[ 14.528317][ T319] br1: port 1(veth1) entered blocking state [ 14.528858][ T319] br1: port 1(veth1) entered disabled state [ 14.530126][ T319] veth1: entered allmulticast mode [ 14.532261][ T319] veth1: entered promiscuous mode [ 14.539926][ T319] ip (319) used greatest stack depth: 23776 bytes left [ 14.626241][ T45] br1: port 1(veth1) entered blocking state [ 14.626644][ T45] br1: port 1(veth1) entered forwarding state [ 14.709626][ T321] br1: port 2(veth2) entered blocking state [ 14.709912][ T321] br1: port 2(veth2) entered disabled state [ 14.710176][ T321] veth2: entered allmulticast mode [ 14.712009][ T321] veth2: entered promiscuous mode [ 14.788894][ T41] br1: port 2(veth2) entered blocking state [ 14.789223][ T41] br1: port 2(veth2) entered forwarding state [ 15.062515][ T325] 8021q: 802.1Q VLAN Support v1.8 [ 15.797828][ T335] GACT probability NOT on [ 15.817495][ T333] tc (333) used greatest stack depth: 23752 bytes left [ 22.942684][ T373] Mirror/redirect action on [ 23.373136][ T379] [ 23.373470][ T379] ============================= [ 23.373631][ T379] WARNING: suspicious RCU usage [ 23.373784][ T379] 6.14.0-rc6-virtme #1 Not tainted [ 23.373936][ T379] ----------------------------- [ 23.374086][ T379] ./include/net/net_namespace.h:418 suspicious rcu_dereference_check() usage! [ 23.374381][ T379] [ 23.374381][ T379] other info that might help us debug this: [ 23.374381][ T379] [ 23.374673][ T379] [ 23.374673][ T379] rcu_scheduler_active = 2, debug_locks = 1 [ 23.374895][ T379] 1 lock held by mausezahn/379: [ 23.375076][ T379] #0: ffffffff8a35b5c0 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x1f0/0x18d0 [ 23.375369][ T379] [ 23.375369][ T379] stack backtrace: [ 23.375560][ T379] CPU: 1 UID: 0 PID: 379 Comm: mausezahn Not tainted 6.14.0-rc6-virtme #1 [ 23.375564][ T379] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 23.375566][ T379] Call Trace: [ 23.375568][ T379] [ 23.375570][ T379] dump_stack_lvl+0xb0/0xd0 [ 23.375580][ T379] lockdep_rcu_suspicious+0x1ea/0x280 [ 23.375592][ T379] dev_hard_start_xmit+0x2fc/0x3f0 [ 23.375602][ T379] __dev_queue_xmit+0xfaf/0x18d0 [ 23.375617][ T379] ? __pfx___dev_queue_xmit+0x10/0x10 [ 23.375621][ T379] ? packet_parse_headers+0x231/0x9c0 [ 23.375631][ T379] ? __pfx_sock_alloc_send_pskb+0x10/0x10 [ 23.375638][ T379] ? __pfx_packet_parse_headers+0x10/0x10 [ 23.375643][ T379] ? skb_copy_datagram_from_iter+0xe6/0x6f0 [ 23.375649][ T379] ? dev_get_by_index+0xb2/0x190 [ 23.375662][ T379] packet_snd+0xd0c/0x19d0 [ 23.375674][ T379] ? __lock_release+0x103/0x460 [ 23.375678][ T379] ? __might_fault+0x11b/0x170 [ 23.375687][ T379] ? __pfx_packet_snd+0x10/0x10 [ 23.375690][ T379] ? trace_lock_acquire+0x14c/0x1f0 [ 23.375692][ T379] ? __might_fault+0x11b/0x170 [ 23.375699][ T379] ? lock_acquire+0x32/0xc0 [ 23.375706][ T379] ? __might_fault+0x11b/0x170 [ 23.375717][ T379] __sys_sendto+0x3c3/0x450 [ 23.375723][ T379] ? __pfx___sys_sendto+0x10/0x10 [ 23.375738][ T379] ? sock_ioctl+0x3b6/0x590 [ 23.375749][ T379] ? __pfx___up_read+0x10/0x10 [ 23.375759][ T379] ? do_user_addr_fault+0x374/0xe30 [ 23.375770][ T379] ? do_user_addr_fault+0x374/0xe30 [ 23.375777][ T379] __x64_sys_sendto+0xe0/0x1c0 [ 23.375781][ T379] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 23.375787][ T379] do_syscall_64+0xc1/0x1d0 [ 23.375797][ T379] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 23.375802][ T379] RIP: 0033:0x7f5ffd7cba4a [ 23.375807][ T379] 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 [ 23.375809][ T379] RSP: 002b:00007ffdefeb0ec8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 23.375813][ T379] RAX: ffffffffffffffda RBX: 000000000dd909d0 RCX: 00007f5ffd7cba4a [ 23.375815][ T379] RDX: 000000000000002a RSI: 000000000dd90c92 RDI: 0000000000000005 [ 23.375817][ T379] RBP: 000000000dd90c92 R08: 00007ffdefeb0ed0 R09: 0000000000000014 [ 23.375819][ T379] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 23.375821][ T379] R13: 000000000000002a R14: 00007ffdefeb0ed0 R15: 0000000000000000 [ 23.375837][ T379] [ 58.640039][ T560] br1: port 1(veth1) entered disabled state [ 58.722838][ T561] br1: port 2(veth2) entered disabled state [ 58.811611][ T562] veth2: left allmulticast mode [ 58.811893][ T562] veth2: left promiscuous mode [ 58.812272][ T562] br1: port 2(veth2) entered disabled state [ 58.815019][ T562] veth1: left allmulticast mode [ 58.815281][ T562] veth1: left promiscuous mode [ 58.815618][ T562] br1: port 1(veth1) entered disabled state