[ 1945.131788][ T7813] openvswitch: Open vSwitch switching datapath
[ 1949.590980][ T7842] netlink: 'python3': attribute type 2 has an invalid length.
[ 1949.599920][ T7842] arpping: entered promiscuous mode
[ 1953.252417][ T7892] c0: entered promiscuous mode
[ 1956.519496][ T7930] s0: entered promiscuous mode
[ 1962.323780][ T7991] 
[ 1962.324059][ T7991] =============================
[ 1962.324256][ T7991] WARNING: suspicious RCU usage
[ 1962.324418][ T7991] 6.14.0-rc6-virtme #1 Not tainted
[ 1962.324624][ T7991] -----------------------------
[ 1962.324991][ T7991] ./include/net/net_namespace.h:418 suspicious rcu_dereference_check() usage!
[ 1962.325280][ T7991] 
[ 1962.325280][ T7991] other info that might help us debug this:
[ 1962.325280][ T7991] 
[ 1962.325594][ T7991] 
[ 1962.325594][ T7991] rcu_scheduler_active = 2, debug_locks = 1
[ 1962.325832][ T7991] 1 lock held by arping/7991:
[ 1962.326006][ T7991]  #0: ffffffffae76f640 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x1f5/0x18d0
[ 1962.326321][ T7991] 
[ 1962.326321][ T7991] stack backtrace:
[ 1962.326518][ T7991] CPU: 3 UID: 0 PID: 7991 Comm: arping Not tainted 6.14.0-rc6-virtme #1
[ 1962.326522][ T7991] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1962.326525][ T7991] Call Trace:
[ 1962.326527][ T7991]  <TASK>
[ 1962.326530][ T7991]  dump_stack_lvl+0xb0/0xd0
[ 1962.326540][ T7991]  lockdep_rcu_suspicious+0x1ea/0x280
[ 1962.326553][ T7991]  dev_hard_start_xmit+0x2fc/0x3f0
[ 1962.326565][ T7991]  __dev_queue_xmit+0xfaa/0x18d0
[ 1962.326569][ T7991]  ? _copy_from_iter+0x1d2/0x12e0
[ 1962.326589][ T7991]  ? __pfx___dev_queue_xmit+0x10/0x10
[ 1962.326594][ T7991]  ? packet_parse_headers+0x243/0x9d0
[ 1962.326606][ T7991]  ? __pfx_sock_alloc_send_pskb+0x10/0x10
[ 1962.326613][ T7991]  ? __pfx_packet_parse_headers+0x10/0x10
[ 1962.326618][ T7991]  ? skb_copy_datagram_from_iter+0xe6/0x6e0
[ 1962.326626][ T7991]  ? dev_get_by_index+0xb2/0x190
[ 1962.326637][ T7991]  packet_snd+0xd0d/0x19c0
[ 1962.326650][ T7991]  ? __lock_release+0x103/0x460
[ 1962.326653][ T7991]  ? __might_fault+0x11b/0x170
[ 1962.326661][ T7991]  ? __pfx_packet_snd+0x10/0x10
[ 1962.326663][ T7991]  ? trace_lock_acquire+0x14c/0x1f0
[ 1962.326666][ T7991]  ? __pfx___lock_release+0x10/0x10
[ 1962.326673][ T7991]  ? lock_acquire+0x32/0xc0
[ 1962.326678][ T7991]  ? __might_fault+0x11b/0x170
[ 1962.326690][ T7991]  __sys_sendto+0x3c3/0x450
[ 1962.326697][ T7991]  ? __pfx___sys_sendto+0x10/0x10
[ 1962.326709][ T7991]  ? __lock_release+0x103/0x460
[ 1962.326713][ T7991]  ? __pfx___lock_release+0x10/0x10
[ 1962.326722][ T7991]  ? __pfx___up_read+0x10/0x10
[ 1962.326728][ T7991]  ? do_user_addr_fault+0x374/0xe30
[ 1962.326740][ T7991]  ? do_user_addr_fault+0x374/0xe30
[ 1962.326747][ T7991]  __x64_sys_sendto+0xe0/0x1c0
[ 1962.326751][ T7991]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 1962.326756][ T7991]  do_syscall_64+0xc1/0x1d0
[ 1962.326765][ T7991]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 1962.326770][ T7991] RIP: 0033:0x7faafd4f6a4a
[ 1962.326775][ T7991] 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
[ 1962.326778][ T7991] RSP: 002b:00007fff8f593418 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[ 1962.326781][ T7991] RAX: ffffffffffffffda RBX: 0000000000000100 RCX: 00007faafd4f6a4a
[ 1962.326784][ T7991] RDX: 000000000000001c RSI: 00007fff8f593430 RDI: 0000000000000005
[ 1962.326786][ T7991] RBP: 00007fff8f593580 R08: 00007fff8f5949e0 R09: 0000000000000014
[ 1962.326787][ T7991] R10: 0000000000000000 R11: 0000000000000246 R12: 00007faafd3a4710
[ 1962.326789][ T7991] R13: 00000000004047b4 R14: 0000000000407de0 R15: 00007faafd5fc000
[ 1962.326806][ T7991]  </TASK>
[ 1963.564351][ T7994] s0 (unregistering): left promiscuous mode
[ 1964.027260][ T8002] c0 (unregistering): left promiscuous mode
[ 1966.246354][ T8009] arpping: left promiscuous mode
[ 1972.848283][ T8053] netlink: 'python3': attribute type 2 has an invalid length.
