====================================== | [ 101.976308][ T879] #0: ffffffffad7eeb48 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink (net/core/rtnetlink.c:342 net/core/rtnetlink.c:4047) | [ 101.976583][ T879] #1: ffff88802ab7ad80 (team->team_lock_key){+.+.}-{4:4}, at: team_add_slave (drivers/net/team/team_core.c:1988) | [ 101.976856][ T879] | [ 101.976856][ T879] stack backtrace: [ 101.977045][ T879] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 101.977048][ T879] Call Trace: [ 101.977050][ T879] [ 101.977052][ T879] dump_stack_lvl (lib/dump_stack.c:123) [ 101.977059][ T879] print_circular_bug (kernel/locking/lockdep.c:2079) [ 101.977064][ T879] check_noncircular (kernel/locking/lockdep.c:2208) [ 101.977067][ T879] ? find_held_lock (kernel/locking/lockdep.c:5341) [ 101.977072][ T879] ? __pfx_check_noncircular (kernel/locking/lockdep.c:2184) [ 101.977075][ T879] ? stack_depot_save_flags (lib/stackdepot.c:672) [ 101.977081][ T879] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) [ 101.977087][ T879] ? alloc_chain_hlocks (kernel/locking/lockdep.c:3530) [ 101.977091][ T879] check_prev_add (kernel/locking/lockdep.c:3164) [ 101.977094][ T879] ? validate_chain (kernel/locking/lockdep.c:3799 kernel/locking/lockdep.c:3819 kernel/locking/lockdep.c:3874) [ 101.977098][ T879] validate_chain (kernel/locking/lockdep.c:3283 kernel/locking/lockdep.c:3906) [ 101.977102][ T879] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) [ 101.977105][ T879] ? __pfx_validate_chain (kernel/locking/lockdep.c:3862) [ 101.977108][ T879] ? 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) [ 101.977110][ T879] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) [ 101.977114][ T879] __lock_acquire (kernel/locking/lockdep.c:5228) [ 101.977120][ T879] lock_acquire.part.0 (kernel/locking/lockdep.c:469 kernel/locking/lockdep.c:5853) [ 101.977123][ T879] ? __dev_open (./include/linux/netdevice.h:2738 net/core/dev.h:144 net/core/dev.c:1650) [ 101.977126][ T879] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) [ 101.977130][ T879] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 21)) [ 101.977133][ T879] ? lock_acquire (kernel/locking/lockdep.c:5824) [ 101.977135][ T879] ? __dev_open (./include/linux/netdevice.h:2738 net/core/dev.h:144 net/core/dev.c:1650) [ 101.977139][ T879] __mutex_lock (kernel/locking/mutex.c:587 kernel/locking/mutex.c:730) [ 101.977141][ T879] ? __dev_open (./include/linux/netdevice.h:2738 net/core/dev.h:144 net/core/dev.c:1650) [ 101.977143][ T879] ? __lock_release (kernel/locking/lockdep.c:5527) [ 101.977146][ T879] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) [ 101.977149][ T879] ? __dev_open (./include/linux/netdevice.h:2738 net/core/dev.h:144 net/core/dev.c:1650) [ 101.977151][ T879] ? 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) [ 101.977153][ T879] ? __pfx___mutex_lock (kernel/locking/mutex.c:729) [ 101.977158][ T879] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) [ 101.977163][ T879] ? __dev_open (./include/linux/netdevice.h:2738 net/core/dev.h:144 net/core/dev.c:1650) [ 101.977165][ T879] __dev_open (./include/linux/netdevice.h:2738 net/core/dev.h:144 net/core/dev.c:1650) [ 101.977168][ T879] ? mark_held_locks (kernel/locking/lockdep.c:4323) [ 101.977170][ T879] ? __pfx___dev_open (net/core/dev.c:1609) [ 101.977173][ T879] ? trace_percpu_alloc_percpu (./include/trace/events/percpu.h:11 (discriminator 21)) [ 101.977178][ T879] netif_open (net/core/dev.c:1666) [ 101.977181][ T879] ? __pfx_netif_open (net/core/dev.c:1660) [ 101.977185][ T879] dev_open (./include/linux/netdevice.h:2738 ./include/linux/netdevice.h:2755 net/core/dev_api.c:190) [ 101.977189][ T879] team_port_add (drivers/net/team/team_core.c:1229) [ 101.977193][ T879] ? __pfx_team_port_add (drivers/net/team/team_core.c:1145) [ 101.977197][ T879] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 101.977201][ T879] ? validate_chain (kernel/locking/lockdep.c:3799 kernel/locking/lockdep.c:3819 kernel/locking/lockdep.c:3874) [ 101.977206][ T879] team_add_slave (drivers/net/team/team_core.c:1989) [ 101.977210][ T879] do_set_master (net/core/rtnetlink.c:2939) [ 101.977214][ T879] do_setlink.constprop.0 (net/core/rtnetlink.c:3144) [ 101.977218][ T879] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3012) [ 101.977222][ T879] ? lock_acquire.part.0 (kernel/locking/lockdep.c:469 kernel/locking/lockdep.c:5853) [ 101.977226][ T879] ? rtnl_newlink (net/core/rtnetlink.c:342 net/core/rtnetlink.c:4047) [ 101.977229][ T879] ? rtnl_newlink (./include/linux/slab.h:901 net/core/rtnetlink.c:3948) [ 101.977232][ T879] ? rtnetlink_rcv_msg (net/core/rtnetlink.c:6938) [ 101.977235][ T879] ? __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) [ 101.977239][ T879] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:79) [ 101.977243][ T879] ? lock_acquire (kernel/locking/lockdep.c:5824) [ 