====================================== | [1406.911771][T18221] #0: ffffffff961eeb48 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink (net/core/rtnetlink.c:342 net/core/rtnetlink.c:4047) | [1406.912042][T18221] #1: ffff8880110b2d80 (team->team_lock_key){+.+.}-{4:4}, at: team_add_slave (drivers/net/team/team_core.c:1988) | [ 1406.912304][T18221] | [ 1406.912304][T18221] stack backtrace: [ 1406.912494][T18221] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 1406.912496][T18221] Call Trace: [ 1406.912498][T18221] [1406.912500][T18221] dump_stack_lvl (lib/dump_stack.c:123) [1406.912507][T18221] print_circular_bug (kernel/locking/lockdep.c:2079) [1406.912511][T18221] check_noncircular (kernel/locking/lockdep.c:2208) [1406.912515][T18221] ? __pfx_check_noncircular (kernel/locking/lockdep.c:2184) [1406.912519][T18221] ? find_held_lock (kernel/locking/lockdep.c:5341) [1406.912526][T18221] ? alloc_chain_hlocks (kernel/locking/lockdep.c:3530) [1406.912529][T18221] check_prev_add (kernel/locking/lockdep.c:3164) [1406.912534][T18221] validate_chain (kernel/locking/lockdep.c:3283 kernel/locking/lockdep.c:3906) [1406.912539][T18221] ? stack_depot_save_flags (lib/stackdepot.c:672) [1406.912544][T18221] ? __pfx_validate_chain (kernel/locking/lockdep.c:3862) [1406.912547][T18221] ? 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) [1406.912549][T18221] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) [1406.912554][T18221] __lock_acquire (kernel/locking/lockdep.c:5228) [1406.912559][T18221] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) [1406.912562][T18221] lock_acquire.part.0 (kernel/locking/lockdep.c:469 kernel/locking/lockdep.c:5853) [1406.912565][T18221] ? __dev_open (./include/linux/netdevice.h:2738 net/core/dev.h:144 net/core/dev.c:1650) [1406.912568][T18221] ? validate_chain (kernel/locking/lockdep.c:3799 kernel/locking/lockdep.c:3819 kernel/locking/lockdep.c:3874) [1406.912571][T18221] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) [1406.912574][T18221] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 21)) [1406.912578][T18221] ? lock_acquire (kernel/locking/lockdep.c:5824) [1406.912580][T18221] ? __dev_open (./include/linux/netdevice.h:2738 net/core/dev.h:144 net/core/dev.c:1650) [1406.912583][T18221] __mutex_lock (kernel/locking/mutex.c:587 kernel/locking/mutex.c:730) [1406.912586][T18221] ? __dev_open (./include/linux/netdevice.h:2738 net/core/dev.h:144 net/core/dev.c:1650) [1406.912589][T18221] ? __dev_open (./include/linux/netdevice.h:2738 net/core/dev.h:144 net/core/dev.c:1650) [1406.912591][T18221] ? __pfx___mutex_lock (kernel/locking/mutex.c:729) [1406.912598][T18221] ? packet_notifier (net/packet/af_packet.c:4281) [1406.912606][T18221] ? __dev_open (./include/linux/netdevice.h:2738 net/core/dev.h:144 net/core/dev.c:1650) [1406.912608][T18221] __dev_open (./include/linux/netdevice.h:2738 net/core/dev.h:144 net/core/dev.c:1650) [1406.912610][T18221] ? mark_held_locks (kernel/locking/lockdep.c:4323) [1406.912613][T18221] ? __pfx___dev_open (net/core/dev.c:1609) [1406.912615][T18221] ? trace_percpu_alloc_percpu (./include/trace/events/percpu.h:11 (discriminator 21)) [1406.912621][T18221] netif_open (net/core/dev.c:1666) [1406.912624][T18221] ? __pfx_netif_open (net/core/dev.c:1660) [1406.912628][T18221] dev_open (./include/linux/netdevice.h:2738 ./include/linux/netdevice.h:2755 net/core/dev_api.c:190) [1406.912632][T18221] team_port_add (drivers/net/team/team_core.c:1229) [1406.912637][T18221] ? __pfx_team_port_add (drivers/net/team/team_core.c:1145) [1406.912640][T18221] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) [1406.912645][T18221] ? validate_chain (kernel/locking/lockdep.c:3799 kernel/locking/lockdep.c:3819 kernel/locking/lockdep.c:3874) [1406.912649][T18221] team_add_slave (drivers/net/team/team_core.c:1989) [1406.912653][T18221] do_set_master (net/core/rtnetlink.c:2939) [1406.912658][T18221] do_setlink.constprop.0 (net/core/rtnetlink.c:3144) [1406.912662][T18221] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3012) [1406.912666][T18221] ? lock_acquire.part.0 (kernel/locking/lockdep.c:469 kernel/locking/lockdep.c:5853) [1406.912669][T18221] ? rtnl_newlink (net/core/rtnetlink.c:342 net/core/rtnetlink.c:4047) [1406.912672][T18221] ? rtnl_newlink (./include/linux/slab.h:901 net/core/rtnetlink.c:3948) [1406.912674][T18221] ? rtnetlink_rcv_msg (net/core/rtnetlink.c:6938) [1406.912678][T18221] ? __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) [1406.912681][T18221] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:79) [1406.912685][T18221] ? lock_acquire (kernel/locking/lockdep.c:5824) [1406.912688][T18221] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) [1406.912692][T18221] ? __mutex_lock (./arch/x86/include/asm/preempt.h:94 