[ 2886.996539][T20015] openvswitch: Open vSwitch switching datapath [ 2891.302483][T20045] netlink: 'python3': attribute type 2 has an invalid length. [ 2891.309762][T20045] arpping: entered promiscuous mode [ 2894.805748][T20095] c0: entered promiscuous mode [ 2898.072293][T20133] s0: entered promiscuous mode [ 2903.831690][T20194] [ 2903.831927][T20194] ============================= [ 2903.832237][T20194] WARNING: suspicious RCU usage [ 2903.832451][T20194] 6.14.0-rc6-virtme #1 Not tainted [ 2903.832636][T20194] ----------------------------- [ 2903.832815][T20194] ./include/net/net_namespace.h:418 suspicious rcu_dereference_check() usage! [ 2903.833117][T20194] [ 2903.833117][T20194] other info that might help us debug this: [ 2903.833117][T20194] [ 2903.833500][T20194] [ 2903.833500][T20194] rcu_scheduler_active = 2, debug_locks = 1 [ 2903.833752][T20194] 1 lock held by arping/20194: [ 2903.833928][T20194] #0: ffffffff8736f640 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x1f5/0x18d0 [ 2903.834248][T20194] [ 2903.834248][T20194] stack backtrace: [ 2903.834448][T20194] CPU: 3 UID: 0 PID: 20194 Comm: arping Not tainted 6.14.0-rc6-virtme #1 [ 2903.834452][T20194] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 2903.834458][T20194] Call Trace: [ 2903.834464][T20194] [ 2903.834467][T20194] dump_stack_lvl+0xb0/0xd0 [ 2903.834478][T20194] lockdep_rcu_suspicious+0x1ea/0x280 [ 2903.834500][T20194] dev_hard_start_xmit+0x2fc/0x3f0 [ 2903.834512][T20194] __dev_queue_xmit+0xfaa/0x18d0 [ 2903.834516][T20194] ? _copy_from_iter+0x1d2/0x12e0 [ 2903.834534][T20194] ? __pfx___dev_queue_xmit+0x10/0x10 [ 2903.834540][T20194] ? packet_parse_headers+0x243/0x9d0 [ 2903.834551][T20194] ? __pfx_sock_alloc_send_pskb+0x10/0x10 [ 2903.834562][T20194] ? __pfx_packet_parse_headers+0x10/0x10 [ 2903.834567][T20194] ? skb_copy_datagram_from_iter+0xe6/0x6e0 [ 2903.834576][T20194] ? dev_get_by_index+0xb2/0x190 [ 2903.834587][T20194] packet_snd+0xd0d/0x19c0 [ 2903.834600][T20194] ? __lock_release+0x103/0x460 [ 2903.834603][T20194] ? __might_fault+0x11b/0x170 [ 2903.834616][T20194] ? __pfx_packet_snd+0x10/0x10 [ 2903.834619][T20194] ? trace_lock_acquire+0x14c/0x1f0 [ 2903.834622][T20194] ? __pfx___lock_release+0x10/0x10 [ 2903.834629][T20194] ? lock_acquire+0x32/0xc0 [ 2903.834635][T20194] ? __might_fault+0x11b/0x170 [ 2903.834646][T20194] __sys_sendto+0x3c3/0x450 [ 2903.834655][T20194] ? __pfx___sys_sendto+0x10/0x10 [ 2903.834667][T20194] ? __lock_release+0x103/0x460 [ 2903.834672][T20194] ? __pfx___lock_release+0x10/0x10 [ 2903.834680][T20194] ? __pfx___up_read+0x10/0x10 [ 2903.834687][T20194] ? do_user_addr_fault+0x374/0xe30 [ 2903.834704][T20194] ? do_user_addr_fault+0x374/0xe30 [ 2903.834711][T20194] __x64_sys_sendto+0xe0/0x1c0 [ 2903.834716][T20194] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 2903.834721][T20194] do_syscall_64+0xc1/0x1d0 [ 2903.834732][T20194] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 2903.834743][T20194] RIP: 0033:0x7f9bac753a4a [ 2903.834748][T20194] 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 [ 2903.834751][T20194] RSP: 002b:00007fff4d491b28 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 2903.834756][T20194] RAX: ffffffffffffffda RBX: 0000000000000100 RCX: 00007f9bac753a4a [ 2903.834759][T20194] RDX: 000000000000001c RSI: 00007fff4d491b40 RDI: 0000000000000005 [ 2903.834761][T20194] RBP: 00007fff4d491c90 R08: 00007fff4d4930f0 R09: 0000000000000014 [ 2903.834762][T20194] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f9bac601710 [ 2903.834764][T20194] R13: 00000000004047b4 R14: 0000000000407de0 R15: 00007f9bac859000 [ 2903.834781][T20194] [ 2905.145080][T20197] s0 (unregistering): left promiscuous mode [ 2905.593080][T20206] c0 (unregistering): left promiscuous mode [ 2907.837556][T20212] arpping: left promiscuous mode [ 