[ 156.639011][ T1432] u32 classifier [ 156.639154][ T1432] input device check on [ 156.639314][ T1432] Actions configured [ 158.712258][ T1451] gre: GRE over IPv4 demultiplexor driver [ 158.728251][ T1451] ip_gre: GRE over IPv4 tunneling driver [ 160.646292][ T1481] ip (1481) used greatest stack depth: 23632 bytes left [ 163.917747][ T1513] ip6_gre: GRE over IPv6 tunneling driver [ 164.254397][ T51] ip6_tunnel: ip6gretap00 xmit: Local address not yet configured! [ 169.778506][ T25] ip6_tunnel: ip6erspan00 xmit: Local address not yet configured! [ 170.484380][ T61] ip6_tunnel: ip6erspan00 xmit: Local address not yet configured! [ 171.564442][ T1593] test-br0: port 1(test-dummy0) entered blocking state [ 171.564770][ T1593] test-br0: port 1(test-dummy0) entered disabled state [ 171.565235][ T1593] test-dummy0: entered allmulticast mode [ 171.566386][ T1593] test-dummy0: entered promiscuous mode [ 171.708584][ T1597] test-br0: port 1(test-dummy0) entered blocking state [ 171.708907][ T1597] test-br0: port 1(test-dummy0) entered forwarding state [ 174.651667][ T1633] test-dummy0: left allmulticast mode [ 174.651857][ T1633] test-dummy0: left promiscuous mode [ 174.652135][ T1633] test-br0: port 1(test-dummy0) entered disabled state [ 325.353452][ T3860] MACsec IEEE 802.1AE [ 327.415566][ T3863] netdevsim netdevsim0 eni0np1: renamed from eth0 [ 330.645990][ T3923] [ 330.646082][ T3923] ====================================================== [ 330.646245][ T3923] WARNING: possible circular locking dependency detected [ 330.646407][ T3923] 6.12.0-rc5-virtme #1 Not tainted [ 330.646533][ T3923] ------------------------------------------------------ [ 330.646687][ T3923] rmmod/3923 is trying to acquire lock: [ 330.646815][ T3923] ffffffffc03887c0 (&ops->srcu){.+.+}-{0:0}, at: __synchronize_srcu+0x21/0x2b0 [ 330.647050][ T3923] [ 330.647050][ T3923] but task is already holding lock: [ 330.647237][ T3923] ffffffff911f7f88 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_link_unregister+0x10c/0x1c0 [ 330.647475][ T3923] [ 330.647475][ T3923] which lock already depends on the new lock. [ 330.647475][ T3923] [ 330.647716][ T3923] [ 330.647716][ T3923] the existing dependency chain (in reverse order) is: [ 330.647930][ T3923] [ 330.647930][ T3923] -> #1 (rtnl_mutex){+.+.}-{3:3}: [ 330.648117][ T3923] __lock_acquire+0xb3f/0x1580 [ 330.648246][ T3923] lock_acquire.part.0+0xeb/0x330 [ 330.648371][ T3923] __mutex_lock+0x149/0xac0 [ 330.648496][ T3923] rtnl_newlink+0x64f/0xa20 [ 330.648622][ T3923] rtnetlink_rcv_msg+0x712/0xc10 [ 330.648746][ T3923] netlink_rcv_skb+0x130/0x360 [ 330.648870][ T3923] netlink_unicast+0x44b/0x710 [ 330.648992][ T3923] netlink_sendmsg+0x723/0xbe0 [ 330.649141][ T3923] ____sys_sendmsg+0x7ac/0xa10 [ 330.649268][ T3923] ___sys_sendmsg+0xee/0x170 [ 330.649400][ T3923] __sys_sendmsg+0xcd/0x170 [ 330.649526][ T3923] do_syscall_64+0xc1/0x1d0 [ 330.649653][ T3923] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 330.649811][ T3923] [ 330.649811][ T3923] -> #0 (&ops->srcu){.+.+}-{0:0}: [ 330.649999][ T3923] check_prev_add+0x182/0xce0 [ 330.650125][ T3923] validate_chain+0x71d/0x9b0 [ 330.650250][ T3923] __lock_acquire+0xb3f/0x1580 [ 330.650379][ T3923] lock_sync+0xd7/0x180 [ 330.650504][ T3923] __synchronize_srcu+0x9e/0x2b0 [ 330.650629][ T3923] __rtnl_link_unregister+0x14a/0x380 [ 330.650784][ T3923] rtnl_link_unregister+0x14c/0x1c0 [ 330.650908][ T3923] nsim_module_exit+0x10/0x1a [netdevsim] [ 330.651077][ T3923] __do_sys_delete_module+0x2bd/0x470 [ 330.651232][ T3923] do_syscall_64+0xc1/0x1d0 [ 330.651357][ T3923] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 