[ 37.601738][ T708] openvswitch: Open vSwitch switching datapath [ 41.833576][ T736] netlink: 'python3': attribute type 2 has an invalid length. [ 41.840267][ T736] arpping: entered promiscuous mode [ 45.182283][ T787] c0: entered promiscuous mode [ 48.502253][ T825] s0: entered promiscuous mode [ 54.108352][ T886] [ 54.108613][ T886] ============================= [ 54.108784][ T886] WARNING: suspicious RCU usage [ 54.108949][ T886] 6.14.0-rc6-virtme #1 Not tainted [ 54.109127][ T886] ----------------------------- [ 54.109302][ T886] ./include/net/net_namespace.h:418 suspicious rcu_dereference_check() usage! [ 54.109589][ T886] [ 54.109589][ T886] other info that might help us debug this: [ 54.109589][ T886] [ 54.110109][ T886] [ 54.110109][ T886] rcu_scheduler_active = 2, debug_locks = 1 [ 54.110404][ T886] 1 lock held by arping/886: [ 54.110579][ T886] #0: ffffffffaff6f640 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x1f5/0x18d0 [ 54.110899][ T886] [ 54.110899][ T886] stack backtrace: [ 54.111120][ T886] CPU: 0 UID: 0 PID: 886 Comm: arping Not tainted 6.14.0-rc6-virtme #1 [ 54.111125][ T886] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 54.111127][ T886] Call Trace: [ 54.111129][ T886] [ 54.111132][ T886] dump_stack_lvl+0xb0/0xd0 [ 54.111142][ T886] lockdep_rcu_suspicious+0x1ea/0x280 [ 54.111155][ T886] dev_hard_start_xmit+0x2fc/0x3f0 [ 54.111166][ T886] __dev_queue_xmit+0xfaa/0x18d0 [ 54.111170][ T886] ? _copy_from_iter+0x1d2/0x12e0 [ 54.111190][ T886] ? __pfx___dev_queue_xmit+0x10/0x10 [ 54.111195][ T886] ? packet_parse_headers+0x243/0x9d0 [ 54.111207][ T886] ? __pfx_sock_alloc_send_pskb+0x10/0x10 [ 54.111215][ T886] ? __pfx_packet_parse_headers+0x10/0x10 [ 54.111219][ T886] ? skb_copy_datagram_from_iter+0xe6/0x6e0 [ 54.111227][ T886] ? dev_get_by_index+0xb2/0x190 [ 54.111238][ T886] packet_snd+0xd0d/0x19c0 [ 54.111250][ T886] ? __lock_release+0x103/0x460 [ 54.111253][ T886] ? __might_fault+0x11b/0x170 [ 54.111261][ T886] ? __pfx_packet_snd+0x10/0x10 [ 54.111263][ T886] ? trace_lock_acquire+0x14c/0x1f0 [ 54.111267][ T886] ? __pfx___lock_release+0x10/0x10 [ 54.111273][ T886] ? lock_acquire+0x32/0xc0 [ 54.111279][ T886] ? __might_fault+0x11b/0x170 [ 54.111290][ T886] __sys_sendto+0x3c3/0x450 [ 54.111297][ T886] ? __pfx___sys_sendto+0x10/0x10 [ 54.111309][ T886] ? __lock_release+0x103/0x460 [ 54.111314][ T886] ? __pfx___lock_release+0x10/0x10 [ 54.111322][ T886] ? __pfx___up_read+0x10/0x10 [ 54.111329][ T886] ? do_user_addr_fault+0x374/0xe30 [ 54.111340][ T886] ? do_user_addr_fault+0x374/0xe30 [ 54.111347][ T886] __x64_sys_sendto+0xe0/0x1c0 [ 54.111352][ T886] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 54.111357][ T886] do_syscall_64+0xc1/0x1d0 [ 54.111364][ T886] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 54.111370][ T886] RIP: 0033:0x7fe70ee88a4a [ 54.111375][ T886] 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 [ 54.111378][ T886] RSP: 002b:00007ffd25b4fe08 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 54.111381][ T886] RAX: ffffffffffffffda RBX: 0000000000000100 RCX: 00007fe70ee88a4a [ 54.111383][ T886] RDX: 000000000000001c RSI: 00007ffd25b4fe20 RDI: 0000000000000005 [ 54.111385][ T886] RBP: 00007ffd25b4ff70 R08: 00007ffd25b513d0 R09: 0000000000000014 [ 54.111387][ T886] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fe70ed36710 [ 54.111389][ T886] R13: 00000000004047b4 R14: 0000000000407de0 R15: 00007fe70ef8e000 [ 54.111406][ T886] [ 55.373148][ T889] s0 (unregistering): left promiscuous mode [ 55.802144][ T897] c0 (unregistering): left promiscuous mode [ 57.791938][ T903] arpping: left promiscuous mode [ 64.016037][ T947] netlink: 'python3': attribute type 2 has an invalid length. [ 