[ 80.511282][ T1442] 8021q: 802.1Q VLAN Support v1.8 [ 82.168155][ T1467] lag2: Mode changed to "loadbalance" [ 82.364597][ T1470] lag2: Port device veth3 added [ 82.632623][ T1481] lag2: Port device veth5 added [ 82.799933][ T1483] 8021q: adding VLAN 0 to HW filter on device lag2 [ 82.885665][ T1484] 8021q: adding VLAN 0 to HW filter on device lag2 [ 83.275970][ T1489] gre: GRE over IPv4 demultiplexor driver [ 83.292519][ T1489] ip_gre: GRE over IPv4 tunneling driver [ 85.083354][ T1517] lag1: Mode changed to "loadbalance" [ 85.309069][ T1520] lag1: Port device veth2 added [ 85.314370][ T1467] [ 85.314572][ T1467] ============================= [ 85.314732][ T1467] WARNING: suspicious RCU usage [ 85.314885][ T1467] 6.14.0-rc6-virtme #1 Not tainted [ 85.315051][ T1467] ----------------------------- [ 85.315218][ T1467] ./include/net/net_namespace.h:418 suspicious rcu_dereference_check() usage! [ 85.315480][ T1467] [ 85.315480][ T1467] other info that might help us debug this: [ 85.315480][ T1467] [ 85.315775][ T1467] [ 85.315775][ T1467] rcu_scheduler_active = 2, debug_locks = 1 [ 85.316000][ T1467] 1 lock held by teamd/1467: [ 85.316168][ T1467] #0: ffffffff88f5b5c0 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x1f0/0x18d0 [ 85.316464][ T1467] [ 85.316464][ T1467] stack backtrace: [ 85.316675][ T1467] CPU: 1 UID: 0 PID: 1467 Comm: teamd Not tainted 6.14.0-rc6-virtme #1 [ 85.316679][ T1467] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 85.316681][ T1467] Call Trace: [ 85.316683][ T1467] [ 85.316685][ T1467] dump_stack_lvl+0xb0/0xd0 [ 85.316692][ T1467] lockdep_rcu_suspicious+0x1ea/0x280 [ 85.316702][ T1467] dev_hard_start_xmit+0x2fc/0x3f0 [ 85.316712][ T1467] __dev_queue_xmit+0xfaf/0x18d0 [ 85.316726][ T1467] ? __pfx___dev_queue_xmit+0x10/0x10 [ 85.316731][ T1467] ? packet_parse_headers+0x231/0x9c0 [ 85.316739][ T1467] ? __pfx_sock_alloc_send_pskb+0x10/0x10 [ 85.316745][ T1467] ? __pfx_packet_parse_headers+0x10/0x10 [ 85.316749][ T1467] ? skb_copy_datagram_from_iter+0xe6/0x6f0 [ 85.316755][ T1467] ? packet_cached_dev_get+0xd5/0x210 [ 85.316764][ T1467] packet_snd+0xd0c/0x19d0 [ 85.316779][ T1467] ? __pfx_packet_snd+0x10/0x10 [ 85.316786][ T1467] ? build_sched_domains+0x14d0/0x1690 [ 85.316793][ T1467] ? __lock_release+0x103/0x460 [ 85.316797][ T1467] ? __might_fault+0x11b/0x170 [ 85.316803][ T1467] ? __pfx___lock_release+0x10/0x10 [ 85.316812][ T1467] __sys_sendto+0x3c3/0x450 [ 85.316817][ T1467] ? __pfx___sys_sendto+0x10/0x10 [ 85.316820][ T1467] ? __might_fault+0x11b/0x170 [ 85.316834][ T1467] ? __sys_getsockname+0x150/0x1f0 [ 85.316838][ T1467] ? __pfx___sys_getsockname+0x10/0x10 [ 85.316843][ T1467] ? __virt_addr_valid+0x22b/0x430 [ 85.316851][ T1467] ? __pfx_slab_free_after_rcu_debug+0x10/0x10 [ 85.316856][ T1467] ? trace_rcu_segcb_stats+0x36/0x1e0 [ 85.316865][ T1467] ? __pfx_slab_free_after_rcu_debug+0x10/0x10 [ 85.316868][ T1467] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 85.316876][ T1467] __x64_sys_sendto+0xe0/0x1c0 [ 85.316880][ T1467] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 85.316885][ T1467] do_syscall_64+0xc1/0x1d0 [ 85.316892][ T1467] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 85.316898][ T1467] RIP: 0033:0x7f532b2418f0 [ 85.316902][ T1467] Code: ff ff 64 89 02 eb bd 0f 1f 00 f3 0f 1e fa 41 89 ca 64 8b 04 25 18 00 00 00 85 c0 75 1d 45 31 c9 45 31 c0 b8 2c 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 68 c3 0f 1f 80 00 00 00 00 41 54 48 83 ec 20 [ 85.316905][ T1467] RSP: 002b:00007ffc7ba51bc8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 85.316908][ T1467] RAX: ffffffffffffffda RBX: 000000000cb193f0 RCX: 00007f532b2418f0 [ 85.316911][ T1467] RDX: 000000000000007c RSI: 00007ffc7ba51c40 RDI: 0000000000000006 [ 85.316913][ T1467] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 85.316915][ T1467] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000000007c [ 85.316916][ T1467] R13: 00007ffc7ba51c40 R14: 0000000000000006 R15: 000000000cb0c650 [ 85.316932][ T1467] [ 85.588618][ T1523] lag1: Port device veth4 added [ 85.767156][ T1525] 8021q: adding VLAN 0 to HW filter on device lag1 [ 92.071419][ T1552] Mirror/redirect action on [ 92.267790][ T1555] GACT probability NOT on [ 92.373855][ T1556] lag2: Port device veth5 removed [ 96.495605][ T1566] lag2: Port device veth3 removed [ 101.916546][ T1596] lag2: Mode changed to "loadbalance" [ 102.085981][ T1599] lag2: Port device veth3 added [ 102.356853][ T1604] lag2: Port device veth5 added [ 102.500368][ T1606] 8021q: adding VLAN 0 to HW filter on device lag2 [ 102.584508][ T1607] 8021q: adding VLAN 0 to HW filter on device lag2 [ 109.099475][ T1641] lag2: Port device veth3 removed [ 113.210436][ T1651] lag2: Port device veth5 removed [ 118.534188][ T1681] lag2: Mode changed to "loadbalance" [ 118.697470][ T1684] lag2: Port device veth3 added [ 118.984431][ T1689] lag2: Port device veth5 added [ 119.134589][ T1691] 8021q: adding VLAN 0 to HW filter on device lag2 [ 119.219469][ T1692] 8021q: adding VLAN 0 to HW filter on device lag2 [ 125.663058][ T1517] lag1: Port device veth4 removed [ 125.671636][ T1517] lag1: Port device veth2 removed [ 127.520762][ T1681] lag2: Port device veth5 removed [ 127.524246][ T1681] lag2: Port device veth3 removed