[ 12.145619][ T242] openvswitch: Open vSwitch switching datapath [ 16.781667][ T272] netlink: 'python3': attribute type 2 has an invalid length. [ 16.794848][ T272] arpping: entered promiscuous mode [ 17.837170][ T300] ip (300) used greatest stack depth: 24464 bytes left [ 20.545315][ T324] c0: entered promiscuous mode [ 24.086371][ T363] s0: entered promiscuous mode [ 30.649893][ T424] [ 30.650273][ T424] ============================= [ 30.650601][ T424] WARNING: suspicious RCU usage [ 30.650794][ T424] 6.14.0-rc6-virtme #1 Not tainted [ 30.650992][ T424] ----------------------------- [ 30.651198][ T424] ./include/net/net_namespace.h:418 suspicious rcu_dereference_check() usage! [ 30.651515][ T424] [ 30.651515][ T424] other info that might help us debug this: [ 30.651515][ T424] [ 30.651865][ T424] [ 30.651865][ T424] rcu_scheduler_active = 2, debug_locks = 1 [ 30.652141][ T424] 1 lock held by arping/424: [ 30.652321][ T424] #0: ffffffffae16f640 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x1f5/0x18d0 [ 30.652654][ T424] [ 30.652654][ T424] stack backtrace: [ 30.652886][ T424] CPU: 2 UID: 0 PID: 424 Comm: arping Not tainted 6.14.0-rc6-virtme #1 [ 30.652891][ T424] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 30.652893][ T424] Call Trace: [ 30.652895][ T424] [ 30.652898][ T424] dump_stack_lvl+0xb0/0xd0 [ 30.652909][ T424] lockdep_rcu_suspicious+0x1ea/0x280 [ 30.652923][ T424] dev_hard_start_xmit+0x2fc/0x3f0 [ 30.652935][ T424] __dev_queue_xmit+0xfaa/0x18d0 [ 30.652939][ T424] ? _copy_from_iter+0x1d2/0x12e0 [ 30.652958][ T424] ? __pfx___dev_queue_xmit+0x10/0x10 [ 30.652963][ T424] ? packet_parse_headers+0x243/0x9d0 [ 30.652975][ T424] ? __pfx_sock_alloc_send_pskb+0x10/0x10 [ 30.652983][ T424] ? __pfx_packet_parse_headers+0x10/0x10 [ 30.652988][ T424] ? skb_copy_datagram_from_iter+0xe6/0x6e0 [ 30.652996][ T424] ? dev_get_by_index+0xb2/0x190 [ 30.653007][ T424] packet_snd+0xd0d/0x19c0 [ 30.653020][ T424] ? __lock_release+0x103/0x460 [ 30.653023][ T424] ? __might_fault+0x11b/0x170 [ 30.653032][ T424] ? __pfx_packet_snd+0x10/0x10 [ 30.653035][ T424] ? trace_lock_acquire+0x14c/0x1f0 [ 30.653038][ T424] ? __pfx___lock_release+0x10/0x10 [ 30.653045][ T424] ? lock_acquire+0x32/0xc0 [ 30.653053][ T424] ? __might_fault+0x11b/0x170 [ 30.653064][ T424] __sys_sendto+0x3c3/0x450 [ 30.653073][ T424] ? __pfx___sys_sendto+0x10/0x10 [ 30.653085][ T424] ? __lock_release+0x103/0x460 [ 30.653089][ T424] ? __pfx___lock_release+0x10/0x10 [ 30.653098][ T424] ? __pfx___up_read+0x10/0x10 [ 30.653104][ T424] ? do_user_addr_fault+0x374/0xe30 [ 30.653117][ T424] ? do_user_addr_fault+0x374/0xe30 [ 30.653124][ T424] __x64_sys_sendto+0xe0/0x1c0 [ 30.653129][ T424] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 30.653134][ T424] do_syscall_64+0xc1/0x1d0 [ 30.653143][ T424] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 30.653150][ T424] RIP: 0033:0x7f3aa229ba4a [ 30.653155][ T424] 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 [ 30.653158][ T424] RSP: 002b:00007ffd31ca3a78 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 30.653162][ T424] RAX: ffffffffffffffda RBX: 0000000000000100 RCX: 00007f3aa229ba4a [ 30.653164][ T424] RDX: 000000000000001c RSI: 00007ffd31ca3a90 RDI: 0000000000000005 [ 30.653166][ T424] RBP: 00007ffd31ca3be0 R08: 00007ffd31ca5040 R09: 0000000000000014 [ 30.653168][ T424] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f3aa2149710 [ 30.653170][ T424] R13: 00000000004047b4 R14: 0000000000407de0 R15: 00007f3aa23a1000 [ 30.653187][ T424] [ 31.902223][ T428] s0 (unregistering): left promiscuous mode [ 32.019848][ T428] ip (428) used greatest stack depth: 23760 bytes left [ 32.402385][ T436] c0 (unregistering): left promiscuous mode [ 34.633150][ T443] arpping: left promiscuous mode [ 