[ 29.092276][ T277] fab-br0: port 1(fbond) entered blocking state
[ 29.092910][ T277] fab-br0: port 1(fbond) entered disabled state
[ 29.093251][ T277] fbond: entered allmulticast mode
[ 29.094910][ T277] fbond: entered promiscuous mode
[ 29.095806][ T277]
[ 29.095932][ T277] =============================
[ 29.096117][ T277] WARNING: suspicious RCU usage
[ 29.096293][ T277] 6.11.0-rc2-virtme #1 Not tainted
[ 29.097426][ T277] -----------------------------
[ 29.097716][ T277] net/bridge/br_private.h:930 suspicious rcu_dereference_check() usage!
[ 29.098067][ T277]
[ 29.098067][ T277] other info that might help us debug this:
[ 29.098067][ T277]
[ 29.098506][ T277]
[ 29.098506][ T277] rcu_scheduler_active = 2, debug_locks = 1
[ 29.098837][ T277] 1 lock held by ip/277:
[ 29.098997][ T277] #0: ffffffffa4bd2948 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x2af/0xc10
[ 29.099352][ T277]
[ 29.099352][ T277] stack backtrace:
[ 29.099626][ T277] CPU: 3 UID: 0 PID: 277 Comm: ip Not tainted 6.11.0-rc2-virtme #1
[ 29.099891][ T277] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 29.100302][ T277] Call Trace:
[ 29.100466][ T277] <TASK>
[ 29.100559][ T277] dump_stack_lvl+0xb0/0xd0
[ 29.100748][ T277] lockdep_rcu_suspicious+0x1e5/0x270
[ 29.100941][ T277] ? __pfx_br_handle_frame+0x10/0x10
[ 29.101122][ T277] br_get_link_af_size_filtered+0x18e/0x220
[ 29.101347][ T277] br_info_notify+0xe6/0x280
[ 29.101554][ T277] ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 29.101775][ T277] br_add_if+0xa63/0x1520
[ 29.101927][ T277] ? rtnl_is_locked+0x15/0x20
[ 29.102104][ T277] ? netdev_master_upper_dev_get+0x13/0x120
[ 29.102346][ T277] do_setlink+0x84b/0x21e0
[ 29.102543][ T277] ? is_bpf_text_address+0x67/0x120
[ 29.102727][ T277] ? __pfx_do_setlink+0x10/0x10
[ 29.102907][ T277] ? is_bpf_text_address+0x71/0x120
[ 29.103109][ T277] ? kernel_text_address+0xce/0xe0
[ 29.103287][ T277] ? __kernel_text_address+0x12/0x40
[ 29.103486][ T277] ? unwind_get_return_address+0x5e/0xa0
[ 29.103671][ T277] ? __pfx_stack_trace_consume_entry+0x10/0x10
[ 29.103889][ T277] ? arch_stack_walk+0xa2/0xf0
[ 29.104109][ T277] ? stack_trace_save+0x94/0xd0
[ 29.104291][ T277] ? __pfx_stack_trace_save+0x10/0x10
[ 29.104478][ T277] ? __pfx_validate_nla+0x10/0x10
[ 29.104673][ T277] ? mark_lock+0x38/0x3e0
[ 29.104816][ T277] ? kasan_save_stack+0x34/0x50
[ 29.105010][ T277] ? __nla_validate_parse+0x1bc/0x3d0
[ 29.105216][ T277] __rtnl_newlink+0xaa7/0xd80
[ 29.105407][ T277] ? hlock_class+0x4e/0x130
[ 29.105599][ T277] ? __pfx___rtnl_newlink+0x10/0x10
[ 29.105804][ T277] ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 29.106028][ T277] ? __create_object+0x5e/0xb0
[ 29.106212][ T277] ? trace_kmalloc+0x2d/0xe0
[ 29.106425][ T277] rtnl_newlink+0x63/0xa0