330.651524][ T3923] [ 330.651524][ T3923] other info that might help us debug this: [ 330.651524][ T3923] [ 330.651757][ T3923] Possible unsafe locking scenario: [ 330.651757][ T3923] [ 330.651935][ T3923] CPU0 CPU1 [ 330.652057][ T3923] ---- ---- [ 330.652177][ T3923] lock(rtnl_mutex); [ 330.652271][ T3923] lock(&ops->srcu); [ 330.652424][ T3923] lock(rtnl_mutex); [ 330.652576][ T3923] sync(&ops->srcu); [ 330.652674][ T3923] [ 330.652674][ T3923] *** DEADLOCK *** [ 330.652674][ T3923] [ 330.652849][ T3923] 2 locks held by rmmod/3923: [ 330.652969][ T3923] #0: ffffffff911dcb10 (pernet_ops_rwsem){++++}-{3:3}, at: rtnl_link_unregister+0xa6/0x1c0 [ 330.653216][ T3923] #1: ffffffff911f7f88 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_link_unregister+0x10c/0x1c0 [ 330.653432][ T3923] [ 330.653432][ T3923] stack backtrace: [ 330.653581][ T3923] CPU: 3 UID: 0 PID: 3923 Comm: rmmod Not tainted 6.12.0-rc5-virtme #1 [ 330.653764][ T3923] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 330.654032][ T3923] Call Trace: [ 330.654130][ T3923] [ 330.654198][ T3923] dump_stack_lvl+0x82/0xd0 [ 330.654346][ T3923] print_circular_bug+0x2e2/0x4b0 [ 330.654471][ T3923] check_noncircular+0x2f9/0x3e0 [ 330.654599][ T3923] ? __pfx_check_noncircular+0x10/0x10 [ 330.654725][ T3923] ? __kernel_text_address+0x12/0x40 [ 330.654852][ T3923] ? unwind_get_return_address+0x5e/0xa0 [ 330.654978][ T3923] ? __pfx_stack_trace_consume_entry+0x10/0x10 [ 330.655135][ T3923] ? arch_stack_walk+0xa2/0xf0 [ 330.655269][ T3923] ? alloc_chain_hlocks+0x4e0/0x720 [ 330.655395][ T3923] check_prev_add+0x182/0xce0 [ 330.655529][ T3923] ? __pfx_stack_trace_save+0x10/0x10 [ 330.655652][ T3923] validate_chain+0x71d/0x9b0 [ 330.655777][ T3923] ? __pfx_validate_chain+0x10/0x10 [ 330.655899][ T3923] ? mark_lock+0x335/0x3e0 [ 330.656020][ T3923] ? __pfx_validate_chain+0x10/0x10 [ 330.656143][ T3923] __lock_acquire+0xb3f/0x1580 [ 330.656272][ T3923] lock_sync+0xd7/0x180 [ 330.656365][ T3923] ? __synchronize_srcu+0x21/0x2b0 [ 330.656487][ T3923] __synchronize_srcu+0x9e/0x2b0 [ 330.656609][ T3923] ? __pfx___synchronize_srcu+0x10/0x10 [ 330.656732][ T3923] ? hlock_class+0x4e/0x130 [ 330.656857][ T3923] ? mark_lock+0x38/0x3e0 [ 330.656951][ T3923] ? kvm_clock_get_cycles+0x18/0x30 [ 330.657075][ T3923] ? ktime_get_mono_fast_ns+0x84/0x360 [ 330.657200][ T3923] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 330.657357][ T3923] __rtnl_link_unregister+0x14a/0x380 [ 330.657479][ T3923] ? mark_lock+0x38/0x3e0 [ 330.657571][ T3923] ? __pfx___rtnl_link_unregister+0x10/0x10 [ 330.657723][ T3923] ? mark_held_locks+0x9e/0xe0 [ 330.657848][ T3923] rtnl_link_unregister+0x14c/0x1c0 [ 330.657969][ T3923] ? __pfx_rtnl_link_unregister+0x10/0x10 [ 330.658091][ T3923] ? __pfx_woken_wake_function+0x10/0x10 [ 330.658235][ T3923] nsim_module_exit+0x10/0x1a [netdevsim] [ 330.658374][ T3923] __do_sys_delete_module+0x2bd/0x470 [ 330.658499][ T3923] ? __pfx___do_sys_delete_module+0x10/0x10 [ 330.658655][ T3923] ? __pfx_slab_free_after_rcu_debug+0x10/0x10 [ 330.658811][ T3923] ? __pfx_slab_free_after_rcu_debug+0x10/0x10 [ 330.658967][ T3923] ? trace_rcu_segcb_stats+0x37/0x1e0 [ 330.659100][ T3923] ? __pfx_slab_free_after_rcu_debug+0x10/0x10 [ 330.659259][ T3923] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 330.659418][ T3923] do_syscall_64+0xc1/0x1d0 [ 330.659546][ T3923] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 330.659701][ T3923] RIP: 0033:0x7f9360d085ab [ 330.659831][ T3923] Code: 73 01 c3 48 8b 0d 55 98 1b 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 b0 