[ 32.008694][ T502] GACT probability NOT on [ 33.553977][ T552] br1: port 1(veth1) entered blocking state [ 33.554449][ T552] br1: port 1(veth1) entered disabled state [ 33.554713][ T552] veth1: entered allmulticast mode [ 33.556727][ T552] veth1: entered promiscuous mode [ 33.771764][ T71] br1: port 1(veth1) entered blocking state [ 33.772242][ T71] br1: port 1(veth1) entered forwarding state [ 40.430342][ T603] br1: port 2(vx1) entered blocking state [ 40.430634][ T603] br1: port 2(vx1) entered disabled state [ 40.430888][ T603] vx1: entered allmulticast mode [ 40.432804][ T603] vx1: entered promiscuous mode [ 40.434014][ T603] br1: port 2(vx1) entered blocking state [ 40.434366][ T603] br1: port 2(vx1) entered forwarding state [ 41.387127][ T658] [ 41.387396][ T658] ============================= [ 41.387739][ T658] WARNING: suspicious RCU usage [ 41.387901][ T658] 6.14.0-rc6-virtme #1 Not tainted [ 41.388071][ T658] ----------------------------- [ 41.388261][ T658] ./include/net/net_namespace.h:418 suspicious rcu_dereference_check() usage! [ 41.388524][ T658] [ 41.388524][ T658] other info that might help us debug this: [ 41.388524][ T658] [ 41.388852][ T658] [ 41.388852][ T658] rcu_scheduler_active = 2, debug_locks = 1 [ 41.389089][ T658] 1 lock held by mausezahn/658: [ 41.389258][ T658] #0: ffffffffb8d5b5c0 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x1f0/0x18d0 [ 41.389564][ T658] [ 41.389564][ T658] stack backtrace: [ 41.389776][ T658] CPU: 0 UID: 0 PID: 658 Comm: mausezahn Not tainted 6.14.0-rc6-virtme #1 [ 41.389780][ T658] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 41.389783][ T658] Call Trace: [ 41.389786][ T658] [ 41.389789][ T658] dump_stack_lvl+0xb0/0xd0 [ 41.389801][ T658] lockdep_rcu_suspicious+0x1ea/0x280 [ 41.389822][ T658] dev_hard_start_xmit+0x2fc/0x3f0 [ 41.389832][ T658] __dev_queue_xmit+0xfaf/0x18d0 [ 41.389846][ T658] ? __pfx___dev_queue_xmit+0x10/0x10 [ 41.389851][ T658] ? packet_parse_headers+0x231/0x9c0 [ 41.389861][ T658] ? __pfx_sock_alloc_send_pskb+0x10/0x10 [ 41.389872][ T658] ? __pfx_packet_parse_headers+0x10/0x10 [ 41.389876][ T658] ? skb_copy_datagram_from_iter+0xe6/0x6f0 [ 41.389883][ T658] ? dev_get_by_index+0xb2/0x190 [ 41.389896][ T658] packet_snd+0xd0c/0x19d0 [ 41.389907][ T658] ? __lock_release+0x103/0x460 [ 41.389911][ T658] ? __might_fault+0x11b/0x170 [ 41.389925][ T658] ? __pfx_packet_snd+0x10/0x10 [ 41.389927][ T658] ? trace_lock_acquire+0x14c/0x1f0 [ 41.389930][ T658] ? __might_fault+0x11b/0x170 [ 41.389937][ T658] ? lock_acquire+0x32/0xc0 [ 41.389943][ T658] ? __might_fault+0x11b/0x170 [ 41.389954][ T658] __sys_sendto+0x3c3/0x450 [ 41.389961][ T658] ? __pfx___sys_sendto+0x10/0x10 [ 41.389976][ T658] ? sock_ioctl+0x3b6/0x590 [ 41.389988][ T658] ? __pfx___up_read+0x10/0x10 [ 41.389997][ T658] ? do_user_addr_fault+0x374/0xe30 [ 41.390014][ T658] ? do_user_addr_fault+0x374/0xe30 [ 41.390021][ T658] __x64_sys_sendto+0xe0/0x1c0 [ 41.390024][ T658] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 41.390029][ T658] do_syscall_64+0xc1/0x1d0 [ 41.390040][ T658] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 41.390050][ T658] RIP: 0033:0x7fa595694a4a [ 41.390055][ T658] 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 [ 41.390058][ T658] RSP: 002b:00007fff48ef2cb8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 41.390063][ T658] RAX: ffffffffffffffda RBX: 00000000155919d0 RCX: 00007fa595694a4a [ 41.390065][ T658] RDX: 0000000000000094 RSI: 0000000015591cf2 RDI: 0000000000000005 [ 41.390067][ T658] RBP: 0000000015591cf2 R08: 00007fff48ef2cc0 R09: 0000000000000014 [ 41.390069][ T658] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 41.390070][ T658] R13: 0000000000000094 R14: 00007fff48ef2cc0 R15: 0000000000000000 [ 41.390086][ T658] [ 80.331650][ T2555] vx1: left allmulticast mode [ 80.332336][ T2555] vx1: left promiscuous mode [ 80.332865][ T2555] br1: port 2(vx1) entered disabled state [ 80.816231][ T2578] br1: port 2(vx1) entered blocking state [ 80.816517][ T2578] br1: port 2(vx1) entered disabled state [ 80.817143][ T2578] vx1: entered allmulticast mode [ 80.819127][ T2578] vx1: entered promiscuous mode [ 80.820182][ T2578] br1: port 2(vx1) entered blocking state [ 80.820411][ T2578] br1: port 2(vx1) entered forwarding state [ 120.737761][ T4530] vx1: left allmulticast mode [ 120.738232][ T4530] vx1: left promiscuous mode [ 120.738782][ T4530] br1: port 2(vx1) entered disabled state [ 121.356527][ T4563] br1: port 2(vx1) entered blocking state [ 121.356822][ T4563] br1: port 2(vx1) entered disabled state [ 121.357123][ T4563] vx1: entered allmulticast mode [ 121.360247][ T4563] vx1: entered promiscuous mode [ 121.361827][ T4563] br1: port 2(vx1) entered blocking state [ 121.362108][ T4563] br1: port 2(vx1) entered forwarding state [ 159.868863][ T6515] vx1: left allmulticast mode [ 159.869259][ T6515] vx1: left promiscuous mode [ 159.869602][ T6515] br1: port 2(vx1) entered disabled state [ 160.422844][ T6548] br1: port 2(vx1) entered blocking state [ 160.423089][ T6548] br1: port 2(vx1) entered disabled state [ 160.423344][ T6548] vx1: entered allmulticast mode [ 160.425281][ T6548] vx1: entered promiscuous mode [ 160.426086][ T6548] br1: port 2(vx1) entered blocking state [ 160.426324][ T6548] br1: port 2(vx1) entered forwarding state [ 197.395097][ T8500] vx1: left allmulticast mode [ 197.395391][ T8500] vx1: left promiscuous mode [ 197.395724][ T8500] br1: port 2(vx1) entered disabled state [ 197.977605][ T8533] br1: port 2(vx1) entered blocking state [ 197.977852][ T8533] br1: port 2(vx1) entered disabled state [ 197.978081][ T8533] vx1: entered allmulticast mode [ 197.979963][ T8533] vx1: entered promiscuous mode [ 197.980720][ T8533] br1: port 2(vx1) entered blocking state [ 197.980927][ T8533] br1: port 2(vx1) entered forwarding state [ 236.309149][T10485] vx1: left allmulticast mode [ 236.309414][T10485] vx1: left promiscuous mode [ 236.309724][T10485] br1: port 2(vx1) entered disabled state [ 236.943744][T10518] br1: port 2(vx1) entered blocking state [ 236.944062][T10518] br1: port 2(vx1) entered disabled state [ 236.944364][T10518] vx1: entered allmulticast mode [ 236.946671][T10518] vx1: entered promiscuous mode [ 236.947879][T10518] br1: port 2(vx1) entered blocking state [ 236.948121][T10518] br1: port 2(vx1) entered forwarding state [ 274.108143][T12470] vx1: left allmulticast mode [ 274.108392][T12470] vx1: left promiscuous mode [ 274.108697][T12470] br1: port 2(vx1) entered disabled state [ 274.657849][T12503] br1: port 2(vx1) entered blocking state [ 274.658114][T12503] br1: port 2(vx1) entered disabled state [ 274.658815][T12503] vx1: entered allmulticast mode [ 274.660748][T12503] vx1: entered promiscuous mode [ 274.661519][T12503] br1: port 2(vx1) entered blocking state [ 274.661738][T12503] br1: port 2(vx1) entered forwarding state [ 311.377912][T14455] vx1: left allmulticast mode [ 311.378140][T14455] vx1: left promiscuous mode [ 311.378464][T14455] br1: port 2(vx1) entered disabled state [ 312.222029][T14480] br1: port 1(veth1) entered disabled state [ 312.301034][T14482] veth1: left allmulticast mode [ 312.301280][T14482] veth1: left promiscuous mode [ 312.301581][T14482] br1: port 1(veth1) entered disabled state