[ 29.106561][ T277] rtnetlink_rcv_msg+0x2fb/0xc10
[ 29.106777][ T277] ? __pfx_rtnetlink_rcv_msg+0x10/0x10
[ 29.106949][ T277] ? hlock_class+0x4e/0x130
[ 29.107150][ T277] ? mark_lock+0x38/0x3e0
[ 29.107320][ T277] ? __lock_acquire+0xb35/0x1560
[ 29.107511][ T277] netlink_rcv_skb+0x130/0x360
[ 29.107698][ T277] ? __pfx_rtnetlink_rcv_msg+0x10/0x10
[ 29.107874][ T277] ? __pfx_netlink_rcv_skb+0x10/0x10
[ 29.108080][ T277] ? netlink_deliver_tap+0x13e/0x340
[ 29.108261][ T277] ? netlink_deliver_tap+0xc3/0x340
[ 29.108473][ T277] netlink_unicast+0x44b/0x710
[ 29.108652][ T277] ? __pfx_netlink_unicast+0x10/0x10
[ 29.108841][ T277] ? find_held_lock+0x2c/0x110
[ 29.109014][ T277] netlink_sendmsg+0x723/0xbe0
[ 29.109214][ T277] ? __pfx_netlink_sendmsg+0x10/0x10
[ 29.109403][ T277] ? __might_fault+0xc3/0x170
[ 29.109573][ T277] ? __import_iovec+0x35d/0x5d0
[ 29.109780][ T277] ____sys_sendmsg+0x7b2/0xa10
[ 29.109963][ T277] ? __pfx_____sys_sendmsg+0x10/0x10
[ 29.110170][ T277] ? __pfx_copy_msghdr_from_user+0x10/0x10
[ 29.110383][ T277] ? __pfx_validate_chain+0x10/0x10
[ 29.110603][ T277] ___sys_sendmsg+0xee/0x170
[ 29.110778][ T277] ? __pfx____sys_sendmsg+0x10/0x10
[ 29.110961][ T277] ? find_held_lock+0x2c/0x110
[ 29.111163][ T277] ? __lock_release+0x103/0x460
[ 29.111370][ T277] ? __debug_check_no_obj_freed+0x253/0x520
[ 29.111611][ T277] ? __pfx___lock_release+0x10/0x10
[ 29.111792][ T277] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 29.111964][ T277] ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 29.112180][ T277] ? __fget_light+0x53/0x1e0
[ 29.112351][ T277] __sys_sendmsg+0xcd/0x170
[ 29.112535][ T277] ? __pfx___sys_sendmsg+0x10/0x10
[ 29.112692][ T277] ? __virt_addr_valid+0x230/0x430
[ 29.112877][ T277] do_syscall_64+0xc1/0x1d0
[ 29.113055][ T277] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 29.113412][ T277] RIP: 0033:0x7fbcf6ee07b7
[ 29.113593][ T277] 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
[ 29.114187][ T277] RSP: 002b:00007fff223d89c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[ 29.114545][ T277] RAX: ffffffffffffffda RBX: 00007fff223d90f0 RCX: 00007fbcf6ee07b7
[ 29.114811][ T277] RDX: 0000000000000000 RSI: 00007fff223d8a30 RDI: 0000000000000005
[ 29.115078][ T277] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[ 29.115495][ T277] R10: 0000000001335910 R11: 0000000000000246 R12: 0000000000000003
[ 29.115747][ T277] R13: 0000000066bea43a R14: 0000000000496600 R15: 0000000000000000
[ 29.116012][ T277] </TASK>
[ 29.116154][ T277]
[ 29.116258][ T277] =============================
[ 29.116443][ T277] WARNING: suspicious RCU usage
[ 29.116622][ T277] 6.11.0-rc2-virtme #1 Not tainted
[ 29.116802][ T277] -----------------------------
[ 29.116958][ T277] net/bridge/br_private.h:453 suspicious rcu_dereference_check() usage!