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 25 98 1b 00 f7 d8 64 89 01 48 [ 330.660283][ T3923] RSP: 002b:00007ffe47c3d9f8 EFLAGS: 00000206 ORIG_RAX: 00000000000000b0 [ 330.660470][ T3923] RAX: ffffffffffffffda RBX: 00005555afb15780 RCX: 00007f9360d085ab [ 330.660654][ T3923] RDX: 000000000000000a RSI: 0000000000000800 RDI: 00005555afb157e8 [ 330.660836][ T3923] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 330.661019][ T3923] R10: 00007f9360e67ac0 R11: 0000000000000206 R12: 00007ffe47c3dc50 [ 330.661204][ T3923] R13: 00007ffe47c3ea11 R14: 00005555afb142a0 R15: 00005555afb15780 [ 330.661390][ T3923] [ 331.187563][ T3927] Initializing XFRM netlink socket [ 334.773887][ T3863] (udev-worker) (3863) used greatest stack depth: 23552 bytes left [ 334.990653][ T4005] netdevsim netdevsim0 eni0np1: renamed from eth0 [ 340.087985][ T4052] test-br0: port 1(vxlan10) entered blocking state [ 340.088191][ T4052] test-br0: port 1(vxlan10) entered disabled state [ 340.088372][ T4052] vxlan10: entered allmulticast mode [ 340.089300][ T4052] vxlan10: entered promiscuous mode [ 340.897915][ T11] vxlan10: left allmulticast mode [ 340.898077][ T11] vxlan10: left promiscuous mode [ 340.898328][ T11] test-br0: port 1(vxlan10) entered disabled state [ 342.274987][ T4082] test-br0: port 1(dummy1) entered blocking state [ 342.275256][ T4082] test-br0: port 1(dummy1) entered disabled state [ 342.275428][ T4082] dummy1: entered allmulticast mode [ 342.276293][ T4082] dummy1: entered promiscuous mode [ 343.164914][ T11] dummy1: left allmulticast mode [ 343.165060][ T11] dummy1: left promiscuous mode [ 343.165309][ T11] test-br0: port 1(dummy1) entered disabled state [ 345.268525][ T4130] netdevsim netdevsim20 eni20np1: renamed from eth1 [ 345.270276][ T4131] netdevsim netdevsim10 eni10np1: renamed from eth0 [ 346.222985][ T4144] test-bond0: (slave eni10np1): Enslaving as a backup interface with an up link [ 346.355154][ T4146] test-bond0: (slave eni20np1): Enslaving as a backup interface with an up link [ 346.657585][ T4160] test-br0: port 1(test-bond0) entered blocking state [ 346.657766][ T4160] test-br0: port 1(test-bond0) entered disabled state [ 346.657955][ T4160] test-bond0: entered allmulticast mode [ 346.658083][ T4160] netdevsim netdevsim10 eni10np1: entered allmulticast mode [ 346.658312][ T4160] netdevsim netdevsim20 eni20np1: entered allmulticast mode [ 346.659515][ T4160] test-bond0: entered promiscuous mode [ 346.659654][ T4160] netdevsim netdevsim10 eni10np1: entered promiscuous mode [ 346.659984][ T4160] netdevsim netdevsim20 eni20np1: entered promiscuous mode [ 346.806443][ T4161] test-bond0: left allmulticast mode [ 346.806592][ T4161] netdevsim netdevsim10 eni10np1: left allmulticast mode [ 346.806759][ T4161] netdevsim netdevsim20 eni20np1: left allmulticast mode [ 346.806916][ T4161] test-bond0: left promiscuous mode [ 346.807039][ T4161] netdevsim netdevsim10 eni10np1: left promiscuous mode [ 346.808121][ T4161] netdevsim netdevsim20 eni20np1: left promiscuous mode [ 346.808786][ T4161] test-br0: port 1(test-bond0) entered disabled state [ 346.981086][ T4162] test-bond0 (unregistering): (slave eni10np1): Releasing backup interface [ 346.998627][ T4162] test-bond0 (unregistering): (slave eni20np1): Releasing backup interface [ 347.021999][ T4162] test-bond0 (unregistering): Released all slaves [ 352.734069][ T4241] bond123: (slave test-dummy0): Enslaving as an active interface with an up link [ 352.892515][ T11] bond123 (unregistering): (slave test-dummy0): Releasing backup interface [ 352.912987][ T11] bond123 (unregistering): Released all slaves