[ 35.581514][ T815] netdevsim netdevsim439 eni439np1: renamed from eth0 [ 35.668958][ T814] netdevsim netdevsim624 eni624np1: renamed from eth1 [ 37.499158][ T842] [ 37.499375][ T842] ============================= [ 37.499543][ T842] WARNING: suspicious RCU usage [ 37.499704][ T842] 6.12.0-rc6-virtme #1 Not tainted [ 37.499868][ T842] ----------------------------- [ 37.500044][ T842] net/core/dev.c:6300 RCU-list traversed in non-reader section!! [ 37.500404][ T842] [ 37.500404][ T842] other info that might help us debug this: [ 37.500404][ T842] [ 37.500731][ T842] [ 37.500731][ T842] rcu_scheduler_active = 2, debug_locks = 1 [ 37.500981][ T842] 2 locks held by busy_poller/842: [ 37.501146][ T842] #0: ffffffff97059570 (cb_lock){++++}-{3:3}, at: genl_rcv+0x19/0x40 [ 37.501410][ T842] #1: ffffffff97002388 (rtnl_mutex){+.+.}-{3:3}, at: netdev_nl_napi_set_doit+0xe4/0x640 [ 37.501701][ T842] [ 37.501701][ T842] stack backtrace: [ 37.501923][ T842] CPU: 0 UID: 0 PID: 842 Comm: busy_poller Not tainted 6.12.0-rc6-virtme #1 [ 37.502205][ T842] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 37.502407][ T842] Call Trace: [ 37.502540][ T842] [ 37.502627][ T842] dump_stack_lvl+0xb0/0xd0 [ 37.502795][ T842] lockdep_rcu_suspicious+0x1ea/0x280 [ 37.502964][ T842] napi_by_id+0x134/0x170 [ 37.503094][ T842] netdev_nl_napi_set_doit+0xeb/0x640 [ 37.503261][ T842] ? __pfx_netdev_nl_napi_set_doit+0x10/0x10 [ 37.503465][ T842] ? __nla_parse+0x26/0x30 [ 37.503624][ T842] ? genl_family_rcv_msg_attrs_parse.constprop.0+0x162/0x240 [ 37.503867][ T842] genl_family_rcv_msg_doit+0x1d4/0x2b0 [ 37.504032][ T842] ? __pfx_genl_family_rcv_msg_doit+0x10/0x10 [ 37.504226][ T842] ? __pfx___lock_release+0x10/0x10 [ 37.504390][ T842] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 37.504560][ T842] ? validate_chain+0x1fe/0xae0 [ 37.504737][ T842] genl_family_rcv_msg+0x347/0x5b0 [ 37.504904][ T842] ? __pfx_genl_family_rcv_msg+0x10/0x10 [ 37.505073][ T842] ? __pfx_netdev_nl_napi_set_doit+0x10/0x10 [ 37.505290][ T842] genl_rcv_msg+0xa3/0x140 [ 37.505456][ T842] netlink_rcv_skb+0x130/0x360 [ 37.505614][ T842] ? __pfx_genl_rcv_msg+0x10/0x10 [ 37.505783][ T842] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 37.505959][ T842] ? genl_rcv+0x19/0x40 [ 37.506082][ T842] ? __pfx_down_read+0x10/0x10 [ 37.506247][ T842] ? netlink_deliver_tap+0x13e/0x340 [ 37.506417][ T842] genl_rcv+0x28/0x40 [ 37.506539][ T842] netlink_unicast+0x44b/0x710 [ 37.506706][ T842] ? __pfx_netlink_unicast+0x10/0x10 [ 37.506871][ T842] ? __wake_up+0x44/0x60 [ 37.507000][ T842] netlink_sendmsg+0x723/0xbe0 [ 37.507166][ T842] ? __pfx_netlink_sendmsg+0x10/0x10 [ 37.507331][ T842] ? fdget+0x52/0x1e0 [ 37.507463][ T842] __sys_sendto+0x377/0x400 [ 37.507627][ T842] ? __pfx___sys_sendto+0x10/0x10 [ 37.507801][ T842] ? do_user_addr_fault+0x972/0xe30 [ 37.507963][ T842] ? __pfx___lock_release+0x10/0x10 [ 37.508121][ T842] ? __up_read+0x1a7/0x780 [ 37.508289][ T842] ? trace_lock_acquire+0x14d/0x1f0 [ 37.508452][ T842] ? __pfx___up_read+0x10/0x10 [ 37.508621][ T842] ? do_user_addr_fault+0x972/0xe30 [ 37.508785][ T842] ? do_user_addr_fault+0x97c/0xe30 [ 37.508952][ T842] __x64_sys_sendto+0xe0/0x1c0 [ 37.509114][ T842] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 37.509312][ T842] do_syscall_64+0xc1/0x1d0 [ 37.509476][ T842] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 37.509680][ T842] RIP: 0033:0x7fa743882700 [ 37.509851][ T842] 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 [ 37.510415][ T842] RSP: 002b:00007ffc8d648fd8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 37.510659][ T842] RAX: ffffffffffffffda RBX: 00007ffc8d648ff0 RCX: 00007fa743882700 [ 37.510897][ T842] RDX: 0000000000000034 RSI: 00007fa7436ef270 RDI: 0000000000000005 [ 37.511139][ T842] RBP: 00007fa7436ef010 R08: 0000000000000000 R09: 0000000000000000 [ 37.511380][ T842] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000282d22f0 [ 37.511621][ T842] R13: 00007fa7436ef010 R14: 00000000282d2310 R15: 00007fa74397d000 [ 37.511881][ T842]