[ 11.231282][ T242] openvswitch: Open vSwitch switching datapath [ 15.511475][ T272] netlink: 'python3': attribute type 2 has an invalid length. [ 15.517985][ T272] arpping: entered promiscuous mode [ 16.278390][ T299] ip (299) used greatest stack depth: 23928 bytes left [ 18.774407][ T324] c0: entered promiscuous mode [ 19.361271][ T345] ip (345) used greatest stack depth: 22816 bytes left [ 21.904253][ T363] s0: entered promiscuous mode [ 27.257673][ T425] [ 27.257882][ T425] ============================= [ 27.258072][ T425] WARNING: suspicious RCU usage [ 27.258244][ T425] 6.14.0-rc6-virtme #1 Not tainted [ 27.258504][ T425] ----------------------------- [ 27.258673][ T425] ./include/net/net_namespace.h:418 suspicious rcu_dereference_check() usage! [ 27.258959][ T425] [ 27.258959][ T425] other info that might help us debug this: [ 27.258959][ T425] [ 27.259299][ T425] [ 27.259299][ T425] rcu_scheduler_active = 2, debug_locks = 1 [ 27.259548][ T425] 1 lock held by arping/425: [ 27.259718][ T425] #0: ffffffffaa16f640 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x1f5/0x18d0 [ 27.260049][ T425] [ 27.260049][ T425] stack backtrace: [ 27.260259][ T425] CPU: 0 UID: 0 PID: 425 Comm: arping Not tainted 6.14.0-rc6-virtme #1 [ 27.260263][ T425] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 27.260265][ T425] Call Trace: [ 27.260267][ T425] [ 27.260270][ T425] dump_stack_lvl+0xb0/0xd0 [ 27.260278][ T425] lockdep_rcu_suspicious+0x1ea/0x280 [ 27.260289][ T425] dev_hard_start_xmit+0x2fc/0x3f0 [ 27.260300][ T425] __dev_queue_xmit+0xfaa/0x18d0 [ 27.260304][ T425] ? _copy_from_iter+0x1d2/0x12e0 [ 27.260322][ T425] ? __pfx___dev_queue_xmit+0x10/0x10 [ 27.260326][ T425] ? packet_parse_headers+0x243/0x9d0 [ 27.260336][ T425] ? __pfx_sock_alloc_send_pskb+0x10/0x10 [ 27.260343][ T425] ? __pfx_packet_parse_headers+0x10/0x10 [ 27.260348][ T425] ? skb_copy_datagram_from_iter+0xe6/0x6e0 [ 27.260355][ T425] ? dev_get_by_index+0xb2/0x190 [ 27.260365][ T425] packet_snd+0xd0d/0x19c0 [ 27.260377][ T425] ? __lock_release+0x103/0x460 [ 27.260380][ T425] ? __might_fault+0x11b/0x170 [ 27.260386][ T425] ? __pfx_packet_snd+0x10/0x10 [ 27.260389][ T425] ? trace_lock_acquire+0x14c/0x1f0 [ 27.260392][ T425] ? __pfx___lock_release+0x10/0x10 [ 27.260398][ T425] ? lock_acquire+0x32/0xc0 [ 27.260404][ T425] ? __might_fault+0x11b/0x170 [ 27.260415][ T425] __sys_sendto+0x3c3/0x450 [ 27.260422][ T425] ? __pfx___sys_sendto+0x10/0x10 [ 27.260434][ T425] ? __lock_release+0x103/0x460 [ 27.260438][ T425] ? __pfx___lock_release+0x10/0x10 [ 27.260447][ T425] ? __pfx___up_read+0x10/0x10 [ 27.260453][ T425] ? do_user_addr_fault+0x374/0xe30 [ 27.260463][ T425] ? do_user_addr_fault+0x374/0xe30 [ 27.260471][ T425] __x64_sys_sendto+0xe0/0x1c0 [ 27.260475][ T425] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 27.260480][ T425] do_syscall_64+0xc1/0x1d0 [ 27.260486][ T425] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 27.260491][ T425] RIP: 0033:0x7f591b812a4a [ 27.260495][ T425] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb b8 0f 1f 00 f3 0f 1e fa 41 89 ca 64 8b 04 25 18 00 00 00 85 c0 75 15 b8 2c 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 7e c3 0f 1f 44 00 00 41 54 48 83 ec 30 44 89 [ 27.260498][ T425] RSP: 002b:00007ffd5b063a68 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 27.260502][ T425] RAX: ffffffffffffffda RBX: 0000000000000100 RCX: 00007f591b812a4a [ 27.260504][ T425] RDX: 000000000000001c RSI: 00007ffd5b063a80 RDI: 0000000000000005 [ 27.260506][ T425] RBP: 00007ffd5b063bd0 R08: 00007ffd5b065030 R09: 0000000000000014 [ 27.260507][ T425] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f591b6c0710 [ 27.260509][ T425] R13: 00000000004047b4 R14: 0000000000407de0 R15: 00007f591b918000 [ 27.260526][ T425] [ 28.500083][ T428] s0 (unregistering): left