41.647708][ T487] netlink: 'python3': attribute type 2 has an invalid length. [ 41.653469][ T487] ct4: entered promiscuous mode [ 45.086639][ T537] c0: entered promiscuous mode [ 48.237705][ T576] s0: entered promiscuous mode [ 77.602603][ T731] s0 (unregistering): left promiscuous mode [ 78.076157][ T739] c0 (unregistering): left promiscuous mode [ 80.255758][ T745] ct4: left promiscuous mode [ 86.013876][ T788] netlink: 'python3': attribute type 2 has an invalid length. [ 86.019991][ T788] cv4: entered promiscuous mode [ 89.669190][ T838] c0: entered promiscuous mode [ 93.223237][ T885] s0: entered promiscuous mode [ 105.727342][ T972] s0 (unregistering): left promiscuous mode [ 106.274191][ T980] c0 (unregistering): left promiscuous mode [ 108.500449][ T986] cv4: left promiscuous mode [ 114.590379][ T1030] netlink: 'python3': attribute type 2 has an invalid length. [ 114.597719][ T1030] nat4: entered promiscuous mode [ 117.939384][ T1080] c0: entered promiscuous mode [ 121.386197][ T1119] s0: entered promiscuous mode [ 149.563142][ T1259] s0 (unregistering): left promiscuous mode [ 150.044070][ T1267] c0 (unregistering): left promiscuous mode [ 152.267663][ T1273] nat4: left promiscuous mode [ 158.763632][ T1317] netlink: 'python3': attribute type 2 has an invalid length. [ 158.769412][ T1317] natrelated4: entered promiscuous mode [ 162.070320][ T1367] c0: entered promiscuous mode [ 165.718245][ T1405] s0: entered promiscuous mode [ 184.767024][ T1558] s0 (unregistering): left promiscuous mode [ 185.216079][ T1566] c0 (unregistering): left promiscuous mode [ 187.259301][ T1572] natrelated4: left promiscuous mode [ 194.022574][ T1616] netlink: 'python3': attribute type 2 has an invalid length. [ 194.028680][ T1616] nv0: entered promiscuous mode [ 196.168122][ T1640] netlink: 'python3': attribute type 2 has an invalid length. [ 196.169456][ T1640] openvswitch: nv0: Dropping previously announced user features [ 199.754169][ T1690] left0: entered promiscuous mode [ 203.168387][ T1737] right0: entered promiscuous mode [ 207.333114][ T1769] right0: left promiscuous mode [ 211.833623][ T1805] openvswitch: netlink: Flow actions may not be safe on all matching packets. [ 212.051010][ T1805] python3 (1805) used greatest stack depth: 22896 bytes left [ 214.234101][ T1828] openvswitch: netlink: Flow actions may not be safe on all matching packets. [ 215.283375][ T1855] left0 (unregistering): left promiscuous mode [ 217.518597][ T1861] nv0: left promiscuous mode [ 225.923280][ T1920] ui0: entered promiscuous mode [ 229.704865][ T1970] left0: entered promiscuous mode [ 232.145968][ T2001] left0 (unregistering): left promiscuous mode [ 234.373553][ T2009] ui0: left promiscuous mode [ 241.356785][ T2058] netlink: 'python3': attribute type 2 has an invalid length. [ 241.362395][ T2058] dropreason: entered promiscuous mode [ 245.111664][ T2109] c0: entered promiscuous mode [ 248.677648][ T2147] s0: entered promiscuous mode [ 295.149035][ T2318] s0 (unregistering): left promiscuous mode [ 295.603993][ T2326] c0 (unregistering): left promiscuous mode [ 297.574703][ T2332] dropreason: left promiscuous mode [ 303.160434][ T2375] psample: entered promiscuous mode [ 306.978473][ T2427] c0: entered promiscuous mode [ 308.187633][ T2458] s0: entered promiscuous mode [ 313.131124][ T2521] openvswitch: netlink: Flow actions may not be safe on all matching packets. [ 315.354931][ T2544] openvswitch: netlink: Flow actions may not be safe on all matching packets. [ 317.597765][ T2567] openvswitch: netlink: Flow actions may not be safe on all matching packets. [ 332.682823][ T2710] s0 (unregistering): left promiscuous mode [ 333.177018][ T2720] c0 (unregistering): left promiscuous mode [ 335.198962][ T2728] psample: left promiscuous mode