[ 10.172664][ T262] ip (262) used greatest stack depth: 24096 bytes left [ 54.243736][ T1011] u32 classifier [ 54.243930][ T1011] input device check on [ 54.244118][ T1011] Actions configured [ 55.309735][ T1030] gre: GRE over IPv4 demultiplexor driver [ 55.321431][ T1030] ip_gre: GRE over IPv4 tunneling driver [ 58.077749][ T1092] ip6_gre: GRE over IPv6 tunneling driver [ 58.292869][ T260] ip6_tunnel: ip6gretap00 xmit: Local address not yet configured! [ 61.194817][ T58] ip6_tunnel: ip6erspan00 xmit: Local address not yet configured! [ 61.575595][ T58] ip6_tunnel: ip6erspan00 xmit: Local address not yet configured! [ 62.134748][ T1171] test-br0: port 1(test-dummy0) entered blocking state [ 62.135121][ T1171] test-br0: port 1(test-dummy0) entered disabled state [ 62.135858][ T1171] test-dummy0: entered allmulticast mode [ 62.137122][ T1171] test-dummy0: entered promiscuous mode [ 62.144293][ T1171] ip (1171) used greatest stack depth: 24080 bytes left [ 62.229001][ T1175] test-br0: port 1(test-dummy0) entered blocking state [ 62.229381][ T1175] test-br0: port 1(test-dummy0) entered forwarding state [ 62.333919][ T1177] ip (1177) used greatest stack depth: 23688 bytes left [ 63.718494][ T1211] test-dummy0: left allmulticast mode [ 63.718730][ T1211] test-dummy0: left promiscuous mode [ 63.719056][ T1211] test-br0: port 1(test-dummy0) entered disabled state [ 137.647152][ T3357] ip (3357) used greatest stack depth: 23528 bytes left [ 140.439239][ T3417] [ 140.439432][ T3417] ============================================ [ 140.439616][ T3417] WARNING: possible recursive locking detected [ 140.439800][ T3417] 6.13.0-rc5-virtme #1 Not tainted [ 140.439942][ T3417] -------------------------------------------- [ 140.440130][ T3417] ip/3417 is trying to acquire lock: [ 140.440274][ T3417] ffffffff9fff6a70 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 140.440581][ T3417] [ 140.440581][ T3417] but task is already holding lock: [ 140.440795][ T3417] ffffffff9fff6a70 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 140.441111][ T3417] [ 140.441111][ T3417] other info that might help us debug this: [ 140.441320][ T3417] Possible unsafe locking scenario: [ 140.441320][ T3417] [ 140.441526][ T3417] CPU0 [ 140.441639][ T3417] ---- [ 140.441745][ T3417] lock((netdev_chain).rwsem); [ 140.441895][ T3417] lock((netdev_chain).rwsem); [ 140.442038][ T3417] [ 140.442038][ T3417] *** DEADLOCK *** [ 140.442038][ T3417] [ 140.442254][ T3417] May be due to missing lock nesting notation [ 140.442254][ T3417] [ 140.442469][ T3417] 2 locks held by ip/3417: [ 140.442612][ T3417] #0: ffffffffa0007e88 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_dellink+0x228/0xa40 [ 140.442875][ T3417] #1: ffffffff9fff6a70 ((netdev_chain).rwsem){++++}-{4:4}, at: blocking_notifier_call_chain+0x50/0x90 [ 140.443174][ T3417] [ 140.443174][ T3417] stack backtrace: [ 140.443349][ T3417] CPU: 2 UID: 0 PID: 3417 Comm: ip Not tainted 