[ 36.927491][ T680] openvswitch: Open vSwitch switching datapath [ 40.889882][ T710] netlink: 'python3': attribute type 2 has an invalid length. [ 40.896942][ T710] arpping: entered promiscuous mode [ 44.033152][ T760] c0: entered promiscuous mode [ 47.086236][ T798] s0: entered promiscuous mode [ 52.224459][ T859] [ 52.224714][ T859] ============================= [ 52.224887][ T859] WARNING: suspicious RCU usage [ 52.225085][ T859] 6.14.0-rc6-virtme #1 Not tainted [ 52.225412][ T859] ----------------------------- [ 52.225576][ T859] ./include/net/net_namespace.h:418 suspicious rcu_dereference_check() usage! [ 52.225844][ T859] [ 52.225844][ T859] other info that might help us debug this: [ 52.225844][ T859] [ 52.226160][ T859] [ 52.226160][ T859] rcu_scheduler_active = 2, debug_locks = 1 [ 52.226394][ T859] 1 lock held by arping/859: [ 52.226556][ T859] #0: ffffffffacb6f640 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x1f5/0x18d0 [ 52.226914][ T859] [ 52.226914][ T859] stack backtrace: [ 52.227128][ T859] CPU: 2 UID: 0 PID: 859 Comm: arping Not tainted 6.14.0-rc6-virtme #1 [ 52.227133][ T859] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 52.227135][ T859] Call Trace: [ 52.227141][ T859] [ 52.227143][ T859] dump_stack_lvl+0xb0/0xd0 [ 52.227159][ T859] lockdep_rcu_suspicious+0x1ea/0x280 [ 52.227179][ T859] dev_hard_start_xmit+0x2fc/0x3f0 [ 52.227190][ T859] __dev_queue_xmit+0xfaa/0x18d0 [ 52.227194][ T859] ? _copy_from_iter+0x1d2/0x12e0 [ 52.227222][ T859] ? __pfx___dev_queue_xmit+0x10/0x10 [ 52.227226][ T859] ? packet_parse_headers+0x243/0x9d0 [ 52.227241][ T859] ? __pfx_sock_alloc_send_pskb+0x10/0x10 [ 52.227252][ T859] ? __pfx_packet_parse_headers+0x10/0x10 [ 52.227257][ T859] ? skb_copy_datagram_from_iter+0xe6/0x6e0 [ 52.227266][ T859] ? dev_get_by_index+0xb2/0x190 [ 52.227276][ T859] packet_snd+0xd0d/0x19c0 [ 52.227288][ T859] ? __lock_release+0x103/0x460 [ 52.227292][ T859] ? __might_fault+0x11b/0x170 [ 52.227305][ T859] ? __pfx_packet_snd+0x10/0x10 [ 52.227308][ T859] ? trace_lock_acquire+0x14c/0x1f0 [ 52.227311][ T859] ? __pfx___lock_release+0x10/0x10 [ 52.227317][ T859] ? lock_acquire+0x32/0xc0 [ 52.227323][ T859] ? __might_fault+0x11b/0x170 [ 52.227334][ T859] __sys_sendto+0x3c3/0x450 [ 52.227342][ T859] ? __pfx___sys_sendto+0x10/0x10 [ 52.227354][ T859] ? __lock_release+0x103/0x460 [ 52.227358][ T859] ? __pfx___lock_release+0x10/0x10 [ 52.227367][ T859] ? __pfx___up_read+0x10/0x10 [ 52.227373][ T859] ? do_user_addr_fault+0x374/0xe30 [ 52.227389][ T859] ? do_user_addr_fault+0x374/0xe30 [ 52.227397][ T859] __x64_sys_sendto+0xe0/0x1c0 [ 52.227401][ T859] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 52.227405][ T859] do_syscall_64+0xc1/0x1d0 [ 52.227417][ T859] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 52.227428][ T859] RIP: 0033:0x7f112f932a4a [ 52.227432][ T859] 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 [ 52.227435][ T859] RSP: 002b:00007ffd00891ba8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 52.227441][ T859] RAX: ffffffffffffffda RBX: 0000000000000100 RCX: 00007f112f932a4a [ 52.227443][ T859] RDX: 000000000000001c RSI: 00007ffd00891bc0 RDI: 0000000000000005 [ 52.227445][ T859] RBP: 00007ffd00891d10 R08: 00007ffd00893170 R09: 0000000000000014 [ 52.227447][ T859] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f112f7e0710 [ 52.227448][ T859] R13: 00000000004047b4 R14: 0000000000407de0 R15: 00007f112fa38000 [ 52.227465][ T859] [ 53.469204][ T862] s0 (unregistering): left promiscuous mode [ 53.559171][ T862] ip (862) used greatest stack depth: 24016 bytes left [ 53.908093][ T870] c0 (unregistering): left promiscuous mode [ 55.891876][ T876] arpping: left promiscuous mode [ 61.689626][ T920] netlink: 'python3': attribute type 2 has an invalid length. [ 