64.023372][ T947] ct4: entered promiscuous mode [ 67.471712][ T997] c0: entered promiscuous mode [ 70.642013][ T1035] s0: entered promiscuous mode [ 98.856812][ T1190] s0 (unregistering): left promiscuous mode [ 99.279920][ T1198] c0 (unregistering): left promiscuous mode [ 101.353484][ T1204] ct4: left promiscuous mode [ 107.071444][ T1247] netlink: 'python3': attribute type 2 has an invalid length. [ 107.077223][ T1247] cv4: entered promiscuous mode [ 110.376905][ T1298] c0: entered promiscuous mode [ 113.520538][ T1336] s0: entered promiscuous mode [ 124.811565][ T1423] s0 (unregistering): left promiscuous mode [ 125.277822][ T1431] c0 (unregistering): left promiscuous mode [ 127.351344][ T1438] cv4: left promiscuous mode [ 133.111295][ T1482] netlink: 'python3': attribute type 2 has an invalid length. [ 133.118106][ T1482] nat4: entered promiscuous mode [ 136.381899][ T1533] c0: entered promiscuous mode [ 139.520729][ T1571] s0: entered promiscuous mode [ 165.836036][ T1711] s0 (unregistering): left promiscuous mode [ 166.282920][ T1719] c0 (unregistering): left promiscuous mode [ 168.326105][ T1725] nat4: left promiscuous mode [ 174.121414][ T1769] netlink: 'python3': attribute type 2 has an invalid length. [ 174.127149][ T1769] natrelated4: entered promiscuous mode [ 177.484963][ T1819] c0: entered promiscuous mode [ 180.646064][ T1857] s0: entered promiscuous mode [ 198.024836][ T2010] s0 (unregistering): left promiscuous mode [ 198.473888][ T2018] c0 (unregistering): left promiscuous mode [ 200.532152][ T2024] natrelated4: left promiscuous mode [ 206.440552][ T2068] netlink: 'python3': attribute type 2 has an invalid length. [ 206.447862][ T2068] nv0: entered promiscuous mode [ 208.670092][ T2092] netlink: 'python3': attribute type 2 has an invalid length. [ 208.671472][ T2092] openvswitch: nv0: Dropping previously announced user features [ 212.042599][ T2141] left0: entered promiscuous mode [ 215.223225][ T2179] right0: entered promiscuous mode [ 219.056765][ T2211] right0: left promiscuous mode [ 223.037579][ T2247] openvswitch: netlink: Flow actions may not be safe on all matching packets. [ 223.162044][ T2247] python3 (2247) used greatest stack depth: 22896 bytes left [ 225.177222][ T2270] openvswitch: netlink: Flow actions may not be safe on all matching packets. [ 226.109165][ T2297] left0 (unregistering): left promiscuous mode [ 228.084216][ T2303] nv0: left promiscuous mode [ 235.673450][ T2362] ui0: entered promiscuous mode [ 239.105639][ T2413] left0: entered promiscuous mode [ 241.554961][ T2444] left0 (unregistering): left promiscuous mode [ 243.558007][ T2452] ui0: left promiscuous mode [ 249.987024][ T2501] netlink: 'python3': attribute type 2 has an invalid length. [ 249.992664][ T2501] dropreason: entered promiscuous mode [ 253.272849][ T2551] c0: entered promiscuous mode [ 256.360227][ T2590] s0: entered promiscuous mode [ 297.447949][ T2761] s0 (unregistering): left promiscuous mode [ 297.882828][ T2769] c0 (unregistering): left promiscuous mode [ 299.853221][ T2775] dropreason: left promiscuous mode [ 305.531377][ T2818] psample: entered promiscuous mode [ 309.397229][ T2869] c0: entered promiscuous mode [ 310.743903][ T2900] s0: entered promiscuous mode [ 314.837215][ T2963] openvswitch: netlink: Flow actions may not be safe on all matching packets. [ 317.077484][ T2986] openvswitch: netlink: Flow actions may not be safe on all matching packets. [ 319.331640][ T3009] openvswitch: netlink: Flow actions may not be safe on all matching packets. [ 333.397033][ T3152] s0 (unregistering): left promiscuous mode [ 333.933015][ T3162] c0 (unregistering): left promiscuous mode [ 335.916125][ T3168] psample: left promiscuous mode