6.13.0-rc5-virtme #1 [ 140.443566][ T3417] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 140.443743][ T3417] Call Trace: [ 140.443851][ T3417] [ 140.443926][ T3417] dump_stack_lvl+0x82/0xd0 [ 140.444075][ T3417] print_deadlock_bug+0x40a/0x650 [ 140.444234][ T3417] validate_chain+0x5bf/0xae0 [ 140.444378][ T3417] ? __pfx_validate_chain+0x10/0x10 [ 140.444524][ T3417] ? hlock_class+0x4e/0x130 [ 140.444665][ T3417] ? mark_lock+0x38/0x3e0 [ 140.444775][ T3417] __lock_acquire+0xb9a/0x1680 [ 140.444918][ T3417] ? arch_stack_walk+0x31/0xf0 [ 140.445064][ T3417] lock_acquire.part.0+0xeb/0x330 [ 140.445206][ T3417] ? blocking_notifier_call_chain+0x50/0x90 [ 140.445391][ T3417] ? find_stack+0xbc/0x140 [ 140.445535][ T3417] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 140.445681][ T3417] ? trace_lock_acquire+0x14c/0x1f0 [ 140.445823][ T3417] ? lock_acquire+0x32/0xc0 [ 140.445966][ T3417] ? blocking_notifier_call_chain+0x50/0x90 [ 140.446144][ T3417] down_read+0x9f/0x340 [ 140.446255][ T3417] ? blocking_notifier_call_chain+0x50/0x90 [ 140.446439][ T3417] ? __pfx_down_read+0x10/0x10 [ 140.446582][ T3417] ? netlink_sendmsg+0x723/0xbe0 [ 140.446742][ T3417] ? ____sys_sendmsg+0x7ac/0xa10 [ 140.446895][ T3417] ? ___sys_sendmsg+0xee/0x170 [ 140.447046][ T3417] ? __sys_sendmsg+0x109/0x1a0 [ 140.447196][ T3417] ? do_syscall_64+0xc1/0x1d0 [ 140.447347][ T3417] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 140.447533][ T3417] blocking_notifier_call_chain+0x50/0x90 [ 140.447699][ T3417] __netdev_upper_dev_unlink+0xd9/0x220 [ 140.447849][ T3417] ? __pfx___lock_release+0x10/0x10 [ 140.448001][ T3417] ? __pfx___netdev_upper_dev_unlink+0x10/0x10 [ 140.448190][ T3417] ? hlock_class+0x4e/0x130 [ 140.448338][ T3417] ? mark_lock+0x38/0x3e0 [ 140.448453][ T3417] ? hlock_class+0x4e/0x130 [ 140.448600][ T3417] netdev_upper_dev_unlink+0x71/0xa0 [ 140.448756][ T3417] ? __pfx_netdev_upper_dev_unlink+0x10/0x10 [ 140.448951][ T3417] unregister_vlan_dev+0x1c9/0x3b0 [ 140.449101][ T3417] vlan_device_event+0x1697/0x2130 [ 140.449246][ T3417] ? __pfx_vlan_device_event+0x10/0x10 [ 140.449389][ T3417] ? __pfx_br_device_event+0x10/0x10 [ 140.449539][ T3417] ? packet_notifier+0x3b0/0x810 [ 140.449704][ T3417] notifier_call_chain+0xcd/0x150 [ 140.449852][ T3417] blocking_notifier_call_chain+0x66/0x90 [ 140.450003][ T3417] unregister_netdevice_many_notify+0xa83/0x1580 [ 140.450189][ T3417] ? __pfx_unregister_netdevice_many_notify+0x10/0x10 [ 140.450375][ T3417] ? vxlan_dellink+0x1ef/0x2f0 [vxlan] [ 140.450543][ T3417] rtnl_dellink+0x348/0xa40 [ 140.450696][ T3417] ? __pfx_rtnl_dellink+0x10/0x10 [ 140.450870][ T3417] ? find_held_lock+0x2c/0x110 [ 140.451018][ T3417] ? __lock_release+0x103/0x460 [ 140.451176][ T3417] ? rtnetlink_rcv_msg+0x6ef/0xc10 [ 140.451325][ T3417] ? __pfx___lock_release+0x10/0x10 [ 140.451475][ T3417] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 140.451626][ T3417] ? rtnetlink_rcv_msg+0x6ef/0xc10 [ 140.451773][ T3417] ? __pfx_rtnl_dellink+0x10/0x10 [ 140.451930][ T3417] rtnetlink_rcv_msg+0x712/0xc10 [ 140.452079][ T3417] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 140.452228][ T3417] ? hlock_class+0x4e/0x130 [ 140.452376][ T3417] ? mark_lock+0x38/0x3e0 [ 140.452491][ T3417] ? __lock_acquire+0xb9a/0x1680 [ 140.452636][ T3417] netlink_rcv_skb+0x130/0x360 [ 140.452784][ T3417] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 140.452937][ T3417] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 140.453084][ T3417] ? netlink_deliver_tap+0x13e/0x340 [ 140.453230][ T3417] ? netlink_deliver_tap+0xc3/0x340 [ 140.453387][ T3417] netlink_unicast+0x44b/0x710 [ 140.453537][ T3417] ? __pfx_netlink_unicast+0x10/0x10 [ 140.453681][ T3417] ? find_held_lock+0x2c/0x110 [ 140.453838][ T3417] netlink_sendmsg+0x723/0xbe0 [ 140.453998][ T3417] ? __pfx_netlink_sendmsg+0x10/0x10 [ 140.454151][ T3417] ____sys_sendmsg+0x7ac/0xa10 [ 140.454305][ T3417] ? __pfx_____sys_sendmsg+0x10/0x10 [ 140.454450][ T3417] ? __pfx_copy_msghdr_from_user+0x10/0x10 [ 140.454640][ T3417] ___sys_sendmsg+0xee/0x170 [ 140.454786][ T3417] ? __pfx____sys_sendmsg+0x10/0x10 [ 140.454933][ T3417] ? kasan_save_stack+0x34/0x50 [ 140.455086][ T3417] ? kasan_save_stack+0x24/0x50 [ 140.455243][ T3417] ? __kasan_record_aux_stack+0x8e/0xa0 [ 140.455396][ T3417] ? __call_rcu_common.constprop.0+0xa1/0x4b0 [ 140.455594][ T3417] ? __x64_sys_close+0x7c/0xd0 [ 140.455745][ T3417] ? do_syscall_64+0xc1/0x1d0 [ 140.455896][ T3417] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 140.456082][ T3417] ? __lock_acquire+0xb9a/0x1680 [ 140.456230][ T3417] ? find_held_lock+0x2c/0x110 [ 140.456390][ T3417] ? __lock_release+0x103/0x460 [ 140.456534][ T3417] ? __virt_addr_valid+0x22b/0x430 [ 140.456680][ T3417] ? __pfx___lock_release+0x10/0x10 [ 140.456825][ T3417] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 140.456980][ T3417] __sys_sendmsg+0x109/0x1a0 [ 140.457125][ T3417] ? __pfx___sys_sendmsg+0x10/0x10 [ 140.457270][ T3417] ? __pfx_slab_free_after_rcu_debug+0x10/0x10 [ 140.457458][ T3417] do_syscall_64+0xc1/0x1d0 [ 140.457608][ T3417] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 140.457802][ T3417] RIP: 0033:0x7f04a2b689a7 [ 140.457961][ T3417] 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 [ 140.458485][ T3417] RSP: 002b:00007ffdec097388 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 140.458713][ T3417] RAX: ffffffffffffffda RBX: 00007ffdec097ac0 RCX: 00007f04a2b689a7 [ 140.458935][ T3417] RDX: 0000000000000000 RSI: 00007ffdec0973f0 RDI: 0000000000000005 [ 140.459174][ T3417] RBP: 0000000000000001 R08: 0000000000000003 R09: 0000000000000078 [ 140.459402][ T3417] R10: 00007f04a2a264a8 R11: 0000000000000246 R12: 0000000000000001 [ 140.459624][ T3417] R13: 00000000677911d0 R14: 0000000000498600 R15: 0000000000000000 [ 140.459856][ T3417] [ 140.482672][ T3417] ip (3417) used greatest stack depth: 23480 bytes left [ 