kernel/locking/lockdep.c:3530) [1393.135280][T28537] ? __lock_acquire (kernel/locking/lockdep.c:5228) [1393.135285][T28537] check_prev_add (kernel/locking/lockdep.c:3164) [1393.135289][T28537] validate_chain (kernel/locking/lockdep.c:3283 kernel/locking/lockdep.c:3906) [1393.135294][T28537] ? 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) [1393.135296][T28537] ? __pfx_validate_chain (kernel/locking/lockdep.c:3862) [1393.135299][T28537] ? 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) [1393.135301][T28537] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) [1393.135304][T28537] ? mark_held_locks (kernel/locking/lockdep.c:4323) [1393.135308][T28537] __lock_acquire (kernel/locking/lockdep.c:5228) [1393.135314][T28537] lock_acquire.part.0 (kernel/locking/lockdep.c:469 kernel/locking/lockdep.c:5853) [1393.135317][T28537] ? __dev_open (./include/linux/netdevice.h:2738 net/core/dev.h:144 net/core/dev.c:1650) [1393.135321][T28537] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) [1393.135324][T28537] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 21)) [1393.135328][T28537] ? lock_acquire (kernel/locking/lockdep.c:5824) [1393.135330][T28537] ? __dev_open (./include/linux/netdevice.h:2738 net/core/dev.h:144 net/core/dev.c:1650) [1393.135334][T28537] __mutex_lock (kernel/locking/mutex.c:587 kernel/locking/mutex.c:730) [1393.135337][T28537] ? __dev_open (./include/linux/netdevice.h:2738 net/core/dev.h:144 net/core/dev.c:1650) [1393.135339][T28537] ? __lock_release (kernel/locking/lockdep.c:5527) [1393.135342][T28537] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) [1393.135345][T28537] ? __dev_open (./include/linux/netdevice.h:2738 net/core/dev.h:144 net/core/dev.c:1650) [1393.135347][T28537] ? 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) [1393.135349][T28537] ? __pfx___mutex_lock (kernel/locking/mutex.c:729) [1393.135355][T28537] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) [1393.135361][T28537] ? __dev_open (./include/linux/netdevice.h:2738 net/core/dev.h:144 net/core/dev.c:1650) [1393.135364][T28537] __dev_open (./include/linux/netdevice.h:2738 net/core/dev.h:144 net/core/dev.c:1650) [1393.135366][T28537] ? mark_held_locks (kernel/locking/lockdep.c:4323) [1393.135369][T28537] ? __pfx___dev_open (net/core/dev.c:1609) [1393.135371][T28537] ? trace_percpu_alloc_percpu (./include/trace/events/percpu.h:11 (discriminator 21)) [1393.135378][T28537] netif_open (net/core/dev.c:1666) [1393.135380][T28537] ? __pfx_netif_open (net/core/dev.c:1660) [1393.135384][T28537] dev_open (./include/linux/netdevice.h:2738 ./include/linux/netdevice.h:2755 net/core/dev_api.c:190) [1393.135389][T28537] team_port_add (drivers/net/team/team_core.c:1229) [1393.135394][T28537] ? __pfx_team_port_add (drivers/net/team/team_core.c:1145) [1393.135398][T28537] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) [1393.135403][T28537] ? validate_chain (kernel/locking/lockdep.c:3799 kernel/locking/lockdep.c:3819 kernel/locking/lockdep.c:3874) [1393.135407][T28537] team_add_slave (drivers/net/team/team_core.c:1989) [1393.135412][T28537] do_set_master (net/core/rtnetlink.c:2939) [1393.135416][T28537] do_setlink.constprop.0 (net/core/rtnetlink.c:3144) [1393.135421][T28537] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3012) [1393.135425][T28537] ? lock_acquire.part.0 (kernel/locking/lockdep.c:469 kernel/locking/lockdep.c:5853) [1393.135428][T28537] ? rtnl_newlink (net/core/rtnetlink.c:342 net/core/rtnetlink.c:4047) [1393.135431][T28537] ? rtnl_newlink (./include/linux/slab.h:901 net/core/rtnetlink.c:3948) [1393.135434][T28537] ? rtnetlink_rcv_msg (net/core/rtnetlink.c:6938) [1393.135439][T28537] ? __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) [1393.135446][T28537] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:79) [1393.135453][T28537] ? lock_acquire (kernel/locking/lockdep.c:5824) [1393.135458][T28537] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) [1393.135462][T28537] ? __mutex_lock (./arch/x86/include/asm/preempt.h:94 kernel/locking/mutex.c:595 kernel/locking/mutex.c:730) [1393.135464][T28537] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) [1393.135468][T28537] ? rtnl_newlink (net/core/rtnetlink.c:342 net/core/rtnetlink.c:4047) [1393.135471][T28537] ? __pfx___mutex_lock (kernel/locking/mutex.c:729) [1393.135473][T28537] ? __pfx_validate_nla (lib/nlattr.c:396) [1393.135479][T28537] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) [1393.135485][T28537] ? __rtnl_newlink (net/core/rtnetlink.c:3898) [1393.135490][T28537] rtnl_newlink (net/core/rtnetlink.c:350 net/core/rtnetlink.c:4049) [1393.135494][T28537] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3939) [1393.135497][T28537] ? find_held_lock (kernel/locking/lockdep.c:5341) [1393.135502][T28537] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) [1393.135505][T28537] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) [1393.135510][T28537] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/core/rtnetlink.c:6936) [1393.135513][T28537] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3939) [1393.135516][T28537] rtnetlink_rcv_msg (net/core/rtnetlink.c:6938) [1393.135520][T28537] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6841) [1393.135523][T28537] ? 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) [1393.135525][T28537] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) [1393.135529][T28537] ? __lock_acquire (kernel/locking/lockdep.c:5228) [1393.135533][T28537] netlink_rcv_skb (net/netlink/af_netlink.c:2544) [1393.135537][T28537] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6841) [1393.135541][T28537] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2521) [1393.135548][T28537] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) [1393.135552][T28537] ? 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) [1393.135555][T28537] netlink_unicast (net/netlink/af_netlink.c:1323 net/netlink/af_netlink.c:1349) [1393.135560][T28537] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1334) [1393.135563][T28537] ? find_held_lock (kernel/locking/lockdep.c:5341) [1393.135568][T28537] netlink_sendmsg (net/netlink/af_netlink.c:1893) [1393.135572][T28537] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1812) [1393.135583][T28537] ____sys_sendmsg (net/socket.c:718 net/socket.c:733 net/socket.c:2573) [1393.135591][T28537] ? __pfx_____sys_sendmsg (net/socket.c:2519) [1393.135595][T28537] ? __pfx_copy_msghdr_from_user (net/socket.c:2499) [1393.135603][T28537] ___sys_sendmsg (net/socket.c:2629) [1393.135607][T28537] ? __pfx____sys_sendmsg (net/socket.c:2616) [1393.135611][T28537] ? kasan_save_stack (mm/kasan/common.c:49) [1393.135615][T28537] ? kasan_save_stack (mm/kasan/common.c:48) [1393.135618][T28537] ? kasan_record_aux_stack (mm/kasan/generic.c:548) [1393.135621][T28537] ? __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) [1393.135625][T28537] ? __x64_sys_close (fs/open.c:1583 fs/open.c:1565 fs/open.c:1565) [1393.135628][T28537] ? do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [1393.135630][T28537] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [1393.135633][T28537] ? __lock_acquire (kernel/locking/lockdep.c:5228) [1393.135636][T28537] ? lock_downgrade (./arch/x86/include/asm/current.h:49 kernel/locking/lockdep.c:122 kernel/locking/lockdep.c:5747) [1393.135641][T28537] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) [1393.135644][T28537] ? find_held_lock (kernel/locking/lockdep.c:5341) [1393.135649][T28537] ? __lock_release (kernel/locking/lockdep.c:5527) [1393.135651][T28537] ? __virt_addr_valid (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:962 ./include/linux/mmzone.h:2077 arch/x86/mm/physaddr.c:65) [1393.135655][T28537] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) [1393.135658][T28537] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) [1393.135663][T28537] __sys_sendmsg (net/socket.c:2659) [1393.135666][T28537] ? __pfx___sys_sendmsg (net/socket.c:2644) [1393.135674][T28537] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [1393.135677][T28537] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 1393.135680][T28537] RIP: 0033:0x7f3b7fb459a7 [ 1393.135685][T28537] 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) [ 1393.135688][T28537] RSP: 002b:00007ffe8be7eee8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 1393.135691][T28537] RAX: ffffffffffffffda RBX: 00007ffe8be7f610 RCX: 00007f3b7fb459a7 [ 1393.135693][T28537] RDX: 0000000000000000 RSI: 00007ffe8be7ef50 RDI: 0000000000000005 [ 1393.135695][T28537] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000 [ 1393.135697][T28537] R10: 00000000208ef910 R11: 0000000000000246 R12: 0000000000000004 Finger prints: print_circular_bug:check_noncircular:check_prev_add:validate_chain:__lock_acquire