[ 4359.490318][T11703] netdevsim netdevsim305 eni305np1: renamed from eth0 [ 4359.577825][T11705] netdevsim netdevsim692 eni692np1: renamed from eth1 [ 4361.490224][T11732] [ 4361.490396][T11732] ============================= [ 4361.490604][T11732] WARNING: suspicious RCU usage [ 4361.490807][T11732] 6.12.0-rc7-virtme #1 Not tainted [ 4361.491042][T11732] ----------------------------- [ 4361.491226][T11732] net/core/dev.c:6300 RCU-list traversed in non-reader section!! [ 4361.491485][T11732] [ 4361.491485][T11732] other info that might help us debug this: [ 4361.491485][T11732] [ 4361.491839][T11732] [ 4361.491839][T11732] rcu_scheduler_active = 2, debug_locks = 1 [ 4361.492099][T11732] 2 locks held by busy_poller/11732: [ 4361.492284][T11732] #0: ffffffffb885a3f0 (cb_lock){++++}-{3:3}, at: genl_rcv+0x19/0x40 [ 4361.492564][T11732] #1: ffffffffb8802988 (rtnl_mutex){+.+.}-{3:3}, at: netdev_nl_napi_set_doit+0xe4/0x640 [ 4361.492900][T11732] [ 4361.492900][T11732] stack backtrace: [ 4361.493125][T11732] CPU: 2 UID: 0 PID: 11732 Comm: busy_poller Not tainted 6.12.0-rc7-virtme #1 [ 4361.493415][T11732] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 4361.493626][T11732] Call Trace: [ 4361.493757][T11732] [ 4361.493845][T11732] dump_stack_lvl+0xb0/0xd0 [ 4361.494018][T11732] lockdep_rcu_suspicious+0x1ea/0x280 [ 4361.494188][T11732] napi_by_id+0x134/0x170 [ 4361.494318][T11732] netdev_nl_napi_set_doit+0xeb/0x640 [ 4361.494485][T11732] ? __pfx_netdev_nl_napi_set_doit+0x10/0x10 [ 4361.494698][T11732] ? __nla_parse+0x26/0x30 [ 4361.494864][T11732] ? genl_family_rcv_msg_attrs_parse.constprop.0+0x162/0x240 [ 4361.495114][T11732] genl_family_rcv_msg_doit+0x1d4/0x2b0 [ 4361.495281][T11732] ? __pfx_genl_family_rcv_msg_doit+0x10/0x10 [ 4361.495481][T11732] ? __pfx___lock_release+0x10/0x10 [ 4361.495646][T11732] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 4361.495818][T11732] ? validate_chain+0x1fe/0xae0 [ 4361.495998][T11732] genl_family_rcv_msg+0x347/0x5b0 [ 4361.496165][T11732] ? __pfx_genl_family_rcv_msg+0x10/0x10 [ 4361.496329][T11732] ? __pfx_netdev_nl_napi_set_doit+0x10/0x10 [ 4361.496543][T11732] genl_rcv_msg+0xa3/0x140 [ 4361.496717][T11732] netlink_rcv_skb+0x130/0x360 [ 4361.496895][T11732] ? __pfx_genl_rcv_msg+0x10/0x10 [ 4361.497063][T11732] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 4361.497243][T11732] ? genl_rcv+0x19/0x40 [ 4361.497374][T11732] ? __pfx_down_read+0x10/0x10 [ 4361.497544][T11732] ? netlink_deliver_tap+0x13e/0x340 [ 4361.497730][T11732] genl_rcv+0x28/0x40 [ 4361.497861][T11732] netlink_unicast+0x44b/0x710 [ 4361.498039][T11732] ? __pfx_netlink_unicast+0x10/0x10 [ 4361.498208][T11732] ? __wake_up+0x44/0x60 [ 4361.498347][T11732] netlink_sendmsg+0x723/0xbe0 [ 4361.498531][T11732] ? __pfx_netlink_sendmsg+0x10/0x10 [ 4361.498723][T11732] ? fdget+0x52/0x1e0 [ 4361.498867][T11732] __sys_sendto+0x377/0x400 [ 4361.499049][T11732] ? __pfx___sys_sendto+0x10/0x10 [ 4361.499243][T11732] ? do_user_addr_fault+0x972/0xe30 [ 4361.499423][T11732] ? __pfx___lock_release+0x10/0x10 [ 4361.499588][T11732] ? __up_read+0x1a7/0x780 [ 4361.499753][T11732] ? trace_lock_acquire+0x14d/0x1f0 [ 4361.499922][T11732] ? __pfx___up_read+0x10/0x10 [ 4361.500107][T11732] ? do_user_addr_fault+0x972/0xe30 [ 4361.500274][T11732] ? do_user_addr_fault+0x97c/0xe30 [ 4361.500443][T11732] __x64_sys_sendto+0xe0/0x1c0 [ 4361.500612][T11732] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 4361.500817][T11732] do_syscall_64+0xc1/0x1d0 [ 4361.500993][T11732] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 4361.501207][T11732] RIP: 0033:0x7fdcf8d0c700 [ 4361.501382][T11732] 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 [ 4361.502002][T11732] RSP: 002b:00007ffedae970e8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 4361.502272][T11732] RAX: ffffffffffffffda RBX: 00007ffedae97100 RCX: 00007fdcf8d0c700 [ 4361.502540][T11732] RDX: 0000000000000034 RSI: 00007fdcf8b79270 RDI: 0000000000000005 [ 4361.502812][T11732] RBP: 00007fdcf8b79010 R08: 0000000000000000 R09: 0000000000000000 [ 4361.503063][T11732] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000301552f0 [ 4361.503316][T11732] R13: 00007fdcf8b79010 R14: 0000000030155310 R15: 00007fdcf8e07000 [ 4361.503580][T11732]