2914.132601][T20256] netlink: 'python3': attribute type 2 has an invalid length. [ 2914.138811][T20256] ct4: entered promiscuous mode [ 2917.609158][T20307] c0: entered promiscuous mode [ 2920.926139][T20345] s0: entered promiscuous mode [ 2950.199711][T20500] s0 (unregistering): left promiscuous mode [ 2950.716119][T20509] c0 (unregistering): left promiscuous mode [ 2953.054144][T20515] ct4: left promiscuous mode [ 2959.134276][T20558] netlink: 'python3': attribute type 2 has an invalid length. [ 2959.143840][T20558] cv4: entered promiscuous mode [ 2962.687117][T20608] c0: entered promiscuous mode [ 2966.058958][T20647] s0: entered promiscuous mode [ 2977.803092][T20734] s0 (unregistering): left promiscuous mode [ 2978.292259][T20742] c0 (unregistering): left promiscuous mode [ 2980.517122][T20748] cv4: left promiscuous mode [ 2986.664665][T20792] netlink: 'python3': attribute type 2 has an invalid length. [ 2986.670603][T20792] nat4: entered promiscuous mode [ 2990.158062][T20842] c0: entered promiscuous mode [ 2993.448892][T20880] s0: entered promiscuous mode [ 3020.989062][T21020] s0 (unregistering): left promiscuous mode [ 3021.437124][T21028] c0 (unregistering): left promiscuous mode [ 3023.632093][T21034] nat4: left promiscuous mode [ 3029.829120][T21078] netlink: 'python3': attribute type 2 has an invalid length. [ 3029.835137][T21078] natrelated4: entered promiscuous mode [ 3033.345825][T21128] c0: entered promiscuous mode [ 3036.638542][T21167] s0: entered promiscuous mode [ 3054.765073][T21320] s0 (unregistering): left promiscuous mode [ 3055.246110][T21328] c0 (unregistering): left promiscuous mode [ 3057.398047][T21334] natrelated4: left promiscuous mode [ 3063.524062][T21378] netlink: 'python3': attribute type 2 has an invalid length. [ 3063.530290][T21378] nv0: entered promiscuous mode [ 3065.774379][T21402] netlink: 'python3': attribute type 2 has an invalid length. [ 3065.776356][T21402] openvswitch: nv0: Dropping previously announced user features [ 3069.186263][T21451] left0: entered promiscuous mode [ 3072.403458][T21490] right0: entered promiscuous mode [ 3076.588875][T21522] right0: left promiscuous mode [ 3080.854511][T21558] openvswitch: netlink: Flow actions may not be safe on all matching packets. [ 3080.999874][T21558] python3 (21558) used greatest stack depth: 22896 bytes left [ 3083.132188][T21581] openvswitch: netlink: Flow actions may not be safe on all matching packets. [ 3084.089176][T21608] left0 (unregistering): left promiscuous mode [ 3086.231441][T21614] nv0: left promiscuous mode [ 3094.609552][T21673] ui0: entered promiscuous mode [ 3098.357071][T21724] left0: entered promiscuous mode [ 3100.722971][T21755] left0 (unregistering): left promiscuous mode [ 3103.222486][T21763] ui0: left promiscuous mode [ 3110.192724][T21812] netlink: 'python3': attribute type 2 has an invalid length. [ 3110.198650][T21812] dropreason: entered promiscuous mode [ 3113.601067][T21862] c0: entered promiscuous mode [ 3116.989003][T21900] s0: entered promiscuous mode [ 3166.689135][T22071] s0 (unregistering): left promiscuous mode [ 3167.164057][T22079] c0 (unregistering): left promiscuous mode [ 3169.214539][T22085] dropreason: left promiscuous mode [ 3175.393595][T22129] psample: entered promiscuous mode [ 3179.343641][T22181] c0: entered promiscuous mode [ 3180.489529][T22212] s0: entered promiscuous mode [ 3185.414879][T22275] openvswitch: netlink: Flow actions may not be safe on all matching packets. [ 3187.638202][T22298] openvswitch: netlink: Flow actions may not be safe on all matching packets. [ 3189.759391][T22321] openvswitch: netlink: Flow actions may not be safe on all matching packets. [ 3203.516879][T22464] s0 (unregistering): left promiscuous mode [ 3204.044858][T22474] c0 (unregistering): left promiscuous mode [ 3206.056960][T22480] psample: left promiscuous mode