[ 4368.132624][ T8708] netdevsim netdevsim465 eni465np1: renamed from eth0 [ 4368.235138][ T8709] netdevsim netdevsim553 eni553np1: renamed from eth1 [ 4370.551338][ T8736] [ 4370.551910][ T8736] ============================= [ 4370.552096][ T8736] WARNING: suspicious RCU usage [ 4370.552264][ T8736] 6.12.0-rc6-virtme #1 Not tainted [ 4370.552440][ T8736] ----------------------------- [ 4370.552608][ T8736] net/core/dev.c:6300 RCU-list traversed in non-reader section!! [ 4370.552870][ T8736] [ 4370.552870][ T8736] other info that might help us debug this: [ 4370.552870][ T8736] [ 4370.553204][ T8736] [ 4370.553204][ T8736] rcu_scheduler_active = 2, debug_locks = 1 [ 4370.553499][ T8736] 2 locks held by busy_poller/8736: [ 4370.553667][ T8736] #0: ffffffff98059db0 (cb_lock){++++}-{3:3}, at: genl_rcv+0x19/0x40 [ 4370.554609][ T8736] #1: ffffffff98002548 (rtnl_mutex){+.+.}-{3:3}, at: netdev_nl_napi_set_doit+0xe4/0x640 [ 4370.554917][ T8736] [ 4370.554917][ T8736] stack backtrace: [ 4370.555126][ T8736] CPU: 3 UID: 0 PID: 8736 Comm: busy_poller Not tainted 6.12.0-rc6-virtme #1 [ 4370.555422][ T8736] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 4370.555628][ T8736] Call Trace: [ 4370.555759][ T8736] <TASK> [ 4370.555849][ T8736] dump_stack_lvl+0xb0/0xd0 [ 4370.556032][ T8736] lockdep_rcu_suspicious+0x1ea/0x280 [ 4370.556206][ T8736] napi_by_id+0x134/0x170 [ 4370.556342][ T8736] netdev_nl_napi_set_doit+0xeb/0x640 [ 4370.556506][ T8736] ? __pfx_netdev_nl_napi_set_doit+0x10/0x10 [ 4370.556721][ T8736] ? __nla_parse+0x26/0x30 [ 4370.556899][ T8736] ? genl_family_rcv_msg_attrs_parse.constprop.0+0x162/0x240 [ 4370.557155][ T8736] genl_family_rcv_msg_doit+0x1d4/0x2b0 [ 4370.557319][ T8736] ? __pfx_genl_family_rcv_msg_doit+0x10/0x10 [ 4370.557523][ T8736] ? __pfx___lock_release+0x10/0x10 [ 4370.557683][ T8736] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 4370.557858][ T8736] ? validate_chain+0x1fe/0xae0 [ 4370.558033][ T8736] genl_family_rcv_msg+0x347/0x5b0 [ 4370.558203][ T8736] ? __pfx_genl_family_rcv_msg+0x10/0x10 [ 4370.558370][ T8736] ? __pfx_netdev_nl_napi_set_doit+0x10/0x10 [ 4370.558584][ T8736] genl_rcv_msg+0xa3/0x140 [ 4370.558752][ T8736] netlink_rcv_skb+0x130/0x360 [ 4370.558918][ T8736] ? __pfx_genl_rcv_msg+0x10/0x10 [ 4370.559087][ T8736] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 4370.559270][ T8736] ? genl_rcv+0x19/0x40 [ 4370.559395][ T8736] ? __pfx_down_read+0x10/0x10 [ 4370.559575][ T8736] ? netlink_deliver_tap+0x13e/0x340 [ 4370.559746][ T8736] genl_rcv+0x28/0x40 [ 4370.559874][ T8736] netlink_unicast+0x44b/0x710 [ 4370.560043][ T8736] ? __pfx_netlink_unicast+0x10/0x10 [ 4370.560210][ T8736] ? __wake_up+0x44/0x60 [ 4370.560345][ T8736] netlink_sendmsg+0x723/0xbe0 [ 4370.560514][ T8736] ? __pfx_netlink_sendmsg+0x10/0x10 [ 4370.560681][ T8736] ? fdget+0x52/0x1e0 [ 4370.560822][ T8736] __sys_sendto+0x377/0x400 [ 4370.560993][ T8736] ? __pfx___sys_sendto+0x10/0x10 [ 4370.561172][ T8736] ? do_user_addr_fault+0x972/0xe30 [ 4370.561339][ T8736] ? __pfx___lock_release+0x10/0x10 [ 4370.561501][ T8736] ? __up_read+0x1a7/0x780 [ 4370.561670][ T8736] ? trace_lock_acquire+0x14d/0x1f0 [ 4370.561836][ T8736] ? __pfx___up_read+0x10/0x10 [ 4370.562007][ T8736] ? do_user_addr_fault+0x972/0xe30 [ 4370.562189][ T8736] ? do_user_addr_fault+0x97c/0xe30 [ 4370.562357][ T8736] __x64_sys_sendto+0xe0/0x1c0 [ 4370.562529][ T8736] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 4370.562733][ T8736] do_syscall_64+0xc1/0x1d0 [ 4370.562904][ T8736] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 4370.563112][ T8736] RIP: 0033:0x7ffa57fd0700 [ 4370.563294][ T8736] 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 [ 4370.563869][ T8736] RSP: 002b:00007ffd2899ffd8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 4370.564123][ T8736] RAX: ffffffffffffffda RBX: 00007ffd2899fff0 RCX: 00007ffa57fd0700 [ 4370.564370][ T8736] RDX: 0000000000000034 RSI: 00007ffa57e3d270 RDI: 0000000000000005 [ 4370.564624][ T8736] RBP: 00007ffa57e3d010 R08: 0000000000000000 R09: 0000000000000000 [ 4370.564874][ T8736] R10: 0000000000000000 R11: 0000000000000246 R12: 000000003424f2f0 [ 4370.565114][ T8736] R13: 00007ffa57e3d010 R14: 000000003424f310 R15: 00007ffa580cb000 [ 4370.565386][ T8736] </TASK>