[ 56.768902][ C1] BUG: spinlock bad magic on CPU#1, ip/345 [ 56.769193][ C1] lock: noop_qdisc+0x240/0x300, .magic: 00000000, .owner: ip/345, .owner_cpu: 1 [ 56.769441][ C1] CPU: 1 UID: 0 PID: 345 Comm: ip Not tainted 6.10.0-virtme #1 [ 56.769645][ C1] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 56.769942][ C1] Call Trace: [ 56.770054][ C1] [ 56.770128][ C1] dump_stack_lvl+0xb0/0xd0 [ 56.770270][ C1] do_raw_spin_unlock+0x1ac/0x220 [ 56.770407][ C1] _raw_spin_unlock+0x23/0x40 [ 56.770543][ C1] net_tx_action+0x424/0x680 [ 56.770683][ C1] handle_softirqs+0x1f9/0x5c0 [ 56.770822][ C1] ? dev_deactivate_many+0x1e2/0x8d0 [ 56.770962][ C1] do_softirq+0x4d/0xa0 [ 56.771066][ C1] [ 56.771136][ C1] [ 56.771204][ C1] __local_bh_enable_ip+0xf6/0x120 [ 56.771338][ C1] dev_deactivate_many+0x1e7/0x8d0 [ 56.771475][ C1] __dev_close_many+0x12b/0x2d0 [ 56.771608][ C1] ? __pfx___dev_close_many+0x10/0x10 [ 56.771745][ C1] ? hlock_class+0x4e/0x130 [ 56.771884][ C1] dev_close_many+0x202/0x650 [ 56.772020][ C1] ? __pfx_dev_close_many+0x10/0x10 [ 56.772154][ C1] ? find_held_lock+0x2c/0x110 [ 56.772291][ C1] unregister_netdevice_many_notify+0x8e5/0x1570 [ 56.772468][ C1] ? __pfx___lock_release+0x10/0x10 [ 56.772606][ C1] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 56.772739][ C1] ? trace_lock_acquire+0x14d/0x1f0 [ 56.772873][ C1] ? __pfx_unregister_netdevice_many_notify+0x10/0x10 [ 56.773043][ C1] ? sock_def_readable+0x11e/0x300 [ 56.773182][ C1] ? mutex_is_locked+0x17/0x50 [ 56.773318][ C1] ? rtnl_is_locked+0x15/0x20 [ 56.773453][ C1] ? unregister_netdevice_queue+0x70/0x410 [ 56.773619][ C1] ? __pfx_unregister_netdevice_queue+0x10/0x10 [ 56.773788][ C1] ? __pfx_validate_chain+0x10/0x10 [ 56.773920][ C1] ? __pfx_unregister_netdevice_queue+0x10/0x10 [ 56.774087][ C1] rtnl_dellink+0x32c/0xa50 [ 56.774227][ C1] ? hlock_class+0x4e/0x130 [ 56.774363][ C1] ? __pfx_rtnl_dellink+0x10/0x10 [ 56.774512][ C1] ? trace_contention_end+0xeb/0x150 [ 56.774646][ C1] ? __mutex_lock+0x170/0xac0 [ 56.774789][ C1] ? find_held_lock+0x2c/0x110 [ 56.774925][ C1] ? rtnetlink_rcv_msg+0x2af/0xc10 [ 56.775058][ C1] ? __pfx___mutex_lock+0x10/0x10 [ 56.775204][ C1] ? __pfx___lock_release+0x10/0x10 [ 56.775340][ C1] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 56.775475][ C1] ? trace_lock_acquire+0x14d/0x1f0 [ 56.775616][ C1] rtnetlink_rcv_msg+0x2fb/0xc10 [ 56.775752][ C1] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 56.775890][ C1] ? hlock_class+0x4e/0x130 [ 56.776028][ C1] ? mark_lock+0x38/0x3e0 [ 56.776131][ C1] ? __lock_acquire+0xb35/0x1560 [ 56.776275][ C1] netlink_rcv_skb+0x130/0x360 [ 56.776416][ C1] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 56.776552][ C1] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 56.776688][ C1] ? netlink_deliver_tap+0x13e/0x340 [ 56.776820][ C1] ? netlink_deliver_tap+0xc3/0x340 [ 56.776953][ C1] netlink_unicast+0x44b/0x710 [ 56.777088][ C1] ? __pfx_netlink_unicast+0x10/0x10 [ 56.777222][ C1] ? find_held_lock+0x2c/0x110 [ 56.777361][ C1] netlink_sendmsg+0x723/0xbe0 [ 56.777495][ C1] ? __pfx_netlink_sendmsg+0x10/0x10 [ 56.777629][ C1] ? __might_fault+0xc3/0x170 [ 56.777762][ C1] ? __import_iovec+0x35d/0x5d0 [ 56.777897][ C1] ____sys_sendmsg+0x7b2/0xa10 [ 56.778031][ C1] ? __pfx_____sys_sendmsg+0x10/0x10 [ 56.778164][ C1] ? __pfx_copy_msghdr_from_user+0x10/0x10 [ 56.778331][ C1] ? __pfx_validate_chain+0x10/0x10 [ 56.778469][ C1] ___sys_sendmsg+0xee/0x170 [ 56.778606][ C1] ? __pfx____sys_sendmsg+0x10/0x10 [ 56.778740][ C1] ? find_held_lock+0x2c/0x110 [ 56.778876][ C1] ? __lock_release+0x103/0x460 [ 56.779011][ C1] ? __debug_check_no_obj_freed+0x253/0x520 [ 56.779179][ C1] ? __pfx___lock_release+0x10/0x10 [ 56.779311][ C1] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 56.779449][ C1] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 56.779619][ C1] ? __fget_light+0x53/0x1e0 [ 56.779755][ C1] __sys_sendmsg+0xcd/0x170 [ 56.779889][ C1] ? __pfx___sys_sendmsg+0x10/0x10 [ 56.780024][ C1] ? __virt_addr_valid+0x230/0x430 [ 56.780163][ C1] do_syscall_64+0xc1/0x1d0 [ 56.780299][ C1] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 56.780465][ C1] RIP: 0033:0x7f794d1b47b7 [ 56.780612][ 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 [ 56.781088][ C1] RSP: 002b:00007ffdc781e238 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 56.781296][ C1] RAX: ffffffffffffffda RBX: 00007ffdc781e960 RCX: 00007f794d1b47b7 [ 56.781496][ C1] RDX: 0000000000000000 RSI: 00007ffdc781e2a0 RDI: 0000000000000005 [ 56.781704][ C1] RBP: 0000000000000001 R08: 0000000000000003 R09: 0000000000000078 [ 56.781905][ C1] R10: 00007f794d072ef8 R11: 0000000000000246 R12: 0000000000000001 [ 56.782103][ C1] R13: 0000000066ab928d R14: 0000000000496600 R15: 0000000000000000 [ 56.782308][ C1]