[ 11.308202][ T250] ip (250) used greatest stack depth: 23888 bytes left [ 14.481181][ T300] br0: port 1(veth1) entered blocking state [ 14.481678][ T300] br0: port 1(veth1) entered disabled state [ 14.482060][ T300] veth1: entered allmulticast mode [ 14.484644][ T300] veth1: entered promiscuous mode [ 14.560245][ T302] br0: port 2(veth2) entered blocking state [ 14.560542][ T302] br0: port 2(veth2) entered disabled state [ 14.560820][ T302] veth2: entered allmulticast mode [ 14.562893][ T302] veth2: entered promiscuous mode [ 14.733809][ T38] br0: port 1(veth1) entered blocking state [ 14.734439][ T38] br0: port 1(veth1) entered forwarding state [ 14.819645][ T40] br0: port 2(veth2) entered blocking state [ 14.819972][ T40] br0: port 2(veth2) entered forwarding state [ 23.356895][ T350] veth0: entered promiscuous mode [ 23.846153][ T358] GACT probability NOT on [ 23.991780][ T359] [ 23.992095][ T359] ============================= [ 23.992293][ T359] WARNING: suspicious RCU usage [ 23.992468][ T359] 6.14.0-rc6-virtme #1 Not tainted [ 23.992669][ T359] ----------------------------- [ 23.992842][ T359] ./include/net/net_namespace.h:418 suspicious rcu_dereference_check() usage! [ 23.993146][ T359] [ 23.993146][ T359] other info that might help us debug this: [ 23.993146][ T359] [ 23.993485][ T359] [ 23.993485][ T359] rcu_scheduler_active = 2, debug_locks = 1 [ 23.993738][ T359] 1 lock held by mausezahn/359: [ 23.993919][ T359] #0: ffffffff9a55b5c0 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x1f0/0x18d0 [ 23.994248][ T359] [ 23.994248][ T359] stack backtrace: [ 23.994458][ T359] CPU: 1 UID: 0 PID: 359 Comm: mausezahn Not tainted 6.14.0-rc6-virtme #1 [ 23.994463][ T359] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 23.994465][ T359] Call Trace: [ 23.994468][ T359] [ 23.994470][ T359] dump_stack_lvl+0xb0/0xd0 [ 23.994479][ T359] lockdep_rcu_suspicious+0x1ea/0x280 [ 23.994492][ T359] dev_hard_start_xmit+0x2fc/0x3f0 [ 23.994502][ T359] __dev_queue_xmit+0xfaf/0x18d0 [ 23.994517][ T359] ? __pfx___dev_queue_xmit+0x10/0x10 [ 23.994521][ T359] ? packet_parse_headers+0x231/0x9c0 [ 23.994531][ T359] ? __pfx_sock_alloc_send_pskb+0x10/0x10 [ 23.994538][ T359] ? __pfx_packet_parse_headers+0x10/0x10 [ 23.994543][ T359] ? skb_copy_datagram_from_iter+0xe6/0x6f0 [ 23.994549][ T359] ? dev_get_by_index+0xb2/0x190 [ 23.994561][ T359] packet_snd+0xd0c/0x19d0 [ 23.994573][ T359] ? __lock_release+0x103/0x460 [ 23.994577][ T359] ? __might_fault+0x11b/0x170 [ 23.994585][ T359] ? __pfx_packet_snd+0x10/0x10 [ 23.994588][ T359] ? trace_lock_acquire+0x14c/0x1f0 [ 23.994590][ T359] ? __might_fault+0x11b/0x170 [ 23.994597][ T359] ? lock_acquire+0x32/0xc0 [ 23.994604][ T359] ? __might_fault+0x11b/0x170 [ 23.994615][ T359] __sys_sendto+0x3c3/0x450 [ 23.994622][ T359] ? __pfx___sys_sendto+0x10/0x10 [ 23.994637][ T359] ? sock_ioctl+0x3b6/0x590 [ 23.994647][ T359] ? __pfx___up_read+0x10/0x10 [ 23.994657][ T359] ? do_user_addr_fault+0x374/0xe30 [ 23.994668][ T359] ? do_user_addr_fault+0x374/0xe30 [ 23.994675][ T359] __x64_sys_sendto+0xe0/0x1c0 [ 23.994680][ T359] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 23.994685][ T359] do_syscall_64+0xc1/0x1d0 [ 23.994694][ T359] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 23.994700][ T359] RIP: 0033:0x7f3ff9a29a4a [ 23.994705][ T359] 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 [ 23.994709][ T359] RSP: 002b:00007ffce861cec8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 23.994713][ T359] RAX: ffffffffffffffda RBX: 0000000025ca09d0 RCX: 00007f3ff9a29a4a [ 23.994715][ T359] RDX: 0000000000000062 RSI: 0000000025ca05c2 RDI: 0000000000000005 [ 23.994717][ T359] RBP: 0000000025ca05c2 R08: 00007ffce861ced0 R09: 0000000000000014 [ 23.994719][ T359] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 23.994721][ T359] R13: 0000000000000062 R14: 00007ffce861ced0 R15: 0000000000000000 [ 23.994737][ T359] [ 49.859603][ T386] veth0: left promiscuous mode [ 50.177153][ T398] veth3: entered promiscuous mode [ 52.026536][ T407] veth3: left promiscuous mode [ 52.192482][ T409] veth3: entered promiscuous mode [ 54.093661][ T418] veth3: left promiscuous mode [ 54.270683][ T421] veth3: entered promiscuous mode [ 56.142812][ T430] veth3: left promiscuous mode [ 56.305530][ T432] veth3: entered promiscuous mode [ 58.182843][ T441] veth3: left promiscuous mode [ 63.446607][ T479] br0: port 2(veth2) entered disabled state [ 63.553189][ T480] br0: port 1(veth1) entered disabled state [ 63.663159][ T481] veth2: left allmulticast mode [ 63.663501][ T481] veth2: left promiscuous mode [ 63.663947][ T481] br0: port 2(veth2) entered disabled state [ 63.665909][ T481] veth1: left allmulticast mode [ 63.666166][ T481] veth1: left promiscuous mode [ 63.666518][ T481] br0: port 1(veth1) entered disabled state