[ 4207.292230][ T4136] netdevsim netdevsim573 eni573np1: renamed from eth1 [ 4207.388884][ T4134] netdevsim netdevsim452 eni452np1: renamed from eth0 [ 4209.393953][ T4163] [ 4209.394088][ T4163] ============================= [ 4209.394257][ T4163] WARNING: suspicious RCU usage [ 4209.394459][ T4163] 6.12.0-rc6-virtme #1 Not tainted [ 4209.394624][ T4163] ----------------------------- [ 4209.395230][ T4163] net/core/dev.c:6300 RCU-list traversed in non-reader section!! [ 4209.395488][ T4163] [ 4209.395488][ T4163] other info that might help us debug this: [ 4209.395488][ T4163] [ 4209.395801][ T4163] [ 4209.395801][ T4163] rcu_scheduler_active = 2, debug_locks = 1 [ 4209.396048][ T4163] 2 locks held by busy_poller/4163: [ 4209.396215][ T4163] #0: ffffffffba8594b0 (cb_lock){++++}-{3:3}, at: genl_rcv+0x19/0x40 [ 4209.396497][ T4163] #1: ffffffffba802388 (rtnl_mutex){+.+.}-{3:3}, at: netdev_nl_napi_set_doit+0xe4/0x640 [ 4209.396808][ T4163] [ 4209.396808][ T4163] stack backtrace: [ 4209.397023][ T4163] CPU: 0 UID: 0 PID: 4163 Comm: busy_poller Not tainted 6.12.0-rc6-virtme #1 [ 4209.397320][ T4163] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 4209.397535][ T4163] Call Trace: [ 4209.397662][ T4163] [ 4209.397760][ T4163] dump_stack_lvl+0xb0/0xd0 [ 4209.397944][ T4163] lockdep_rcu_suspicious+0x1ea/0x280 [ 4209.398122][ T4163] napi_by_id+0x134/0x170 [ 4209.398253][ T4163] netdev_nl_napi_set_doit+0xeb/0x640 [ 4209.398414][ T4163] ? __pfx_netdev_nl_napi_set_doit+0x10/0x10 [ 4209.398622][ T4163] ? __nla_parse+0x26/0x30 [ 4209.398796][ T4163] ? genl_family_rcv_msg_attrs_parse.constprop.0+0x162/0x240 [ 4209.399040][ T4163] genl_family_rcv_msg_doit+0x1d4/0x2b0 [ 4209.399211][ T4163] ? __pfx_genl_family_rcv_msg_doit+0x10/0x10 [ 4209.399418][ T4163] ? __pfx___lock_release+0x10/0x10 [ 4209.399585][ T4163] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 4209.399760][ T4163] ? validate_chain+0x1fe/0xae0 [ 4209.399935][ T4163] genl_family_rcv_msg+0x347/0x5b0 [ 4209.400108][ T4163] ? __pfx_genl_family_rcv_msg+0x10/0x10 [ 4209.400276][ T4163] ? __pfx_netdev_nl_napi_set_doit+0x10/0x10 [ 4209.400494][ T4163] genl_rcv_msg+0xa3/0x140 [ 4209.400662][ T4163] netlink_rcv_skb+0x130/0x360 [ 4209.400829][ T4163] ? __pfx_genl_rcv_msg+0x10/0x10 [ 4209.400999][ T4163] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 4209.401173][ T4163] ? genl_rcv+0x19/0x40 [ 4209.401304][ T4163] ? __pfx_down_read+0x10/0x10 [ 4209.401476][ T4163] ? netlink_deliver_tap+0x13e/0x340 [ 4209.401647][ T4163] genl_rcv+0x28/0x40 [ 4209.401773][ T4163] netlink_unicast+0x44b/0x710 [ 4209.401943][ T4163] ? __pfx_netlink_unicast+0x10/0x10 [ 4209.402112][ T4163] ? __wake_up+0x44/0x60 [ 4209.402247][ T4163] netlink_sendmsg+0x723/0xbe0 [ 4209.402418][ T4163] ? __pfx_netlink_sendmsg+0x10/0x10 [ 4209.402589][ T4163] ? fdget+0x52/0x1e0 [ 4209.402731][ T4163] __sys_sendto+0x377/0x400 [ 4209.402902][ T4163] ? __pfx___sys_sendto+0x10/0x10 [ 4209.403083][ T4163] ? do_user_addr_fault+0x972/0xe30 [ 4209.403261][ T4163] ? __pfx___lock_release+0x10/0x10 [ 4209.403426][ T4163] ? __up_read+0x1a7/0x780 [ 4209.403594][ T4163] ? trace_lock_acquire+0x14d/0x1f0 [ 4209.403760][ T4163] ? __pfx___up_read+0x10/0x10 [ 4209.403931][ T4163] ? do_user_addr_fault+0x972/0xe30 [ 4209.404100][ T4163] ? do_user_addr_fault+0x97c/0xe30 [ 4209.404268][ T4163] __x64_sys_sendto+0xe0/0x1c0 [ 4209.404432][ T4163] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 4209.404636][ T4163] do_syscall_64+0xc1/0x1d0 [ 4209.404805][ T4163] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 4209.405006][ T4163] RIP: 0033:0x7ff4c0857700 [ 4209.405176][ T4163] 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 [ 4209.405741][ T4163] RSP: 002b:00007ffcaeb61618 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 4209.405990][ T4163] RAX: ffffffffffffffda RBX: 00007ffcaeb61630 RCX: 00007ff4c0857700 [ 4209.406240][ T4163] RDX: 0000000000000034 RSI: 00007ff4c06c4270 RDI: 0000000000000005 [ 4209.406479][ T4163] RBP: 00007ff4c06c4010 R08: 0000000000000000 R09: 0000000000000000 [ 4209.406722][ T4163] R10: 0000000000000000 R11: 0000000000000246 R12: 000000001273b2f0 [ 4209.406968][ T4163] R13: 00007ff4c06c4010 R14: 000000001273b310 R15: 00007ff4c0952000 [ 4209.407223][ T4163]