[ 4189.184649][ T6989] netdevsim netdevsim724 eni724np1: renamed from eth1 [ 4189.187665][ T6988] netdevsim netdevsim403 eni403np1: renamed from eth0 [ 4191.195372][ T7016] [ 4191.195641][ T7016] ============================= [ 4191.196043][ T7016] WARNING: suspicious RCU usage [ 4191.196224][ T7016] 6.12.0-rc6-virtme #1 Not tainted [ 4191.196427][ T7016] ----------------------------- [ 4191.196604][ T7016] net/core/dev.c:6300 RCU-list traversed in non-reader section!! [ 4191.196878][ T7016] [ 4191.196878][ T7016] other info that might help us debug this: [ 4191.196878][ T7016] [ 4191.197226][ T7016] [ 4191.197226][ T7016] rcu_scheduler_active = 2, debug_locks = 1 [ 4191.197488][ T7016] 2 locks held by busy_poller/7016: [ 4191.197666][ T7016] #0: ffffffff976594b0 (cb_lock){++++}-{3:3}, at: genl_rcv+0x19/0x40 [ 4191.198266][ T7016] #1: ffffffff97602388 (rtnl_mutex){+.+.}-{3:3}, at: netdev_nl_napi_set_doit+0xe4/0x640 [ 4191.198590][ T7016] [ 4191.198590][ T7016] stack backtrace: [ 4191.198831][ T7016] CPU: 0 UID: 0 PID: 7016 Comm: busy_poller Not tainted 6.12.0-rc6-virtme #1 [ 4191.199135][ T7016] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 4191.199348][ T7016] Call Trace: [ 4191.199483][ T7016] [ 4191.199586][ T7016] dump_stack_lvl+0xb0/0xd0 [ 4191.199778][ T7016] lockdep_rcu_suspicious+0x1ea/0x280 [ 4191.199970][ T7016] napi_by_id+0x134/0x170 [ 4191.200110][ T7016] netdev_nl_napi_set_doit+0xeb/0x640 [ 4191.200293][ T7016] ? __pfx_netdev_nl_napi_set_doit+0x10/0x10 [ 4191.200514][ T7016] ? __nla_parse+0x26/0x30 [ 4191.200697][ T7016] ? genl_family_rcv_msg_attrs_parse.constprop.0+0x162/0x240 [ 4191.200957][ T7016] genl_family_rcv_msg_doit+0x1d4/0x2b0 [ 4191.201145][ T7016] ? __pfx_genl_family_rcv_msg_doit+0x10/0x10 [ 4191.201357][ T7016] ? __pfx___lock_release+0x10/0x10 [ 4191.201528][ T7016] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 4191.201713][ T7016] ? validate_chain+0x1fe/0xae0 [ 4191.201895][ T7016] genl_family_rcv_msg+0x347/0x5b0 [ 4191.202068][ T7016] ? __pfx_genl_family_rcv_msg+0x10/0x10 [ 4191.202253][ T7016] ? __pfx_netdev_nl_napi_set_doit+0x10/0x10 [ 4191.202477][ T7016] genl_rcv_msg+0xa3/0x140 [ 4191.202651][ T7016] netlink_rcv_skb+0x130/0x360 [ 4191.202822][ T7016] ? __pfx_genl_rcv_msg+0x10/0x10 [ 4191.203003][ T7016] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 4191.203196][ T7016] ? genl_rcv+0x19/0x40 [ 4191.203331][ T7016] ? __pfx_down_read+0x10/0x10 [ 4191.203530][ T7016] ? netlink_deliver_tap+0x13e/0x340 [ 4191.203743][ T7016] genl_rcv+0x28/0x40 [ 4191.203879][ T7016] netlink_unicast+0x44b/0x710 [ 4191.204061][ T7016] ? __pfx_netlink_unicast+0x10/0x10 [ 4191.204245][ T7016] ? __wake_up+0x44/0x60 [ 4191.204388][ T7016] netlink_sendmsg+0x723/0xbe0 [ 4191.204575][ T7016] ? __pfx_netlink_sendmsg+0x10/0x10 [ 4191.204776][ T7016] ? fdget+0x52/0x1e0 [ 4191.204957][ T7016] __sys_sendto+0x377/0x400 [ 4191.205137][ T7016] ? __pfx___sys_sendto+0x10/0x10 [ 4191.205322][ T7016] ? do_user_addr_fault+0x972/0xe30 [ 4191.205503][ T7016] ? __pfx___lock_release+0x10/0x10 [ 4191.205673][ T7016] ? __up_read+0x1a7/0x780 [ 4191.205849][ T7016] ? trace_lock_acquire+0x14d/0x1f0 [ 4191.206041][ T7016] ? __pfx___up_read+0x10/0x10 [ 4191.206214][ T7016] ? do_user_addr_fault+0x972/0xe30 [ 4191.206387][ T7016] ? do_user_addr_fault+0x97c/0xe30 [ 4191.206567][ T7016] __x64_sys_sendto+0xe0/0x1c0 [ 4191.206742][ T7016] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 4191.206956][ T7016] do_syscall_64+0xc1/0x1d0 [ 4191.207138][ T7016] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 4191.207361][ T7016] RIP: 0033:0x7f043f596700 [ 4191.207547][ T7016] 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 [ 4191.208318][ T7016] RSP: 002b:00007fffff27e698 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 4191.208663][ T7016] RAX: ffffffffffffffda RBX: 00007fffff27e6b0 RCX: 00007f043f596700 [ 4191.209008][ T7016] RDX: 0000000000000034 RSI: 00007f043f403270 RDI: 0000000000000005 [ 4191.209271][ T7016] RBP: 00007f043f403010 R08: 0000000000000000 R09: 0000000000000000 [ 4191.209528][ T7016] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000330992f0 [ 4191.209784][ T7016] R13: 00007f043f403010 R14: 0000000033099310 R15: 00007f043f691000 [ 4191.210058][ T7016]