[ 454.177475][ T4510] GACT probability NOT on [ 455.731833][ T4560] br1: port 1(veth1) entered blocking state [ 455.732292][ T4560] br1: port 1(veth1) entered disabled state [ 455.732601][ T4560] veth1: entered allmulticast mode [ 455.735160][ T4560] veth1: entered promiscuous mode [ 455.974860][ T152] br1: port 1(veth1) entered blocking state [ 455.975456][ T152] br1: port 1(veth1) entered forwarding state [ 462.985236][ T4612] br1: port 2(vx1) entered blocking state [ 462.985493][ T4612] br1: port 2(vx1) entered disabled state [ 462.985808][ T4612] vx1: entered allmulticast mode [ 462.989618][ T4612] vx1: entered promiscuous mode [ 462.991148][ T4612] br1: port 2(vx1) entered blocking state [ 462.991504][ T4612] br1: port 2(vx1) entered forwarding state [ 464.238420][ T4667] [ 464.238762][ T4667] ============================= [ 464.239380][ T4667] WARNING: suspicious RCU usage [ 464.239657][ T4667] 6.14.0-rc6-virtme #1 Not tainted [ 464.239972][ T4667] ----------------------------- [ 464.240237][ T4667] ./include/net/net_namespace.h:418 suspicious rcu_dereference_check() usage! [ 464.240647][ T4667] [ 464.240647][ T4667] other info that might help us debug this: [ 464.240647][ T4667] [ 464.241126][ T4667] [ 464.241126][ T4667] rcu_scheduler_active = 2, debug_locks = 1 [ 464.241526][ T4667] 1 lock held by mausezahn/4667: [ 464.241777][ T4667] #0: ffffffffa6d5b5c0 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x1f0/0x18d0 [ 464.242253][ T4667] [ 464.242253][ T4667] stack backtrace: [ 464.242557][ T4667] CPU: 3 UID: 0 PID: 4667 Comm: mausezahn Not tainted 6.14.0-rc6-virtme #1 [ 464.242564][ T4667] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 464.242567][ T4667] Call Trace: [ 464.242570][ T4667] [ 464.242575][ T4667] dump_stack_lvl+0xb0/0xd0 [ 464.242587][ T4667] lockdep_rcu_suspicious+0x1ea/0x280 [ 464.242605][ T4667] dev_hard_start_xmit+0x2fc/0x3f0 [ 464.242625][ T4667] __dev_queue_xmit+0xfaf/0x18d0 [ 464.242650][ T4667] ? __pfx___dev_queue_xmit+0x10/0x10 [ 464.242658][ T4667] ? packet_parse_headers+0x231/0x9c0 [ 464.242676][ T4667] ? __pfx_sock_alloc_send_pskb+0x10/0x10 [ 464.242685][ T4667] ? __pfx_packet_parse_headers+0x10/0x10 [ 464.242693][ T4667] ? skb_copy_datagram_from_iter+0xe6/0x6f0 [ 464.242702][ T4667] ? dev_get_by_index+0xb2/0x190 [ 464.242725][ T4667] packet_snd+0xd0c/0x19d0 [ 464.242745][ T4667] ? __lock_release+0x103/0x460 [ 464.242751][ T4667] ? __might_fault+0x11b/0x170 [ 464.242764][ T4667] ? __pfx_packet_snd+0x10/0x10 [ 464.242768][ T4667] ? trace_lock_acquire+0x14c/0x1f0 [ 464.242773][ T4667] ? __might_fault+0x11b/0x170 [ 464.242786][ T4667] ? lock_acquire+0x32/0xc0 [ 464.242799][ T4667] ? __might_fault+0x11b/0x170 [ 464.242821][ T4667] __sys_sendto+0x3c3/0x450 [ 464.242832][ T4667] ? __pfx___sys_sendto+0x10/0x10 [ 464.242857][ T4667] ? sock_ioctl+0x3b6/0x590 [ 464.242877][ T4667] ? __pfx___up_read+0x10/0x10 [ 464.242891][ T4667] ? do_user_addr_fault+0x374/0xe30 [ 464.242909][ T4667] ? do_user_addr_fault+0x374/0xe30 [ 464.242923][ T4667] __x64_sys_sendto+0xe0/0x1c0 [ 464.242930][ T4667] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 464.242939][ T4667] do_syscall_64+0xc1/0x1d0 [ 464.242950][ T4667] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 464.242957][ T4667] RIP: 0033:0x7fa81c85aa4a [ 464.242964][ T4667] 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 [ 464.242969][ T4667] RSP: 002b:00007ffeef5cc9d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 464.242974][ T4667] RAX: ffffffffffffffda RBX: 0000000000b079d0 RCX: 00007fa81c85aa4a [ 464.242978][ T4667] RDX: 0000000000000094 RSI: 0000000000b07cf2 RDI: 0000000000000005 [ 464.242981][ T4667] RBP: 0000000000b07cf2 R08: 