[ 1972.853975][ T8053] ct4: entered promiscuous mode
[ 1976.381619][ T8103] c0: entered promiscuous mode
[ 1979.914759][ T8142] s0: entered promiscuous mode
[ 2009.559115][ T8298] s0 (unregistering): left promiscuous mode
[ 2010.024311][ T8306] c0 (unregistering): left promiscuous mode
[ 2012.169000][ T8312] ct4: left promiscuous mode
[ 2018.308997][ T8356] netlink: 'python3': attribute type 2 has an invalid length.
[ 2018.314970][ T8356] cv4: entered promiscuous mode
[ 2021.685501][ T8407] c0: entered promiscuous mode
[ 2024.938398][ T8445] s0: entered promiscuous mode
[ 2037.007178][ T8532] s0 (unregistering): left promiscuous mode
[ 2037.495281][ T8540] c0 (unregistering): left promiscuous mode
[ 2039.672264][ T8546] cv4: left promiscuous mode
[ 2045.872438][ T8590] netlink: 'python3': attribute type 2 has an invalid length.
[ 2045.878650][ T8590] nat4: entered promiscuous mode
[ 2049.411181][ T8640] c0: entered promiscuous mode
[ 2052.793402][ T8678] s0: entered promiscuous mode
[ 2080.201289][ T8818] s0 (unregistering): left promiscuous mode
[ 2080.670248][ T8826] c0 (unregistering): left promiscuous mode
[ 2082.759533][ T8832] nat4: left promiscuous mode
[ 2089.049102][ T8876] netlink: 'python3': attribute type 2 has an invalid length.
[ 2089.055126][ T8876] natrelated4: entered promiscuous mode
[ 2092.372093][ T8927] c0: entered promiscuous mode
[ 2095.528129][ T8965] s0: entered promiscuous mode
[ 2112.680120][ T9118] s0 (unregistering): left promiscuous mode
[ 2113.140008][ T9126] c0 (unregistering): left promiscuous mode
[ 2115.162021][ T9132] natrelated4: left promiscuous mode
[ 2121.031626][ T9176] netlink: 'python3': attribute type 2 has an invalid length.
[ 2121.037454][ T9176] nv0: entered promiscuous mode
[ 2123.144652][ T9200] netlink: 'python3': attribute type 2 has an invalid length.
[ 2123.146006][ T9200] openvswitch: nv0: Dropping previously announced user features
[ 2126.421995][ T9249] left0: entered promiscuous mode
[ 2129.560238][ T9288] right0: entered promiscuous mode
[ 2133.487799][ T9320] right0: left promiscuous mode
[ 2137.450825][ T9356] openvswitch: netlink: Flow actions may not be safe on all matching packets.
[ 2137.574681][ T9356] python3 (9356) used greatest stack depth: 22896 bytes left
[ 2139.629001][ T9379] openvswitch: netlink: Flow actions may not be safe on all matching packets.
[ 2140.561296][ T9406] left0 (unregistering): left promiscuous mode
[ 2142.606813][ T9412] nv0: left promiscuous mode
[ 2150.252225][ T9471] ui0: entered promiscuous mode
[ 2153.655006][ T9521] left0: entered promiscuous mode
[ 2159.469017][ T9558] left0 (unregistering): left promiscuous mode
[ 2161.500967][ T9566] ui0: left promiscuous mode
[ 2167.800952][ T9615] netlink: 'python3': attribute type 2 has an invalid length.
[ 2167.806690][ T9615] dropreason: entered promiscuous mode
[ 2171.061178][ T9665] c0: entered promiscuous mode
[ 2174.181840][ T9703] s0: entered promiscuous mode
[ 2218.710155][ T9876] s0 (unregistering): left promiscuous mode
[ 2219.167155][ T9884] c0 (unregistering): left promiscuous mode
[ 2221.221900][ T9890] dropreason: left promiscuous mode
[ 2227.125910][ T9933] psample: entered promiscuous mode
[ 2231.153687][ T9984] c0: entered promiscuous mode
[ 2232.558710][T10015] s0: entered promiscuous mode
[ 2236.884051][T10078] openvswitch: netlink: Flow actions may not be safe on all matching packets.
[ 2239.128452][T10101] openvswitch: netlink: Flow actions may not be safe on all matching packets.
[ 2241.364589][T10124] openvswitch: netlink: Flow actions may not be safe on all matching packets.
[ 2255.657176][T10267] s0 (unregistering): left promiscuous mode
[ 2256.244414][T10277] c0 (unregistering): left promiscuous mode
[ 2258.447350][T10283] psample: left promiscuous mode