[ 33.934831][ T823] netdevsim netdevsim425 eni425np1: renamed from eth0 [ 34.027826][ T822] netdevsim netdevsim673 eni673np1: renamed from eth1 [ 36.136976][ T851] [ 36.137239][ T851] ============================= [ 36.137434][ T851] WARNING: suspicious RCU usage [ 36.137604][ T851] 6.12.0-rc6-virtme #1 Not tainted [ 36.137771][ T851] ----------------------------- [ 36.137936][ T851] net/core/dev.c:6300 RCU-list traversed in non-reader section!! [ 36.138374][ T851] [ 36.138374][ T851] other info that might help us debug this: [ 36.138374][ T851] [ 36.138693][ T851] [ 36.138693][ T851] rcu_scheduler_active = 2, debug_locks = 1 [ 36.138939][ T851] 2 locks held by busy_poller/851: [ 36.139115][ T851] #0: ffffffffb74594b0 (cb_lock){++++}-{3:3}, at: genl_rcv+0x19/0x40 [ 36.139399][ T851] #1: ffffffffb7402388 (rtnl_mutex){+.+.}-{3:3}, at: netdev_nl_napi_set_doit+0xe4/0x640 [ 36.139701][ T851] [ 36.139701][ T851] stack backtrace: [ 36.139907][ T851] CPU: 1 UID: 0 PID: 851 Comm: busy_poller Not tainted 6.12.0-rc6-virtme #1 [ 36.140201][ T851] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 36.140408][ T851] Call Trace: [ 36.140538][ T851] [ 36.140636][ T851] dump_stack_lvl+0xb0/0xd0 [ 36.140810][ T851] lockdep_rcu_suspicious+0x1ea/0x280 [ 36.140981][ T851] napi_by_id+0x134/0x170 [ 36.141116][ T851] netdev_nl_napi_set_doit+0xeb/0x640 [ 36.141286][ T851] ? __pfx_netdev_nl_napi_set_doit+0x10/0x10 [ 36.141500][ T851] ? __nla_parse+0x26/0x30 [ 36.141668][ T851] ? genl_family_rcv_msg_attrs_parse.constprop.0+0x162/0x240 [ 36.141919][ T851] genl_family_rcv_msg_doit+0x1d4/0x2b0 [ 36.142088][ T851] ? __pfx_genl_family_rcv_msg_doit+0x10/0x10 [ 36.142294][ T851] ? __pfx___lock_release+0x10/0x10 [ 36.142461][ T851] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 36.142639][ T851] ? validate_chain+0x1fe/0xae0 [ 36.142814][ T851] genl_family_rcv_msg+0x347/0x5b0 [ 36.142983][ T851] ? __pfx_genl_family_rcv_msg+0x10/0x10 [ 36.143152][ T851] ? __pfx_netdev_nl_napi_set_doit+0x10/0x10 [ 36.143390][ T851] genl_rcv_msg+0xa3/0x140 [ 36.143564][ T851] netlink_rcv_skb+0x130/0x360 [ 36.143736][ T851] ? __pfx_genl_rcv_msg+0x10/0x10 [ 36.143912][ T851] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 36.144098][ T851] ? genl_rcv+0x19/0x40 [ 36.144229][ T851] ? __pfx_down_read+0x10/0x10 [ 36.144406][ T851] ? netlink_deliver_tap+0x13e/0x340 [ 36.144588][ T851] genl_rcv+0x28/0x40 [ 36.144716][ T851] netlink_unicast+0x44b/0x710 [ 36.144889][ T851] ? __pfx_netlink_unicast+0x10/0x10 [ 36.145057][ T851] ? __wake_up+0x44/0x60 [ 36.145214][ T851] netlink_sendmsg+0x723/0xbe0 [ 36.145394][ T851] ? __pfx_netlink_sendmsg+0x10/0x10 [ 36.145576][ T851] ? fdget+0x52/0x1e0 [ 36.145723][ T851] __sys_sendto+0x377/0x400 [ 36.145901][ T851] ? __pfx___sys_sendto+0x10/0x10 [ 36.146090][ T851] ? do_user_addr_fault+0x972/0xe30 [ 36.146280][ T851] ? __pfx___lock_release+0x10/0x10 [ 36.146460][ T851] ? __up_read+0x1a7/0x780 [ 36.146626][ T851] ? trace_lock_acquire+0x14d/0x1f0 [ 36.146792][ T851] ? __pfx___up_read+0x10/0x10 [ 36.146964][ T851] ? do_user_addr_fault+0x972/0xe30 [ 36.147135][ T851] ? do_user_addr_fault+0x97c/0xe30 [ 36.147300][ T851] __x64_sys_sendto+0xe0/0x1c0 [ 36.147467][ T851] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 36.147678][ T851] do_syscall_64+0xc1/0x1d0 [ 36.147849][ T851] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 36.148054][ T851] RIP: 0033:0x7fc2723cc700 [ 36.148230][ T851] 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 [ 36.148806][ T851] RSP: 002b:00007fff47830958 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 36.149062][ T851] RAX: ffffffffffffffda RBX: 00007fff47830970 RCX: 00007fc2723cc700 [ 36.149337][ T851] RDX: 0000000000000034 RSI: 00007fc272239270 RDI: 0000000000000005 [ 36.149596][ T851] RBP: 00007fc272239010 R08: 0000000000000000 R09: 0000000000000000 [ 36.149852][ T851] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000350d52f0 [ 36.150108][ T851] R13: 00007fc272239010 R14: 00000000350d5310 R15: 00007fc2724c7000 [ 36.150383][ T851]