61.695438][ T920] ct4: entered promiscuous mode [ 65.119384][ T971] c0: entered promiscuous mode [ 68.170933][ T1009] s0: entered promiscuous mode [ 95.756865][ T1164] s0 (unregistering): left promiscuous mode [ 96.139816][ T1172] c0 (unregistering): left promiscuous mode [ 98.092656][ T1178] ct4: left promiscuous mode [ 103.650849][ T1221] netlink: 'python3': attribute type 2 has an invalid length. [ 103.658428][ T1221] cv4: entered promiscuous mode [ 106.865813][ T1272] c0: entered promiscuous mode [ 109.881606][ T1310] s0: entered promiscuous mode [ 120.789996][ T1397] s0 (unregistering): left promiscuous mode [ 121.175814][ T1406] c0 (unregistering): left promiscuous mode [ 123.108860][ T1412] cv4: left promiscuous mode [ 128.824240][ T1456] netlink: 'python3': attribute type 2 has an invalid length. [ 128.829759][ T1456] nat4: entered promiscuous mode [ 129.592347][ T1483] ip (1483) used greatest stack depth: 23680 bytes left [ 132.036803][ T1506] c0: entered promiscuous mode [ 135.039018][ T1544] s0: entered promiscuous mode [ 160.918773][ T1684] s0 (unregistering): left promiscuous mode [ 161.403752][ T1692] c0 (unregistering): left promiscuous mode [ 163.410231][ T1699] nat4: left promiscuous mode [ 169.028626][ T1743] netlink: 'python3': attribute type 2 has an invalid length. [ 169.034156][ T1743] natrelated4: entered promiscuous mode [ 172.210888][ T1794] c0: entered promiscuous mode [ 175.186069][ T1832] s0: entered promiscuous mode [ 191.610534][ T1985] s0 (unregistering): left promiscuous mode [ 192.044029][ T1993] c0 (unregistering): left promiscuous mode [ 193.903192][ T1999] natrelated4: left promiscuous mode [ 199.374625][ T2043] netlink: 'python3': attribute type 2 has an invalid length. [ 199.380093][ T2043] nv0: entered promiscuous mode [ 201.391867][ T2067] netlink: 'python3': attribute type 2 has an invalid length. [ 201.393184][ T2067] openvswitch: nv0: Dropping previously announced user features [ 204.487482][ T2116] left0: entered promiscuous mode [ 207.453416][ T2154] right0: entered promiscuous mode [ 211.110727][ T2186] right0: left promiscuous mode [ 214.872403][ T2222] openvswitch: netlink: Flow actions may not be safe on all matching packets. [ 214.987986][ T2222] python3 (2222) used greatest stack depth: 22896 bytes left [ 216.905675][ T2245] openvswitch: netlink: Flow actions may not be safe on all matching packets. [ 217.777999][ T2272] left0 (unregistering): left promiscuous mode [ 219.683495][ T2278] nv0: left promiscuous mode [ 226.963436][ T2337] ui0: entered promiscuous mode [ 230.224212][ T2387] left0: entered promiscuous mode [ 232.694683][ T2418] left0 (unregistering): left promiscuous mode [ 234.590547][ T2426] ui0: left promiscuous mode [ 240.604208][ T2475] netlink: 'python3': attribute type 2 has an invalid length. [ 240.610672][ T2475] dropreason: entered promiscuous mode [ 243.703059][ T2526] c0: entered promiscuous mode [ 246.700630][ T2564] s0: entered promiscuous mode [ 288.057793][ T2735] s0 (unregistering): left promiscuous mode [ 288.497728][ T2743] c0 (unregistering): left promiscuous mode [ 291.267319][ T2749] dropreason: left promiscuous mode [ 296.780426][ T2792] psample: entered promiscuous mode [ 300.411106][ T2844] c0: entered promiscuous mode [ 301.745853][ T2875] s0: entered promiscuous mode [ 305.688158][ T2938] openvswitch: netlink: Flow actions may not be safe on all matching packets. [ 307.789578][ T2961] openvswitch: netlink: Flow actions may not be safe on all matching packets. [ 309.930782][ T2984] openvswitch: netlink: Flow actions may not be safe on all matching packets. [ 323.381942][ T3127] s0 (unregistering): left promiscuous mode [ 323.897853][ T3137] c0 (unregistering): left promiscuous mode [ 325.867231][ T3143] psample: left promiscuous mode