====================================== | [ 11.051399][ T244] #0: ffffffffafe0ae48 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink (net/core/rtnetlink.c:342 net/core/rtnetlink.c:4047) | [ 11.051679][ T244] #1: ffff888005d5ac90 (&dev->lock){+.+.}-{4:4}, at: do_setlink.constprop.0 (./include/linux/netdevice.h:2712 net/core/rtnetlink.c:3089) | [ 11.051994][ T244] | [ 11.051994][ T244] stack backtrace: [ 11.052191][ T244] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 11.052193][ T244] Call Trace: [ 11.052195][ T244] [ 11.052196][ T244] dump_stack_lvl (lib/dump_stack.c:123) [ 11.052203][ T244] print_circular_bug (kernel/locking/lockdep.c:2079) [ 11.052208][ T244] check_noncircular (kernel/locking/lockdep.c:2208) [ 11.052212][ T244] ? __pfx_check_noncircular (kernel/locking/lockdep.c:2184) [ 11.052216][ T244] ? 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) [ 11.052219][ T244] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) [ 11.052224][ T244] ? alloc_chain_hlocks (kernel/locking/lockdep.c:3530) [ 11.052228][ T244] check_prev_add (kernel/locking/lockdep.c:3164) [ 11.052234][ T244] validate_chain (kernel/locking/lockdep.c:3283 kernel/locking/lockdep.c:3906) [ 11.052239][ T244] ? __pfx_validate_chain (kernel/locking/lockdep.c:3862) [ 11.052243][ T244] ? 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) [ 11.052246][ T244] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) [ 11.052250][ T244] __lock_acquire (kernel/locking/lockdep.c:5228) [ 11.052257][ T244] lock_acquire.part.0 (kernel/locking/lockdep.c:469 kernel/locking/lockdep.c:5853) [ 11.052260][ T244] ? team_set_mac_address (drivers/net/team/team_core.c:1817) [ 11.052264][ T244] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) [ 11.052267][ T244] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 21)) [ 11.052271][ T244] ? lock_acquire (kernel/locking/lockdep.c:5824) [ 11.052273][ T244] ? team_set_mac_address (drivers/net/team/team_core.c:1817) [ 11.052277][ T244] __mutex_lock (kernel/locking/mutex.c:587 kernel/locking/mutex.c:730) [ 11.052280][ T244] ? team_set_mac_address (drivers/net/team/team_core.c:1817) [ 11.052283][ T244] ? __lock_release (kernel/locking/lockdep.c:5527) [ 11.052285][ T244] ? packet_notifier (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/packet/af_packet.c:4279) [ 11.052289][ T244] ? team_set_mac_address (drivers/net/team/team_core.c:1817) [ 11.052292][ T244] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) [ 11.052294][ T244] ? __pfx___mutex_lock (kernel/locking/mutex.c:729) [ 11.052299][ T244] ? __pfx_br_device_event (net/bridge/br.c:29) [ 11.052303][ T244] ? dev_addr_mod (net/core/dev_addr_lists.c:584) [ 11.052308][ T244] ? team_set_mac_address (drivers/net/team/team_core.c:1817) [ 11.052310][ T244] team_set_mac_address (drivers/net/team/team_core.c:1817) [ 11.052314][ T244] netif_set_mac_address (net/core/dev.c:9420) [ 11.052317][ T244] ? __pfx___mutex_lock (kernel/locking/mutex.c:729) [ 11.052321][ T244] ? __pfx_netif_set_mac_address (net/core/dev.c:9406) [ 11.052326][ T244] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 21)) [ 11.052330][ T244] ? __kmalloc_noprof (mm/slub.c:4307) [ 11.052334][ T244] do_setlink.constprop.0 (./include/linux/netdevice.h:2738 net/core/rtnetlink.c:3091) [ 11.052339][ T244] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3012) [ 11.052343][ T244] ? lock_acquire.part.0 (kernel/locking/lockdep.c:469 kernel/locking/lockdep.c:5853) [ 11.052345][ T244] ? rtnl_newlink (net/core/rtnetlink.c:342 net/core/rtnetlink.c:4047) [ 11.052349][ T244] ? rtnl_newlink (./include/linux/slab.h:901 net/core/rtnetlink.c:3948) [ 11.052351][ T244] ? rtnetlink_rcv_msg (net/core/rtnetlink.c:6938) [ 11.052355][ T244] ? __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) [ 11.052360][ T244] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:79) [ 11.052365][ T244] ? lock_acquire (kernel/locking/lockdep.c:5824) [ 11.052368][ T244] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) [ 11.052371][ T244] ? __mutex_lock (./arch/x86/include/asm/preempt.h:94 kernel/locking/mutex.c:595 kernel/locking/mutex.c:730) [ 11.052375][ T244] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) [ 11.052379][ T244] ? rtnl_newlink (net/core/rtnetlink.c:342 net/core/rtnetlink.c:4047) [ 11.052382][ T244] ? __pfx___mutex_lock (kernel/locking/mutex.c:729) [ 11.052385][ T244] ? __pfx_validate_nla (lib/nlattr.c:396) [ 11.052390][ T244] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) [ 11.052397][ T244] ? __rtnl_newlink (net/core/rtnetlink.c:3898) [ 11.052402][ T244] rtnl_newlink (net/core/rtnetlink.c:350 net/core/rtnetlink.c:4049) [ 11.052407][ T244] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3939) [ 11.052410][ T244] ? find_held_lock (kernel/locking/lockdep.c:5341) [ 11.052414][ T244] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) [ 11.052416][ T244] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) [ 11.052421][ T244] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/core/rtnetlink.c:6936) [ 11.052424][ T244] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3939) [ 11.052428][ T244] rtnetlink_rcv_msg (net/core/rtnetlink.c:6938) [ 11.052432][ T244] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6841) [ 11.052435][ T244] ? 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) [ 11.052438][ T244] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) [ 11.052443][ T244] ? __lock_acquire (kernel/locking/lockdep.c:5228) [ 11.052447][ T244] netlink_rcv_skb (net/netlink/af_netlink.c:2544) [ 11.052452][ T244] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6841) [ 11.052456][ T244] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2521) [ 11.052463][ T244] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) [ 11.052467][ T244] ? 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) [ 11.052471][ T244] netlink_unicast (net/netlink/af_netlink.c:1323 net/netlink/af_netlink.c:1349) [ 11.052475][ T244] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1334) [ 11.052479][ T244] ? find_held_lock (kernel/locking/lockdep.c:5341) [ 11.052483][ T244] netlink_sendmsg (net/netlink/af_netlink.c:1893) [ 11.052488][ T244] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1812) [ 11.052494][ T244] ____sys_sendmsg (net/socket.c:718 net/socket.c:733 net/socket.c:2573) [ 11.052498][ T244] ? __pfx_____sys_sendmsg (net/socket.c:2519) [ 11.052501][ T244] ? __pfx_copy_msghdr_from_user (net/socket.c:2499) [ 11.052507][ T244] ___sys_sendmsg (net/socket.c:2629) [ 11.052511][ T244] ? __pfx____sys_sendmsg (net/socket.c:2616) [ 11.052514][ T244] ? ___sys_recvmsg (net/socket.c:2825) [ 11.052517][ T244] ? __pfx____sys_recvmsg (net/socket.c:2825) [ 11.052520][ T244] ? __pfx_poll_select_finish (fs/select.c:298) [ 11.052524][ T244] ? _copy_from_user (./arch/x86/include/asm/smap.h:29 ./arch/x86/include/asm/uaccess_64.h:134 ./arch/x86/include/asm/uaccess_64.h:141 ./include/linux/uaccess.h:178 lib/usercopy.c:18) [ 11.052529][ T244] ? __pfx_ep_poll (fs/eventpoll.c:2002) [ 11.052536][ T244] ? do_pselect.constprop.0 (fs/select.c:760) [ 11.052541][ T244] __sys_sendmsg (net/socket.c:2659) [ 11.052544][ T244] ? __pfx___sys_sendmsg (net/socket.c:2644) [ 11.052549][ T244] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) [ 11.052555][ T244] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 11.052558][ T244] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 11.052562][ T244] RIP: 0033:0x7f80903719a7 [ 11.052566][ T244] 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) [ 11.052569][ T244] RSP: 002b:00007ffecd86a2b8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 11.052572][ T244] RAX: ffffffffffffffda RBX: 0000000001a4c730 RCX: 00007f80903719a7 [ 11.052574][ T244] RDX: 0000000000000000 RSI: 00007ffecd86a2f0 RDI: 0000000000000005 [ 11.052576][ T244] RBP: 0000000001a4c640 R08: 000000000000000a R09: 0000000000000077 [ 11.052578][ T244] R10: 0000000000000063 R11: 0000000000000246 R12: 0000000001a576d0 Finger prints: print_circular_bug:check_noncircular:check_prev_add:validate_chain:__lock_acquire