====================================== | [ 851.543920][ T4574] #0: ffffffffa8feeb48 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink (net/core/rtnetlink.c:342 net/core/rtnetlink.c:4047) | [ 851.544189][ T4574] #1: ffff88800a6b2d80 (team->team_lock_key){+.+.}-{4:4}, at: team_add_slave (drivers/net/team/team_core.c:1988) | [ 851.544454][ T4574] | [ 851.544454][ T4574] stack backtrace: [ 851.544640][ T4574] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 851.544642][ T4574] Call Trace: [ 851.544644][ T4574] [ 851.544646][ T4574] dump_stack_lvl (lib/dump_stack.c:123) [ 851.544653][ T4574] print_circular_bug (kernel/locking/lockdep.c:2079) [ 851.544659][ T4574] check_noncircular (kernel/locking/lockdep.c:2208) [ 851.544663][ T4574] ? __pfx_check_noncircular (kernel/locking/lockdep.c:2184) [ 851.544667][ T4574] ? find_held_lock (kernel/locking/lockdep.c:5341) [ 851.544673][ T4574] ? alloc_chain_hlocks (kernel/locking/lockdep.c:3530) [ 851.544677][ T4574] check_prev_add (kernel/locking/lockdep.c:3164) [ 851.544682][ T4574] validate_chain (kernel/locking/lockdep.c:3283 kernel/locking/lockdep.c:3906) [ 851.544686][ T4574] ? stack_depot_save_flags (lib/stackdepot.c:672) [ 851.544692][ T4574] ? __pfx_validate_chain (kernel/locking/lockdep.c:3862) [ 851.544695][ T4574] ? 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) [ 851.544697][ T4574] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) [ 851.544701][ T4574] __lock_acquire (kernel/locking/lockdep.c:5228) [ 851.544706][ T4574] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) [ 851.544710][ T4574] lock_acquire.part.0 (kernel/locking/lockdep.c:469 kernel/locking/lockdep.c:5853) [ 851.544713][ T4574] ? __dev_open (./include/linux/netdevice.h:2738 net/core/dev.h:144 net/core/dev.c:1650) [ 851.544716][ T4574] ? validate_chain (kernel/locking/lockdep.c:3799 kernel/locking/lockdep.c:3819 kernel/locking/lockdep.c:3874) [ 851.544719][ T4574] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) [ 851.544722][ T4574] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 21)) [ 851.544725][ T4574] ? lock_acquire (kernel/locking/lockdep.c:5824) [ 851.544728][ T4574] ? __dev_open (./include/linux/netdevice.h:2738 net/core/dev.h:144 net/core/dev.c:1650) [ 851.544731][ T4574] __mutex_lock (kernel/locking/mutex.c:587 kernel/locking/mutex.c:730) [ 851.544734][ T4574] ? __dev_open (./include/linux/netdevice.h:2738 net/core/dev.h:144 net/core/dev.c:1650) [ 851.544737][ T4574] ? __dev_open (./include/linux/netdevice.h:2738 net/core/dev.h:144 net/core/dev.c:1650) [ 851.544739][ T4574] ? __pfx___mutex_lock (kernel/locking/mutex.c:729) [ 851.544743][ T4574] ? packet_notifier (net/packet/af_packet.c:4281) [ 851.544752][ T4574] ? __dev_open (./include/linux/netdevice.h:2738 net/core/dev.h:144 net/core/dev.c:1650) [ 851.544754][ T4574] __dev_open (./include/linux/netdevice.h:2738 net/core/dev.h:144 net/core/dev.c:1650) [ 851.544757][ T4574] ? mark_held_locks (kernel/locking/lockdep.c:4323) [ 851.544760][ T4574] ? __pfx___dev_open (net/core/dev.c:1609) [ 851.544762][ T4574] ? trace_percpu_alloc_percpu (./include/trace/events/percpu.h:11 (discriminator 21)) [ 851.544769][ T4574] netif_open (net/core/dev.c:1666) [ 851.544771][ T4574] ? __pfx_netif_open (net/core/dev.c:1660) [ 851.544775][ T4574] dev_open (./include/linux/netdevice.h:2738 ./include/linux/netdevice.h:2755 net/core/dev_api.c:190) [ 851.544780][ T4574] team_port_add (drivers/net/team/team_core.c:1229) [ 851.544785][ T4574] ? __pfx_team_port_add (drivers/net/team/team_core.c:1145) [ 851.544788][ T4574] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 851.544793][ T4574] ? validate_chain (kernel/locking/lockdep.c:3799 kernel/locking/lockdep.c:3819 kernel/locking/lockdep.c:3874) [ 851.544798][ T4574] team_add_slave (drivers/net/team/team_core.c:1989) [ 851.544802][ T4574] do_set_master (net/core/rtnetlink.c:2939) [ 851.544807][ T4574] do_setlink.constprop.0 (net/core/rtnetlink.c:3144) [ 851.544811][ T4574] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3012) [ 851.544815][ T4574] ? lock_acquire.part.0 (kernel/locking/lockdep.c:469 kernel/locking/lockdep.c:5853) [ 851.544818][ T4574] ? rtnl_newlink (net/core/rtnetlink.c:342 net/core/rtnetlink.c:4047) [ 851.544821][ T4574] ? rtnl_newlink (./include/linux/slab.h:901 net/core/rtnetlink.c:3948) [ 851.544823][ T4574] ? rtnetlink_rcv_msg (net/core/rtnetlink.c:6938) [ 851.544826][ T4574] ? __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) [ 851.544830][ T4574] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:79) [ 851.544834][ T4574] ? lock_acquire (kernel/locking/lockdep.c:5824) [ 851.544837][ T4574] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) [ 851.544841][ T4574] ? __mutex_lock (./arch/x86/include/asm/preempt.h:94 