[ 30.524136][ C3] BUG: spinlock bad magic on CPU#3, tc/295 [ 30.524402][ C3] lock: noop_qdisc+0x240/0x300, .magic: 00000000, .owner: tc/295, .owner_cpu: 3 [ 30.524691][ C3] CPU: 3 UID: 0 PID: 295 Comm: tc Not tainted 6.10.0-virtme #1 [ 30.524932][ C3] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 30.525278][ C3] Call Trace: [ 30.525410][ C3] [ 30.525488][ C3] dump_stack_lvl+0xb0/0xd0 [ 30.525654][ C3] do_raw_spin_unlock+0x1ac/0x220 [ 30.525809][ C3] _raw_spin_unlock+0x23/0x40 [ 30.525970][ C3] net_tx_action+0x402/0x660 [ 30.526121][ C3] handle_softirqs+0x1f9/0x5c0 [ 30.526278][ C3] ? dev_deactivate_many+0x1e2/0x8d0 [ 30.526447][ C3] do_softirq+0x4d/0xa0 [ 30.526567][ C3] [ 30.526642][ C3] [ 30.526718][ C3] __local_bh_enable_ip+0xf6/0x120 [ 30.526873][ C3] dev_deactivate_many+0x1e7/0x8d0 [ 30.527021][ C3] ? __pfx___lock_release+0x10/0x10 [ 30.527172][ C3] dev_deactivate+0xc1/0x1b0 [ 30.527345][ C3] ? __pfx_dev_deactivate+0x10/0x10 [ 30.527493][ C3] qdisc_graft+0xb48/0x1110 [ 30.527657][ C3] ? qdisc_create+0x4cc/0xc90 [ 30.527808][ C3] ? __pfx_qdisc_graft+0x10/0x10 [ 30.527968][ C3] ? __pfx_qdisc_create+0x10/0x10 [ 30.528119][ C3] tc_modify_qdisc+0x95a/0x1490 [ 30.528304][ C3] ? trace_contention_end+0xeb/0x150 [ 30.528477][ C3] ? __pfx_tc_modify_qdisc+0x10/0x10 [ 30.528625][ C3] ? __mutex_lock+0x170/0xac0 [ 30.528775][ C3] ? trace_lock_acquire+0x14d/0x1f0 [ 30.528928][ C3] rtnetlink_rcv_msg+0x2fb/0xc10 [ 30.529092][ C3] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 30.529252][ C3] ? hlock_class+0x4e/0x130 [ 30.529409][ C3] ? mark_lock+0x38/0x3e0 [ 30.529525][ C3] ? __lock_acquire+0xb35/0x1560 [ 30.529685][ C3] netlink_rcv_skb+0x130/0x360 [ 30.529836][ C3] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 30.529983][ C3] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 30.530147][ C3] ? netlink_deliver_tap+0x13e/0x340 [ 30.530312][ C3] ? netlink_deliver_tap+0xc3/0x340 [ 30.530460][ C3] netlink_unicast+0x44b/0x710 [ 30.530618][ C3] ? __pfx_netlink_unicast+0x10/0x10 [ 30.530767][ C3] ? find_held_lock+0x2c/0x110 [ 30.530922][ C3] netlink_sendmsg+0x723/0xbe0 [ 30.531076][ C3] ? __pfx_netlink_sendmsg+0x10/0x10 [ 30.531231][ C3] ? __might_fault+0xc3/0x170 [ 30.531396][ C3] ? __import_iovec+0x35d/0x5d0 [ 30.531552][ C3] ____sys_sendmsg+0x7b2/0xa10 [ 30.531700][ C3] ? __pfx_____sys_sendmsg+0x10/0x10 [ 30.531859][ C3] ? __pfx_copy_msghdr_from_user+0x10/0x10 [ 30.532047][ C3] ___sys_sendmsg+0xee/0x170 [ 30.532201][ C3] ? __pfx____sys_sendmsg+0x10/0x10 [ 30.532357][ C3] ? kfree+0x2d/0x230 [ 30.532489][ C3] ? ___sys_recvmsg+0xe0/0x150 [ 30.532636][ C3] ? __pfx____sys_recvmsg+0x10/0x10 [ 30.532795][ C3] ? reacquire_held_locks+0x22f/0x4f0 [ 30.532942][ C3] ? do_user_addr_fault+0x8fd/0xe30 [ 30.533098][ C3] ? __fget_light+0x53/0x1e0 [ 30.533261][ C3] __sys_sendmsg+0xcd/0x170 [ 30.533407][ C3] ? __pfx___sys_sendmsg+0x10/0x10 [ 30.533561][ C3] ? __pfx___up_read+0x10/0x10 [ 30.533713][ C3] do_syscall_64+0xc1/0x1d0 [ 30.533863][ C3] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 30.534065][ C3] RIP: 0033:0x7ff554d817b7 [ 30.534223][ C3] 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 [ 30.534767][ C3] RSP: 002b:00007ffc472841f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 30.534991][ C3] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007ff554d817b7 [ 30.535236][ C3] RDX: 0000000000000000 RSI: 00007ffc47284260 RDI: 0000000000000005 [ 30.535481][ C3] RBP: 000000000047d6a0 R08: 0000000000000014 R09: 0000000000000000 [ 30.535704][ C3] R10: 00007ff554c3a708 R11: 0000000000000246 R12: 00007ffc47294520 [ 30.535936][ C3] R13: 0000000066ab8553 R14: 00000000004829c0 R15: 00007ff555014000 [ 30.536168][ C3] [ 39.657844][ T338] GACT probability NOT on [ 44.069944][ T411] Mirror/redirect action on