[ 12.656168][ T308] 8021q: 802.1Q VLAN Support v1.8 [ 15.753172][ T378] GACT probability NOT on [ 17.086904][ T413] br10: port 1(veth1.10) entered blocking state [ 17.088221][ T413] br10: port 1(veth1.10) entered disabled state [ 17.099272][ T413] veth1.10: entered allmulticast mode [ 17.099522][ T413] veth1: entered allmulticast mode [ 17.101526][ T413] veth1.10: entered promiscuous mode [ 17.101749][ T413] veth1: entered promiscuous mode [ 17.571214][ T430] br11: port 1(veth1.11) entered blocking state [ 17.571715][ T430] br11: port 1(veth1.11) entered disabled state [ 17.571988][ T430] veth1.11: entered allmulticast mode [ 17.574217][ T430] veth1.11: entered promiscuous mode [ 18.438873][ T460] br10: port 2(veth2.10) entered blocking state [ 18.439169][ T460] br10: port 2(veth2.10) entered disabled state [ 18.439444][ T460] veth2.10: entered allmulticast mode [ 18.439631][ T460] veth2: entered allmulticast mode [ 18.441554][ T460] veth2.10: entered promiscuous mode [ 18.441763][ T460] veth2: entered promiscuous mode [ 18.885494][ T477] br11: port 2(veth2.11) entered blocking state [ 18.885772][ T477] br11: port 2(veth2.11) entered disabled state [ 18.886048][ T477] veth2.11: entered allmulticast mode [ 18.888069][ T477] veth2.11: entered promiscuous mode [ 19.284098][ T489] br10: port 2(veth2.10) entered blocking state [ 19.284532][ T489] br10: port 2(veth2.10) entered forwarding state [ 19.285367][ T489] br10: port 1(veth1.10) entered blocking state [ 19.285632][ T489] br10: port 1(veth1.10) entered forwarding state [ 19.401871][ T494] br11: port 2(veth2.11) entered blocking state [ 19.402177][ T494] br11: port 2(veth2.11) entered forwarding state [ 19.402630][ T494] br11: port 1(veth1.11) entered blocking state [ 19.402872][ T494] br11: port 1(veth1.11) entered forwarding state [ 28.280355][ T548] [ 28.280727][ T548] ============================= [ 28.280901][ T548] WARNING: suspicious RCU usage [ 28.281355][ T548] 6.14.0-rc6-virtme #1 Not tainted [ 28.281584][ T548] ----------------------------- [ 28.281787][ T548] ./include/net/net_namespace.h:418 suspicious rcu_dereference_check() usage! [ 28.282184][ T548] [ 28.282184][ T548] other info that might help us debug this: [ 28.282184][ T548] [ 28.282544][ T548] [ 28.282544][ T548] rcu_scheduler_active = 2, debug_locks = 1 [ 28.282835][ T548] 1 lock held by mausezahn/548: [ 28.283004][ T548] #0: ffffffff8d15b5c0 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x1f0/0x18d0 [ 28.283314][ T548] [ 28.283314][ T548] stack backtrace: [ 28.283535][ T548] CPU: 2 UID: 0 PID: 548 Comm: mausezahn Not tainted 6.14.0-rc6-virtme #1 [ 28.283540][ T548] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 28.283542][ T548] Call Trace: [ 28.283543][ T548] [ 28.283546][ T548] dump_stack_lvl+0xb0/0xd0 [ 28.283555][ T548] lockdep_rcu_suspicious+0x1ea/0x280 [ 28.283567][ T548] dev_hard_start_xmit+0x2fc/0x3f0 [ 28.283578][ T548] __dev_queue_xmit+0xfaf/0x18d0 [ 28.283583][ T548] ? __pfx__copy_from_iter+0x10/0x10 [ 28.283593][ T548] ? __pfx_vlan_parse_protocol+0x10/0x10 [8021q] [ 28.283605][ T548] ? __pfx___dev_queue_xmit+0x10/0x10 [ 28.283609][ T548] ? packet_parse_headers+0x231/0x9c0 [ 28.283618][ T548] ? copy_page_from_iter+0xbd/0x120 [ 28.283623][ T548] ? __pfx_packet_parse_headers+0x10/0x10 [ 28.283628][ T548] ? skb_copy_datagram_from_iter+0x29f/0x6f0 [ 28.283643][ T548] packet_snd+0xd0c/0x19d0 [ 28.283655][ T548] ? __lock_release+0x103/0x460 [ 28.283659][ T548] ? __might_fault+0x11b/0x170 [ 28.283669][ T548] ? __pfx_packet_snd+0x10/0x10 [ 28.283671][ T548] ? trace_lock_acquire+0x14c/0x1f0 [ 28.283673][ T548] ? __might_fault+0x11b/0x170 [ 28.283680][ T548] ? lock_acquire+0x32/0xc0 [ 28.283686][ T548] ? __might_fault+0x11b/0x170 [ 28.283697][ T548] __sys_sendto+0x3c3/0x450 [ 28.283704][ T548] ? __pfx___sys_sendto+0x10/0x10 [ 28.283718][ T548] ? sock_ioctl+0x3b6/0x590 [ 28.283724][ T548] ? __pfx___lock_release+0x10/0x10 [ 28.283731][ T548] ? __pfx___up_read+0x10/0x10 [ 28.283743][ T548] ? do_user_addr_fault+0x972/0xe30 [ 28.283753][ T548] ? do_user_addr_fault+0x97c/0xe30 [ 28.283760][ T548] __x64_sys_sendto+0xe0/0x1c0 [ 28.283763][ T548] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 28.283769][ T548] do_syscall_64+0xc1/0x1d0 [ 28.283779][ T548] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 28.283784][ T548] RIP: 0033:0x7faf76779a4a [ 28.283788][ T548] 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 [ 28.283791][ T548] RSP: 002b:00007ffd6be55248 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 28.283795][ T548] RAX: ffffffffffffffda RBX: 000000000ba1d9d0 RCX: 00007faf76779a4a [ 28.283797][ T548] RDX: 0000000000001f6a RSI: 000000000ba208e2 RDI: 0000000000000005 [ 28.283798][ T548] RBP: 000000000ba208e2 R08: 00007ffd6be55250 R09: 0000000000000014 [ 28.283800][ T548] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 28.283802][ T548] R13: 0000000000001f6a R14: 00007ffd6be55250 R15: 0000000000000000 [ 28.283818][ T548] [ 99.996361][ T837] br11: port 2(veth2.11) entered disabled state [ 99.997522][ T837] br11: port 1(veth1.11) entered disabled state [ 100.016350][ T837] ip (837) used greatest stack depth: 23984 bytes left [ 100.108662][ T839] br10: port 2(veth2.10) entered disabled state [ 100.109464][ T839] br10: port 1(veth1.10) entered disabled state [ 100.300373][ T843] veth2.11: left allmulticast mode [ 100.300670][ T843] veth2.11: left promiscuous mode [ 100.301357][ T843] br11: port 2(veth2.11) entered disabled state [ 100.634249][ T851] veth2.10: left allmulticast mode [ 100.634548][ T851] veth2: left allmulticast mode [ 100.634868][ T851] veth2.10: left promiscuous mode [ 100.635180][ T851] veth2: left promiscuous mode [ 100.635858][ T851] br10: port 2(veth2.10) entered disabled state [ 101.221429][ T861] veth1.11: left allmulticast mode [ 101.221780][ T861] veth1.11: left promiscuous mode [ 101.223430][ T861] br11: port 1(veth1.11) entered disabled state [ 101.561361][ T867] veth1.10: left allmulticast mode [ 101.561617][ T867] veth1: left allmulticast mode [ 101.561845][ T867] veth1.10: left promiscuous mode [ 101.562024][ T867] veth1: left promiscuous mode [ 101.562559][ T867] br10: port 1(veth1.10) entered disabled state