[ 29.117202][ T277]
[ 29.117202][ T277] other info that might help us debug this:
[ 29.117202][ T277]
[ 29.117538][ T277]
[ 29.117538][ T277] rcu_scheduler_active = 2, debug_locks = 1
[ 29.117780][ T277] 1 lock held by ip/277:
[ 29.117992][ T277] #0: ffffffffa4bd2948 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x2af/0xc10
[ 29.118294][ T277]
[ 29.118294][ T277] stack backtrace:
[ 29.118631][ T277] CPU: 3 UID: 0 PID: 277 Comm: ip Not tainted 6.11.0-rc2-virtme #1
[ 29.118870][ T277] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 29.119241][ T277] Call Trace:
[ 29.119541][ T277] <TASK>
[ 29.119634][ T277] dump_stack_lvl+0xb0/0xd0
[ 29.119804][ T277] lockdep_rcu_suspicious+0x1e5/0x270
[ 29.119985][ T277] br_get_link_af_size_filtered+0x1e6/0x220
[ 29.120198][ T277] br_info_notify+0xe6/0x280
[ 29.120387][ T277] ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 29.120596][ T277] br_add_if+0xa63/0x1520
[ 29.120837][ T277] ? rtnl_is_locked+0x15/0x20
[ 29.121002][ T277] ? netdev_master_upper_dev_get+0x13/0x120
[ 29.121227][ T277] do_setlink+0x84b/0x21e0
[ 29.121406][ T277] ? is_bpf_text_address+0x67/0x120
[ 29.121691][ T277] ? __pfx_do_setlink+0x10/0x10
[ 29.121861][ T277] ? is_bpf_text_address+0x71/0x120
[ 29.122032][ T277] ? kernel_text_address+0xce/0xe0
[ 29.122200][ T277] ? __kernel_text_address+0x12/0x40
[ 29.122378][ T277] ? unwind_get_return_address+0x5e/0xa0
[ 29.122545][ T277] ? __pfx_stack_trace_consume_entry+0x10/0x10
[ 29.122765][ T277] ? arch_stack_walk+0xa2/0xf0
[ 29.123114][ T277] ? stack_trace_save+0x94/0xd0
[ 29.123284][ T277] ? __pfx_stack_trace_save+0x10/0x10
[ 29.123486][ T277] ? __pfx_validate_nla+0x10/0x10
[ 29.123656][ T277] ? mark_lock+0x38/0x3e0
[ 29.123785][ T277] ? kasan_save_stack+0x34/0x50
[ 29.124113][ T277] ? __nla_validate_parse+0x1bc/0x3d0
[ 29.124306][ T277] __rtnl_newlink+0xaa7/0xd80
[ 29.124501][ T277] ? hlock_class+0x4e/0x130
[ 29.124663][ T277] ? __pfx___rtnl_newlink+0x10/0x10
[ 29.124933][ T277] ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 29.125146][ T277] ? __create_object+0x5e/0xb0
[ 29.125337][ T277] ? trace_kmalloc+0x2d/0xe0
[ 29.125519][ T277] rtnl_newlink+0x63/0xa0
[ 29.125771][ T277] rtnetlink_rcv_msg+0x2fb/0xc10
[ 29.125935][ T277] ? __pfx_rtnetlink_rcv_msg+0x10/0x10
[ 29.126116][ T277] ? hlock_class+0x4e/0x130
[ 29.126279][ T277] ? mark_lock+0x38/0x3e0
[ 29.126421][ T277] ? __lock_acquire+0xb35/0x1560
[ 29.126600][ T277] netlink_rcv_skb+0x130/0x360
[ 29.126763][ T277] ? __pfx_rtnetlink_rcv_msg+0x10/0x10
[ 29.127063][ T277] ? __pfx_netlink_rcv_skb+0x10/0x10
[ 29.127240][ T277] ? netlink_deliver_tap+0x13e/0x340
[ 29.127428][ T277] ? netlink_deliver_tap+0xc3/0x340
[ 29.127598][ T277] netlink_unicast+0x44b/0x710
[ 29.127774][ T277] ? __pfx_netlink_unicast+0x10/0x10
[ 29.127934][ T277] ? find_held_lock+0x2c/0x110
[ 29.128443][ T277] netlink_sendmsg+0x723/0xbe0
[ 29.128617][ T277] ? __pfx_netlink_sendmsg+0x10/0x10
[ 29.128806][ T277] ? __might_fault+0xc3/0x170
[ 29.128990][ T277] ? __import_iovec+0x35d/0x5d0
[ 29.129324][ T277] ____sys_sendmsg+0x7b2/0xa10
[ 29.129546][ T277] ? __pfx_____sys_sendmsg+0x10/0x10
[ 29.129726][ T277] ? __pfx_copy_msghdr_from_user+0x10/0x10
[ 29.130046][ T277] ? __pfx_validate_chain+0x10/0x10
