[ 55.721055][ C1] BUG: spinlock bad magic on CPU#1, ip/601 [ 55.721280][ C1] lock: noop_qdisc+0x240/0x300, .magic: 00000000, .owner: ip/601, .owner_cpu: 1 [ 55.721547][ C1] CPU: 1 UID: 0 PID: 601 Comm: ip Not tainted 6.10.0-virtme #1 [ 55.721776][ C1] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 55.722121][ C1] Call Trace: [ 55.722236][ C1] [ 55.722311][ C1] dump_stack_lvl+0xb0/0xd0 [ 55.722469][ C1] do_raw_spin_unlock+0x1ac/0x220 [ 55.722625][ C1] _raw_spin_unlock+0x23/0x40 [ 55.722775][ C1] net_tx_action+0x424/0x680 [ 55.722924][ C1] handle_softirqs+0x1f9/0x5c0 [ 55.723077][ C1] ? dev_deactivate_many+0x1e2/0x8d0 [ 55.723230][ C1] do_softirq+0x4d/0xa0 [ 55.723341][ C1] [ 55.723416][ C1] [ 55.723491][ C1] __local_bh_enable_ip+0xf6/0x120 [ 55.723643][ C1] dev_deactivate_many+0x1e7/0x8d0 [ 55.723797][ C1] __dev_close_many+0x12b/0x2d0 [ 55.723950][ C1] ? __pfx___dev_close_many+0x10/0x10 [ 55.724100][ C1] ? hlock_class+0x4e/0x130 [ 55.724255][ C1] dev_close_many+0x202/0x650 [ 55.724406][ C1] ? __pfx_dev_close_many+0x10/0x10 [ 55.724552][ C1] ? find_held_lock+0x2c/0x110 [ 55.724702][ C1] unregister_netdevice_many_notify+0x8e5/0x1570 [ 55.724888][ C1] ? __pfx___lock_release+0x10/0x10 [ 55.725039][ C1] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 55.725187][ C1] ? trace_lock_acquire+0x14d/0x1f0 [ 55.725341][ C1] ? __pfx_unregister_netdevice_many_notify+0x10/0x10 [ 55.725523][ C1] ? sock_def_readable+0x11e/0x300 [ 55.725675][ C1] ? mutex_is_locked+0x17/0x50 [ 55.725823][ C1] ? rtnl_is_locked+0x15/0x20 [ 55.725972][ C1] ? unregister_netdevice_queue+0x70/0x410 [ 55.726153][ C1] ? __pfx_unregister_netdevice_queue+0x10/0x10 [ 55.726343][ C1] ? __pfx_validate_chain+0x10/0x10 [ 55.726491][ C1] ? __pfx_unregister_netdevice_queue+0x10/0x10 [ 55.726679][ C1] rtnl_dellink+0x32c/0xa50 [ 55.726829][ C1] ? hlock_class+0x4e/0x130 [ 55.726974][ C1] ? __pfx_rtnl_dellink+0x10/0x10 [ 55.727133][ C1] ? trace_contention_end+0xeb/0x150 [ 55.727281][ C1] ? __mutex_lock+0x170/0xac0 [ 55.727429][ C1] ? find_held_lock+0x2c/0x110 [ 55.727577][ C1] ? rtnetlink_rcv_msg+0x2af/0xc10 [ 55.727724][ C1] ? __pfx___mutex_lock+0x10/0x10 [ 55.727876][ C1] ? __pfx___lock_release+0x10/0x10 [ 55.728021][ C1] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 55.728169][ C1] ? trace_lock_acquire+0x14d/0x1f0 [ 55.728319][ C1] rtnetlink_rcv_msg+0x2fb/0xc10 [ 55.728468][ C1] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 55.728616][ C1] ? hlock_class+0x4e/0x130 [ 55.728766][ C1] ? mark_lock+0x38/0x3e0 [ 55.728877][ C1] ? __lock_acquire+0xb35/0x1560 [ 55.729029][ C1] netlink_rcv_skb+0x130/0x360 [ 55.729177][ C1] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 55.729352][ C1] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 55.729506][ C1] ? netlink_deliver_tap+0x13e/0x340 [ 55.729657][ C1] ? netlink_deliver_tap+0xc3/0x340 [ 55.729807][ C1] netlink_unicast+0x44b/0x710 [ 55.729960][ C1] ? __pfx_netlink_unicast+0x10/0x10 [ 55.730108][ C1] ? find_held_lock+0x2c/0x110 [ 55.730261][ C1] netlink_sendmsg+0x723/0xbe0 [ 55.730409][ C1] ? __pfx_netlink_sendmsg+0x10/0x10 [ 55.730558][ C1] ? __might_fault+0xc3/0x170 [ 55.730710][ C1] ? __import_iovec+0x35d/0x5d0 [ 55.730862][ C1] ____sys_sendmsg+0x7b2/0xa10 [ 55.731013][ C1] ? __pfx_____sys_sendmsg+0x10/0x10 [ 55.731159][ C1] ? __pfx_copy_msghdr_from_user+0x10/0x10 [ 55.731344][ C1] ? __pfx_validate_chain+0x10/0x10 [ 55.731495][ C1] ___sys_sendmsg+0xee/0x170 [ 55.731644][ C1] ? __pfx____sys_sendmsg+0x10/0x10 [ 55.731792][ C1] ? find_held_lock+0x2c/0x110 [ 55.731941][ C1] ? __lock_release+0x103/0x460 [ 55.732094][ C1] ? __debug_check_no_obj_freed+0x253/0x520 [ 55.732278][ C1] ? __pfx___lock_release+0x10/0x10 [ 55.732425][ C1] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 55.732576][ C1] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 55.732763][ C1] ? __fget_light+0x53/0x1e0 [ 55.732911][ C1] __sys_sendmsg+0xcd/0x170 [ 55.733058][ C1] ? __pfx___sys_sendmsg+0x10/0x10 [ 55.733208][ C1] ? __virt_addr_valid+0x230/0x430 [ 55.733359][ C1] do_syscall_64+0xc1/0x1d0 [ 55.733508][ C1] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 55.733694][ C1] RIP: 0033:0x7fb86e97d7b7 [ 55.733850][ C1] 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 [ 55.734375][ C1] RSP: 002b:00007ffe1bf900a8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 55.734603][ C1] RAX: ffffffffffffffda RBX: 00007ffe1bf907e0 RCX: 00007fb86e97d7b7 [ 55.734826][ C1] RDX: 0000000000000000 RSI: 00007ffe1bf90110 RDI: 0000000000000005 [ 55.735048][ C1] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078 [ 55.735268][ C1] R10: 00007fb86e83b4a8 R11: 0000000000000246 R12: 0000000000000002 [ 55.735489][ C1] R13: 0000000066ab901b R14: 0000000000496600 R15: 0000000000000000 [ 55.735712][ C1]