[ 75.478987][ T1435] openvswitch: Open vSwitch switching datapath [ 79.701115][ T1465] netlink: 'python3': attribute type 2 has an invalid length. [ 79.708122][ T1465] arpping: entered promiscuous mode [ 80.499728][ T1492] ip (1492) used greatest stack depth: 23856 bytes left [ 82.942108][ T1516] c0: entered promiscuous mode [ 85.994588][ T1554] s0: entered promiscuous mode [ 91.262671][ T1615] [ 91.262957][ T1615] ============================= [ 91.263151][ T1615] WARNING: suspicious RCU usage [ 91.263322][ T1615] 6.14.0-rc6-virtme #1 Not tainted [ 91.263656][ T1615] ----------------------------- [ 91.263842][ T1615] ./include/net/net_namespace.h:418 suspicious rcu_dereference_check() usage! [ 91.264198][ T1615] [ 91.264198][ T1615] other info that might help us debug this: [ 91.264198][ T1615] [ 91.264541][ T1615] [ 91.264541][ T1615] rcu_scheduler_active = 2, debug_locks = 1 [ 91.264782][ T1615] 1 lock held by arping/1615: [ 91.264971][ T1615] #0: ffffffffb1b6f640 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x1f5/0x18d0 [ 91.265274][ T1615] [ 91.265274][ T1615] stack backtrace: [ 91.265497][ T1615] CPU: 2 UID: 0 PID: 1615 Comm: arping Not tainted 6.14.0-rc6-virtme #1 [ 91.265502][ T1615] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 91.265504][ T1615] Call Trace: [ 91.265506][ T1615] [ 91.265508][ T1615] dump_stack_lvl+0xb0/0xd0 [ 91.265517][ T1615] lockdep_rcu_suspicious+0x1ea/0x280 [ 91.265528][ T1615] dev_hard_start_xmit+0x2fc/0x3f0 [ 91.265539][ T1615] __dev_queue_xmit+0xfaa/0x18d0 [ 91.265544][ T1615] ? _copy_from_iter+0x1d2/0x12e0 [ 91.265561][ T1615] ? __pfx___dev_queue_xmit+0x10/0x10 [ 91.265566][ T1615] ? packet_parse_headers+0x243/0x9d0 [ 91.265576][ T1615] ? __pfx_sock_alloc_send_pskb+0x10/0x10 [ 91.265584][ T1615] ? __pfx_packet_parse_headers+0x10/0x10 [ 91.265589][ T1615] ? skb_copy_datagram_from_iter+0xe6/0x6e0 [ 91.265595][ T1615] ? dev_get_by_index+0xb2/0x190 [ 91.265611][ T1615] packet_snd+0xd0d/0x19c0 [ 91.265631][ T1615] ? __lock_release+0x103/0x460 [ 91.265634][ T1615] ? __might_fault+0x11b/0x170 [ 91.265640][ T1615] ? __pfx_packet_snd+0x10/0x10 [ 91.265643][ T1615] ? trace_lock_acquire+0x14c/0x1f0 [ 91.265646][ T1615] ? __pfx___lock_release+0x10/0x10 [ 91.265653][ T1615] ? lock_acquire+0x32/0xc0 [ 91.265658][ T1615] ? __might_fault+0x11b/0x170 [ 91.265669][ T1615] __sys_sendto+0x3c3/0x450 [ 91.265677][ T1615] ? __pfx___sys_sendto+0x10/0x10 [ 91.265689][ T1615] ? __lock_release+0x103/0x460 [ 91.265693][ T1615] ? __pfx___lock_release+0x10/0x10 [ 91.265701][ T1615] ? __pfx___up_read+0x10/0x10 [ 91.265707][ T1615] ? do_user_addr_fault+0x374/0xe30 [ 91.265718][ T1615] ? do_user_addr_fault+0x374/0xe30 [ 91.265726][ T1615] __x64_sys_sendto+0xe0/0x1c0 [ 91.265730][ T1615] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 91.265735][ T1615] do_syscall_64+0xc1/0x1d0 [ 91.265743][ T1615] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 91.265748][ T1615] RIP: 0033:0x7f3c5b921a4a [ 91.265752][ T1615] 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 [ 91.265755][ T1615] RSP: 002b:00007ffff9cd2fe8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 91.265758][ T1615] RAX: ffffffffffffffda RBX: 0000000000000100 RCX: 00007f3c5b921a4a [ 91.265760][ T1615] RDX: 000000000000001c RSI: 00007ffff9cd3000 RDI: 0000000000000005 [ 91.265762][ T1615] RBP: 00007ffff9cd3150 R08: 00007ffff9cd45b0 R09: 0000000000000014 [ 91.265763][ T1615] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f3c5b7cf710 [ 91.265765][ T1615] R13: 00000000004047b4 R14: 0000000000407de0 R15: 00007f3c5ba27000 [ 91.265782][ T1615] [ 92.498715][ T1618] s0 (unregistering): left promiscuous mode [ 92.582490][ T1618] ip (1618) used greatest stack depth: 23832 bytes left [ 92.927788][ T1626] c0 (unregistering): left promiscuous mode [ 94.901909][ T1632] arpping: left promiscuous mode [ 100.552782][ T1676] netlink: 'python3': attribute type 2 has an invalid length. [ 100.558631][ T1676] ct4: entered promiscuous mode [ 103.803254][ T1726] c0: entered promiscuous mode [ 106.844764][ T1765] s0: entered promiscuous mode [ 134.603658][ T1920] s0 (unregistering): left promiscuous mode [ 135.017690][ T1928] c0 (unregistering): left promiscuous mode [ 135.117914][ T1928] ip (1928) used greatest stack depth: 23568 bytes left [ 137.027400][ T1934] ct4: left promiscuous mode [ 142.539345][ T1977] netlink: 'python3': attribute type 2 has an invalid length. [ 142.544854][ T1977] cv4: entered promiscuous mode [ 145.756854][ T2028] c0: entered promiscuous mode [ 148.828737][ T2066] s0: entered promiscuous mode [ 159.698705][ T2153] s0 (unregistering): left promiscuous mode [ 160.141817][ T2161] c0 (unregistering): left promiscuous mode [ 162.089718][ T2167] cv4: left promiscuous mode [ 167.601553][ T2211] netlink: 'python3': attribute type 2 has an invalid length. [ 167.606938][ T2211] nat4: entered promiscuous mode [ 170.752279][ T2262] c0: entered promiscuous mode [ 173.810159][ T2300] s0: entered promiscuous mode [ 199.427785][ T2440] s0 (unregistering): left promiscuous mode [ 199.862981][ T2448] c0 (unregistering): left promiscuous mode [ 201.857026][ T2454] nat4: left promiscuous mode [ 207.381197][ T2498] netlink: 'python3': attribute type 2 has an invalid length. [ 207.386682][ T2498] natrelated4: entered promiscuous mode [ 210.615886][ T2548] c0: entered promiscuous mode [ 213.714109][ T2586] s0: entered promiscuous mode [ 230.641900][ T2739] s0 (unregistering): left promiscuous mode [ 231.093305][ T2747] c0 (unregistering): left promiscuous mode [ 233.159265][ T2753] natrelated4: left promiscuous mode [ 239.357408][ T2797] netlink: 'python3': attribute type 2 has an invalid length. [ 239.365294][ T2797] nv0: entered promiscuous mode [ 241.822772][ T2821] netlink: 'python3': attribute type 2 has an invalid length. [ 241.824288][ T2821] openvswitch: nv0: Dropping previously announced user features [ 245.238951][ T2870] left0: entered promiscuous mode [ 248.497971][ T2908] right0: entered promiscuous mode [ 252.613214][ T2940] right0: left promiscuous mode [ 256.744453][ T2976] openvswitch: netlink: Flow actions may not be safe on all matching packets. [ 256.866125][ T2976] python3 (2976) used greatest stack depth: 22896 bytes left [ 259.013391][ T2999] openvswitch: netlink: Flow actions may not be safe on all matching packets. [ 260.060786][ T3026] left0 (unregistering): left promiscuous mode [ 262.204667][ T3033] nv0: left promiscuous mode [ 270.027064][ T3092] ui0: entered promiscuous mode [ 273.565350][ T3143] left0: entered promiscuous mode [ 280.253820][ T3182] left0 (unregistering): left promiscuous mode [ 282.380160][ T3190] ui0: left promiscuous mode [ 288.675516][ T3239] netlink: 'python3': attribute type 2 has an invalid length. [ 288.682161][ T3239] dropreason: entered promiscuous mode [ 291.868022][ T3290] c0: entered promiscuous mode [ 294.988227][ T3328] s0: entered promiscuous mode [ 337.854278][ T3499] s0 (unregistering): left promiscuous mode [ 338.273706][ T3507] c0 (unregistering): left promiscuous mode [ 340.521508][ T3513] dropreason: left promiscuous mode [ 346.521658][ T3556] psample: entered promiscuous mode [ 350.660106][ T3607] c0: entered promiscuous mode [ 351.917253][ T3638] s0: entered promiscuous mode [ 355.913727][ T3701] openvswitch: netlink: Flow actions may not be safe on all matching packets. [ 358.034924][ T3724] openvswitch: netlink: Flow actions may not be safe on all matching packets. [ 360.240588][ T3747] openvswitch: netlink: Flow actions may not be safe on all matching packets. [ 374.374324][ T3890] s0 (unregistering): left promiscuous mode [ 374.898766][ T3901] c0 (unregistering): left promiscuous mode [ 377.136608][ T3907] psample: left promiscuous mode