[ 4319.063350][T10620] netdevsim netdevsim370 eni370np1: renamed from eth0 [ 4319.157361][T10622] netdevsim netdevsim629 eni629np1: renamed from eth1 [ 4321.254522][T10649] [ 4321.254862][T10649] ============================= [ 4321.255088][T10649] WARNING: suspicious RCU usage [ 4321.255283][T10649] 6.12.0-rc6-virtme #1 Not tainted [ 4321.256245][T10649] ----------------------------- [ 4321.256458][T10649] net/core/dev.c:6300 RCU-list traversed in non-reader section!! [ 4321.256739][T10649] [ 4321.256739][T10649] other info that might help us debug this: [ 4321.256739][T10649] [ 4321.257104][T10649] [ 4321.257104][T10649] rcu_scheduler_active = 2, debug_locks = 1 [ 4321.257393][T10649] 2 locks held by busy_poller/10649: [ 4321.257592][T10649] #0: ffffffffaf259eb0 (cb_lock){++++}-{3:3}, at: genl_rcv+0x19/0x40 [ 4321.257909][T10649] #1: ffffffffaf202548 (rtnl_mutex){+.+.}-{3:3}, at: netdev_nl_napi_set_doit+0xe4/0x640 [ 4321.258270][T10649] [ 4321.258270][T10649] stack backtrace: [ 4321.258521][T10649] CPU: 3 UID: 0 PID: 10649 Comm: busy_poller Not tainted 6.12.0-rc6-virtme #1 [ 4321.258857][T10649] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 4321.259105][T10649] Call Trace: [ 4321.259249][T10649] [ 4321.259349][T10649] dump_stack_lvl+0xb0/0xd0 [ 4321.259556][T10649] lockdep_rcu_suspicious+0x1ea/0x280 [ 4321.259759][T10649] napi_by_id+0x134/0x170 [ 4321.259911][T10649] netdev_nl_napi_set_doit+0xeb/0x640 [ 4321.260102][T10649] ? __pfx_netdev_nl_napi_set_doit+0x10/0x10 [ 4321.260345][T10649] ? __nla_parse+0x26/0x30 [ 4321.260536][T10649] ? genl_family_rcv_msg_attrs_parse.constprop.0+0x162/0x240 [ 4321.260820][T10649] genl_family_rcv_msg_doit+0x1d4/0x2b0 [ 4321.261018][T10649] ? __pfx_genl_family_rcv_msg_doit+0x10/0x10 [ 4321.261259][T10649] ? __pfx___lock_release+0x10/0x10 [ 4321.261447][T10649] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 4321.261643][T10649] ? validate_chain+0x1fe/0xae0 [ 4321.261861][T10649] genl_family_rcv_msg+0x347/0x5b0 [ 4321.262058][T10649] ? __pfx_genl_family_rcv_msg+0x10/0x10 [ 4321.262251][T10649] ? __pfx_netdev_nl_napi_set_doit+0x10/0x10 [ 4321.262501][T10649] genl_rcv_msg+0xa3/0x140 [ 4321.262701][T10649] netlink_rcv_skb+0x130/0x360 [ 4321.262893][T10649] ? __pfx_genl_rcv_msg+0x10/0x10 [ 4321.263092][T10649] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 4321.263302][T10649] ? genl_rcv+0x19/0x40 [ 4321.263457][T10649] ? __pfx_down_read+0x10/0x10 [ 4321.263654][T10649] ? netlink_deliver_tap+0x13e/0x340 [ 4321.263854][T10649] genl_rcv+0x28/0x40 [ 4321.264000][T10649] netlink_unicast+0x44b/0x710 [ 4321.264197][T10649] ? __pfx_netlink_unicast+0x10/0x10 [ 4321.264395][T10649] ? __wake_up+0x44/0x60 [ 4321.264550][T10649] netlink_sendmsg+0x723/0xbe0 [ 4321.264747][T10649] ? __pfx_netlink_sendmsg+0x10/0x10 [ 4321.264941][T10649] ? fdget+0x52/0x1e0 [ 4321.265104][T10649] __sys_sendto+0x377/0x400 [ 4321.265297][T10649] ? __pfx___sys_sendto+0x10/0x10 [ 4321.265504][T10649] ? __pfx___schedule+0x10/0x10 [ 4321.265695][T10649] ? rseq_update_cpu_node_id+0xe6/0x140 [ 4321.265893][T10649] ? __rseq_handle_notify_resume+0x288/0x3e0 [ 4321.266127][T10649] ? do_user_addr_fault+0x374/0xe30 [ 4321.266319][T10649] ? __pfx___rseq_handle_notify_resume+0x10/0x10 [ 4321.266561][T10649] __x64_sys_sendto+0xe0/0x1c0 [ 4321.266753][T10649] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 4321.266991][T10649] do_syscall_64+0xc1/0x1d0 [ 4321.267185][T10649] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 4321.267424][T10649] RIP: 0033:0x7f1f529e0700 [ 4321.267613][T10649] 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 [ 4321.268242][T10649] RSP: 002b:00007ffe78d1d358 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 4321.268518][T10649] RAX: ffffffffffffffda RBX: 00007ffe78d1d370 RCX: 00007f1f529e0700 [ 4321.268795][T10649] RDX: 0000000000000034 RSI: 00007f1f5284d270 RDI: 0000000000000005 [ 4321.269071][T10649] RBP: 00007f1f5284d010 R08: 0000000000000000 R09: 0000000000000000 [ 4321.269340][T10649] R10: 0000000000000000 R11: 0000000000000246 R12: 000000003c79d2f0 [ 4321.269608][T10649] R13: 00007f1f5284d010 R14: 000000003c79d310 R15: 00007f1f52adb000 [ 4321.269893][T10649]