[ 4203.332236][ T1229] netdevsim netdevsim554 eni554np1: renamed from eth1 [ 4203.434268][ T1227] netdevsim netdevsim499 eni499np1: renamed from eth0 [ 4205.512545][ T1256] [ 4205.512906][ T1256] ============================= [ 4205.513096][ T1256] WARNING: suspicious RCU usage [ 4205.513281][ T1256] 6.12.0-rc6-virtme #1 Not tainted [ 4205.513465][ T1256] ----------------------------- [ 4205.513653][ T1256] net/core/dev.c:6300 RCU-list traversed in non-reader section!! [ 4205.513942][ T1256] [ 4205.513942][ T1256] other info that might help us debug this: [ 4205.513942][ T1256] [ 4205.514282][ T1256] [ 4205.514282][ T1256] rcu_scheduler_active = 2, debug_locks = 1 [ 4205.515122][ T1256] 2 locks held by busy_poller/1256: [ 4205.515439][ T1256] #0: ffffffff97a594b0 (cb_lock){++++}-{3:3}, at: genl_rcv+0x19/0x40 [ 4205.515814][ T1256] #1: ffffffff97a02388 (rtnl_mutex){+.+.}-{3:3}, at: netdev_nl_napi_set_doit+0xe4/0x640 [ 4205.516152][ T1256] [ 4205.516152][ T1256] stack backtrace: [ 4205.516371][ T1256] CPU: 2 UID: 0 PID: 1256 Comm: busy_poller Not tainted 6.12.0-rc6-virtme #1 [ 4205.516656][ T1256] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 4205.516860][ T1256] Call Trace: [ 4205.516987][ T1256] [ 4205.517079][ T1256] dump_stack_lvl+0xb0/0xd0 [ 4205.517259][ T1256] lockdep_rcu_suspicious+0x1ea/0x280 [ 4205.517434][ T1256] napi_by_id+0x134/0x170 [ 4205.517566][ T1256] netdev_nl_napi_set_doit+0xeb/0x640 [ 4205.517730][ T1256] ? __pfx_netdev_nl_napi_set_doit+0x10/0x10 [ 4205.517933][ T1256] ? __nla_parse+0x26/0x30 [ 4205.518103][ T1256] ? genl_family_rcv_msg_attrs_parse.constprop.0+0x162/0x240 [ 4205.518350][ T1256] genl_family_rcv_msg_doit+0x1d4/0x2b0 [ 4205.518513][ T1256] ? __pfx_genl_family_rcv_msg_doit+0x10/0x10 [ 4205.518721][ T1256] ? __pfx___lock_release+0x10/0x10 [ 4205.518885][ T1256] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 4205.519053][ T1256] ? validate_chain+0x1fe/0xae0 [ 4205.519225][ T1256] genl_family_rcv_msg+0x347/0x5b0 [ 4205.519393][ T1256] ? __pfx_genl_family_rcv_msg+0x10/0x10 [ 4205.519571][ T1256] ? __pfx_netdev_nl_napi_set_doit+0x10/0x10 [ 4205.519786][ T1256] genl_rcv_msg+0xa3/0x140 [ 4205.519955][ T1256] netlink_rcv_skb+0x130/0x360 [ 4205.520125][ T1256] ? __pfx_genl_rcv_msg+0x10/0x10 [ 4205.520296][ T1256] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 4205.520471][ T1256] ? genl_rcv+0x19/0x40 [ 4205.520595][ T1256] ? __pfx_down_read+0x10/0x10 [ 4205.520763][ T1256] ? netlink_deliver_tap+0x13e/0x340 [ 4205.520939][ T1256] genl_rcv+0x28/0x40 [ 4205.521064][ T1256] netlink_unicast+0x44b/0x710 [ 4205.521233][ T1256] ? __pfx_netlink_unicast+0x10/0x10 [ 4205.521402][ T1256] ? __wake_up+0x44/0x60 [ 4205.521531][ T1256] netlink_sendmsg+0x723/0xbe0 [ 4205.521704][ T1256] ? __pfx_netlink_sendmsg+0x10/0x10 [ 4205.521871][ T1256] ? fdget+0x52/0x1e0 [ 4205.522007][ T1256] __sys_sendto+0x377/0x400 [ 4205.522174][ T1256] ? __pfx___sys_sendto+0x10/0x10 [ 4205.522356][ T1256] ? do_user_addr_fault+0x972/0xe30 [ 4205.522522][ T1256] ? __pfx___lock_release+0x10/0x10 [ 4205.522687][ T1256] ? __up_read+0x1a7/0x780 [ 4205.522855][ T1256] ? trace_lock_acquire+0x14d/0x1f0 [ 4205.523024][ T1256] ? __pfx___up_read+0x10/0x10 [ 4205.523197][ T1256] ? do_user_addr_fault+0x972/0xe30 [ 4205.523366][ T1256] ? do_user_addr_fault+0x97c/0xe30 [ 4205.523530][ T1256] __x64_sys_sendto+0xe0/0x1c0 [ 4205.523693][ T1256] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 4205.523893][ T1256] do_syscall_64+0xc1/0x1d0 [ 4205.524080][ T1256] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 4205.524290][ T1256] RIP: 0033:0x7fdf8beeb700 [ 4205.524466][ T1256] 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 [ 4205.525020][ T1256] RSP: 002b:00007ffdd925d6c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 4205.525267][ T1256] RAX: ffffffffffffffda RBX: 00007ffdd925d6e0 RCX: 00007fdf8beeb700 [ 4205.525512][ T1256] RDX: 0000000000000034 RSI: 00007fdf8bd58270 RDI: 0000000000000005 [ 4205.525752][ T1256] RBP: 00007fdf8bd58010 R08: 0000000000000000 R09: 0000000000000000 [ 4205.525993][ T1256] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000025e122f0 [ 4205.526235][ T1256] R13: 00007fdf8bd58010 R14: 0000000025e12310 R15: 00007fdf8bfe6000 [ 4205.526496][ T1256]