[ 190.607847][ T851] br10: port 1(veth1.10) entered blocking state [ 190.608360][ T851] br10: port 1(veth1.10) entered disabled state [ 190.608691][ T851] veth1.10: entered allmulticast mode [ 190.608971][ T851] veth1: entered allmulticast mode [ 190.612026][ T851] veth1.10: entered promiscuous mode [ 190.612296][ T851] veth1: entered promiscuous mode [ 191.118315][ T868] br11: port 1(veth1.11) entered blocking state [ 191.118628][ T868] br11: port 1(veth1.11) entered disabled state [ 191.118932][ T868] veth1.11: entered allmulticast mode [ 191.121409][ T868] veth1.11: entered promiscuous mode [ 192.045254][ T898] br10: port 2(veth2.10) entered blocking state [ 192.045563][ T898] br10: port 2(veth2.10) entered disabled state [ 192.045975][ T898] veth2.10: entered allmulticast mode [ 192.046189][ T898] veth2: entered allmulticast mode [ 192.049508][ T898] veth2.10: entered promiscuous mode [ 192.049800][ T898] veth2: entered promiscuous mode [ 192.616111][ T915] br11: port 2(veth2.11) entered blocking state [ 192.616444][ T915] br11: port 2(veth2.11) entered disabled state [ 192.616754][ T915] veth2.11: entered allmulticast mode [ 192.618790][ T915] veth2.11: entered promiscuous mode [ 193.079914][ T927] br10: port 2(veth2.10) entered blocking state [ 193.080433][ T927] br10: port 2(veth2.10) entered forwarding state [ 193.081266][ T927] br10: port 1(veth1.10) entered blocking state [ 193.081559][ T927] br10: port 1(veth1.10) entered forwarding state [ 193.223459][ T932] br11: port 2(veth2.11) entered blocking state [ 193.223965][ T932] br11: port 2(veth2.11) entered forwarding state [ 193.224599][ T932] br11: port 1(veth1.11) entered blocking state [ 193.225353][ T932] br11: port 1(veth1.11) entered forwarding state [ 202.383958][ T986] [ 202.384447][ T986] ============================= [ 202.384706][ T986] WARNING: suspicious RCU usage [ 202.384968][ T986] 6.14.0-rc6-virtme #1 Not tainted [ 202.385248][ T986] ----------------------------- [ 202.385511][ T986] ./include/net/net_namespace.h:418 suspicious rcu_dereference_check() usage! [ 202.385986][ T986] [ 202.385986][ T986] other info that might help us debug this: [ 202.385986][ T986] [ 202.386489][ T986] [ 202.386489][ T986] rcu_scheduler_active = 2, debug_locks = 1 [ 202.386851][ T986] 1 lock held by mausezahn/986: [ 202.387127][ T986] #0: ffffffffac15b5c0 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x1f0/0x18d0 [ 202.387593][ T986] [ 202.387593][ T986] stack backtrace: [ 202.387904][ T986] CPU: 3 UID: 0 PID: 986 Comm: mausezahn Not tainted 6.14.0-rc6-virtme #1 [ 202.387912][ T986] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 202.387915][ T986] Call Trace: [ 202.387918][ T986] [ 202.387922][ T986] dump_stack_lvl+0xb0/0xd0 [ 202.387936][ T986] lockdep_rcu_suspicious+0x1ea/0x280 [ 202.387955][ T986] dev_hard_start_xmit+0x2fc/0x3f0 [ 202.387975][ T986] __dev_queue_xmit+0xfaf/0x18d0 [ 202.387985][ T986] ? __pfx__copy_from_iter+0x10/0x10 [ 202.388000][ T986] ? __pfx_vlan_parse_protocol+0x10/0x10 [8021q] [ 202.388024][ T986] ? __pfx___dev_queue_xmit+0x10/0x10 [ 202.388031][ T986] ? packet_parse_headers+0x231/0x9c0 [ 202.388044][ T986] ? copy_page_from_iter+0xbd/0x120 [ 202.388053][ T986] ? __pfx_packet_parse_headers+0x10/0x10 [ 202.388061][ T986] ? skb_copy_datagram_from_iter+0x29f/0x6f0 [ 202.388089][ T986] packet_snd+0xd0c/0x19d0 [ 202.388110][ T986] ? __lock_release+0x103/0x460 [ 202.388117][ T986] ? __might_fault+0x11b/0x170 [ 202.388129][ T986] ? __pfx_packet_snd+0x10/0x10 [ 202.388134][ T986] ? trace_lock_acquire+0x14c/0x1f0 [ 202.388138][ T986] ? __might_fault+0x11b/0x170 [ 202.388151][ T986] ? lock_acquire+0x32/0xc0 [ 202.388174][ T986] ? __might_fault+0x11b/0x170 [ 202.388194][ T986] __sys_sendto+0x3c3/0x450 [ 202.388205][ T986] ? __pfx___sys_sendto+0x10/0x10 [ 202.388234][ T986] ? sock_ioctl+0x3b6/0x590 [ 202.388242][ T986] ? __pfx___lock_release+0x10/0x10 [ 202.388256][ T986] ? __pfx___up_read+0x10/0x10 [ 202.388273][ T986] ? do_user_addr_fault+0x972/0xe30 [ 202.388290][ T986] ? do_user_addr_fault+0x97c/0xe30 [ 202.388304][ T986] __x64_sys_sendto+0xe0/0x1c0 [ 202.388311][ T986] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 202.388321][ T986] do_syscall_64+0xc1/0x1d0 [ 202.388334][ T986] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 202.388343][ T986] RIP: 0033:0x7fe3c6060a4a [ 202.388351][ T986] 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 [ 202.388355][ T986] RSP: 002b:00007ffc72e5f218 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 202.388361][ T986] RAX: ffffffffffffffda RBX: 00000000111519d0 RCX: 00007fe3c6060a4a [ 202.388365][ T986] RDX: 0000000000001f6a RSI: 00000000111548e2 RDI: 0000000000000005 [ 202.388368][ T986] RBP: 00000000111548e2 R08: 00007ffc72e5f220 R09: 0000000000000014 [ 202.388370][ T986] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 202.388373][ T986] R13: 0000000000001f6a R14: 00007ffc72e5f220 R15: 0000000000000000 [ 202.388401][ T986] [ 273.976538][ T1275] br11: port 2(veth2.11) entered disabled state [ 273.977362][ T1275] br11: port 1(veth1.11) entered disabled state [ 274.080134][ T1277] br10: port 2(veth2.10) entered disabled state [ 274.081173][ T1277] br10: port 1(veth1.10) entered disabled state [ 274.276870][ T1281] veth2.11: left allmulticast mode [ 274.277134][ T1281] veth2.11: left promiscuous mode [ 274.277658][ T1281] br11: port 2(veth2.11) entered disabled state [ 274.602027][ T1289] veth2.10: left allmulticast mode [ 274.602317][ T1289] veth2: left allmulticast mode [ 274.602548][ T1289] veth2.10: left promiscuous mode [ 274.602746][ T1289] veth2: left promiscuous mode [ 274.603291][ T1289] br10: port 2(veth2.10) entered disabled state [ 275.100839][ T1299] veth1.11: left allmulticast mode [ 275.102057][ T1299] veth1.11: left promiscuous mode [ 275.102781][ T1299] br11: port 1(veth1.11) entered disabled state [ 275.381896][ T1305] veth1.10: left allmulticast mode [ 275.382370][ T1305] veth1: left allmulticast mode [ 275.382591][ T1305] veth1.10: left promiscuous mode [ 275.382783][ T1305] veth1: left promiscuous mode [ 275.383308][ T1305] br10: port 1(veth1.10) entered disabled state