kernel/locking/mutex.c:595 kernel/locking/mutex.c:730) [1406.912695][T18221] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) [1406.912698][T18221] ? rtnl_newlink (net/core/rtnetlink.c:342 net/core/rtnetlink.c:4047) [1406.912702][T18221] ? __pfx___mutex_lock (kernel/locking/mutex.c:729) [1406.912704][T18221] ? __pfx_validate_nla (lib/nlattr.c:396) [1406.912709][T18221] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) [1406.912714][T18221] ? __rtnl_newlink (net/core/rtnetlink.c:3898) [1406.912719][T18221] rtnl_newlink (net/core/rtnetlink.c:350 net/core/rtnetlink.c:4049) [1406.912724][T18221] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3939) [1406.912726][T18221] ? find_held_lock (kernel/locking/lockdep.c:5341) [1406.912731][T18221] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) [1406.912734][T18221] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) [1406.912739][T18221] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/core/rtnetlink.c:6936) [1406.912742][T18221] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3939) [1406.912745][T18221] rtnetlink_rcv_msg (net/core/rtnetlink.c:6938) [1406.912748][T18221] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6841) [1406.912751][T18221] ? 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) [1406.912753][T18221] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) [1406.912758][T18221] ? __lock_acquire (kernel/locking/lockdep.c:5228) [1406.912761][T18221] netlink_rcv_skb (net/netlink/af_netlink.c:2544) [1406.912764][T18221] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6841) [1406.912768][T18221] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2521) [1406.912776][T18221] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) [1406.912779][T18221] ? 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) [1406.912783][T18221] netlink_unicast (net/netlink/af_netlink.c:1323 net/netlink/af_netlink.c:1349) [1406.912787][T18221] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1334) [1406.912791][T18221] ? find_held_lock (kernel/locking/lockdep.c:5341) [1406.912796][T18221] netlink_sendmsg (net/netlink/af_netlink.c:1893) [1406.912800][T18221] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1812) [1406.912806][T18221] ____sys_sendmsg (net/socket.c:718 net/socket.c:733 net/socket.c:2573) [1406.912809][T18221] ? __pfx_____sys_sendmsg (net/socket.c:2519) [1406.912812][T18221] ? __pfx_copy_msghdr_from_user (net/socket.c:2499) [1406.912819][T18221] ___sys_sendmsg (net/socket.c:2629) [1406.912823][T18221] ? __pfx____sys_sendmsg (net/socket.c:2616) [1406.912827][T18221] ? kasan_save_stack (mm/kasan/common.c:49) [1406.912831][T18221] ? kasan_save_stack (mm/kasan/common.c:48) [1406.912834][T18221] ? kasan_record_aux_stack (mm/kasan/generic.c:548) [1406.912836][T18221] ? __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) [1406.912840][T18221] ? __x64_sys_close (fs/open.c:1583 fs/open.c:1565 fs/open.c:1565) [1406.912844][T18221] ? do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [1406.912846][T18221] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [1406.912849][T18221] ? __lock_acquire (kernel/locking/lockdep.c:5228) [1406.912852][T18221] ? lock_downgrade (./arch/x86/include/asm/current.h:49 kernel/locking/lockdep.c:122 kernel/locking/lockdep.c:5747) [1406.912856][T18221] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) [1406.912859][T18221] ? find_held_lock (kernel/locking/lockdep.c:5341) [1406.912864][T18221] ? __lock_release (kernel/locking/lockdep.c:5527) [1406.912866][T18221] ? __virt_addr_valid (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:962 ./include/linux/mmzone.h:2077 arch/x86/mm/physaddr.c:65) [1406.912870][T18221] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) [1406.912873][T18221] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) [1406.912877][T18221] __sys_sendmsg (net/socket.c:2659) [1406.912881][T18221] ? __pfx___sys_sendmsg (net/socket.c:2644) [1406.912889][T18221] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [1406.912892][T18221] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 1406.912895][T18221] RIP: 0033:0x7fd31bc689a7 [ 1406.912899][T18221] 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) [ 1406.912902][T18221] RSP: 002b:00007ffd54643118 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 1406.912905][T18221] RAX: ffffffffffffffda RBX: 00007ffd54643840 RCX: 00007fd31bc689a7 [ 1406.912907][T18221] RDX: 0000000000000000 RSI: 00007ffd54643180 RDI: 0000000000000005 [ 1406.912909][T18221] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000 [ 1406.912910][T18221] R10: 0000000002676910 R11: 0000000000000246 R12: 0000000000000004 Finger prints: print_circular_bug:check_noncircular:check_prev_add:validate_chain:__lock_acquire