101.977246][ T879] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) [ 101.977250][ T879] ? __mutex_lock (./arch/x86/include/asm/preempt.h:94 kernel/locking/mutex.c:595 kernel/locking/mutex.c:730) [ 101.977253][ T879] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) [ 101.977256][ T879] ? rtnl_newlink (net/core/rtnetlink.c:342 net/core/rtnetlink.c:4047) [ 101.977259][ T879] ? __pfx___mutex_lock (kernel/locking/mutex.c:729) [ 101.977261][ T879] ? __pfx_validate_nla (lib/nlattr.c:396) [ 101.977266][ T879] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) [ 101.977271][ T879] ? __rtnl_newlink (net/core/rtnetlink.c:3898) [ 101.977276][ T879] rtnl_newlink (net/core/rtnetlink.c:350 net/core/rtnetlink.c:4049) [ 101.977280][ T879] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3939) [ 101.977282][ T879] ? find_held_lock (kernel/locking/lockdep.c:5341) [ 101.977287][ T879] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) [ 101.977290][ T879] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) [ 101.977295][ T879] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/core/rtnetlink.c:6936) [ 101.977298][ T879] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3939) [ 101.977301][ T879] rtnetlink_rcv_msg (net/core/rtnetlink.c:6938) [ 101.977304][ T879] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6841) [ 101.977307][ T879] ? 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) [ 101.977309][ T879] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) [ 101.977313][ T879] ? __lock_acquire (kernel/locking/lockdep.c:5228) [ 101.977317][ T879] netlink_rcv_skb (net/netlink/af_netlink.c:2544) [ 101.977320][ T879] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6841) [ 101.977323][ T879] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2521) [ 101.977330][ T879] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) [ 101.977334][ T879] ? 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) [ 101.977337][ T879] netlink_unicast (net/netlink/af_netlink.c:1323 net/netlink/af_netlink.c:1349) [ 101.977341][ T879] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1334) [ 101.977345][ T879] ? find_held_lock (kernel/locking/lockdep.c:5341) [ 101.977350][ T879] netlink_sendmsg (net/netlink/af_netlink.c:1893) [ 101.977354][ T879] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1812) [ 101.977360][ T879] ____sys_sendmsg (net/socket.c:718 net/socket.c:733 net/socket.c:2573) [ 101.977363][ T879] ? __pfx_____sys_sendmsg (net/socket.c:2519) [ 101.977366][ T879] ? __pfx_copy_msghdr_from_user (net/socket.c:2499) [ 101.977372][ T879] ___sys_sendmsg (net/socket.c:2629) [ 101.977376][ T879] ? __pfx____sys_sendmsg (net/socket.c:2616) [ 101.977380][ T879] ? kasan_save_stack (mm/kasan/common.c:49) [ 101.977385][ T879] ? kasan_save_stack (mm/kasan/common.c:48) [ 101.977387][ T879] ? kasan_record_aux_stack (mm/kasan/generic.c:548) [ 101.977391][ T879] ? __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) [ 101.977396][ T879] ? __x64_sys_close (fs/open.c:1583 fs/open.c:1565 fs/open.c:1565) [ 101.977399][ T879] ? do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 101.977401][ T879] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 101.977404][ T879] ? __lock_acquire (kernel/locking/lockdep.c:5228) [ 101.977408][ T879] ? lock_downgrade (./arch/x86/include/asm/current.h:49 kernel/locking/lockdep.c:122 kernel/locking/lockdep.c:5747) [ 101.977411][ T879] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) [ 101.977415][ T879] ? find_held_lock (kernel/locking/lockdep.c:5341) [ 101.977419][ T879] ? __lock_release (kernel/locking/lockdep.c:5527) [ 101.977422][ T879] ? __virt_addr_valid (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:962 ./include/linux/mmzone.h:2077 arch/x86/mm/physaddr.c:65) [ 101.977426][ T879] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) [ 101.977429][ T879] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) [ 101.977433][ T879] __sys_sendmsg (net/socket.c:2659) [ 101.977437][ T879] ? __pfx___sys_sendmsg (net/socket.c:2644) [ 101.977444][ T879] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 101.977447][ T879] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 101.977450][ T879] RIP: 0033:0x7fa80cd7c9a7 [ 101.977454][ T879] 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) [ 101.977457][ T879] RSP: 002b:00007ffdb8065a58 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 101.977460][ T879] RAX: ffffffffffffffda RBX: 00007ffdb8066180 RCX: 00007fa80cd7c9a7 [ 101.977462][ T879] RDX: 0000000000000000 RSI: 00007ffdb8065ac0 RDI: 0000000000000005 [ 101.977464][ T879] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000 [ 101.977465][ T879] R10: 000000002c625910 R11: 0000000000000246 R12: 0000000000000004 Finger prints: print_circular_bug:check_noncircular:check_prev_add:validate_chain:__lock_acquire