[ 174.980366][ T1855] br1: port 1(veth1) entered blocking state [ 174.980657][ T1855] br1: port 1(veth1) entered disabled state [ 174.980918][ T1855] veth1: entered allmulticast mode [ 174.982806][ T1855] veth1: entered promiscuous mode [ 175.069588][ T68] br1: port 1(veth1) entered blocking state [ 175.069860][ T68] br1: port 1(veth1) entered forwarding state [ 175.163695][ T1858] br1: port 2(veth2) entered blocking state [ 175.163974][ T1858] br1: port 2(veth2) entered disabled state [ 175.164258][ T1858] veth2: entered allmulticast mode [ 175.166349][ T1858] veth2: entered promiscuous mode [ 175.248827][ T57] br1: port 2(veth2) entered blocking state [ 175.249106][ T57] br1: port 2(veth2) entered forwarding state [ 184.105884][ T1909] GACT probability NOT on [ 184.252070][ T1910] [ 184.252487][ T1910] ============================= [ 184.252744][ T1910] WARNING: suspicious RCU usage [ 184.252996][ T1910] 6.14.0-rc6-virtme #1 Not tainted [ 184.253591][ T1910] ----------------------------- [ 184.253837][ T1910] ./include/net/net_namespace.h:418 suspicious rcu_dereference_check() usage! [ 184.254273][ T1910] [ 184.254273][ T1910] other info that might help us debug this: [ 184.254273][ T1910] [ 184.254799][ T1910] [ 184.254799][ T1910] rcu_scheduler_active = 2, debug_locks = 1 [ 184.255188][ T1910] 1 lock held by mausezahn/1910: [ 184.255449][ T1910] #0: ffffffffa095b5c0 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x1f0/0x18d0 [ 184.255919][ T1910] [ 184.255919][ T1910] stack backtrace: [ 184.256252][ T1910] CPU: 3 UID: 0 PID: 1910 Comm: mausezahn Not tainted 6.14.0-rc6-virtme #1 [ 184.256259][ T1910] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 184.256262][ T1910] Call Trace: [ 184.256265][ T1910] [ 184.256269][ T1910] dump_stack_lvl+0xb0/0xd0 [ 184.256281][ T1910] lockdep_rcu_suspicious+0x1ea/0x280 [ 184.256299][ T1910] dev_hard_start_xmit+0x2fc/0x3f0 [ 184.256319][ T1910] __dev_queue_xmit+0xfaf/0x18d0 [ 184.256342][ T1910] ? __pfx___dev_queue_xmit+0x10/0x10 [ 184.256349][ T1910] ? packet_parse_headers+0x231/0x9c0 [ 184.256365][ T1910] ? __pfx_sock_alloc_send_pskb+0x10/0x10 [ 184.256374][ T1910] ? __pfx_packet_parse_headers+0x10/0x10 [ 184.256382][ T1910] ? skb_copy_datagram_from_iter+0xe6/0x6f0 [ 184.256392][ T1910] ? dev_get_by_index+0xb2/0x190 [ 184.256412][ T1910] packet_snd+0xd0c/0x19d0 [ 184.256434][ T1910] ? __lock_release+0x103/0x460 [ 184.256440][ T1910] ? __might_fault+0x11b/0x170 [ 184.256450][ T1910] ? __pfx_packet_snd+0x10/0x10 [ 184.256454][ T1910] ? trace_lock_acquire+0x14c/0x1f0 [ 184.256459][ T1910] ? __might_fault+0x11b/0x170 [ 184.256470][ T1910] ? lock_acquire+0x32/0xc0 [ 184.256482][ T1910] ? __might_fault+0x11b/0x170 [ 184.256502][ T1910] __sys_sendto+0x3c3/0x450 [ 184.256511][ T1910] ? __pfx___sys_sendto+0x10/0x10 [ 184.256539][ T1910] ? sock_ioctl+0x3b6/0x590 [ 184.256557][ T1910] ? __pfx___up_read+0x10/0x10 [ 184.256571][ T1910] ? do_user_addr_fault+0x374/0xe30 [ 184.256589][ T1910] ? do_user_addr_fault+0x374/0xe30 [ 184.256604][ T1910] __x64_sys_sendto+0xe0/0x1c0 [ 184.256611][ T1910] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 184.256621][ T1910] do_syscall_64+0xc1/0x1d0 [ 184.256634][ T1910] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 184.256642][ T1910] RIP: 0033:0x7f04cae9ca4a [ 184.256649][ T1910] 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 [ 184.256655][ T1910] RSP: 002b:00007ffed56c32b8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 184.256660][ T1910] RAX: ffffffffffffffda RBX: 00000000026589d0 RCX: 00007f04cae9ca4a [ 184.256664][ T1910] RDX: 0000000000000086 RSI: 0000000002658ce2 RDI: 0000000000000005 [ 184.256667][ T1910] RBP: 0000000002658ce2 R08: 00007ffed56c32c0 R09: 0000000000000014 [ 184.256671][ T1910] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 184.256674][ T1910] R13: 0000000000000086 R14: 00007ffed56c32c0 R15: 0000000000000000 [ 184.256705][ T1910] [ 194.015435][ T2060] br1: port 2(veth2) entered disabled state [ 194.110571][ T2061] veth2: left allmulticast mode [ 194.110808][ T2061] veth2: left promiscuous mode [ 194.111241][ T2061] br1: port 2(veth2) entered disabled state [ 194.204361][ T2062] br1: port 1(veth1) entered disabled state [ 194.299161][ T2063] veth1: left allmulticast mode [ 194.299401][ T2063] veth1: left promiscuous mode [ 194.299720][ T2063] br1: port 1(veth1) entered disabled state