[ 4239.201331][ T1615] netdevsim netdevsim582 eni582np1: renamed from eth1 [ 4239.203378][ T1613] netdevsim netdevsim464 eni464np1: renamed from eth0 [ 4241.190429][ T1642] [ 4241.190584][ T1642] ============================= [ 4241.190763][ T1642] WARNING: suspicious RCU usage [ 4241.190933][ T1642] 6.12.0-rc6-virtme #1 Not tainted [ 4241.191104][ T1642] ----------------------------- [ 4241.191650][ T1642] net/core/dev.c:6300 RCU-list traversed in non-reader section!! [ 4241.191894][ T1642] [ 4241.191894][ T1642] other info that might help us debug this: [ 4241.191894][ T1642] [ 4241.192310][ T1642] [ 4241.192310][ T1642] rcu_scheduler_active = 2, debug_locks = 1 [ 4241.192550][ T1642] 2 locks held by busy_poller/1642: [ 4241.192716][ T1642] #0: ffffffffbc259770 (cb_lock){++++}-{3:3}, at: genl_rcv+0x19/0x40 [ 4241.192979][ T1642] #1: ffffffffbc202408 (rtnl_mutex){+.+.}-{3:3}, at: netdev_nl_napi_set_doit+0xe4/0x640 [ 4241.193353][ T1642] [ 4241.193353][ T1642] stack backtrace: [ 4241.193554][ T1642] CPU: 1 UID: 0 PID: 1642 Comm: busy_poller Not tainted 6.12.0-rc6-virtme #1 [ 4241.193832][ T1642] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 4241.194035][ T1642] Call Trace: [ 4241.194159][ T1642] [ 4241.194246][ T1642] dump_stack_lvl+0xb0/0xd0 [ 4241.194417][ T1642] lockdep_rcu_suspicious+0x1ea/0x280 [ 4241.194587][ T1642] napi_by_id+0x134/0x170 [ 4241.194719][ T1642] netdev_nl_napi_set_doit+0xeb/0x640 [ 4241.194879][ T1642] ? __pfx_netdev_nl_napi_set_doit+0x10/0x10 [ 4241.195087][ T1642] ? __nla_parse+0x26/0x30 [ 4241.195249][ T1642] ? genl_family_rcv_msg_attrs_parse.constprop.0+0x162/0x240 [ 4241.195490][ T1642] genl_family_rcv_msg_doit+0x1d4/0x2b0 [ 4241.195652][ T1642] ? __pfx_genl_family_rcv_msg_doit+0x10/0x10 [ 4241.195852][ T1642] ? __pfx___lock_release+0x10/0x10 [ 4241.196017][ T1642] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 4241.196185][ T1642] ? validate_chain+0x1fe/0xae0 [ 4241.196356][ T1642] genl_family_rcv_msg+0x347/0x5b0 [ 4241.196519][ T1642] ? __pfx_genl_family_rcv_msg+0x10/0x10 [ 4241.196681][ T1642] ? __pfx_netdev_nl_napi_set_doit+0x10/0x10 [ 4241.196891][ T1642] genl_rcv_msg+0xa3/0x140 [ 4241.197056][ T1642] netlink_rcv_skb+0x130/0x360 [ 4241.197219][ T1642] ? __pfx_genl_rcv_msg+0x10/0x10 [ 4241.197388][ T1642] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 4241.197561][ T1642] ? genl_rcv+0x19/0x40 [ 4241.197685][ T1642] ? __pfx_down_read+0x10/0x10 [ 4241.197850][ T1642] ? netlink_deliver_tap+0x13e/0x340 [ 4241.198019][ T1642] genl_rcv+0x28/0x40 [ 4241.198141][ T1642] netlink_unicast+0x44b/0x710 [ 4241.198306][ T1642] ? __pfx_netlink_unicast+0x10/0x10 [ 4241.198467][ T1642] ? __wake_up+0x44/0x60 [ 4241.198605][ T1642] netlink_sendmsg+0x723/0xbe0 [ 4241.198773][ T1642] ? __pfx_netlink_sendmsg+0x10/0x10 [ 4241.198938][ T1642] ? fdget+0x52/0x1e0 [ 4241.199071][ T1642] __sys_sendto+0x377/0x400 [ 4241.199234][ T1642] ? __pfx___sys_sendto+0x10/0x10 [ 4241.199401][ T1642] ? __might_fault+0x11b/0x170 [ 4241.199580][ T1642] ? rseq_update_cpu_node_id+0xe6/0x140 [ 4241.199748][ T1642] ? __rseq_handle_notify_resume+0x288/0x3e0 [ 4241.199957][ T1642] ? __pfx___rseq_handle_notify_resume+0x10/0x10 [ 4241.200174][ T1642] __x64_sys_sendto+0xe0/0x1c0 [ 4241.200335][ T1642] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 4241.200534][ T1642] do_syscall_64+0xc1/0x1d0 [ 4241.200698][ T1642] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 4241.200900][ T1642] RIP: 0033:0x7f9e18986700 [ 4241.201069][ T1642] 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 [ 4241.201638][ T1642] RSP: 002b:00007ffe03a891a8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 4241.201885][ T1642] RAX: ffffffffffffffda RBX: 00007ffe03a891c0 RCX: 00007f9e18986700 [ 4241.202128][ T1642] RDX: 0000000000000034 RSI: 00007f9e187f3270 RDI: 0000000000000005 [ 4241.202367][ T1642] RBP: 00007f9e187f3010 R08: 0000000000000000 R09: 0000000000000000 [ 4241.202611][ T1642] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000035f1e2f0 [ 4241.202852][ T1642] R13: 00007f9e187f3010 R14: 0000000035f1e310 R15: 00007f9e18a81000 [ 4241.203106][ T1642]