[ 13.539643][ T301] br0: port 1(veth1) entered blocking state [ 13.540173][ T301] br0: port 1(veth1) entered disabled state [ 13.540593][ T301] veth1: entered allmulticast mode [ 13.542990][ T301] veth1: entered promiscuous mode [ 13.552748][ T301] ip (301) used greatest stack depth: 24032 bytes left [ 13.626383][ T303] br0: port 2(veth2) entered blocking state [ 13.626903][ T303] br0: port 2(veth2) entered disabled state [ 13.627194][ T303] veth2: entered allmulticast mode [ 13.629147][ T303] veth2: entered promiscuous mode [ 13.785627][ T38] br0: port 1(veth1) entered blocking state [ 13.786005][ T38] br0: port 1(veth1) entered forwarding state [ 13.866965][ T71] br0: port 2(veth2) entered blocking state [ 13.867721][ T71] br0: port 2(veth2) entered forwarding state [ 22.352441][ T351] veth0: entered promiscuous mode [ 22.818768][ T357] GACT probability NOT on [ 22.963128][ T358] [ 22.963459][ T358] ============================= [ 22.963635][ T358] WARNING: suspicious RCU usage [ 22.963802][ T358] 6.14.0-rc6-virtme #1 Not tainted [ 22.963969][ T358] ----------------------------- [ 22.964134][ T358] ./include/net/net_namespace.h:418 suspicious rcu_dereference_check() usage! [ 22.964430][ T358] [ 22.964430][ T358] other info that might help us debug this: [ 22.964430][ T358] [ 22.964759][ T358] [ 22.964759][ T358] rcu_scheduler_active = 2, debug_locks = 1 [ 22.964995][ T358] 1 lock held by mausezahn/358: [ 22.965159][ T358] #0: ffffffff95b5b5c0 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x1f0/0x18d0 [ 22.965481][ T358] [ 22.965481][ T358] stack backtrace: [ 22.965687][ T358] CPU: 2 UID: 0 PID: 358 Comm: mausezahn Not tainted 6.14.0-rc6-virtme #1 [ 22.965691][ T358] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 22.965693][ T358] Call Trace: [ 22.965695][ T358] [ 22.965698][ T358] dump_stack_lvl+0xb0/0xd0 [ 22.965706][ T358] lockdep_rcu_suspicious+0x1ea/0x280 [ 22.965719][ T358] dev_hard_start_xmit+0x2fc/0x3f0 [ 22.965729][ T358] __dev_queue_xmit+0xfaf/0x18d0 [ 22.965743][ T358] ? __pfx___dev_queue_xmit+0x10/0x10 [ 22.965748][ T358] ? packet_parse_headers+0x231/0x9c0 [ 22.965757][ T358] ? __pfx_sock_alloc_send_pskb+0x10/0x10 [ 22.965764][ T358] ? __pfx_packet_parse_headers+0x10/0x10 [ 22.965768][ T358] ? skb_copy_datagram_from_iter+0xe6/0x6f0 [ 22.965774][ T358] ? dev_get_by_index+0xb2/0x190 [ 22.965786][ T358] packet_snd+0xd0c/0x19d0 [ 22.965797][ T358] ? __lock_release+0x103/0x460 [ 22.965801][ T358] ? __might_fault+0x11b/0x170 [ 22.965810][ T358] ? __pfx_packet_snd+0x10/0x10 [ 22.965812][ T358] ? trace_lock_acquire+0x14c/0x1f0 [ 22.965814][ T358] ? __might_fault+0x11b/0x170 [ 22.965821][ T358] ? lock_acquire+0x32/0xc0 [ 22.965828][ T358] ? __might_fault+0x11b/0x170 [ 22.965838][ T358] __sys_sendto+0x3c3/0x450 [ 22.965845][ T358] ? __pfx___sys_sendto+0x10/0x10 [ 22.965859][ T358] ? sock_ioctl+0x3b6/0x590 [ 22.965870][ T358] ? __pfx___up_read+0x10/0x10 [ 22.965880][ T358] ? do_user_addr_fault+0x374/0xe30 [ 22.965891][ T358] ? do_user_addr_fault+0x374/0xe30 [ 22.965898][ T358] __x64_sys_sendto+0xe0/0x1c0 [ 22.965902][ T358] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 22.965908][ T358] do_syscall_64+0xc1/0x1d0 [ 22.965917][ T358] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 22.965923][ T358] RIP: 0033:0x7f3747d33a4a [ 22.965928][ T358] 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 [ 22.965931][ T358] RSP: 002b:00007ffcf2d626b8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 22.965934][ T358] RAX: ffffffffffffffda RBX: 0000000008de59d0 RCX: 00007f3747d33a4a [ 22.965936][ T358] RDX: 0000000000000062 RSI: 0000000008de55c2 RDI: 0000000000000005 [ 22.965938][ T358] RBP: 0000000008de55c2 R08: 00007ffcf2d626c0 R09: 0000000000000014 [ 22.965940][ T358] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 22.965942][ T358] R13: 0000000000000062 R14: 00007ffcf2d626c0 R15: 0000000000000000 [ 22.965957][ T358] [ 48.841525][ T385] veth0: left promiscuous mode [ 49.171094][ T397] veth3: entered promiscuous mode [ 51.107419][ T406] veth3: left promiscuous mode [ 51.264973][ T408] veth3: entered promiscuous mode [ 53.164276][ T417] veth3: left promiscuous mode [ 53.362188][ T420] veth3: entered promiscuous mode [ 55.275295][ T429] veth3: left promiscuous mode [ 55.431553][ T431] veth3: entered promiscuous mode [ 57.370334][ T440] veth3: left promiscuous mode [ 81.324966][ T496] veth3: entered promiscuous mode [ 84.497027][ T516] veth3: left promiscuous mode [ 84.753159][ T524] br0: port 2(veth2) entered disabled state [ 84.845949][ T525] br0: port 1(veth1) entered disabled state [ 84.920481][ T526] veth2: left allmulticast mode [ 84.920802][ T526] veth2: left promiscuous mode [ 84.921129][ T526] br0: port 2(veth2) entered disabled state [ 84.922976][ T526] veth1: left allmulticast mode [ 84.923186][ T526] veth1: left promiscuous mode [ 84.923510][ T526] br0: port 1(veth1) entered disabled state