kernel/locking/mutex.c:595 kernel/locking/mutex.c:730) [ 851.544843][ T4574] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) [ 851.544847][ T4574] ? rtnl_newlink (net/core/rtnetlink.c:342 net/core/rtnetlink.c:4047) [ 851.544850][ T4574] ? __pfx___mutex_lock (kernel/locking/mutex.c:729) [ 851.544852][ T4574] ? __pfx_validate_nla (lib/nlattr.c:396) [ 851.544857][ T4574] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) [ 851.544862][ T4574] ? __rtnl_newlink (net/core/rtnetlink.c:3898) [ 851.544867][ T4574] rtnl_newlink (net/core/rtnetlink.c:350 net/core/rtnetlink.c:4049) [ 851.544871][ T4574] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3939) [ 851.544874][ T4574] ? find_held_lock (kernel/locking/lockdep.c:5341) [ 851.544879][ T4574] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) [ 851.544882][ T4574] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) [ 851.544887][ T4574] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/core/rtnetlink.c:6936) [ 851.544890][ T4574] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3939) [ 851.544893][ T4574] rtnetlink_rcv_msg (net/core/rtnetlink.c:6938) [ 851.544896][ T4574] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6841) [ 851.544899][ T4574] ? 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) [ 851.544901][ T4574] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) [ 851.544906][ T4574] ? __lock_acquire (kernel/locking/lockdep.c:5228) [ 851.544910][ T4574] netlink_rcv_skb (net/netlink/af_netlink.c:2544) [ 851.544914][ T4574] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6841) [ 851.544917][ T4574] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2521) [ 851.544925][ T4574] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) [ 851.544929][ T4574] ? 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) [ 851.544932][ T4574] netlink_unicast (net/netlink/af_netlink.c:1323 net/netlink/af_netlink.c:1349) [ 851.544937][ T4574] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1334) [ 851.544940][ T4574] ? find_held_lock (kernel/locking/lockdep.c:5341) [ 851.544945][ T4574] netlink_sendmsg (net/netlink/af_netlink.c:1893) [ 851.544950][ T4574] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1812) [ 851.544956][ T4574] ____sys_sendmsg (net/socket.c:718 net/socket.c:733 net/socket.c:2573) [ 851.544960][ T4574] ? __pfx_____sys_sendmsg (net/socket.c:2519) [ 851.544963][ T4574] ? __pfx_copy_msghdr_from_user (net/socket.c:2499) [ 851.544970][ T4574] ___sys_sendmsg (net/socket.c:2629) [ 851.544974][ T4574] ? __pfx____sys_sendmsg (net/socket.c:2616) [ 851.544978][ T4574] ? kasan_save_stack (mm/kasan/common.c:49) [ 851.544982][ T4574] ? kasan_save_stack (mm/kasan/common.c:48) [ 851.544984][ T4574] ? kasan_record_aux_stack (mm/kasan/generic.c:548) [ 851.544987][ T4574] ? __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) [ 851.544991][ T4574] ? __x64_sys_close (fs/open.c:1583 fs/open.c:1565 fs/open.c:1565) [ 851.544994][ T4574] ? do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 851.544997][ T4574] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 851.545001][ T4574] ? __lock_acquire (kernel/locking/lockdep.c:5228) [ 851.545004][ T4574] ? lock_downgrade (./arch/x86/include/asm/current.h:49 kernel/locking/lockdep.c:122 kernel/locking/lockdep.c:5747) [ 851.545008][ T4574] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) [ 851.545011][ T4574] ? find_held_lock (kernel/locking/lockdep.c:5341) [ 851.545015][ T4574] ? __lock_release (kernel/locking/lockdep.c:5527) [ 851.545018][ T4574] ? __virt_addr_valid (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:962 ./include/linux/mmzone.h:2077 arch/x86/mm/physaddr.c:65) [ 851.545022][ T4574] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) [ 851.545025][ T4574] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) [ 851.545029][ T4574] __sys_sendmsg (net/socket.c:2659) [ 851.545033][ T4574] ? __pfx___sys_sendmsg (net/socket.c:2644) [ 851.545041][ T4574] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 851.545044][ T4574] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 851.545047][ T4574] RIP: 0033:0x7f2233cc69a7 [ 851.545051][ T4574] 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) [ 851.545054][ T4574] RSP: 002b:00007ffe77f1aca8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 851.545057][ T4574] RAX: ffffffffffffffda RBX: 00007ffe77f1b3d0 RCX: 00007f2233cc69a7 [ 851.545059][ T4574] RDX: 0000000000000000 RSI: 00007ffe77f1ad10 RDI: 0000000000000005 [ 851.545061][ T4574] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000 [ 851.545063][ T4574] R10: 000000003a3a7910 R11: 0000000000000246 R12: 0000000000000004 Finger prints: print_circular_bug:check_noncircular:check_prev_add:validate_chain:__lock_acquire