[ 4274.081647][T16639] netdevsim netdevsim277 eni277np1: renamed from eth0 [ 4274.177690][T16641] netdevsim netdevsim635 eni635np1: renamed from eth1 [ 4276.121670][T16668] [ 4276.121794][T16668] ============================= [ 4276.122021][T16668] WARNING: suspicious RCU usage [ 4276.122186][T16668] 6.12.0-rc6-virtme #1 Not tainted [ 4276.122403][T16668] ----------------------------- [ 4276.122568][T16668] net/core/dev.c:6300 RCU-list traversed in non-reader section!! [ 4276.122804][T16668] [ 4276.122804][T16668] other info that might help us debug this: [ 4276.122804][T16668] [ 4276.123488][T16668] [ 4276.123488][T16668] rcu_scheduler_active = 2, debug_locks = 1 [ 4276.123732][T16668] 2 locks held by busy_poller/16668: [ 4276.123897][T16668] #0: ffffffffb9859770 (cb_lock){++++}-{3:3}, at: genl_rcv+0x19/0x40 [ 4276.124165][T16668] #1: ffffffffb9802408 (rtnl_mutex){+.+.}-{3:3}, at: netdev_nl_napi_set_doit+0xe4/0x640 [ 4276.124468][T16668] [ 4276.124468][T16668] stack backtrace: [ 4276.124696][T16668] CPU: 1 UID: 0 PID: 16668 Comm: busy_poller Not tainted 6.12.0-rc6-virtme #1 [ 4276.124975][T16668] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 4276.125173][T16668] Call Trace: [ 4276.125303][T16668] [ 4276.125390][T16668] dump_stack_lvl+0xb0/0xd0 [ 4276.125561][T16668] lockdep_rcu_suspicious+0x1ea/0x280 [ 4276.125725][T16668] napi_by_id+0x134/0x170 [ 4276.125852][T16668] netdev_nl_napi_set_doit+0xeb/0x640 [ 4276.126031][T16668] ? __pfx_netdev_nl_napi_set_doit+0x10/0x10 [ 4276.126234][T16668] ? __nla_parse+0x26/0x30 [ 4276.126395][T16668] ? genl_family_rcv_msg_attrs_parse.constprop.0+0x162/0x240 [ 4276.126635][T16668] genl_family_rcv_msg_doit+0x1d4/0x2b0 [ 4276.126797][T16668] ? __pfx_genl_family_rcv_msg_doit+0x10/0x10 [ 4276.126992][T16668] ? __pfx___lock_release+0x10/0x10 [ 4276.127157][T16668] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 4276.127325][T16668] ? validate_chain+0x1fe/0xae0 [ 4276.127496][T16668] genl_family_rcv_msg+0x347/0x5b0 [ 4276.127658][T16668] ? __pfx_genl_family_rcv_msg+0x10/0x10 [ 4276.127819][T16668] ? __pfx_netdev_nl_napi_set_doit+0x10/0x10 [ 4276.128029][T16668] genl_rcv_msg+0xa3/0x140 [ 4276.128190][T16668] netlink_rcv_skb+0x130/0x360 [ 4276.128351][T16668] ? __pfx_genl_rcv_msg+0x10/0x10 [ 4276.128529][T16668] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 4276.128702][T16668] ? genl_rcv+0x19/0x40 [ 4276.128823][T16668] ? __pfx_down_read+0x10/0x10 [ 4276.128987][T16668] ? netlink_deliver_tap+0x13e/0x340 [ 4276.129151][T16668] genl_rcv+0x28/0x40 [ 4276.129274][T16668] netlink_unicast+0x44b/0x710 [ 4276.129440][T16668] ? __pfx_netlink_unicast+0x10/0x10 [ 4276.129602][T16668] ? __wake_up+0x44/0x60 [ 4276.129729][T16668] netlink_sendmsg+0x723/0xbe0 [ 4276.129899][T16668] ? __pfx_netlink_sendmsg+0x10/0x10 [ 4276.130062][T16668] ? fdget+0x52/0x1e0 [ 4276.130191][T16668] __sys_sendto+0x377/0x400 [ 4276.130354][T16668] ? __pfx___sys_sendto+0x10/0x10 [ 4276.130513][T16668] ? __might_fault+0x11b/0x170 [ 4276.130688][T16668] ? rseq_update_cpu_node_id+0xe6/0x140 [ 4276.130850][T16668] ? __rseq_handle_notify_resume+0x288/0x3e0 [ 4276.131052][T16668] ? __pfx___rseq_handle_notify_resume+0x10/0x10 [ 4276.131267][T16668] __x64_sys_sendto+0xe0/0x1c0 [ 4276.131426][T16668] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 4276.131623][T16668] do_syscall_64+0xc1/0x1d0 [ 4276.131784][T16668] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 4276.131982][T16668] RIP: 0033:0x7f65f258e700 [ 4276.132154][T16668] 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 [ 4276.132738][T16668] RSP: 002b:00007ffde51970c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 4276.132981][T16668] RAX: ffffffffffffffda RBX: 00007ffde51970e0 RCX: 00007f65f258e700 [ 4276.133223][T16668] RDX: 0000000000000034 RSI: 00007f65f23fb270 RDI: 0000000000000005 [ 4276.133460][T16668] RBP: 00007f65f23fb010 R08: 0000000000000000 R09: 0000000000000000 [ 4276.133701][T16668] R10: 0000000000000000 R11: 0000000000000246 R12: 000000002edff2f0 [ 4276.133939][T16668] R13: 00007f65f23fb010 R14: 000000002edff310 R15: 00007f65f2689000 [ 4276.134195][T16668]