[ 34.734237][ C0] BUG: spinlock bad magic on CPU#0, tc/302 [ 34.734455][ C0] lock: noop_qdisc+0x240/0x300, .magic: 00000000, .owner: tc/302, .owner_cpu: 0 [ 34.734705][ C0] CPU: 0 UID: 0 PID: 302 Comm: tc Not tainted 6.10.0-virtme #1 [ 34.734948][ C0] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 34.735279][ C0] Call Trace: [ 34.735392][ C0] <IRQ> [ 34.735484][ C0] dump_stack_lvl+0xb0/0xd0 [ 34.735632][ C0] do_raw_spin_unlock+0x1ac/0x220 [ 34.735778][ C0] _raw_spin_unlock+0x23/0x40 [ 34.735923][ C0] net_tx_action+0x402/0x660 [ 34.736066][ C0] handle_softirqs+0x1f9/0x5c0 [ 34.736234][ C0] ? dev_deactivate_many+0x1e2/0x8d0 [ 34.736372][ C0] do_softirq+0x4d/0xa0 [ 34.736474][ C0] </IRQ> [ 34.736551][ C0] <TASK> [ 34.736620][ C0] __local_bh_enable_ip+0xf6/0x120 [ 34.736760][ C0] dev_deactivate_many+0x1e7/0x8d0 [ 34.736907][ C0] ? __pfx___lock_release+0x10/0x10 [ 34.737046][ C0] dev_deactivate+0xc1/0x1b0 [ 34.737188][ C0] ? __pfx_dev_deactivate+0x10/0x10 [ 34.737338][ C0] qdisc_graft+0xb48/0x1110 [ 34.737482][ C0] ? qdisc_create+0x4cc/0xc90 [ 34.737624][ C0] ? __pfx_qdisc_graft+0x10/0x10 [ 34.737769][ C0] ? __pfx_qdisc_create+0x10/0x10 [ 34.737919][ C0] tc_modify_qdisc+0x95a/0x1490 [ 34.738058][ C0] ? trace_contention_end+0xeb/0x150 [ 34.738196][ C0] ? __pfx_tc_modify_qdisc+0x10/0x10 [ 34.738336][ C0] ? __mutex_lock+0x170/0xac0 [ 34.738475][ C0] ? trace_lock_acquire+0x14d/0x1f0 [ 34.738618][ C0] rtnetlink_rcv_msg+0x2fb/0xc10 [ 34.738759][ C0] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 34.738912][ C0] ? hlock_class+0x4e/0x130 [ 34.739057][ C0] ? mark_lock+0x38/0x3e0 [ 34.739162][ C0] ? __lock_acquire+0xb35/0x1560 [ 34.739295][ C0] netlink_rcv_skb+0x130/0x360 [ 34.739436][ C0] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 34.739580][ C0] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 34.739726][ C0] ? netlink_deliver_tap+0x13e/0x340 [ 34.739863][ C0] ? netlink_deliver_tap+0xc3/0x340 [ 34.740009][ C0] netlink_unicast+0x44b/0x710 [ 34.740150][ C0] ? __pfx_netlink_unicast+0x10/0x10 [ 34.740290][ C0] ? find_held_lock+0x2c/0x110 [ 34.740450][ C0] netlink_sendmsg+0x723/0xbe0 [ 34.740589][ C0] ? __pfx_netlink_sendmsg+0x10/0x10 [ 34.740737][ C0] ? __might_fault+0xc3/0x170 [ 34.740876][ C0] ? __import_iovec+0x35d/0x5d0 [ 34.741021][ C0] ____sys_sendmsg+0x7b2/0xa10 [ 34.741159][ C0] ? __pfx_____sys_sendmsg+0x10/0x10 [ 34.741297][ C0] ? __pfx_copy_msghdr_from_user+0x10/0x10 [ 34.741503][ C0] ___sys_sendmsg+0xee/0x170 [ 34.741644][ C0] ? __pfx____sys_sendmsg+0x10/0x10 [ 34.741791][ C0] ? kfree+0x2d/0x230 [ 34.741897][ C0] ? ___sys_recvmsg+0xe0/0x150 [ 34.742034][ C0] ? __pfx____sys_recvmsg+0x10/0x10 [ 34.742169][ C0] ? reacquire_held_locks+0x22f/0x4f0 [ 34.742302][ C0] ? do_user_addr_fault+0x8fd/0xe30 [ 34.742442][ C0] ? __fget_light+0x53/0x1e0 [ 34.742581][ C0] __sys_sendmsg+0xcd/0x170 [ 34.742717][ C0] ? __pfx___sys_sendmsg+0x10/0x10 [ 34.742856][ C0] ? __pfx___up_read+0x10/0x10 [ 34.743001][ C0] do_syscall_64+0xc1/0x1d0 [ 34.743139][ C0] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 34.743312][ C0] RIP: 0033:0x7f26ffdf37b7 [ 34.743466][ C0] 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 [ 34.743991][ C0] RSP: 002b:00007ffd1d1f98c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 34.744201][ C0] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f26ffdf37b7 [ 34.744409][ C0] RDX: 0000000000000000 RSI: 00007ffd1d1f9930 RDI: 0000000000000005 [ 34.744607][ C0] RBP: 000000000047d6a0 R08: 0000000000000014 R09: 0000000000000000 [ 34.744815][ C0] R10: 00007f26ffcac708 R11: 0000000000000246 R12: 00007ffd1d209bf0 [ 34.745021][ C0] R13: 0000000066ab80f4 R14: 00000000004829c0 R15: 00007f2700086000 [ 34.745223][ C0] </TASK> [ 35.679566][ T310] br1: port 1(veth1) entered blocking state [ 35.679849][ T310] br1: port 1(veth1) entered disabled state [ 35.680093][ T310] veth1: entered allmulticast mode [ 35.681686][ T310] veth1: entered promiscuous mode [ 35.808250][ T51] br1: port 1(veth1) entered blocking state [ 35.808496][ T51] br1: port 1(veth1) entered forwarding state [ 35.959752][ T312] br1: port 2(veth2) entered blocking state [ 35.960083][ T312] br1: port 2(veth2) entered disabled state [ 35.960557][ T312] veth2: entered allmulticast mode [ 35.962085][ T312] veth2: entered promiscuous mode [ 36.097372][ T50] br1: port 2(veth2) entered blocking state [ 36.097620][ T50] br1: port 2(veth2) entered forwarding state [ 36.450743][ T316] 8021q: 802.1Q VLAN Support v1.8 [ 37.443082][ T326] GACT probability NOT on [ 45.763344][ T362] Mirror/redirect action on [ 83.697582][ T535] br1: port 1(veth1) entered disabled state [ 83.832081][ T536] br1: port 2(veth2) entered disabled state [ 83.958887][ T538] veth2: left allmulticast mode [ 83.959053][ T538] veth2: left promiscuous mode [ 83.959342][ T538] br1: port 2(veth2) entered disabled state [ 83.960439][ T538] veth1: left allmulticast mode [ 83.960577][ T538] veth1: left promiscuous mode [ 83.962246][ T538] br1: port 1(veth1) entered disabled state