[ 205.817843][ T2449] netdevsim netdevsim682 eni682np1: renamed from eth1 [ 205.907574][ T2450] netdevsim netdevsim425 eni425np1: renamed from eth0 [ 207.757232][ T2478] [ 207.757477][ T2478] ============================= [ 207.757645][ T2478] WARNING: suspicious RCU usage [ 207.757834][ T2478] 6.12.0-rc6-virtme #1 Not tainted [ 207.757996][ T2478] ----------------------------- [ 207.758159][ T2478] net/core/dev.c:6300 RCU-list traversed in non-reader section!! [ 207.758593][ T2478] [ 207.758593][ T2478] other info that might help us debug this: [ 207.758593][ T2478] [ 207.758916][ T2478] [ 207.758916][ T2478] rcu_scheduler_active = 2, debug_locks = 1 [ 207.759174][ T2478] 2 locks held by busy_poller/2478: [ 207.759335][ T2478] #0: ffffffffa7059a30 (cb_lock){++++}-{3:3}, at: genl_rcv+0x19/0x40 [ 207.759595][ T2478] #1: ffffffffa70026c8 (rtnl_mutex){+.+.}-{3:3}, at: netdev_nl_napi_set_doit+0xe4/0x640 [ 207.759895][ T2478] [ 207.759895][ T2478] stack backtrace: [ 207.760096][ T2478] CPU: 1 UID: 0 PID: 2478 Comm: busy_poller Not tainted 6.12.0-rc6-virtme #1 [ 207.760375][ T2478] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 207.760572][ T2478] Call Trace: [ 207.760697][ T2478] [ 207.760784][ T2478] dump_stack_lvl+0xb0/0xd0 [ 207.760951][ T2478] lockdep_rcu_suspicious+0x1ea/0x280 [ 207.761116][ T2478] napi_by_id+0x134/0x170 [ 207.761241][ T2478] netdev_nl_napi_set_doit+0xeb/0x640 [ 207.761405][ T2478] ? __pfx_netdev_nl_napi_set_doit+0x10/0x10 [ 207.761607][ T2478] ? __nla_parse+0x26/0x30 [ 207.761772][ T2478] ? genl_family_rcv_msg_attrs_parse.constprop.0+0x162/0x240 [ 207.762015][ T2478] genl_family_rcv_msg_doit+0x1d4/0x2b0 [ 207.762177][ T2478] ? __pfx_genl_family_rcv_msg_doit+0x10/0x10 [ 207.762372][ T2478] ? __pfx___lock_release+0x10/0x10 [ 207.762532][ T2478] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 207.762705][ T2478] ? validate_chain+0x1fe/0xae0 [ 207.762873][ T2478] genl_family_rcv_msg+0x347/0x5b0 [ 207.763035][ T2478] ? __pfx_genl_family_rcv_msg+0x10/0x10 [ 207.763196][ T2478] ? __pfx_netdev_nl_napi_set_doit+0x10/0x10 [ 207.763407][ T2478] genl_rcv_msg+0xa3/0x140 [ 207.763573][ T2478] netlink_rcv_skb+0x130/0x360 [ 207.763732][ T2478] ? __pfx_genl_rcv_msg+0x10/0x10 [ 207.763893][ T2478] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 207.764070][ T2478] ? genl_rcv+0x19/0x40 [ 207.764193][ T2478] ? __pfx_down_read+0x10/0x10 [ 207.764355][ T2478] ? netlink_deliver_tap+0x13e/0x340 [ 207.764531][ T2478] genl_rcv+0x28/0x40 [ 207.764654][ T2478] netlink_unicast+0x44b/0x710 [ 207.764817][ T2478] ? __pfx_netlink_unicast+0x10/0x10 [ 207.764980][ T2478] ? __wake_up+0x44/0x60 [ 207.765107][ T2478] netlink_sendmsg+0x723/0xbe0 [ 207.765271][ T2478] ? __pfx_netlink_sendmsg+0x10/0x10 [ 207.765437][ T2478] ? fdget+0x52/0x1e0 [ 207.765568][ T2478] __sys_sendto+0x377/0x400 [ 207.765730][ T2478] ? __pfx___sys_sendto+0x10/0x10 [ 207.765888][ T2478] ? __might_fault+0x11b/0x170 [ 207.766064][ T2478] ? rseq_update_cpu_node_id+0xe6/0x140 [ 207.766225][ T2478] ? __rseq_handle_notify_resume+0x288/0x3e0 [ 207.766426][ T2478] ? __pfx___rseq_handle_notify_resume+0x10/0x10 [ 207.766637][ T2478] __x64_sys_sendto+0xe0/0x1c0 [ 207.766800][ T2478] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 207.766999][ T2478] do_syscall_64+0xc1/0x1d0 [ 207.767162][ T2478] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 207.767363][ T2478] RIP: 0033:0x7f84db49b700 [ 207.767530][ T2478] 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 [ 207.768083][ T2478] RSP: 002b:00007ffc76cb71f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 207.768325][ T2478] RAX: ffffffffffffffda RBX: 00007ffc76cb7210 RCX: 00007f84db49b700 [ 207.768565][ T2478] RDX: 0000000000000034 RSI: 00007f84db308270 RDI: 0000000000000005 [ 207.768803][ T2478] RBP: 00007f84db308010 R08: 0000000000000000 R09: 0000000000000000 [ 207.769040][ T2478] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000117162f0 [ 207.769281][ T2478] R13: 00007f84db308010 R14: 0000000011716310 R15: 00007f84db596000 [ 207.769532][ T2478]