[ 40.396589][ T1054] netdevsim netdevsim381 eni381np1: renamed from eth0 [ 40.405886][ T1052] netdevsim netdevsim612 eni612np1: renamed from eth1 [ 42.249437][ T1081] [ 42.249637][ T1081] ============================= [ 42.249820][ T1081] WARNING: suspicious RCU usage [ 42.249984][ T1081] 6.12.0-rc6-virtme #1 Not tainted [ 42.250147][ T1081] ----------------------------- [ 42.250307][ T1081] net/core/dev.c:6300 RCU-list traversed in non-reader section!! [ 42.250543][ T1081] [ 42.250543][ T1081] other info that might help us debug this: [ 42.250543][ T1081] [ 42.251784][ T1081] [ 42.251784][ T1081] rcu_scheduler_active = 2, debug_locks = 1 [ 42.252029][ T1081] 2 locks held by busy_poller/1081: [ 42.252192][ T1081] #0: ffffffffb7059670 (cb_lock){++++}-{3:3}, at: genl_rcv+0x19/0x40 [ 42.252450][ T1081] #1: ffffffffb7002408 (rtnl_mutex){+.+.}-{3:3}, at: netdev_nl_napi_set_doit+0xe4/0x640 [ 42.252836][ T1081] [ 42.252836][ T1081] stack backtrace: [ 42.253051][ T1081] CPU: 3 UID: 0 PID: 1081 Comm: busy_poller Not tainted 6.12.0-rc6-virtme #1 [ 42.253334][ T1081] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 42.253532][ T1081] Call Trace: [ 42.253657][ T1081] [ 42.253748][ T1081] dump_stack_lvl+0xb0/0xd0 [ 42.253918][ T1081] lockdep_rcu_suspicious+0x1ea/0x280 [ 42.254085][ T1081] napi_by_id+0x134/0x170 [ 42.254214][ T1081] netdev_nl_napi_set_doit+0xeb/0x640 [ 42.254495][ T1081] ? __pfx_netdev_nl_napi_set_doit+0x10/0x10 [ 42.254702][ T1081] ? __nla_parse+0x26/0x30 [ 42.254865][ T1081] ? genl_family_rcv_msg_attrs_parse.constprop.0+0x162/0x240 [ 42.255109][ T1081] genl_family_rcv_msg_doit+0x1d4/0x2b0 [ 42.255273][ T1081] ? __pfx_genl_family_rcv_msg_doit+0x10/0x10 [ 42.255473][ T1081] ? __pfx___lock_release+0x10/0x10 [ 42.255636][ T1081] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 42.255813][ T1081] ? validate_chain+0x1fe/0xae0 [ 42.255985][ T1081] genl_family_rcv_msg+0x347/0x5b0 [ 42.256150][ T1081] ? __pfx_genl_family_rcv_msg+0x10/0x10 [ 42.256313][ T1081] ? __pfx_netdev_nl_napi_set_doit+0x10/0x10 [ 42.256529][ T1081] genl_rcv_msg+0xa3/0x140 [ 42.256698][ T1081] netlink_rcv_skb+0x130/0x360 [ 42.256859][ T1081] ? __pfx_genl_rcv_msg+0x10/0x10 [ 42.257029][ T1081] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 42.257205][ T1081] ? genl_rcv+0x19/0x40 [ 42.257331][ T1081] ? __pfx_down_read+0x10/0x10 [ 42.257496][ T1081] ? netlink_deliver_tap+0x13e/0x340 [ 42.257674][ T1081] genl_rcv+0x28/0x40 [ 42.257796][ T1081] netlink_unicast+0x44b/0x710 [ 42.257961][ T1081] ? __pfx_netlink_unicast+0x10/0x10 [ 42.258124][ T1081] ? __wake_up+0x44/0x60 [ 42.258252][ T1081] netlink_sendmsg+0x723/0xbe0 [ 42.258420][ T1081] ? __pfx_netlink_sendmsg+0x10/0x10 [ 42.258584][ T1081] ? fdget+0x52/0x1e0 [ 42.258716][ T1081] __sys_sendto+0x377/0x400 [ 42.258878][ T1081] ? __pfx___sys_sendto+0x10/0x10 [ 42.259059][ T1081] ? do_user_addr_fault+0x972/0xe30 [ 42.259219][ T1081] ? __pfx___lock_release+0x10/0x10 [ 42.259377][ T1081] ? __up_read+0x1a7/0x780 [ 42.259539][ T1081] ? trace_lock_acquire+0x14d/0x1f0 [ 42.259701][ T1081] ? __pfx___up_read+0x10/0x10 [ 42.259866][ T1081] ? do_user_addr_fault+0x972/0xe30 [ 42.260028][ T1081] ? do_user_addr_fault+0x97c/0xe30 [ 42.260190][ T1081] __x64_sys_sendto+0xe0/0x1c0 [ 42.260349][ T1081] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 42.260547][ T1081] do_syscall_64+0xc1/0x1d0 [ 42.260708][ T1081] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 42.260906][ T1081] RIP: 0033:0x7fa9a83dc700 [ 42.261077][ T1081] 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 [ 42.261627][ T1081] RSP: 002b:00007ffc322ad448 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 42.261871][ T1081] RAX: ffffffffffffffda RBX: 00007ffc322ad460 RCX: 00007fa9a83dc700 [ 42.262114][ T1081] RDX: 0000000000000034 RSI: 00007fa9a8249270 RDI: 0000000000000005 [ 42.262355][ T1081] RBP: 00007fa9a8249010 R08: 0000000000000000 R09: 0000000000000000 [ 42.262595][ T1081] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000201c92f0 [ 42.262835][ T1081] R13: 00007fa9a8249010 R14: 00000000201c9310 R15: 00007fa9a84d7000 [ 42.263090][ T1081]