00007ffeef5cc9e0 R09: 0000000000000014 [ 464.242984][ T4667] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 464.242986][ T4667] R13: 0000000000000094 R14: 00007ffeef5cc9e0 R15: 0000000000000000 [ 464.243017][ T4667] [ 505.487983][ T6564] vx1: left allmulticast mode [ 505.488252][ T6564] vx1: left promiscuous mode [ 505.488584][ T6564] br1: port 2(vx1) entered disabled state [ 506.054728][ T6587] br1: port 2(vx1) entered blocking state [ 506.054993][ T6587] br1: port 2(vx1) entered disabled state [ 506.055268][ T6587] vx1: entered allmulticast mode [ 506.057222][ T6587] vx1: entered promiscuous mode [ 506.058006][ T6587] br1: port 2(vx1) entered blocking state [ 506.058635][ T6587] br1: port 2(vx1) entered forwarding state [ 549.061983][ T8539] vx1: left allmulticast mode [ 549.062475][ T8539] vx1: left promiscuous mode [ 549.062822][ T8539] br1: port 2(vx1) entered disabled state [ 549.727251][ T8572] br1: port 2(vx1) entered blocking state [ 549.727515][ T8572] br1: port 2(vx1) entered disabled state [ 549.727766][ T8572] vx1: entered allmulticast mode [ 549.729932][ T8572] vx1: entered promiscuous mode [ 549.731399][ T8572] br1: port 2(vx1) entered blocking state [ 549.731712][ T8572] br1: port 2(vx1) entered forwarding state [ 593.537471][T10524] vx1: left allmulticast mode [ 593.539506][T10524] vx1: left promiscuous mode [ 593.539882][T10524] br1: port 2(vx1) entered disabled state [ 594.182982][T10557] br1: port 2(vx1) entered blocking state [ 594.183335][T10557] br1: port 2(vx1) entered disabled state [ 594.183626][T10557] vx1: entered allmulticast mode [ 594.185967][T10557] vx1: entered promiscuous mode [ 594.186802][T10557] br1: port 2(vx1) entered blocking state [ 594.187018][T10557] br1: port 2(vx1) entered forwarding state [ 636.121832][T12509] vx1: left allmulticast mode [ 636.122064][T12509] vx1: left promiscuous mode [ 636.122395][T12509] br1: port 2(vx1) entered disabled state [ 636.820596][T12542] br1: port 2(vx1) entered blocking state [ 636.820848][T12542] br1: port 2(vx1) entered disabled state [ 636.821124][T12542] vx1: entered allmulticast mode [ 636.823138][T12542] vx1: entered promiscuous mode [ 636.823905][T12542] br1: port 2(vx1) entered blocking state [ 636.824144][T12542] br1: port 2(vx1) entered forwarding state [ 679.345845][T14494] vx1: left allmulticast mode [ 679.346122][T14494] vx1: left promiscuous mode [ 679.346437][T14494] br1: port 2(vx1) entered disabled state [ 679.964631][T14527] br1: port 2(vx1) entered blocking state [ 679.964890][T14527] br1: port 2(vx1) entered disabled state [ 679.965149][T14527] vx1: entered allmulticast mode [ 679.967481][T14527] vx1: entered promiscuous mode [ 679.968303][T14527] br1: port 2(vx1) entered blocking state [ 679.968553][T14527] br1: port 2(vx1) entered forwarding state [ 721.252109][T16479] vx1: left allmulticast mode [ 721.252368][T16479] vx1: left promiscuous mode [ 721.252721][T16479] br1: port 2(vx1) entered disabled state [ 721.946108][T16512] br1: port 2(vx1) entered blocking state [ 721.946341][T16512] br1: port 2(vx1) entered disabled state [ 721.946566][T16512] vx1: entered allmulticast mode [ 721.948817][T16512] vx1: entered promiscuous mode [ 721.949625][T16512] br1: port 2(vx1) entered blocking state [ 721.949826][T16512] br1: port 2(vx1) entered forwarding state [ 764.591519][T18464] vx1: left allmulticast mode [ 764.591783][T18464] vx1: left promiscuous mode [ 764.592143][T18464] br1: port 2(vx1) entered disabled state [ 765.603365][T18489] br1: port 1(veth1) entered disabled state [ 765.726487][T18491] veth1: left allmulticast mode [ 765.726717][T18491] veth1: left promiscuous mode [ 765.727019][T18491] br1: port 1(veth1) entered disabled state