[ 4339.663034][ T8723] netdevsim netdevsim714 eni714np1: renamed from eth1 [ 4339.768980][ T8721] netdevsim netdevsim331 eni331np1: renamed from eth0 [ 4341.766969][ T8750] [ 4341.767129][ T8750] ============================= [ 4341.767311][ T8750] WARNING: suspicious RCU usage [ 4341.767558][ T8750] 6.12.0-rc6-virtme #1 Not tainted [ 4341.767737][ T8750] ----------------------------- [ 4341.767913][ T8750] net/core/dev.c:6300 RCU-list traversed in non-reader section!! [ 4341.768167][ T8750] [ 4341.768167][ T8750] other info that might help us debug this: [ 4341.768167][ T8750] [ 4341.768497][ T8750] [ 4341.768497][ T8750] rcu_scheduler_active = 2, debug_locks = 1 [ 4341.768771][ T8750] 2 locks held by busy_poller/8750: [ 4341.768952][ T8750] #0: ffffffff96a59f30 (cb_lock){++++}-{3:3}, at: genl_rcv+0x19/0x40 [ 4341.769236][ T8750] #1: ffffffff96a02648 (rtnl_mutex){+.+.}-{3:3}, at: netdev_nl_napi_set_doit+0xe4/0x640 [ 4341.769927][ T8750] [ 4341.769927][ T8750] stack backtrace: [ 4341.770146][ T8750] CPU: 2 UID: 0 PID: 8750 Comm: busy_poller Not tainted 6.12.0-rc6-virtme #1 [ 4341.770430][ T8750] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 4341.770637][ T8750] Call Trace: [ 4341.770769][ T8750] [ 4341.770861][ T8750] dump_stack_lvl+0xb0/0xd0 [ 4341.771032][ T8750] lockdep_rcu_suspicious+0x1ea/0x280 [ 4341.771199][ T8750] napi_by_id+0x134/0x170 [ 4341.771333][ T8750] netdev_nl_napi_set_doit+0xeb/0x640 [ 4341.771497][ T8750] ? __pfx_netdev_nl_napi_set_doit+0x10/0x10 [ 4341.771703][ T8750] ? __nla_parse+0x26/0x30 [ 4341.771868][ T8750] ? genl_family_rcv_msg_attrs_parse.constprop.0+0x162/0x240 [ 4341.772112][ T8750] genl_family_rcv_msg_doit+0x1d4/0x2b0 [ 4341.772275][ T8750] ? __pfx_genl_family_rcv_msg_doit+0x10/0x10 [ 4341.772478][ T8750] ? __pfx___lock_release+0x10/0x10 [ 4341.772644][ T8750] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 4341.772823][ T8750] ? validate_chain+0x1fe/0xae0 [ 4341.772997][ T8750] genl_family_rcv_msg+0x347/0x5b0 [ 4341.773164][ T8750] ? __pfx_genl_family_rcv_msg+0x10/0x10 [ 4341.773331][ T8750] ? __pfx_netdev_nl_napi_set_doit+0x10/0x10 [ 4341.773545][ T8750] genl_rcv_msg+0xa3/0x140 [ 4341.773712][ T8750] netlink_rcv_skb+0x130/0x360 [ 4341.773873][ T8750] ? __pfx_genl_rcv_msg+0x10/0x10 [ 4341.774044][ T8750] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 4341.774224][ T8750] ? genl_rcv+0x19/0x40 [ 4341.774350][ T8750] ? __pfx_down_read+0x10/0x10 [ 4341.774520][ T8750] ? netlink_deliver_tap+0x13e/0x340 [ 4341.774689][ T8750] genl_rcv+0x28/0x40 [ 4341.774812][ T8750] netlink_unicast+0x44b/0x710 [ 4341.774979][ T8750] ? __pfx_netlink_unicast+0x10/0x10 [ 4341.775146][ T8750] ? __wake_up+0x44/0x60 [ 4341.775275][ T8750] netlink_sendmsg+0x723/0xbe0 [ 4341.775448][ T8750] ? __pfx_netlink_sendmsg+0x10/0x10 [ 4341.775617][ T8750] ? fdget+0x52/0x1e0 [ 4341.775752][ T8750] __sys_sendto+0x377/0x400 [ 4341.775918][ T8750] ? __pfx___sys_sendto+0x10/0x10 [ 4341.776095][ T8750] ? do_user_addr_fault+0x972/0xe30 [ 4341.776258][ T8750] ? __pfx___lock_release+0x10/0x10 [ 4341.776421][ T8750] ? __up_read+0x1a7/0x780 [ 4341.776585][ T8750] ? trace_lock_acquire+0x14d/0x1f0 [ 4341.776760][ T8750] ? __pfx___up_read+0x10/0x10 [ 4341.776927][ T8750] ? do_user_addr_fault+0x972/0xe30 [ 4341.777101][ T8750] ? do_user_addr_fault+0x97c/0xe30 [ 4341.777269][ T8750] __x64_sys_sendto+0xe0/0x1c0 [ 4341.777433][ T8750] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 4341.777633][ T8750] do_syscall_64+0xc1/0x1d0 [ 4341.777801][ T8750] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 4341.778003][ T8750] RIP: 0033:0x7f40f891b700 [ 4341.778178][ T8750] 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 [ 4341.778739][ T8750] RSP: 002b:00007ffec5f85208 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 4341.778985][ T8750] RAX: ffffffffffffffda RBX: 00007ffec5f85220 RCX: 00007f40f891b700 [ 4341.779232][ T8750] RDX: 0000000000000034 RSI: 00007f40f8788270 RDI: 0000000000000005 [ 4341.779470][ T8750] RBP: 00007f40f8788010 R08: 0000000000000000 R09: 0000000000000000 [ 4341.779712][ T8750] R10: 0000000000000000 R11: 0000000000000246 R12: 000000001c08d2f0 [ 4341.779952][ T8750] R13: 00007f40f8788010 R14: 000000001c08d310 R15: 00007f40f8a16000 [ 4341.780208][ T8750]