141.180533][ T3438] MACsec IEEE 802.1AE [ 141.866310][ T3459] Initializing XFRM netlink socket [ 143.755101][ T3350] netdevsim netdevsim0 eni0np1: renamed from eth0 [ 146.565598][ T3579] test-br0: port 1(vxlan10) entered blocking state [ 146.565799][ T3579] test-br0: port 1(vxlan10) entered disabled state [ 146.565996][ T3579] vxlan10: entered allmulticast mode [ 146.566927][ T3579] vxlan10: entered promiscuous mode [ 146.905097][ T65] vxlan10: left allmulticast mode [ 146.905266][ T65] vxlan10: left promiscuous mode [ 146.905533][ T65] test-br0: port 1(vxlan10) entered disabled state [ 147.494412][ T3609] test-br0: port 1(dummy1) entered blocking state [ 147.494612][ T3609] test-br0: port 1(dummy1) entered disabled state [ 147.494796][ T3609] dummy1: entered allmulticast mode [ 147.495674][ T3609] dummy1: entered promiscuous mode [ 147.851785][ T65] dummy1: left allmulticast mode [ 147.851948][ T65] dummy1: left promiscuous mode [ 147.852186][ T65] test-br0: port 1(dummy1) entered disabled state [ 148.815850][ T3350] netdevsim netdevsim10 eni10np1: renamed from eth0 [ 148.883007][ T3358] netdevsim netdevsim20 eni20np1: renamed from eth1 [ 149.333416][ T3668] test-bond0: (slave eni10np1): Enslaving as a backup interface with an up link [ 149.394868][ T3670] test-bond0: (slave eni20np1): Enslaving as a backup interface with an up link [ 149.546118][ T3683] test-br0: port 1(test-bond0) entered blocking state [ 149.546316][ T3683] test-br0: port 1(test-bond0) entered disabled state [ 149.546691][ T3683] test-bond0: entered allmulticast mode [ 149.546832][ T3683] netdevsim netdevsim10 eni10np1: entered allmulticast mode [ 149.547049][ T3683] netdevsim netdevsim20 eni20np1: entered allmulticast mode [ 149.548218][ T3683] test-bond0: entered promiscuous mode [ 149.548368][ T3683] netdevsim netdevsim10 eni10np1: entered promiscuous mode [ 149.548688][ T3683] netdevsim netdevsim20 eni20np1: entered promiscuous mode [ 149.608278][ T3685] test-bond0: left allmulticast mode [ 149.608938][ T3685] netdevsim netdevsim10 eni10np1: left allmulticast mode [ 149.609121][ T3685] netdevsim netdevsim20 eni20np1: left allmulticast mode [ 149.609297][ T3685] test-bond0: left promiscuous mode [ 149.609439][ T3685] netdevsim netdevsim10 eni10np1: left promiscuous mode [ 149.609727][ T3685] netdevsim netdevsim20 eni20np1: left promiscuous mode [ 149.610112][ T3685] test-br0: port 1(test-bond0) entered disabled state [ 149.693319][ T3686] test-bond0 (unregistering): (slave eni10np1): Releasing backup interface [ 149.715487][ T3686] test-bond0 (unregistering): (slave eni20np1): Releasing backup interface [ 149.739120][ T3686] test-bond0 (unregistering): Released all slaves [ 152.263000][ T3765] bond123: (slave test-dummy0): Enslaving as an active interface with an up link [ 152.324187][ T65] bond123 (unregistering): (slave test-dummy0): Releasing backup interface [ 152.343651][ T65] bond123 (unregistering): Released all slaves