promiscuous mode [ 28.890808][ T436] c0 (unregistering): left promiscuous mode [ 30.884077][ T442] arpping: left promiscuous mode [ 36.672539][ T486] netlink: 'python3': attribute type 2 has an invalid length. [ 36.678116][ T486] ct4: entered promiscuous mode [ 39.974854][ T536] c0: entered promiscuous mode [ 43.085293][ T574] s0: entered promiscuous mode [ 71.419223][ T729] s0 (unregistering): left promiscuous mode [ 71.878091][ T737] c0 (unregistering): left promiscuous mode [ 74.041991][ T743] ct4: left promiscuous mode [ 79.931515][ T786] netlink: 'python3': attribute type 2 has an invalid length. [ 79.939413][ T786] cv4: entered promiscuous mode [ 83.246017][ T837] c0: entered promiscuous mode [ 86.423903][ T875] s0: entered promiscuous mode [ 97.587069][ T962] s0 (unregistering): left promiscuous mode [ 98.057935][ T970] c0 (unregistering): left promiscuous mode [ 100.120787][ T976] cv4: left promiscuous mode [ 106.093562][ T1020] netlink: 'python3': attribute type 2 has an invalid length. [ 106.099262][ T1020] nat4: entered promiscuous mode [ 109.505858][ T1070] c0: entered promiscuous mode [ 112.662730][ T1108] s0: entered promiscuous mode [ 139.162897][ T1249] s0 (unregistering): left promiscuous mode [ 139.616901][ T1257] c0 (unregistering): left promiscuous mode [ 141.737147][ T1263] nat4: left promiscuous mode [ 147.601824][ T1307] netlink: 'python3': attribute type 2 has an invalid length. [ 147.607661][ T1307] natrelated4: entered promiscuous mode [ 150.921549][ T1357] c0: entered promiscuous mode [ 154.076911][ T1396] s0: entered promiscuous mode [ 171.659984][ T1549] s0 (unregistering): left promiscuous mode [ 172.139047][ T1557] c0 (unregistering): left promiscuous mode [ 174.249785][ T1563] natrelated4: left promiscuous mode [ 180.088470][ T1607] netlink: 'python3': attribute type 2 has an invalid length. [ 180.094146][ T1607] nv0: entered promiscuous mode [ 182.308432][ T1631] netlink: 'python3': attribute type 2 has an invalid length. [ 182.309738][ T1631] openvswitch: nv0: Dropping previously announced user features [ 185.575598][ T1680] left0: entered promiscuous mode [ 188.753764][ T1719] right0: entered promiscuous mode [ 192.890830][ T1751] right0: left promiscuous mode [ 196.877506][ T1787] openvswitch: netlink: Flow actions may not be safe on all matching packets. [ 199.150546][ T1810] openvswitch: netlink: Flow actions may not be safe on all matching packets. [ 200.035858][ T1837] left0 (unregistering): left promiscuous mode [ 202.132402][ T1843] nv0: left promiscuous mode [ 209.961899][ T1902] ui0: entered promiscuous mode [ 213.516854][ T1953] left0: entered promiscuous mode [ 215.870318][ T1984] left0 (unregistering): left promiscuous mode [ 218.005344][ T1992] ui0: left promiscuous mode [ 224.531296][ T2041] netlink: 'python3': attribute type 2 has an invalid length. [ 224.537335][ T2041] dropreason: entered promiscuous mode [ 227.938310][ T2092] c0: entered promiscuous mode [ 231.155317][ T2130] s0: entered promiscuous mode [ 273.944016][ T2301] s0 (unregistering): left promiscuous mode [ 274.378090][ T2309] c0 (unregistering): left promiscuous mode [ 276.415463][ T2315] dropreason: left promiscuous mode [ 282.125460][ T2358] psample: entered promiscuous mode [ 286.088197][ T2409] c0: entered promiscuous mode [ 287.585824][ T2440] s0: entered promiscuous mode [ 291.714224][ T2503] openvswitch: netlink: Flow actions may not be safe on all matching packets. [ 293.959410][ T2526] openvswitch: netlink: Flow actions may not be safe on all matching packets. [ 296.249470][ T2549] openvswitch: netlink: Flow actions may not be safe on all matching packets. [ 311.191960][ T2692] s0 (unregistering): left promiscuous mode [ 311.701995][ T2702] c0 (unregistering): left promiscuous mode [ 313.780514][ T2708] psample: left promiscuous mode