[ 29.130277][ T277] ___sys_sendmsg+0xee/0x170
[ 29.130625][ T277] ? __pfx____sys_sendmsg+0x10/0x10
[ 29.130840][ T277] ? find_held_lock+0x2c/0x110
[ 29.131034][ T277] ? __lock_release+0x103/0x460
[ 29.131199][ T277] ? __debug_check_no_obj_freed+0x253/0x520
[ 29.131583][ T277] ? __pfx___lock_release+0x10/0x10
[ 29.131764][ T277] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 29.131951][ T277] ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 29.132286][ T277] ? __fget_light+0x53/0x1e0
[ 29.132593][ T277] __sys_sendmsg+0xcd/0x170
[ 29.132770][ T277] ? __pfx___sys_sendmsg+0x10/0x10
[ 29.132935][ T277] ? __virt_addr_valid+0x230/0x430
[ 29.133162][ T277] do_syscall_64+0xc1/0x1d0
[ 29.133545][ T277] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 29.133848][ T277] RIP: 0033:0x7fbcf6ee07b7
[ 29.134123][ T277] 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
[ 29.135215][ T277] RSP: 002b:00007fff223d89c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[ 29.135739][ T277] RAX: ffffffffffffffda RBX: 00007fff223d90f0 RCX: 00007fbcf6ee07b7
[ 29.136204][ T277] RDX: 0000000000000000 RSI: 00007fff223d8a30 RDI: 0000000000000005
[ 29.136518][ T277] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[ 29.136928][ T277] R10: 0000000001335910 R11: 0000000000000246 R12: 0000000000000003
[ 29.137203][ T277] R13: 0000000066bea43a R14: 0000000000496600 R15: 0000000000000000
[ 29.137527][ T277] </TASK>
[ 29.314119][ T280] veth1-bond: entered promiscuous mode
[ 29.314797][ T280] veth1-bond: entered allmulticast mode
[ 29.316113][ T280] fbond: (slave veth1-bond): Enslaving as a backup interface with a down link
[ 29.475525][ T281] veth2-bond: entered promiscuous mode
[ 29.476090][ T281] veth2-bond: entered allmulticast mode
[ 29.476904][ T281] fbond: (slave veth2-bond): Enslaving as a backup interface with a down link
[ 29.705932][ T11] fbond: (slave veth1-bond): link status definitely up, 10000 Mbps full duplex
[ 29.706429][ T11] fbond: Warning: No 802.3ad response from the link partner for any adapters in the bond
[ 29.707005][ T11] fbond: active interface up!
[ 29.913718][ T284] fbond: (slave veth2-bond): link status definitely up, 10000 Mbps full duplex
[ 29.953865][ T285] fab-br0: port 1(fbond) entered blocking state
[ 29.954351][ T285] fab-br0: port 1(fbond) entered forwarding state
[ 32.674349][ T310] fbond: left allmulticast mode
[ 32.674662][ T310] veth1-bond: left allmulticast mode
[ 32.674839][ T310] veth2-bond: left allmulticast mode
[ 32.675020][ T310] fbond: left promiscuous mode
[ 32.675195][ T310] veth1-bond: left promiscuous mode
[ 32.675577][ T310] veth2-bond: left promiscuous mode
[ 32.676085][ T310] fab-br0: port 1(fbond) entered disabled state
[ 32.773252][ T310] ip (310) used greatest stack depth: 23584 bytes left
[ 33.120901][ T311] fbond (unregistering): (slave veth1-bond): Removing an active aggregator
[ 33.122008][ T311] fbond (unregistering): (slave veth1-bond): Releasing backup interface
[ 33.145854][ T311] fbond (unregistering): (slave veth2-bond): Removing an active aggregator
[ 33.146652][ T311] fbond (unregistering): (slave veth2-bond): Releasing backup interface
[ 33.169687][ T311] fbond (unregistering): Released all slaves